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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Muscle Nerve. 2010 Dec;42(6):908–914. doi: 10.1002/mus.21811

Table 2.

Average force (kg) of each muscle group across all individuals.

Male Female
Healthy Affected % difference Healthy Affected % difference
Proximal
Shoulder Flexion 0.50±0.02 0.19±0.03 62.0 0.35±0.03 0.23±0.03 34.3
Shoulder Abduction 0.49±0.02 0.19±0.03 61.2 0.35±0.03 0.22±0.03 37.1
Hip Flexion 1.10±0.04 0.54±0.12 50.9 0.99±0.06 0.73±0.13 26.3
Hip Extension 1.00±0.09 0.25±0.10 75.0 1.08±0.06 0.66±0.11 38.9
Hip Abduction 0.07±0.05 0.20±0.07 71.4 0.63±0.04 0.38±0.05 39.7
Distal
Wrist Flexion 0.74±0.05 0.28±0.04 62.2 0.53±0.03 0.23±0.02 56.6
Wrist Extension 0.84±0.03 0.24±0.05 71.4 0.64±0.04 0.38±0.01 40.6
Plantarflexion 0.84±0.03 0.17±0.07 79.8 0.90±0.03 0.81±0.06 10.0
Dorsiflexion 1.06±0.06 0.42±0.17 60.4 1.04±0.06 0.66±0.04 36.5
Other
Neck Flexion 0.59±0.02 0.26±0.02 55.9 0.39±0.04 0.33±0.04 15.4
Neck Extension 0.78±0.05 0.37±0.05 52.6 0.56±0.06 0.49±0.07 12.5
Elbow Flexion 1.15±0.05 0.44±0.05 61.7 0.90±0.05 0.55±0.05 38.9
Elbow Extension 0.93±0.05 0.35±0.03 62.4 0.57±0.03 0.46±0.08 19.3
Knee Flexion 1.10±0.09 0.56±0.06 49.1 1.00±0.05 0.68±0.13 32.0
Knee Extension 1.14±0.11 0.68±0.10 40.4 1.05±0.08 0.70±0.15 33.3

Muscles are grouped as proximal, distal and other. All values are represented as mean±SEM. Percent difference is calculated as [1-(Affected/Healthy)* 100] for both males and females.