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ACE PT Ch8
ACE Personal Trainer Study Cards Ch8
| Question | Answer |
|---|---|
| define metabolism. | the chemical and physiological processes in the body that provide energy for the maintenance of life. |
| what is the difference between muscular strength and muscular endurance? | muscular strength: the maximum force that a muscle can produce against resistance in a single, maxima effort. Muscular endurance: the capacity of a muscle to exert force repeatedly against a resistance, or to hold a fixed or static contraction over time. |
| what is a prime mover? | the muscle that contracts concentrically to accomplish the movement in any given joint action. |
| during a biceps curl, which muscle group is recruited during the eccentric contraction? | triceps |
| what is the ideal strength training combination in regard to resistance and repetitions? | 8 - 12 repetitions at 70 - 80 percent of max resistance. |
| name at least four common strength training mistakes. | 1)use too much resistance 2)perform repetitions at a high speed 3)using poor form when performing exercise 4)completing too few or too many repetitions 5)not warming up prior to training 6)not stretching after training 7)not training every muscle |
| what is the difference between dynamic (isotonic) constant resistance equipment and dynamic (isotonic) variable resistance equipment? | dynamic constant resistance equipment: strength training equipment that provides a constant resistance throughout the movement range. dynamic variable resistance equipment: strength training equipment that automatically varies the resistance throughout |
| what is isokinetic equipment? what is an isometric contraction? | isokinetic equipment provides a fixed speed of movement and varies the restive force in accordance with the muscle force. isometric contraction: a contraction in which a muscle exerts force but does not change in length. |
| what are anabolic steroids? | synthetic derivatives of the male sex hormone testosterone. used for their muscle-building characteristics. |
| what is progressive resistance? | gradually adding more resistance during strength training exercises as one's strength increases. |
| what are physiological results of strength training? | increased muscle fiber size, muscle contractile strength, tendon tensile strength, bone strength and ligament tensile strength. |
| give an example of dynamic constant resistance equipment. | barbells. |
| give an example of dynamic variable resistance equipment. | specially designed weight stack machines and air pressure equipment. |
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