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Weight training is a form of exercise for developing the strength and size of skeletal muscles. It is a common type of resistance training, which is one form of strength training. Properly performed, weight training can provide significant functional benefits and improvement in overall health and well-being.
In one common training method, the technique involves lifting progressively increasing amounts of weight, and uses a variety of exercises and types of Weight training equipment to target specific muscle groups. Weight training is primarily an anaerobic activity, although some proponents have adapted it to provide the benefits of aerobic exercise.
Weight training differs from bodybuilding, weightlifting, and powerlifting, which are sports rather than forms of exercise. Weight training, however, is often part of their training regimen.
History
Hippocrates explained the principle behind weight training when he wrote "that which is used develops, and that which is not used wastes away." Progressive resistance training dates back at least to Ancient Greece, when legend has it that wrestler Milo of Croton trained by carrying a newborn calf on his back every day until it was fully grown. Another Greek, the physician Galen, described strength training exercises using the halteres (an early form of dumbbell) in the 2nd century.
The dumbbell was joined by the barbell in the latter half of the 19th century. Early barbells had hollow globes that could be filled with sand or lead shot, but by the end of the century these were replaced by the plate-loading barbell commonly used today.Todd, Jan (1995). From Milo to Milo: A History of Barbells, Dumbells, and Indian Clubs. Iron Game History (Vol.3, No.6).
Strength training using isometric exercises was popularised by Charles Atlas from the 1930s onwards. The 1960s saw the gradual introduction of exercise machines into the still-rare strength training gyms of the time. Weight training became increasingly popular in the 1980s, following the release of the bodybuilding movie Pumping Iron and the subsequent popularity of Arnold Schwarzenegger. Since the late 1990s increasing numbers of women have taken up weight training, influenced by programs like Body for Life.
Basic principles
A repetition (or "rep") is the act of lifting and lowering a weight once in a controlled manner. A "set" consists of several repetitions performed one after another with no break between them. The number of repetitions per set depends upon the aims of the individual performing the exercise. Sets with fewer reps are performed using more weight. Repetition tempo is also an important factor.
According to popular theory:
- Sets of one to five repetitions primarily develop strength, with less impact on muscle size and none on endurance.
- Sets of six to twelve repetitions develop a balance of strength, muscle size and endurance.
- Sets of thirteen to twenty repetitions develop endurance, with some increases to muscle size and limited impact on strength.Feigenbaum, Matthew S. and Pollock, Michael L. (1997). Strength Training: Rationale for Current Guidelines for Adult Fitness Programs. The Physician and Sportsmedicine.
- Sets of more than twenty repetitions are considered to be an aerobic exercise.
Individuals typically perform one to six sets per exercise, and one to three exercises per muscle group, with short breaks between each set. The duration of these breaks determines which energy system the body utilizes: for example, performing a series of exercises with little or no rest between them is referred to as "circuit training", and the body will draw most of its energy from the aerobic energy system (as opposed to the ATP-CP or glycogen systems).
It has been shown that for beginners multiple-set training offers minimal benefits over single set training with respect to either strength gain or muscle mass increase, but for the experienced athlete multiple-set systems are required for optimal progress.Laskowski, Edward R. (2004). Strength training: How many sets for best results? MayoClinic.com.Kraemer, William J. (2003). Strength Training Basics: Designing Workouts to Meet Patients' Goals. The Physician and Sportsmedicine.
Training to achieve different performance goals (from "Supertraining" by Dr. M. C. Siff)
| Variable | Strength | Power | Hypertrophy | Endurance |
|---|---|---|---|---|
| Load (% of 1RM) | 80-100 | 70-100 | 60-80 | 40-60 |
| Reps per set | 1-5 | 1-5 | 8-15 | 25-60 |
| Sets per exercise | 4-7 | 3-5 | 4-8 | 2-4 |
| Rest between sets (mins) | 2-6 | 2-6 | 2-5 | 1-2 |
| Duration (seconds per set) | 5-10 | 4-8 | 20-60 | 80-150 |
| Speed per rep (% of max) | 60-100 | 90-100 | 60-90 | 60-80 |
| Training sessions per week | 3-6 | 3-6 | 5-7 | 8-14 |
Weights for each exercise should be chosen so that the desired number of repetitions can just be achieved. Each exercise should be performed according to its description; otherwise injury may result. This is known as "good form."
