Key result
Twitch tension area provides a more exact evaluation of motor unit work than tension alone.
Effect estimate: R = 0.963
p-value: p=<0.001
Measuring the area under the tension record provides a more accurate evaluation of work performed by motor units, showing that slow motor units contribute more significantly to muscle work than estimated by tension alone.
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Refines motor unit work estimation in animal models; leaves open translation to human neuromuscular assessment.
Celichowski et al. (1998) studied this question. Measurement of area under twitch tension records was evaluated on Correlation between twitch area and twitch tension (R = 0.963, p=<0.001). The area under the tension record correlated strongly with twitch tension (R = 0.963, P<0.001), providing a more exact evaluation of the work performed by contracting motor units than tension alone.
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