Moreover it was shown that ankle plantar-flexion torque is maximal when the ankle joint is dorsiflexed by 15° [ 23] and ankle dorsi-flexion torque is maximal when the ankle joint is plantarflexed by 10-15° 10-15°19].
Three contractions with 90-second recovery intervals were carried out, and the best performance was considered as the torque at maximal voluntary contraction (TMVC).
Torque from maximal voluntary isometric contractions (MVICs) was recorded on a PC for subsequent analysis using Spike data analysis software (Spike 2 V.5.0 for Windows).
Therefore, the effect of the same exercise-induced muscle damage protocol on RBE indicators in males across three lifespan stages (i.e., childhood, adulthood, and old age) remains unclear, especially as regards accepted monitoring markers (i.e., CK, muscle soreness, decrease in electrically induced torque, and maximal voluntary contraction force of quadriceps muscle (MVC)).
During the RTD task, subjects were instructed to perform 5-10 isometricontractionsns, with each contraction performed as quickly and forcefully as possible, but without holding the contraction at maximal torque; the peak torque per unit time (N·m/s) was recorded and calculated offline as the linear slope of the torque-time curve from 10-90% of the fast contractions.
The reliance on measurement of maximal torque rather than examining changes in torque during the range of motion has contributed to the conclusion that hamstring extensibility is probably best explained by stretch tolerance.
Objective characteristics such as the range of motion of the devices, the transparency, the maximal torque that they can provide or the RMS torque during cyclic trajectories are compared to point out which device is better adapted for specific situations.
Therefore, to get a relevant comparison of the contractile speed of muscles between the different subjects independent of absolute maximal torques, MRTDvol was normalized to MVC torque and MRTDstim to triplet torque.
From the attempt with the highest value of VA (the highest MVC), maximal torque capacity (MTC) of the knee extensors was calculated using: MTC = (Maximal voluntary torque) · (VA)−1 · (100%)−1 (de Ruiter et al. 2004a, b, 2006).
An important implicit meaning of a VA level of 90% is that 90% of the maximal torque capacity (MTC) is reached, and that at most, a 10% further increase in torque is possible.
