What Do You Understand by Strength Training and Exercise Flashcards

Which of the following substances acts at the NMJ to excite the muscle fibers of the motor unit? acetylcholine ATP creatine phosphate serotonin

Which of the following muscle fiber types would be most benificial for a powerlifter?

When throwing a baseball, the athletes arm is rapidly stretched just prior to throwing the ball. what structure detects and responds to that stretch by reflexively increasing muscle activity?

A college volleyball player begins resistance training for the first time. what muscle fiber types will hypertrophy first? fast twitch slow twitch muscle spindle intrafusal muscle

A 22 yr old soccer player begins resistance training for the first time. his chosen exercises include those for all major muscle groups. after 3 weeks, he notices an increase in lower extremity strength. which of the following best explains this athletes

Which of the following results from adding resistance training to a marathoners aerobic exercise training program? max o2 uptake increases max o2 uptake decreases short-term endurance may improve long-term endurance may improve

A weightlifter adds 30 min of intense (>75% VO2max) stationary bicycle riding every other day to her resistance training program. which of the following describes the effect this addition will have on her performance? strength gains are compromised stre

A bundle of muscle fibers is called

To which of the following structures do the cross-bridges attach during muscle action? actin myosin m-bridge sarcolemma

Which of the following substances regulates muscle actions? potassium calcium phosphorus selenium

Which of the following best describes what occurs during a concentric muscle action? resistance is greater than muscle force resistance is equal to muscle force resistance is less than muscle force negative energy is produced

Which of the following will increase force produced during a concentric muscle action? 1. agonist prestretching 2. more calcium released in the myofibril 3. decreased activity of the antagonist muscle group 4. faster muscle action

Sarcopenia is defined as

The knee joint can be described as cartilaginous synovial axial multiaxial

Most human limbs operate as which class of lever?