Table 5 Timing of muscle onset and mean activity during the forward step down task before and after the Posterior X Taping (PXT) and Real-Time Feedback (RTF) interventions^{^}

Mean muscle activity, % Peak RMS

 VM

Eccentric

0.92 ± 0.17

0.96 ± 0.12

0.91 ± 0.17

0.95 ± 0.17

.068

.934

.968

Concentric

1.18 ± 0.10

1.17 ± 0.20

1.17 ± 0.16

1.12 ± 0.14

.141

.768

.056

 VL

Eccentric

0.96 ± 0.17

0.98 ± 0.11

0.94 ± 0.19

0.97 ± 0.16

.442

.866

.855

Concentric

1.11 ± 0.10

1.10 ± 0.18

1.12 ± 0.11

1.06 ± 0.11

.216

.385

.345

 Gmed

Eccentric

0.70 ± 0.9

0.82 ± 0.14^a

0.70 ± 0.08

0.75 ± 0.06

.001^*

.394

.131

Concentric

1.16 ± 0.13

1.22 ± 0.12

1.25 ± 0.18

1.23 ± 0.14

.729

.257

.521

 TFL

Eccentric

1.02 ± 0.10

1.02 ± 0.09

1.01 ± 0.11

1.03 ± 0.09

.621

.882

.728

Concentric

1.06 ± 0.13

1.03 ± 0.10

1.13 ± 0.14

1.04 ± 0.09

.108

.441

.361

 VM:VL Ratio

Eccentric

0.95 ± 0.07

0.98 ± 0.07

0.97 ± 0.07

0.98 ± 0.06

.213

.819

.491

Concentric

1.07 ± 0.04

1.06 ± 0.03

1.01 ± 0.06

1.05 ± 0.05

.209

.163

.057

 Gmed:TFL Ratio

Eccentric

0.69 ± 0.10

0.80 ± 0.10^a

0.70 ± 0.09

0.73 ± 0.08

.013^a

.449

.170

Concentric

1.11 ± 0.21

1.18 ± 0.13

1.11 ± 0.17

1.20 ± 0.16

.219

.843

.894

Onset timing, ms

 VM

78.87 ± 76.35

116.80 ± 228.15

104.50 ± 114.93

120.12 ± 134.78

.621

.787

.836

 VL

101.75 ± 101.27

131.50 ± 138.69

157.50 ± 198.78

126.87 ± 104.14

.992

.647

.511

 Gmed

92.63 ± 185.54

22.12 ± 23.02

126.37 ± 266.03

31.37 ± 34.11

.132

.739

.816

 TFL

53.75 ± 53.44

134.62 ± 108.50

117.01 ± 134.80

116.50 ± 89.27

.073

.632

.070