Progressive overload
In one common method, weight training uses the principle of progressive overload, in which the muscles are overloaded by attempting to lift at least as much weight as they are capable of. They respond by growing larger and stronger.Berger, Christopher (1997). Adaptation of Skeletal Muscle to Resistance Training. Sport and Wellness on the Web (Vol.5, No.2). This procedure is repeated with progressively heavier weights as the practitioner gains strength and endurance.However, performing exercises at the absolute limit of one's strength (so-called "one rep max" lifts) is considered too risky for all but the most experienced practitioners, or novices under expert supervision. Moreover, most individuals wish to develop a combination of strength, endurance and muscle size. One repetition sets are not well suited to these aims. Practitioners therefore lift somewhat smaller (sub-maximal) weights, with more repetitions, to fatigue the muscle—and all fibres within that muscle—as required by the progressive overload principle.
Commonly, each exercise is continued to the point of momentary muscular failure. Contrary to widespread belief, this is not the point at which the individual thinks they cannot complete any more repetitions, but rather the first repetition that fails due to inadequate muscular strength. Training to failure is, however, a controversial topic. The proponents of High Intensity Training—Mike Mentzer, Arthur Jones and Ellington Darden—advise training to failure on every set But other experts believe that this will lead to overtraining, and suggest training to failure only on the last set of an exercise.Stoppani, Jim (2004). [http://www.findarticles.com/p/articles/mi_m0801/is_10_65/ai_n6237328 Fail—to be strong. Muscle & Fitness (Oct 2004). Some practitioners recommend finishing a set of repetitions just before the point of failure; e.g. if you can do a maximum of 12 reps with a given weight, only perform 11.
Weight training can be a very effective form of strength training because exercises can be chosen, and weights precisely adjusted to safely exhaust each individual muscle group after the specific numbers of sets and repetitions that have been found to be the most effective for the individual. Other strength training exercises lack the flexibility and precision that weights offer, and often cannot be safely taken to the point of momentary muscular failure.
Recovery
There are many theories as to why weight training creates muscle growth. One such theory is that this training causes microtrauma to the muscles. Muscles grow during the rest period following a workout by repairs to these areas of muscle, making them stronger than before. Weight training programs should therefore allow the muscles time to repair and grow, otherwise overtraining can occur. Therefore the individual should exercise caution in increasing the level of exertion. Muscle growth is normally completed within 36 to 96 hours, depending upon the intensity of the workout.Anderson, Owen (??). Recovery Time: To train well, you must find the right balance between hard work and recovery. Peak Performance.Berardi, John M. (2002). Muscle recovery. Energy Fitness (Dec 2002). Novices commonly work out every other day, often scheduling workouts on Mondays, Wednesdays and Fridays. As weight trainers grow fitter and stronger, it takes more intense workouts to fully challenge their muscles. More advanced practitioners may exercise specific muscle groups only every three or four days.One solution to scheduling workouts around these needs is to split one's routine between several workouts, by exercising certain muscle groups on one day and the remainder on another. One common two-day split is the upper body — lower body split. Another is the front — back split, in which the pectorals, triceps and quadriceps are exercised on one day, and the lats, biceps and hamstrings on another. There are also three-day and four-day splits. By targeting different muscle groups, workouts can be scheduled more frequently than would otherwise be possible.
Benefits
The benefits of weight training include greater muscular strength, improved muscle tone and appearance, increased endurance, enhanced bone density, and improved cardiovascular fitness.
