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Table 2 LMM mean difference estimates for lower limb myoelectric activity parameters

From: Robotic body weight support enables safe stair negotiation in compliance with basic locomotor principles

 

Intercept (Base)

ΔBWS20

ΔBWS30

ΔBWS40

ΔBWS50

ΔPost

Δmale

ΔBMI

Ascent

 GMax (%)

Stance

ΔSwing

103.01 (4.72)

3.16 (4.49)

−43.28 (4.49)

−22.04 (4.49)

−50.86 (4.49)

− 22.44 (4.49)

−62.73 (4.49)

− 24.12 (4.49)

−66.63 (4.49)

− 26.10 (4.49)

−3.38 (4.57)

1.67 (4.57)

−5.00 (5.53)

0.76 (1.07)

 BF (%)

Stance

ΔSwing

115.37 (8.00)

− 22.18 (5.84)

− 21.70 (5.84)

−32.67 (5.84)

− 44.63 (5.84)

−6.57 (5.84)

0.10 (10.47)

0.29 (2.03)

−17.77(3.37)

 RF (%)

Stance

ΔSwing

95.54 (5.72)

− 17.05 (4.69)

−19.79 (4.69)

−23.54 (4.69)

−29.08 (4.69)

−9.87 (4.69)

3.38 (7.11)

1.61 (1.38)

13.43 (2.71)

 VL (%)

Stance

ΔSwing

100.43 (5.50)

−1.23 (2.63)

−18.71 (4.56)

−24.82 (4.56)

−31.18 (4.56)

−40.99 (4.56)

−1.80 (4.56)

12.08 (6.80)

0.26 (1.32)

 GM (%)

Stance

ΔSwing

87.44 (7.49)

−18.70 (7.27)

−19.94 (7.27)

− 15.16 (7.27)

−21.64 (7.27)

−1.00 (7.27)

17.76 (8.32)

0.98 (1.62)

17.22 (4.20)

 TA (%)

Stance

ΔSwing

114.44 (15.02)

−7.67 (14.93)

22.58 (14.93)

−6.55 (14.93)

35.35 (14.93)

−4.75 (14.93)

52.77 (14.93)

78.69 (14.93)

−13.79 (14.93)

−13.53 (14.93)

−9.48 (16.95)

0.92 (3.29)

−6.58 (14.93)

−6.88 (14.93)

Descent

 GMax (%)

Stance

ΔSwing

110.18 (5.52)

−0.52 (2.44)

−27.88 (4.14)

−27.60 (4.14)

−26.04 (4.31)

−36.30 (4.22)

−8.56 (4.22)

−9.87 (6.94)

0.33 (1.32)

 BF (%)

Stance

ΔSwing

102.06 (6.16)

7.66 (6.33)

−49.30 (6.33)

−37.28 (6.33)

−54.48 (6.33)

− 37.89 (6.33)

−62.85 (6.33)

− 46.37 (6.33)

−67.80 (6.33)

− 52.72 (6.33)

−5.44 (6.33)

− 0.47 (6.76)

0.01 (1.31)

−30.05 (6.33)

 RF (%)

Stance

ΔSwing

106.11 (7.23)

−35.13 (6.01)

−22.54 (6.01)

−26.61 (6.12)

− 24.13 (6.01)

−23.75 (6.12)

9.89 (8.94)

−3.43 (1.73)

−9.42 (3.50)

 VL (%)

Stance

ΔSwing

96.83 (3.43)

−26.98 (3.33)

−33.68 (3.33)

− 39.07 (3.33)

−44.93 (3.33)

−10.84 (3.33)

6.24 (3.81)

− 2.10 (0.74)

5.08 (1.92)

 GM (%)

Stance

ΔSwing

99.21 (2.79)

2.71 (1.61)

−28.03 (2.80)

−35.55 (2.80)

−46.53 (2.80)

−53.39 (2.80)

−5.82 (2.80)

2.15 (3.01)

0.40 (0.59)

 TA (%)

Stance

ΔSwing

109.84 (7.13)

−2.58 (3.25)

−27.26 (5.64)

− 25.15 (5.64)

−34.54 (5.64)

−37.17 (5.64)

−14.80 (5.64)

1.91 (9.02)

1.90 (1.75)

  1. Estimated intercepts and mean differences to baseline for unloading, mean difference to female population for gender, and mean difference to mean BMI levels of the myoelectric activity LMMs as reported by the lmerTest package. Values in brackets specify averaged model standard errors of the coefficients. Bold coefficients correspond to significant mean differences to baseline from post-hoc testing. Abbreviations: GMax Gluteus maximus, BF Biceps femoris, RF Rectus femoris, VL Vastus lateralis, GM Gastrocnemius medialis, TA Tibialis anterior