Fig. 6
From: Quality of knee strengthening exercises performed at home deteriorates after one week
Graphs describing no difference between visits for the “V out” and “V in” exercises. 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