When you row, the major muscles in your arms, legs, and back—particularly the quadriceps, triceps, biceps, deltoids, latissimus dorsi, abdominals, hamstrings, and gluteal muscles—do most of the grunt work, propelling the boat forward against the unrelenting resistance of water and wind. At the same time, scores of smaller muscles in the neck, wrists, hands, and even feet continually fine-tune your efforts, holding the body in constant equipoise in order to maintain the exquisite balance necessary to keep a twenty-four-inch-wide vessel—roughly the width of a man’s waist—on an even keel. The
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