Isokinetic exercises require exerting a constant force against an equal and constant opposing force. Maintaining this constant opposing force requires specialized, expensive equipment that most people cannot afford. As a result, these kinds of exercises cannot generally be performed at home.

While weight training will improve muscle strength and mass, the potential of a body to develop muscle is limited in part by genetic factors that are out of an individual's control. Other health and fitness conditions may also limit a person's ability to build sufficient muscle to qualify as a bodybuilder. As a result, not everyone can become a bodybuilder, even with sufficient training.

While aerobic exercise is a good way to burn fat, weight training is also a great way to burn calories. Weight training has very high energy requirements, so even a moderate weight-training workout can burn a large number of calories.

In calisthenics, the resistance is provided by moving the body against the force of gravity. But while body weight is ultimately the force providing the resistance, calisthenics can include exercises with and without muscle movement. Push-ups and sit-ups are isotonic calisthenics that involve muscle movement, while isometric exercises such as yoga require great effort to hold the body motionless in different positions.

Isokinetic exercises require exerting a constant force against an equal and constant opposing force. Maintaining this constant opposing force requires specialized, expensive equipment that most people cannot afford. As a result, these kinds of exercises cannot generally be performed at home.

In calisthenics, the resistance is provided by moving the body against the force of gravity. But while body weight is ultimately the force providing the resistance, calisthenics can include exercises with and without muscle movement. Push-ups and sit-ups are isotonic calisthenics that involve muscle movement, while isometric exercises such as yoga require great effort to hold the body motionless in different positions.

While weight training will improve muscle strength and mass, the potential of a body to develop muscle is limited in part by genetic factors that are out of an individual's control. Other health and fitness conditions may also limit a person's ability to build sufficient muscle to qualify as a bodybuilder. As a result, not everyone can become a bodybuilder, even with sufficient training.

While aerobic exercise is a good way to burn fat, weight training is also a great way to burn calories. Weight training has very high energy requirements, so even a moderate weight-training workout can burn a large number of calories.

A. gets longer as it contracts

D. all of the above

While weight training will improve muscle strength and mass, the potential of a body to develop muscle is limited in part by genetic factors that are out of an individual's control. Other health and fitness conditions may also limit a person's ability to build sufficient muscle to qualify as a bodybuilder. As a result, not everyone can become a bodybuilder, even with sufficient training.

D. Everyone can benefit from lifting weights.

D. Everyone can benefit from lifting weights.

Isokinetic exercises require exerting a constant force against an equal and constant opposing force. Maintaining this constant opposing force requires specialized, expensive equipment that most people cannot afford. As a result, these kinds of exercises cannot generally be performed at home.

While aerobic exercise is a good way to burn fat, weight training is also a great way to burn calories. Weight training has very high energy requirements, so even a moderate weight-training workout can burn a large number of calories.

While weight training will improve muscle strength and mass, the potential of a body to develop muscle is limited in part by genetic factors that are out of an individual's control. Other health and fitness conditions may also limit a person's ability to build sufficient muscle to qualify as a bodybuilder. As a result, not everyone can become a bodybuilder, even with sufficient training.

D. all of the above

A. gets longer as it contracts

D. Everyone can benefit from lifting weights.

A. lunges

D. Everyone can benefit from lifting weights.

A. lunges

A. gets longer as it contracts

While aerobic exercise is a good way to burn fat, weight training is also a great way to burn calories. Weight training has very high energy requirements, so even a moderate weight-training workout can burn a large number of calories.

While weight training will improve muscle strength and mass, the potential of a body to develop muscle is limited in part by genetic factors that are out of an individual's control. Other health and fitness conditions may also limit a person's ability to build sufficient muscle to qualify as a bodybuilder. As a result, not everyone can become a bodybuilder, even with sufficient training.

In calisthenics, the resistance is provided by moving the body against the force of gravity. But while body weight is ultimately the force providing the resistance, calisthenics can include exercises with and without muscle movement. Push-ups and sit-ups are isotonic calisthenics that involve muscle movement, while isometric exercises such as yoga require great effort to hold the body motionless in different positions.

Isokinetic exercises require exerting a constant force against an equal and constant opposing force. Maintaining this constant opposing force requires specialized, expensive equipment that most people cannot afford. As a result, these kinds of exercises cannot generally be performed at home.

In order to develop the muscles of the body evenly, it is important for all major muscle groups to be exercised. A weight-training program that only focuses on a select few areas of the body will neglect areas that are also important. To achieve optimal physical fitness, no single area of the body can be neglected for weight training.