Skip to Main Content
Table 4.

Loadings from a principal components analysis, including eight variables related to within MG muscle function

VariablePC1PC2PC3
Strainforce onset to force max 0.73 0.15 0.03 
Strainforce max to force offset 0.65 –0.47 –0.35 
Strainswing –0.86 0.38 0.18 
Strainnet 0.92 –0.11 –0.16 
EMGduration 0.18 –0.63 0.74 
EMGonset relative to force onset 0.30 0.69 0.23 
MSA 0.51 0.73 –0.12 
RIA 0.66 0.24 0.56 
VariablePC1PC2PC3
Strainforce onset to force max 0.73 0.15 0.03 
Strainforce max to force offset 0.65 –0.47 –0.35 
Strainswing –0.86 0.38 0.18 
Strainnet 0.92 –0.11 –0.16 
EMGduration 0.18 –0.63 0.74 
EMGonset relative to force onset 0.30 0.69 0.23 
MSA 0.51 0.73 –0.12 
RIA 0.66 0.24 0.56 

PC1, PC2 and PC3 explained 41.8, 23.4 and 13.9% of the total variance,respectively

MG, medial gastrocnemius; EMG, electromyogram; MSA, mean spike amplitude of the EMG burst; RIA, rectified integrated area of the EMG burst

Loadings >0.6 are in bold

Close Modal

or Create an Account

Close Modal
Close Modal