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Fig. 4 | BMC Musculoskeletal Disorders

Fig. 4

From: Quality of knee strengthening exercises performed at home deteriorates after one week

Fig. 4

Graphs of the hip and knee angles during “V out” and “V in” exercise. The graphs represent only participant 6. A: knee angles in the sagittal plane (flexion/extension) and B: hip angle in the transverse plane (rotation) during the “V out” exercise; C: knee angles in the sagittal plane (flexion/extension) and D: hip angle in the transverse plane (rotation) during the “V in” exercise. Solid lines represent the average of 5 repetitions for each exercise at the first visit while dotted lines represent the same for the second visit; the shaded gray area around each line represents standard deviation of the 5 repetitions; X-axis: time normalized in percentage

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