Many people take up weight training to improve their physical attractiveness. Most men can develop substantial muscles; most women lack the testosterone to do this, but they can develop a firm, "toned" (see below) physique, and they can increase their strength by the same proportion as that achieved by men (but usually from a significantly lower starting point) *. Ultimately an individual's genetics dictate the response to weight training stimuli.
The body's basal metabolic rate increases with increases in muscle mass, which promotes long-term fat loss and helps dieters avoid yo-yo dieting Moreover, intense workouts elevate the metabolism for several hours following the workout, which also promotes fat loss [http://www.scielo.br/pdf/rbme/v10n2/en_a06v10n2.pdf.
Weight training also provides functional benefits. Stronger muscles improve posture, provide better support for joints, and reduce the risk of injury from everyday activities. Older people who take up weight training can prevent some of the loss of muscle tissue that normally accompanies ageing—and even regain some functional strength—and by doing so become less frail They may be able to avoid some types of physical disability. Weight-bearing exercise also helps to prevent osteoporosis [http://healthquarterly.com/summer_2003/default.asp?id=article06. The benefits of weight training for older people have been confirmed by studies of people who began engaging in it even in their 80s and 90s.
Stronger muscles improve performance in a variety of sports. Sport-specific training routines are used by many competitors. These often specify that the speed of muscle contraction during weight training should be the same as that of the particular sport.
When performed properly and at sufficient intensity, weight training provides an excellent stimulus to the cardiovascular system. The heart and lungs support the muscular system; as one taxes the muscles, the systems that support them are taxed. Some exercise physiologists argue that aerobics training is a better cardiovascular stimulus due to their observation of maximal oxygen uptake estimates. However, the test used to determine maximal oxygen uptake is flawed at the higher levels of exertion seen with safe, controlled, and intense strength training. Central catheter monitoring during resistance training reveals increased cardiac output, thus illustrating the strength training's potential for cardiovascular exercise.
One side-effect of intense exercise is that it increases levels of dopamine, serotonin and norepinephrine, which can help to improve mood and counter feelings of depression *.
Common concerns
Is weight training the same as bodybuilding?
Although weight training is similar to bodybuilding, they have quite different goals. Bodybuilders compete in bodybuilding competitions, so they train to maximize their muscular size and develop extremely low levels of body fat. In contrast, most weight trainers train to improve their strength and endurance while not giving special attention to reducing body fat below normal. Weight trainers tend to focus on compound exercises to build basic strength, whereas bodybuilders often use isolation exercises to visually separate their muscles, and to improve muscular symmetry. Pre-contest training for bodybuilders is different again, in that they attempt to retain as much muscular tissue as possible while undergoing severe dieting.However, the bodybuilding community has been the source of many of weight training's principles, techniques, vocabulary, and customs.
Is nutrition relevant for weight trainers?
Most people think of dieting in terms of weight loss, but weight trainers can also adjust their diet to improve the results from their workouts. Adequate protein is required for building skeletal muscle. Various sources advise weight trainers to consume a high protein diet with anywhere from 0.6 to 1.5 g of protein per pound of body weight per day (1.4 to 3.3 g per kg) kidney damage, but studies have shown that kidney problems only occur in people with previous kidney disease [http://www.bellaonline.com/articles/art14944.asp" target="_blank" >*.A light balanced meal consumed prior to the workout (usually one to two hours beforehand) ensures that adequate energy and amino acids are available to perform the intense bout of exercise. Water is consumed throughout the course of the workout to prevent poor performance due to dehydration A protein shake is often consumed immediately following the workout, because both protein uptake and protein usage are increased at this time [http://www.cruciblefitness.com/nutrition/etips/nutrition_protein_synthesis.htm. Glucose (or another simple sugar) is often consumed as well since this quickly replenishes any glycogen lost during the exercise period (see Gainer). Some weight trainers also take supplements (such as creatine) to aid muscle growth. However, the effectiveness of some products is disputed and others are potentially harmful.
Do women who train with weights look "bulky"?
