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A 1RM lift lasts only a few seconds, relying almost entirely on the phosphagen (ATP-PC) system, which provides immediate ATP. Glycolysis becomes important in efforts lasting 20–90 seconds, and oxidative metabolism dominates in longer-duration exercise. The CSCS exam often links exercise duration to energy system dominance.

Vitamin D facilitates calcium absorption in the intestine and supports bone mineralization. Deficiency increases fracture risk. Vitamin C supports collagen synthesis, Vitamin K aids clotting, and Vitamin B12 supports red blood cell production. Micronutrient performance roles are often tested on the CSCS exam.

A 2-minute high-intensity effort relies primarily on fast glycolysis, which generates ATP through anaerobic breakdown of glucose. The phosphagen system dominates in efforts ≤10 seconds, while oxidative metabolism supports lower-intensity, longer-duration activity. Stored ATP contributes only for the first 1–2 seconds. The CSCS exam emphasizes identifying dominant energy systems across different sports and time frames.

Strength training requires high loads (≥85% 1RM), low reps (1–6), and long rest (2–5 min). Hypertrophy and endurance use different rep ranges. Power requires lighter loads but fast velocities. The CSCS exam stresses accurate training prescriptions by goal.

The NSCA specifies a minimum ceiling height of 12–14 feet to allow safe execution of overhead lifts and plyometric jumps. Lower ceilings risk injury during dynamic movements. While higher ceilings may be beneficial, they are not required. Facility layout and safety standards are emphasized on the CSCS exam.