Strength & Conditioning coach Charlie Kay demonstrating a GHR Supine Hold with MB extension GHR Supine Hold with MB extension is an anti-extension core exercise used by our team here at Performance Herts.
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T: 01707 284466 available:
Monday-Friday: 11:00-13:00
E: ku.ca.streh@noitpecer.strops
Hertfordshire Sports Village
de Havilland Campus
Hatfield Business Park
Hatfield
AL10 9EU
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Hertfordshire Sports Village, de Havilland Campus, Hatfield Business Park, Hatfield, Herts, United Kingdom, AL10 9EU.