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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