Meanwhile, your leg muscles are typically performing isometric work
(where you produce a lot of tension but your muscles don't move your joint 6 like an even tie during an arm-wrestle).
However, at low speeds, as well as in isometric work
, the differences were not significant.
In isometric work
the IEMG signal--being the expression of muscular intensity--is by many assumed to be proportional to the force generated by the muscle action.
Finally, the isometric exercise for that group is compared to the commercial weight lifting equipment exercise as a ratio of isometric work
to commercial weight lifting work on the same muscle group.