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Go Hard Core: 5 Ab Exercises for a Faster Run
Get a whittle faster. In a study, runners who did these moves four times weekly shaved a minute off their 5K times in six weeks. Try two sets of 12 reps each.
Lie faceup on floor with heels on ball, legs extended, arms by sides. Lift hips, forming a diagonal line from heels to shoulders. Hold for 1 count; lower.
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