Fatigue index (fatigue index, FI) = Pt/P0.
In the long term (12 months), there were no significant differences between the intervention and the comparison groups in physical functioning, diet quality index, fatigue, and energy expenditure as measured by telephone questionnaires (Demark-Wahnefried et al, 2006).
Other than the cytokines of interest, documented variables that might affect cognitive function were also included a priori into the mixed model as fixed effects; these variables were age, years of education, baseline body mass index, fatigue and anxiety [ 7, 10– 13] and the intercept varied as a random effect by each subject.
Three indices of anaerobic performance are computed: peak power output (PP), mean power output (MP) over the 30 seconds of the whole test, and the decrease in power (fatigue index).
For each of peak power, relative peak power, mean power, relative mean power, and fatigue index (FI, %), repeated measures two-way (2 [TRIAL] × 2 [TEST]) ANOVAs were performed to detect main effect and interaction effects.
The interest of all-out tests lasting more than 10 seconds is questionable as the mean power and fatigue indices (difference between peak power and the lower power output) largely depend on aerobic metabolism.
A priori, it was not obvious that the same load is optimal for the peak power, mean power, and fatigue index of the Wingate test.
The purpose of this study was to examine the acute effect of different rest intervals between multiple sets of the 45° angled leg press exercise (LP45) on surface electromyographic (SEMG) spectral and amplitude indices of fatigue.
Blood lactate (mmol/dl) and perceived exertion served as indices of fatigue.
Outcome measures include cardio-respiratory fitness, biomarkers associated with health and survival, and indices of fatigue and quality of life.
