www.smartstretch.com Active Isolated Stretching (AIS) & Core Strengthening Sequence for the Psoas-Iliacus (Hip Flexor). Strengthens Abdominals, Gluteus Maximus, and Hamstrings. For more information and latest in stretching technology, please visit us at www.smartstretch.com

www.smartstretch.com Active Isolated Stretching (AIS) & Core Strengthening Sequence for the Psoas-Iliacus (Hip Flexor). Strengthens Abdominals, Gluteus Maximus, and Hamstrings. For more information and latest in stretching technology, please visit us at www.smartstretch.com

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