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Health Insights

2026/01/22

Mapping the Body: How Muscle Distribution Shapes Athletic Performance

Two teenage swimmers stand side by side at the poolʹs edge. Both have body fat percentages hovering around 13%. Their total lean body mass is nearly identical. To the casual observer, they look remarkably similar. Yet when the splash settles and the stopwatch clicks at the 50-meter mark, nearly two seconds separate their times. The answer may lie in a detail thatʹs easy to overlook—where their muscles are located.

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