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Table 1 The median frequency and MSE of EMG of tibialis anterior (TA) and gastrocnemius (GM), and peak plantar pressure (PPP) of four plantar regions

From: Effects of various walking intensities on leg muscle fatigue and plantar pressure distributions

Parameter Region Speed & Duration
1.8 mph & 1.8 mph & 3.6 mph & 3.6 mph & 5.4 mph & 5.4 mph &
10-min (Mean ± SE) 20-min (Mean ± SE) 10-min (Mean ± SE) 20-min (Mean ± SE) 10-min (Mean ± SE) 20-min (Mean ± SE)
Median frequency (Hz) TA 185.7 ± 6.1 179.9 ± 5.8 165.0 ± 3.1 163.0 ± 4.4 164.6 ± 5.5 162.6 ± 4.9
GM 177.0 ± 7.3 174.2 ± 9.2 162.4 ± 9.4 158.5 ± 9.5 159.5 ± 6.6 160.0 ± 6.7
MSE (CI) TA 0.886 ± 0.030 0.897 ± 0.041 0.840 ± 0.0450.039 0.858 ± 0.040 0.989 ± 0.045 0.939 ± 0.041
GM 0.662 ± 0.045 0.642 ± 0.036 0.703 ± 0.0410.026 0.758 ± 0.0360.045 0.644 ± 0.032 0.622 ± 0.030
PPP (kPa) T1 275.4 ± 48.7 333.8 ± 64.9 460.8 ± 66.5 456.0 ± 87.9 509.1 ± 90.7 548.7 ± 77.4
M1 369.4 ± 59.3 408.3 ± 70.2 462.4 ± 64.4 575.5 ± 109.9 591.4 ± 87.3 601.4 ± 77.9
M2 587.0 ± 67.0 583.6 ± 57.0 567.4 ± 75.4 606.8 ± 83.4 613.0 ± 84.1 719.2 ± 79.4
HL 313.5 ± 41.9 350.0 ± 43.0 491.4 ± 53.9 527.9 ± 81.6 403.8 ± 63.4 410.7 ± 58.1
  1. TA Tibialis anterior, GM Gastrocnemius medialis, MSE Multiscale entropy, CI Complexity index, T1 1st toe, M1 1st metatarsal head, M2 2nd metatarsal head, and HL heel, SE Standard error