Activities such as distance swimming and distance running are most likely to stimulate development of
A) slow fatigable muscle fibers.
B) fast fatigable muscle fibers.
C) slow fatigue-resistant fibers.
D) fast fatigue-resistant fibers.

Question

Quizplus · Accepted Answer

Distance swimming and distance running require endurance and the ability to maintain a steady pace for a prolonged time. This type of activity would stimulate the development of slow fatigue-resistant fibers, which have a high capacity for oxidative metabolism and can sustain contractions for an extended period. On the other hand, activities that require short bursts of high-intensity effort, such as weightlifting or sprinting, would stimulate the development of fast fatigable muscle fibers, which have a high capacity for anaerobic metabolism but tire quickly.

Activities Such as Distance Swimming and Distance Running Are Most