Acute Cartilage Loading Responses After an In Vivo

Acute Cartilage Loading Responses After an In Vivo Squatting Exercise in People With Doubtful to Mild Knee Osteoarthritis: A Case-Control Study by Ans Van Ginckel, and Erik Witvrouw ptjournal Volume 93(8): 1049 -1060 July 31, 2013 © 2013 American Physical Therapy Association

Participant Characteristicsa. Ans Van Ginckel, and Erik Witvrouw PHYS THER 2013; 93: 1049 -1060 © 2013 American Physical Therapy Association

Schematic overview of the sequence of events during the magnetic resonance imaging experimental protocol. 1– 3=postexercise scans obtained within 90 seconds after exercise cessation (tpostt 0), at 15 minutes after tpostt 0, and at 30 minutes after tpostt 0, respectively; bpm=beats per minute; 3 D DESS WE=3 -dimensional double-echo steady-state sequence with water excitation; TSE=turbo–spin-echo (sequence). Ans Van Ginckel, and Erik Witvrouw PHYS THER 2013; 93: 1049 -1060 © 2013 American Physical Therapy Association

Illustration of the subregions used in this study, as defined in the whole-organ MRI score system. 35 The femoral and tibial surfaces were divided into anterior (A), central (C), and posterior (P) regions. Ans Van Ginckel, and Erik Witvrouw PHYS THER 2013; 93: 1049 -1060 © 2013 American Physical Therapy Association

In Vivo Cartilage Deformation and Recovery Revealed by Three-Dimensional Volume Changes After Exercisea. Ans Van Ginckel, and Erik Witvrouw PHYS THER 2013; 93: 1049 -1060 © 2013 American Physical Therapy Association

In Vivo Cartilage Deformation Patterns Revealed by Subregional Analysis of Three-Dimensional Volume Changesa. Ans Van Ginckel, and Erik Witvrouw PHYS THER 2013; 93: 1049 -1060 © 2013 American Physical Therapy Association