How do men do reverse crunches?

Lie on your back with your arms on the floor at your sides, palms facing down. Bend your knees and bring them towards your chest by contracting your abs. As they rise, roll your pelvis to lift your hips off the floor. Squeeze at the top then slowly lower until your thighs are perpendicular to the floor.

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Do flutter kicks work legs?

While bracing your core muscles, alternate lifting one leg and lowering the other for several repetitions. Flutter kicks activate your hip-flexor muscles, lower-back muscles, and quads , while targeting your lower abdominal muscles more than other core workouts like sit-ups and crunches.

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