As part of a circuit weight training program, your patient performs 2 sets of 10 repetitions of biceps curls at 70% of a 1 repetition maximum (RM), resting briefly between sets.Which of the following energy systems is primarily being used?
A)Phosphagen system
B)Anaerobic-glycolytic system
C)Aerobic system
D)ATP-PC (adenosine triphosphate-phosphocreatine) system

Question

Quizplus · Accepted Answer

The anaerobic-glycolytic system is primarily used for high-intensity, short-duration exercises such as weightlifting. This system relies on stored glycogen in the muscles to produce energy. The use of 70% of 1RM with 2 sets of 10 repetitions suggests a moderate to high level of intensity, which would engage the anaerobic-glycolytic system. The phosphagen system and ATP-PC system are used for very short, intense bursts of activity, while the aerobic system is used for lower-intensity, longer-duration exercise.

As Part of a Circuit Weight Training Program, Your Patient