The purpose of this study was to assess the effects of exercise intensity, age, and fitness levels on executive and nonexecutive cognitive tasks during exercise. Participants completed a computerized modified-Stroop task (including denomination, inhibition, and switching conditions) while pedaling on a cycle ergometer at 40%, 60%, and 80% of peak power output (PPO). We showed that a bout of moderate-intensity (60% PPO) to high-intensity (80% PPO) exercise was associated with deleterious performance in the executive component of the computerized modified-Stroop task (i.e., switching condition), especially in lower-fit individuals (p < .01). Age did not have an effect on the relationship between acute cardiovascular exercise and cognition. Acute exercise can momentarily impair executive control equivalently in younger and older adults, but individual’s fitness level moderates this relation.
Veronique Labelle, Laurent Bosquet, Said Mekary, Thien Tuong Minh Vu, Mark Smilovitch and Louis Bherer
Iker Leoz-Abaurrea, Mikel Izquierdo, Miriam Gonzalez-Izal and Roberto Aguado-Jiménez
The efficacy of the use of an upper body compression garment (UBCG) as an ergogenic aid to reduce thermoregulatory strain in older adults remains unknown. The aim of this study was to evaluate the effects of UBCG on thermoregulatory, cardiorespiratory, and perceptual responses during cycling in a temperate environment (~25 °C, 66% rh) in trained older adults. Twelve cyclists aged 66 ± 2 years performed an intermittent 1-hr cycling trial at 50% of the peak power output followed by 10 min of passive recovery. Participants were provided with either commercially available UBCG or a control garment in a randomized order. UBCG increased thermoregulatory strain during exercise, as indicated by a significantly higher core temperature (38.1 ± 0.3 °C vs. 37.9 ± 0.3 °C; p = .04), body temperature (36.9 ± 0.2 °C vs. 36.7 ± 0.2 °C; p = .01), and thermal sensation (8.0 ± 0.4 vs. 7.5 ± 1.0; p = .02). These results suggest that the use of UBCG in trained older adults does not reduce the thermoregulatory strain during moderate exercise.
Garrett M. Hester, Zachary K. Pope, Mitchel A. Magrini, Ryan J. Colquhoun, Alejandra Barrera-Curiel, Carlos A. Estrada, Alex A. Olmos and Jason M. DeFreitas
.g., RFD), acceleration appears to be more dramatically decreased in older adults compared with PV ( Thompson et al., 2014 ; Wallace et al., 2016 ). Since peak power output typically occurs before PV is achieved, the ability to accelerate quickly to optimal velocity (i.e., velocity at which peak power occurs) is likely
Anna C. Severin, Brendan J. Burkett, Mark R. McKean, Aaron N. Wiegand and Mark G.L. Sayers
only kinematic implications, and few studies have examined the kinetic and neuromuscular aspects of immersion in water on hip function. A recent study reported increased peak power outputs when older adults performed countermovement jumps in water rather than on land ( Louder et al., 2018 ). However
María Hernández, Fabrício Zambom-Ferraresi, Pilar Cebollero, Javier Hueto, José Antonio Cascante and María M. Antón
accepted as valid, performed with the maximum possible load, was determined as the 1RM. After determination of the 1RM values, the muscle peak power output of the leg press exercise was measured. The muscle power of the extensor muscles of the leg and hip was measured during the concentric phase of the
Denver M.Y. Brown and Steven R. Bray
.01.001 Zering , J.C. , Brown , D.M. , Graham , J.D. , & Bray , S.R. ( 2017 ). Cognitive control exertion leads to reductions in peak power output and as well as increased perceived exertion on a graded exercise test to exhaustion . Journal of Sports Sciences, 35 , 1799 – 1807 . doi:10
Harsh H. Buddhadev and Philip E. Martin
older cyclists at 50% and 60% of their respective peak power outputs. At these relative cycling intensities, the power outputs of older adults were 27–32 W lower compared with younger adults. Hopker et al. also contrasted differences in gross efficiency between younger and older cyclists at fixed power
Kristy Martin, Kevin G. Thompson, Richard Keegan and Ben Rattray
taking place on three occasions. During the initial session, participants completed an incremental cycling test to establish maximum oxygen uptake and peak power output (PPO). Maximum oxygen uptake was used to describe participant’s cardiorespiratory fitness. PPO was used to determine the workload of the