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Table 2.

Vastus muscle timing, strain and strain rate during the four phases of muscle activity

Phase	End of phase (% of stance)	Joint motion	Strain (% of fascicle length)	Strain rate (muscle lengths s⁻¹)
1	18±0.3	Flexion	−10.0±0.3	−2.170±0.084
3	36±1.0^{^*}	Extension	−3.0±0.6^{^*}	−0.850±0.158^{^*}
4	61±1.4^{^*}	Flexion	−2.0±0.1	−0.300±0.022
5	84±0.7	Extension	−3.1±0.4^{^*}	−0.556±0.091^{^*}
EMG	59±1.0	-	-	-

Phase	End of phase (% of stance)	Joint motion	Strain (% of fascicle length)	Strain rate (muscle lengths s⁻¹)
1	18±0.3	Flexion	−10.0±0.3	−2.170±0.084
3	36±1.0^{^*}	Extension	−3.0±0.6^{^*}	−0.850±0.158^{^*}
4	61±1.4^{^*}	Flexion	−2.0±0.1	−0.300±0.022
5	84±0.7	Extension	−3.1±0.4^{^*}	−0.556±0.091^{^*}
EMG	59±1.0	-	-	-

Values are means ± s.e.m. averaged over all nine speeds; N=4.

Changed with speed.