Very few women are able to develop large muscles regardless of the program they follow; they simply lack the testosterone required to achieve this Normally the most that can be achieved is a look similar to that of a fitness model. Muscle is denser than fat, so someone who builds muscle while keeping the same body weight will look slimmer [http://www.physsportsmed.com/issues/1998/05may/ebben.htm.The results obtained by female bodybuilders are extremely atypical: they are self-selected for their genetic ability to build muscle; they perform enormous amounts of exercise; and they often take anabolic steroids, or other drugs with similar effects *. The muscular look is exaggerated by their very low levels of body fat. Unless a woman wishes to dedicate her life to weightlifting, they will never achieve the same results as professional female weightlifters.
Are light, high-repetition exercises effective for "toning" muscles?
Some weight trainers perform light, high-repetition exercises in an attempt to "tone" their muscles without increasing their size. This comes from misunderstanding the meaning of the word "tone." What most people refer to as a toned physique is one that combines reasonable muscular size with moderate levels of body fat. The use of the word "tone" in this sense is inaccurate: a more appropriate term would be "definition".Muscle tone is a physiologic term that refers to the constant, low-frequency contractions that occur in all muscles all the time, even at "rest", which prepare them for future activity. This continuous slight tension in torso muscles contributes to maintaining good posture. High-repetition exercises should increase muscle size, but will not improve the latter type of muscle "tone". Even performed as aerobic exercises they will have limited benefit, since aerobic exercise is most effective when it engages the whole body.
To define muscles requires a combination of weight training to increase muscle size and cardiovascular training to reduce bodyfat levels.
Is weight training safe for children?
Orthopaedic specialists used to recommend that children avoid weight training because the growth plates on their bones might be at risk, but recent studies have shown that this concern is unfounded. The very rare reports of growth plate fractures in children who trained with weights occurred as a result of inadequate supervision, improper form or excess weight. "Growth plate injuries have not occurred in any youth strength training study that followed established training guidelines."The National Strength and Conditioning Association also confirms that "a properly designed and supervised resistance training programme is safe for children." [http://www.nsca-lift.org/Publications/YouthforWeb.pdfYoung children must be supervised around weight training equipment. Like adults, they may be injured if a weight is dropped, or if they perform an exercise incorrectly. Children may also forget to follow the safety guidelines, or be tempted to act irresponsibly.
Can weight training help me slim?
Yes, but not via the low weight/high repetition approach that is usually used. Five minutes of crunches will expend only a small fraction of the energy used up in five minutes of running, because the abdominal muscles are so much smaller than the leg muscles. Instead, high weight/low rep exercises can be used to maintain (and possibly even increase) the body's muscle mass while dieting. This helps to prevent the metabolic slowdown that otherwise often limits the effect of dieting and causes post-diet weight gain. [http://www.physsportsmed.com/issues/2003/1103/anderson.htmSafety
Weight training can be one of the safest forms of exercise, especially when the movements are slow, controlled, and carefully defined. However, as with any form of exercise, improper execution can result in injury. When the exercise becomes difficult towards the end of a set, there is a temptation to "cheat", i.e. to use poor form to recruit other muscle groups to assist the effort. This may shift the effort to weaker muscles that cannot handle the weight. For example, the squat and the deadlift are used to exercise the largest muscles in the body—the leg and buttock muscles—so they require substantial weight. Beginners are tempted to round their back while performing these exercises. This causes the weaker lower back muscles to support much of the weight, which can result in serious lower back injuries. To avoid such problems, weight training exercises must be performed correctly. Hence the saying: "train, don't strain".
An exercise should be halted if marked or sudden pain is felt, to prevent further injury. However, not all discomfort indicates injury. Weight training exercises are brief but very intense, and many people are unaccustomed to this level of effort. The expression "no pain, no gain" refers to the discomfort expected from such vigorous effort. It does NOT suggest ignoring the more severe pain that comes from injury.
Discomfort can arise from other factors. Individuals who perform large numbers of repetitions, sets and exercises for each muscle group may experience lactic acid build-up in their muscles. This is experienced as a burning sensation in the muscle, but it is perfectly harmless. These individuals may also experience a swelling sensation in their muscles from increased blood flow (the "pump"), which is also harmless.
