1. High flexion is associated with knee osteoarthritis - of four high flexion postures, flat foot squatting minimizes knee adduction moments 
H.C. Chong, L.M. Tennant, S.M. Acker 
Osteoarthritis and Cartilage 
Volume 25, Pages S122-S123 (April 2017)
DOI: /j.joca
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2. Figure 1
(left to right) flat foot squat, heels raised squat, dorsiflexed kneel, plantarflexed kneel.
Osteoarthritis and Cartilage  , S122-S123DOI: ( /j.joca )
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