11 (a) State two factors that can affect a person’s optimum weight - Edexcel - GCSE Physical Education - Question 11 - 2018 - Paper 1

A power athlete will tend to have increased muscle mass and muscle girth, which makes them heavier, thereby increasing their optimum weight when compared to the endurance athlete.

In contrast, an endurance athlete typically has less muscle mass, resulting in a lower optimum weight compared to the power athlete.