Beginners are advised to build up slowly to a weight training programme. Untrained individuals may have some muscles that are comparatively stronger than others. An injury can result if, in a particular exercise, the primary muscle is stronger than its stabilising muscles. Building up slowly allows muscles time to develop appropriate strengths relative to each other. This can also help to minimise delayed onset muscle soreness. A sudden start to an intense programme can cause significant muscular soreness. Unexercised muscles contain cross-linkages that are torn during intense exercise.
Weight trainers commonly spend 5 to 20 minutes warming up their muscles with aerobic exercise before starting a workout. They also stretch muscles after they have been exercised. The exercises are performed at a steady pace, taking at least two to four seconds to lift and lower the weight, to avoid jerks that can damage muscles and joints.
Exercises where a barbell is held above the body, such as the squat or the bench press, are normally performed inside a squat cage, which can catch the bar, or in the presence of one or more spotters, who can safely re-rack the barbell at the end of the set if the weight trainer is unable to do so.
Anyone beginning an intensive physical training programme is typically advised to consult a physician, because of possible undetected heart or other conditions for which such activity is contraindicated.
There have been mixed reviews regarding the use of weightlifting belts and other devices, such as lifting straps. Critics claim that they allow the lifter to use more weight than they should. In addition, the stabiliser muscles in the lower back and gripping muscles in the forearms receive less benefit from the exercises.
Types of exercises
Isotonic, isometric and plyometric exercises
These terms combine the prefix "iso" (meaning "same") with "tonic" (strength) and "metric" (distance). In "isotonic" exercises the force applied to the muscle does not change, and in "isometric" exercises the length of the muscle does not change.Weight training is primarily an isotonic form of exercise, because the muscles are used to push or pull weighted objects. Any object can be used for weight training, but dumbbells, barbells and other specialised equipment are normally used because they can be adjusted to specific weights, and are easily gripped. However, some exercises are not strictly isotonic because the force on the muscle varies as the joint moves through its range of motion, even though the force of the exercise remains constant.
Some forms of weight training use isometric contractions to further stress the muscles after or during a period of isotonic exercise. In this case the muscles flex and hold a stationary position, and no movement of a load takes place.
Another form of training that often uses weights has a different goal. Plyometric exercises exploit the stretch-shortening cycle of muscles to enhance the myotatic (stretch) reflex. This involves rapid alternation of lengthening and shortening of muscle fibers against a resistance. The resistance involved is often a weighted object such as a medicine ball, but can also be the body itself as in jumping exercises. Plyometrics is used to develop explosive speed, and focuses on power instead of maximal strength, and may be used to improve the effectiveness of a boxer's punch, for example, or to increase the vertical jumping ability of a basketball player.
Isolation exercises vs. compound exercises
An isolation exercise is one where the movement is restricted to one joint and one muscle group. For example, the leg extension is an isolation exercise for the quadriceps. The other muscle groups are only minimally involved—they just help the individual maintain a stable posture—and movement occurs only around the knee joint.Compound exercises work several muscle groups at once, and include movement around two or more joints. For example, in the leg press movement occurs around the hip, knee and ankle joints. This exercise is primarily used to develop the quadriceps, but it also involves the hamstrings, glutes and calves.
Compound exercises are generally similar to the ways that people naturally push, pull and lift objects, whereas isolation exercises often feel a little unnatural.
Each type of exercise has its uses. Compound exercises build the basic strength that is needed to perform everyday pushing, pulling and lifting activities. Isolation exercises are useful for "rounding out" a routine, by directly exercising muscle groups that cannot be fully exercised in the compound exercises.
The type of exercise performed also depends on the individual's goals. Those who seek to increase their performance in sports would focus mostly on compound exercises, with isolation exercises being used to strengthen just those muscles that are holding the athlete back. Similarly, a powerlifter would focus on the specific compound exercises that are performed at powerlifting competitions. However, those who seek to improve the look of their body without necessarily maximising their strength gains (including bodybuilders) would put more of an emphasis on isolation exercises.
