Susan and Laura are having a disagreement over who has more muscular strength. Susan is a distance runner and Laura is a sprinter. Which girl would be more likely to have more muscular strength?

Muscular strength is the ability to produce force. A sprinter like Laura is more likely to have muscles that generate greater force for a short, powerful effort. Susan’s ability to contract repeatedly over a long period describes muscular endurance, not strength, so choice B is best.

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