Creatine supplementation is most likely to improve which of the following?

Creatine supplementation is most likely to improve which of the following?

• A. Endurance performance
• B. Lean body mass
• C. Hematocrit
• D. Bone density

Answer: (B)

Creatine works by increasing the phosphocreatine stores in muscle, which boosts the ability to resynthesize ATP during short, high‑intensity efforts. This extra capacity lets you train harder or more volume in each session, and over time that greater training stimulus promotes greater muscle growth. In the early stages, muscles also draw in water, making them look larger and contributing to lean body mass gains. That combination—enhanced high‑intensity performance and the resulting hypertrophy from resistance training—explains why lean body mass is the outcome most likely to improve. Endurance performance relies more on aerobic systems, so creatine’s effects are not as consistent there. Hematocrit isn’t influenced by creatine supplementation, and bone density effects are not a primary or reliably observed outcome.

Creatine works by increasing the phosphocreatine stores in muscle, which boosts the ability to resynthesize ATP during short, high‑intensity efforts. This extra capacity lets you train harder or more volume in each session, and over time that greater training stimulus promotes greater muscle growth. In the early stages, muscles also draw in water, making them look larger and contributing to lean body mass gains. That combination—enhanced high‑intensity performance and the resulting hypertrophy from resistance training—explains why lean body mass is the outcome most likely to improve.

Endurance performance relies more on aerobic systems, so creatine’s effects are not as consistent there. Hematocrit isn’t influenced by creatine supplementation, and bone density effects are not a primary or reliably observed outcome.