Free weights vs. exercise machines
Free weights are dumbbells and barbells. Unlike exercise machines, they do not constrain users to specific, fixed movements, and therefore require more effort from the individual's stabiliser muscles. It is often argued that free weight exercises are superior for precisely this reason. As exercise machines can go some way toward preventing poor form, they are somewhat safer than free weights for novice trainees. Moreover, since users need not concentrate so much on maintaining good form, they can focus more on the effort they are putting into the exercise. However, most athletes, bodybuilders and serious fitness enthusiasts prefer to use compound free weight exercises to gain functional strength.Some free weight exercises can be performed while sitting or lying on a Swiss ball. This makes it more difficult to maintain good form, which helps to exercise the deep torso muscles that are important for maintaining a good posture.
There are a number of exercise machines that are commonly found in neighbourhood gyms. The Smith machine is a barbell that is constrained to move only vertically upwards and downwards. The cable machine consists of two weight stacks separated by 2.5 metres, with cables running through adjustable pulleys (that can be fixed at any height) to various types of handles. There are also exercise-specific weight machines such as the leg press. A multigym includes a variety of exercise-specific mechanisms in one apparatus.
One limitation of many free weight exercises and exercise machines is that the muscle is working maximally against gravity during only a small portion of the lift. Some exercise-specific machines feature an oval cam (first introduced by Nautilus) which varies the resistance so that the resistance, and the muscle force required, remains constant throughout the full range of motion of the exercise.
Aerobic exercise vs. anaerobic exercise
Strength training exercise is primarily anaerobic. Even while training at a lower intensity (training loads of ~20-RM), anaerobic glycolysis is still the major source of power, although aerobic metabolism makes a small contribution. [http://www.physsportsmed.com/issues/2003/0303/knuttgen.htm Weight training is commonly perceived as anaerobic exercise, because one of the more common goals is to increase strength by lifting heavy weights. Other goals such as rehabilitation, weight loss, body shaping, and bodybuilding often use lower weights, adding aerobic character to the exercise.Except in the extremes, a muscle will fire fibres of both the aerobic or anaerobic types on any given exercise, in varying ratio depending on the load on the intensity of the contraction. This is known as the energy system continuum. At higher loads, the muscle will recruit all muscle fibres possible, both anaerobic ("fast-twitch") and aerobic ("slow-twitch"), in order to generate the most force. However, at maximum load, the anaerobic processes contract so forcefully that the aerobic fibers are completely shut out, and all work is done by the anaerobic processes. Because the anaerobic muscle fibre uses its fuel faster than the blood and intracellular restorative cycles can resupply it, the maximum number of repetitions is limited. [http://www.chiroweb.com/archives/18/07/06.html In the aerobic regime, the blood and intracellular processes can maintain a supply of fuel and oxygen, and continual repetition of the motion will not cause the muscle to fail.
Circuit weight training is a form of exercise that uses a number of weight training exercise sets separated by short intervals. The cardiovascular effort to recover from each set serves a function similar to an aerobic exercise, but this is not the same as saying that a weight training set is itself an aerobic process.
Exercises for specific muscle groups
Weight trainers commonly divide the body's individual muscles into ten major muscle groups. These do not include the hip, neck and forearm muscles, which are rarely trained in isolation. The most common exercises for these muscle groups are listed below. (Videos of these and other exercises are available at exrx.net and from the University of Wisconsin.) The sequence shown below is one possible way to order the exercises. The large muscles of the lower body are normally trained before the smaller muscles of the upper body, because these first exercises require more mental and physical energy. The core muscles of the torso are trained before the shoulder and arm muscles that assist them. Exercises often alternate between "pushing" and "pulling" movements to allow their specific supporting muscles time to recover. The stabilising muscles in the waist should be trained last.
| Lower body | Upper body | Arms |
Advanced techniques
A number of techniques have been developed to make weight training exercises more intense, and thereby potentially increase the rate of progress:
Set structure
- Drop sets: Drop sets do not end at the point of momentary muscular failure, but continue with progressively lighter weights.
