Table 5. EMG integral between age cohort in millivolts (mv) (mean ± SD). First Five-Seconds Last Five-Seconds MVIC Younger cohort 2.52 ± 1.19* 2.81 ± 1.44Z Older cohort 1.12 ± 0.836* 1.34 ± 0.949Z 10% MVIC Younger cohort 0.257 ± 0.154 0.273 ± 0.166 Older cohort 0.228 ± 0.0914 0.261 ± 0.0913 60% MVICY Younger cohort 1.94 ± 1.21 1.99 ± 1.11 Older cohort 1.15 ± 0.640 1.16 ± 0.646 * indicates p < 0.001, Z indicated p < 0.005 Y indicates p < 0.05 for both the first and last-five seconds with data from both younger and older cohort combined. *; d = 1.38 Z; d = 1.23