Table 2. Changes of RMS standard values of each muscle in semi-squat.
Muscle Different pressure Semi-squat intervention Interaction Time main
Set1 Set2 Set3 Set4 Within-subject Inter-subject
Vastus Medialis VMO) Non-BFR 218.00 ± 33.95 221.61 ± 35.07 222.30 ± 36.77 223.57 ± 35.86 2.48# 3.53# 4.54#
50%AOP 241.10 ± 38.36∆ 242.47 ± 39.84∆ 245.82 ± 37.01*∆ 247.75 ± 38.39 *∆
60%AOP 241.19 ± 30.20∆ 245.97 ± 29.86∆ 248.85 ± 31.34*∆ 250.56 ± 29.77*∆
70%AOP 248.49 ± 33.74∆ 251.45 ± 33.82∆†  254.69±31.92*∆†  257.61±33.03*∆† 
Vastus Lateralis (VLO) Non-BFR 228.19 ± 31.63 229.57 ± 34.60 230.24 ± 35.02 231.27 ± 35.41 5.98# 12.36# 1.65#
50%AOP 237.29 ± 35.57∆ 239.30 ± 33.80∆ 242.84 ± 33.66∆ 244.33 ± 31.01*∆
60%AOP 236.91 ± 36.28∆ 240.36 ± 36.69∆ 244.72 ± 29.26*∆ 247.28 ± 33.17*∆
70%AOP 240.37 ± 37.32∆ 243.34 ± 34.31∆ 247.70 ± 36.50*∆ 253.27±34.01*∆† 
Rectus Femoris (RF) Non-BFR 191.71 ± 26.08 192.91 ± 29.87 195.52 ± 24.60 201.93 ± 25.10* 1.08 2.55# 3.17#
50%AOP 207.22 ± 29.11∆ 208.32 ± 27.26∆ 210.05 ± 27.18∆ 213.89 ± 29.96*∆
60%AOP 210.09 ± 22.03∆ 214.91 ± 21.60∆ 217.83 ± 22.91*∆ 222.45±22.08*∆† 
70%AOP 214.87 ± 22.06∆ 217.87 ± 28.12∆†  221.12±31.67*∆†  225.42±25.09*∆† 
Biceps Femoris (BF) Non-BFR 63.26 ± 11.79 64.84 ± 16.42 66.65 ± 17.10 70.04 ± 14.61* 1.07 11.45# 3.09#
50%AOP 70.53 ± 12.18∆ 72.29 ± 10.12∆ 73.29 ± 19.92∆ 76.77 ± 22.17*∆
60%AOP 72.16 ± 18.26∆ 75.17 ± 17.90∆ 77.18 ± 15.28∆ 79.91 ± 16.33*∆
70%AOP 77.64 ± 17.16∆ 80.41 ± 15.02∆ 84.80±16.04*∆†  87.81±17.32*∆† 
Gluteus Maximus (GM) Non-BFR 68.42 ± 11.33 68.49 ± 12.92 69.82 ± 9.99 70.52 ± 10.56 2.67# 4.56# 4.88
50%AOP 70.76 ± 14.01 71.25 ± 24.00 68.30 ± 12.43 67.32 ± 13.31*
60%AOP 71.57 ± 14.15 70.99 ± 17.39 69.25 ± 18.86 66.89 ± 15.38*
70%AOP 73.10 ± 10.61∆ 71.75 ± 13.54 69.07 ± 10.91 68.27 ± 13.27*
Gluteus Medius (Gmeds) Non-BFR 61.72 ± 7.79 62.18 ± 7.26 62.03 ± 9.67 63.67 ± 10.15 1.95 4.39 1.71
50%AOP 64.66 ± 4.76 64.84 ± 5.12 62.75 ± 4.61 62.49 ± 4.85
60%AOP 63.88 ± 12.77 62.75 ± 10.91 64.04 ± 10.46 65.37 ± 12.65
70%AOP 65.24 ± 13.64 64.23 ± 13.28 66.28 ± 12.59 66.66 ± 13.27
Data are presented as mean±SD.* significant difference compared to the first group∆ significant difference compared to the non-BFR†  significant difference compared to the 50% AOP# significant difference in the pressure, time, and interaction on the standard values of RMS for each muscle during the semi-squat. p < 0.05.