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Table 1 Summarized results of normalized EMG values of VMO, VLL and VLO muscles during MVIC knee extension at 90° of flexion and MVIC hip abduction at 0° and 30° of abduction (N = 21) The results are shown as a percentage of MVIC at 50° of knee flexion in a seated position

From: The effect of hip abduction on the EMG activity of vastus medialis obliquus, vastus lateralis longus and vastus lateralis obliquus in healthy subjects

Test procedure

VMO (%)

VLL (%)

VLO (%)

Hip abduction at 30°

   

Male

53.70

88.31

75.70

Female

96.07

119.61

103.98

Hip abduction at 0°

   

Male

69.05

110.62

90.25

female

87.09

100.13

92.30

MIVC at 90° of knee flexion

   

Male

144.91 c

115.31

146.72 d

female

165.97 b

141.30

162.61 a

   p ≤ 0,05

   
  1. Letters demonstrate higher EMG activity of the same muscle in which there were statistically significantly differences between the three exercises
  2. a p = 0,02196 High EMG activity MVIC knee extension at 90° of flexion vs MVIC hip abduction at 0° of abduction
  3. b p = 0,008 High EMG activity MVIC knee extension at 90° of flexion vs MVIC hip abduction at 0° and 30° of abduction
  4. c p = 0,000055 High EMG activity MVIC knee extension at 90° of flexion vs MVIC hip abduction at 0° and 30° of abduction
  5. d p = 0,000761 High EMG activity MVIC knee extension at 90° of flexion vs MVIC hip abduction at 0° and 30° of abduction