- Pyramiding: Pyramiding involves increasing weights and lowering reps. The first set is performed with a weight that would seem challenging for a higher number of reps, in subsequent sets this weight is increased and the reps decreased so that the new weight seems challenging for the smaller number of reps.
- Burnouts: Burnouts combine pyramids and drop sets, working up to higher weights with low reps and then back down to lower weights and high reps.
- Diminishing set: The diminishing set method is where you choose a weight that you can lift for 20 reps (in one set) and perform 70 reps in as few sets as possible.Kennedy, Robert and Ross, Don (1988). Muscleblasting! Brief and Brutal Shock Training. Sterling Publishing Co., Inc., p. 17
Combined sets
- Supersets: Supersets combine two or more exercises with similar motions to maximize the amount of work of an individual muscle or group of muscles. The exercises are performed with no rest period between the exercises. An example would be doing bench press, which predominantly works the pectoralis and triceps muscles, and then moving to an exercise that works just the triceps such as the triceps extension or the pushdown.
- Push-pull supersets: Push-pull supersets are similar to regular supersets, but exercises are chosen which work opposing muscle groups.
- Pre-exhaustion: Pre-exhaustion combines an isolation exercise with a compound exercise for the same muscle group. The isolation exercise first exhausts the muscle group, and then the compound exercise uses the muscle group's supporting muscles to push it further than would otherwise be possible. For example, the triceps muscles normally help the pectorals perform their function. But in the bench press the weaker triceps often fails first, which limits the impact on the pectorals. By preceding the bench press with the flye, the pectorals can be pre-exhausted so that both muscles fail at the same time, and both benefit equally from the exercise.
- Breakdowns: Breakdowns were developed by Fred Hatfield and Mike Quinn to work the different types of muscle fibers for maximum stimulation. Three different exercises that work the same muscle group are selected, and used for a superset. The first exercise uses a heavy weight (~85% of 1 rep max) for around five reps, the second a medium weight (~70% of 1 rep max) for around twelve reps, and finally the third exercise is performed with a light weight (~50% of 1 rep max) for twenty to thirty reps, or even lighter (~40% of 1 rep max) for forty or more reps. (Going to failure is discouraged.) The entire superset is performed three times.Kennedy, Robert and Ross, Don (1988). Muscleblasting! Brief and Brutal Shock Training. Sterling Publishing Co., Inc., pp. 16-17
Beyond failure
- Forced reps: Forced reps occur after momentary muscular failure. An assistant provides just enough help to get the weight trainer past the sticking point of the exercise, and allow further repetitions to be completed. Weight trainers often do this when they are spotting their exercise partner. With some exercises forced reps can be done without a training partner. For example, with one-arm bicep curls the other arm can be used to assist the arm that is being trained.
- Cheat reps: Cheating is a deliberate compromise of form in order to achieve further reps. Cheating has the advantage that it can be done without a training partner, unlike forced reps.
- Negative reps: Negatives are performed with much heavier weights. Assistants lift the weight, and then the weight trainer attempts to resist its downward progress. Alternatively, an individual can use an exercise machine for negatives by lifting the weight with both arms or legs, and then lowering it with only one. Or they can simply lower weights more slowly than they lift them: for example, by taking two seconds to lift each weight and four seconds to lower it.
- Partial reps: Partial reps, as the name implies, involves movement through only part of the normal path of an exercise. Partial reps can be performed with heavier weights. Usually, only the easiest part of the repetition is attempted.
- Burns: Burns involve mixing partial reps into a set of full range reps in order to increase intensity. The partials can be performed at any part of the exercise movement, depending on what works best for the particular exercise. * Also, the partials can either be added after the end of a set or in some alternating fashion with the full range reps.Kennedy, Robert and Weis, Dennis (1986), Mass!, New Scientific Bodybuilding Secrets, Contemporary Books For example, after performing a set of bicep curls to failure, an individual would cheat the bar back to the most contracted position, and then perform several partial reps.
