The stability ball leg extension crunch combines a push exercise (leg extension) with a pull exercise (crunch) to produce a rarely seen compound movement.
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Hướng dẫn Aerobic eo thon dáng đẹp với các chuyên gia thể dục hàng đầu
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This total-body ZEN•GA workout with the Mini Stability Ball will activate your core & challenge your balance throughout the deep muscle systems of the
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