According to the material, which of the following statements is true about muscle mass differences by sex?

According to the material, which of the following statements is true about muscle mass differences by sex?

• A. Women biologically have less muscle mass than men
• B. Men have less muscle mass than women
• C. There is no difference in muscle mass between sexes
• D. The material mentions nothing about sex differences

Answer: (A)

Muscle mass differences by sex show that men typically have more lean mass than women, largely due to hormonal influences like higher testosterone that promote greater muscle hypertrophy and larger muscle size. Because of this, the statement that women biologically have less muscle mass than men is the one that aligns with the material. There is plenty of overlap and individual variation, and training can affect muscle mass, but the general pattern described is that men have more skeletal muscle mass on average. The other ideas—no difference, or the reverse, or that the material says nothing about sex differences—do not fit the material’s described pattern.

Muscle mass differences by sex show that men typically have more lean mass than women, largely due to hormonal influences like higher testosterone that promote greater muscle hypertrophy and larger muscle size. Because of this, the statement that women biologically have less muscle mass than men is the one that aligns with the material. There is plenty of overlap and individual variation, and training can affect muscle mass, but the general pattern described is that men have more skeletal muscle mass on average. The other ideas—no difference, or the reverse, or that the material says nothing about sex differences—do not fit the material’s described pattern.