- X-reps: X-reps are a variation of burns, but X-reps always occur after momentary muscular failure. After the last full repetition, an isometric contraction at the point of maximum force is combined with a series of small pulsing movements to further stress the muscles. In other words, "go to failure, then do mid-range partials." *
Other techniques
- Super slow: Super slow repetitions are performed with lighter weights. The lifting and lowering phases of each repetition take 10 seconds or more.
- Timed rests: By strictly controlling the rest periods between reps and sets a trainer can reduce their level of blood oxygenation, which helps to increase the stress on the muscles.
- Rest-pause (heavy singles): Rest-pause heavy singles are performed at or very near 1RM with very little rest (10-20 seconds) in between.Kennedy, Robert (1983). Beef It! Upping the Muscle Mass, Advanced Nutrition, Shock-training Strategies. Sterling Publishing Co., Inc., p. 31* Repeat the process 6-8 times. It is generally recommended to use this method infrequently.
- Rest-pause (post-failure): Do a normal set of 6-8 reps to failure. Rack the weight, take 10-15 deep breaths, and then do one more rep. Repeat for two more reps.**
- 20 Rep Squat: The 20 rep squat is another rest-pause technique. With this method, you do squats at a weight you can handle for 12-15 reps and then do rest-pause reps to 20.*
- Wrist straps: Wrist straps (lifting straps) are sometimes used to assist in gripping very heavy weights. They are particularly useful for the deadlift. Some lifters, however, avoid using wrist straps in order to develop their grip strength. Wrist straps can allow a lifter initially to use more weight than they might be able to handle safely for an entire set. They can also place potentially harmful stress on the bones of the wrist. For lifters who desire an overall balance in their muscular development, the use of wrist straps should probably be avoided. Instead, wrist curls and reverse wrist curls can be done to improve grip strength.
See also
Bibliography
Many of the most useful books about weight training contain the word "bodybuilding" in the title, but they should not be overlooked just for this reason. Weight trainers who are not interested in bodybuilding can ignore the material devoted to contest preparation, and still obtain much valuable information.
- Darden, Ellington (2004). The New High Intensity Training. Rodale Books. ISBN 1594860009.
- Delavier, Frederic (2001). Strength Training Anatomy. Human Kinetics Publishers. ISBN 0736041850.
- DeLee, J. MD and Drez, D. MD, Eds. (2003). DeLee & Drez's Orthopaedic Sports Medicine; Principles and Practice (vols 1 & 2). ISBN 0721688454.
- Hatfield, Frederick (1993). Hardcore Bodybuilding: A Scientific Approach. McGraw-Hill. ISBN 0809237288.
- Kennedy, Robert and Ross, Don (1988). Muscleblasting! Brief and Brutal Shock Training. Sterling Publishing Co., Inc. ISBN 0-8069-6758-7
- Kennedy, Robert and Weis, Dennis (1986), Mass!, New Scientific Bodybuilding Secrets, Contemporary Books, ISBN 0809249405
- Lombardi, V. Patteson (1989). Beginning Weight Training. Wm. C. Brown Publishers. ISBN 0697106969.
- Pearl, Bill (2001). Getting Stronger: Weight Training for Men and Women. Shelter Publications. ISBN 0936070242.
- Powers, Scott and Howley, Edward (2003), Exercise Physiology. McGraw Hill. ISBN 0072557281.
- Schoenfeld, Brad (2002). Sculpting Her Body Perfect. Human Kinetics Publishers. ISBN 0736044698.
- Schwarzenegger, Arnold (1999). The New Encyclopedia of Modern Bodybuilding. Simon & Schuster. ISBN 0684857219.
Footnotes
Bodybuilding | Exercise physiology | Exercise | Weight training
"Weight training"