All of the following are characteristic of delayed onset muscle soreness (DOMS) EXCEPT: It is more easily evoked by high intensity eccentric vs. high intensity concentric muscle contractions O It results from the accumulation of lactic acid (lactate) in the working skeletal muscle O The associated pain and tenderness peaks 24-48 hours after the exercise bout It is thought to result from the forcible detachment of actin from myosin

44.

Muscle fatigue is assessed by which of the following direct measures? O a. Mean Power Output O b. Muscle lactate concentration O c. Muscle glycogen concentration d. Electromyography

Ca2+ does not play a role in muscle relaxation true or false

Delayed onset muscle soreness caused by lactate. is is not select this choice if the answer depends on the duration of exercise.

Which of the following would NOT occur as a result of regular exercise to a specific muscle group (assume you are resting now, but have been working this muscle group)? more capillaries will grow into the area the muscle cells will build more mitochondria O the muscle cells will build fewer contractile proteins O the muscle cells will increase their glycogen stores

61.

The size principle requires that the muscle fibers controlled by a single motor unit are all the same fiber type True False

Now in your own words, EXPLAIN (1) howa neural impulse is transferred to a muscle cell this is the process of “muscle excitation"), and (2) how the electrical impulse travels into he T-tubules and causes calcium to be released from the sarcoplasmic retículum (this is the process of “excitation-contraction coupling"): OMADidoinos reticulum 5. se mo S1e hosph erah anism

Indicate whether the sentences 4, 5 and 11 is True or False