Abs are one of the most powerful muscle groups in the body. Strong abs help with posture, the transfer of muscle power from the upper body to the lower body (and back again) and help prevent lower back pain by better supporting the spine. Theyre...

Abs are one of the most powerful muscle groups in the body. Strong abs help with posture, the transfer of muscle power from the upper body to the lower body (and back again) and help prevent lower back pain by better supporting the spine. Theyre...

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