A theoretical model for exercise progressions as part of a complex rehabilitation programme design (BJSM 2017) – http://bjsm.bmj.com/content/early/2017/07/29/bjsports-2017-097486.full
A theoretical model to describe progressions and regressions for exercise rehabilitation (PTIS 2014) – http://www.sciencedirect.com/science/article/pii/S1466853X14000340
Sam’s clinical progression model appears in the latest CSM book by Brukner & Khan. He is also a contributing author discussing “Taping”.