Final answer:
Body weight and composition have a direct effect on exercise performance and can be manipulated for athletes to enhance musculature and performance in specific sports.
Step-by-step explanation:
The direct effect of body weight and composition can be divided into the visibility of body size and biomechanical changes in exercise performance. Body weight and composition have a direct effect on exercise performance and can be manipulated for athletes to enhance musculature and performance in specific sports.
For athletes, body weight and composition are important factors that can be manipulated through energy intake and protein to enhance musculature and performance in specific sports. However, it is essential to understand that there is no single optimal body composition recommended for all athletes.