Among the following, which component does NOT relate to skill-related fitness?

Skill-related fitness consists of components that directly enhance one's performance in sports and physical activities. These components include agility, speed, coordination, balance, power, and reaction time.

Muscular strength, however, is categorized under health-related fitness, which emphasizes the ability of muscles to exert force and is crucial for overall health and fitness. It is fundamental for daily activities but does not specifically enhance skill performance in the same way the other components do.

Therefore, while agility, speed, and coordination are essential for improving athletic skills and improving performance in various sports, muscular strength serves a different purpose focused more on general physical capability and health.