Table 2.

Dimensions of model variations. The model of the average athletes’ dimensions was varied to investigate the effects of proximal aponeurosis width and muscle width on internal muscle tissue strain. For proximal aponeurosis width and muscle width variations, width was varied at each superior–inferior location and over the range of measurements. Widths were set to the minimum dimensions, the average minus one standard deviation, the average plus one standard deviation and the maximum dimensions. The average model corresponds to the average dimensions across all athletes. All other dimensions in the model variations remained at the values listed in Table 1. apo: aponeurosis.

	Aponeurosis width model variations
	Minimum	Average minus standard deviation	Average	Average plus standard deviation	Maximum
Proximal aponeurosis width dimensions (cm)	0.6	0.6	0.7	0.8	0.9	Superior
	1.3	1.5	1.8	2.1	2.4	Middle
	1.2	1.3	1.7	2.1	2.5	Inferior

	Muscle width model variations
	Minimum	Average minus standard deviation	Average	Average plus standard deviation	Maximum
Muscle width dimensions (cm)	1.9	1.9	2.3	2.7	2.9	Superior taper
	4.2	4.3	4.8	5.3	6.0	Distal apo. end
	4.4	4.8	5.2	5.7	5.7	Middle
	3.8	4.2	4.7	5.2	5.3	Proximal apo. end
	2.8	3.1	3.6	4.1	4.4	Inferior taper