Bilateral kinematic and kinetic analysis of the squat exercise after anterior cruciate ligament reconstruction1 George J Salem, PhD, Ruben Salinas, DPT,

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Presentation transcript:

Bilateral kinematic and kinetic analysis of the squat exercise after anterior cruciate ligament reconstruction1 George J Salem, PhD, Ruben Salinas, DPT, F.Victor Harding, MA Archives of Physical Medicine and Rehabilitation Volume 84, Issue 8, Pages 1211-1216 (August 2003) DOI: 10.1016/S0003-9993(03)00034-0

Fig 1 Free-body diagram illustrating the direction of the internal (muscular) moments (M) and joint excursion angles (A) for the ankle (a), knee (k), and hip (h) joints. Abbreviations: ASIS, anterior superior iliac spine; PSIS, posterior superior iliac spine. Archives of Physical Medicine and Rehabilitation 2003 84, 1211-1216DOI: (10.1016/S0003-9993(03)00034-0)

Fig 2 Representative net moment/time curves for a single participant for (A) knee extensors and (B) hip extensors. Data are from 3 successive repetitions within a single set; vertical bars identify the time of maximum knee excursion angle; the ascending (ASC) and descending (DES) phases of each repetition are shown. Archives of Physical Medicine and Rehabilitation 2003 84, 1211-1216DOI: (10.1016/S0003-9993(03)00034-0)

Fig 3 The average peak hip extensor moment to peak knee extensor moment ratio. ∗Hip:knee ratio (HKR) was 46.5% greater in the involved limb (P=.02). Archives of Physical Medicine and Rehabilitation 2003 84, 1211-1216DOI: (10.1016/S0003-9993(03)00034-0)