Comparison of perceptual responses between different upper-body sprint interval exercise protocols.

This study examined the perceptual responses to various upper-body sprint interval exercise (SIE) protocols matched for total work and work/rest ratio. Fourteen active men (24 ± 4 years, BMI = 26.2 ± 2.7 kg/m2, body fat = 11.5 ± 4.4%) participated in 3 all-out SIE protocols consisting of battling rope exercise: P10:30 (12 × 10-s bouts with 30-s recovery); P15:45 (8 × 15-s bouts with 45 s recovery); and P30:90 (4 × 30-s bouts with 90-s recovery). During exercise, affective valence (FS +5 to -5), arousal (FAS 1-6), rating of perceived exertion (RPE 6-20), and heart rate (HR) were assessed. Post-exercise, enjoyment, self-efficacy, and intentions were measured. Results revealed a significant decline in FS (p = .02; partial eta squared [η2p] = 0.27) and a progressive increase in FAS (p = .001; η2p = 0.86), RPE (p = .001; η2p = 0.88), and HR (p = .001; η2p = 0.94), but no protocol X time interaction. Affective valence reached a nadir at values equal to -0.36 ± 3.41 (Cohen's d = -0.49), -0.43 ± 3.75 (Cohen's d = -0.44), and - 0.93 ± 3.49 (Cohen's d = -0.56) in response to P10:30, P15:45, and P30:90, respectively. There were no differences between protocols for enjoyment, intention, or self-efficacy. A negative relationship exhibited between FS and RPE was moderated by participants' tolerance of exercise intensity (β = 1.84, p < .05). Further, the association between FS and future intention was mediated by self-efficacy. Overall, upper-body SIE protocols exhibit similar perceptual responses when volume and work to rest ratio (1:3) are matched. Tolerance of exercise intensity may be used to predict changes in FS during SIE.

Marin DP ，Astorino TA ，Martinatto F ，Ragazzini FT ，Bispo RE ，Foschini D ，Otton R ... -  《-》

Effects of three low-volume, high-intensity exercise conditions on affective valence.

Haines M ，Broom D ，Gillibrand W ，Stephenson J ... -  《-》

Similar perceptual responses to reduced exertion high intensity interval training (REHIT) in adults differing in cardiorespiratory fitness.

Reduced exertion high intensity interval training (REHIT) is an extremely low-volume approach of sprint interval exercise (SIE) that increases maximal oxygen uptake (VO2max) and reduces body fat. However, there are concerns regarding implementation of SIE including REHIT in untrained populations due to generation of supramaximal power outputs and potential feelings of displeasure. This study examined perceptual responses to a single REHIT session in adults with above (n = 43, VO2max = 41 ± 6 mL/kg/min) and below average VO2max (n = 42, VO2max = 33 ± 5 mL/kg/min). Initially, incremental exercise was completed to determine VO2max. Subsequently, participants completed REHIT consisting of two 20 s "all-out" sprints at resistance equal to 5 % body mass. Rating of perceived exertion (RPE), affective valence, and physical activity enjoyment (PACES) were determined. Tolerance and preference to exercise intensity were also measured to examine if they moderated the responses. Compared to participants with below average VO2max, those with above average VO2max revealed similar change in affective valence (p = 0.86), RPE (p = 0.41), and enjoyment (p = 0.64) despite attaining significantly higher peak and mean power output in response to REHIT. The lowest value of affective valence ranged from 1.0-1.5, representing "fairly good." Overall, one session of REHIT elicits positive affective valence and similar pleasure:displeasure and enjoyment responses in individuals having diverse cardiorespiratory fitness, although we recommend that REHIT should be individualized for each client as greater frequency of aversive responses was shown in our participants with low fitness.

Astorino TA ，Clausen R ，Marroquin J ，Arthur B ，Stiles K ... -  《-》

Self-reported tolerance of the intensity of exercise influences affective responses to and intentions to engage with high-intensity interval exercise.

Bradley C ，Niven A ，Phillips SM 《-》

Psychological and Behavioral Responses to Interval and Continuous Exercise.

Stork MJ ，Gibala MJ ，Martin Ginis KA 《-》