Influence of HIIRT With Fixed and Self-Selected Recovery Intervals on Physiological, Affective, and Enjoyment Responses

Fidalgo, Andressa; Joi, Sâmela; Lattari, Eduardo; Oliveira, Bruno Ribeiro Ramalho; Pilon, Rui; Farinatti, Paulo; Monteiro, Walace David

doi:10.1080/02701367.2022.2042463

Cited by 5 publications

(5 citation statements)

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“…The present study adds to current knowledge by demonstrating that people after stroke can perform bouts of MCT, at an intensity and duration consistent with that which promotes the development of cardiorespiratory fitness. Notably, the mean exercise intensity achieved in the present study was also similar to the mean intensity of 54.1% VO2peak and 87.6% HRmax observed in young, trained males that performed all-out circuit training [30]. Another novel finding from the present study is that people after stroke can sustain exercise at the gas exchange threshold intensity for ~40 min when performed as short intervals of alternate resistance exercises and walking.…”

Section: Discussionsupporting

confidence: 83%

Can mixed circuit training elicit the recommended exercise intensity and energy expenditure in people after stroke?

Michalski

Fonseca

Midgley

et al. 2023

Topics in Stroke Rehabilitation

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Purpose: To investigate whether mixed circuit training (MCT) elicits the recommended exercise intensity and energy expenditure in people after stroke, and to establish the between-day reproducibility for the percentages of heart rate reserve (%HRR), oxygen uptake reserve (%VO2R), and energy expenditure elicited during two bouts of MCT.Methods: Seven people aged 58 (12) yr, who previously had a stroke, performed a cardiopulmonary exercise test, a non-exercise control session, and two bouts of MCT. The MCT included 3 circuits of 10 resistance exercises at 15-repetition maximum intensity, with each set of resistance exercise interspersed with 45-s of walking. Expired gases were collected during the MCT and control session and for 40 min afterwards. Control session was necessary to calculate the net energy expenditure associated with each bout of MCT.Results: Mean %VO2R (1 st MCT: 51.1%, P=0.037; 2 nd MCT: 54.0%, P=0.009) and %HRR (1 st MCT: 66.4%, P=0.007; 2 nd MCT: 67.9%, P=0.010) exceeded the recommended minimum intensity of 40%. Both %VO2R (P=0.586 and 0.987, respectively) and %HRR (P=0.681 and 0.237, respectively) during the 1 st and 2 nd bouts of MCT were not significantly different to their corresponding gas exchange threshold values derived from cardiopulmonary exercise testing. Mean net total energy expenditure significantly exceeded the minimum recommend energy expenditure in the 1 st (P=0.048) and 2 nd (P=0.023) bouts of MCT. Between-day reproducibility for %HRR, %VO2R, and energy expenditure was excellent (ICC: 0.92-0.97).Conclusions: MCT elicited physiological strain recommended for improving health-related fitness in people after stroke and these responses demonstrated excellent between-day reproducibility.

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Section: Discussionsupporting

confidence: 83%

Can mixed circuit training elicit the recommended exercise intensity and energy expenditure in people after stroke?

Michalski

Fonseca

Midgley

et al. 2023

Topics in Stroke Rehabilitation

Self Cite

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“…Over time, practicing such flexibility may place a greater focus on planning, exploring, and developing personalized rest allocation strategies. Finally, providing persons with choices is also known to have positive psychological effects [ 10 – 12 ].…”

Section: Discussionmentioning

confidence: 99%

“…Some may prefer to rest for shorter durations between the first few intervals and finalize the session with longer rest durations; others may prefer the opposite. Accounting for one’s preferences via choice provision can lead to positive psychological effects [ 10 – 12 ] and, at times, better performance outcomes [ 13 , 14 ] (although see examples of null effects [ 15 , 16 ]). Finally, fixed rest duration does little to challenge athletes’ decision-making processes.…”

Section: Introductionmentioning

confidence: 99%

“…First, athletes choose the rest duration based on their current and anticipated performance, which can better account for individual differences. Second, the act of choosing can enhance motivation [ 11 ], enjoyment [ 12 ], and at times, motor performance [ 13 , 14 ]. Third, the SS approach can challenge and improve athletes’ decision-making processes in competitions, by having them practice when and how to use their rest periods in training.…”

Section: Introductionmentioning

confidence: 99%

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Should I Rest or Should I Go Now? A Randomized Cross-Over Trial Comparing Fixed and Self-Selected Rest Durations in High-Intensity Interval Training Cycling Sessions

et al. 2023

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Background In high-intensity interval training (HIIT), the rest durations between intervals are commonly prescribed using a fixed approach (e.g., 30 s between intervals). An alternative is the self-selected (SS) approach, in which trainees select their resting durations. Studies comparing the two approaches report mixed results. However, in these studies, trainees in the SS condition rested for as little or as long as they wished, leading to dissimilar total rest durations between conditions. Here, for the first time, we compare the two approaches while controlling for total rest duration. Methods Twenty-four amateur adult male cyclists completed a familiarization session, followed by two counterbalanced cycling HIIT sessions. Each session was composed of nine, 30-s intervals, in which the goal was to accumulate as many watts as possible on an SRM ergometer. In the fixed condition, cyclists rested for 90 s between intervals. In the SS condition, cyclists had 720 s (i.e., 8 × 90 s) of rest to allocate in any way they wished. We measured and compared watts, heart rate, electromyography of the knee flexors and extensors, rating of perceived effort and fatigue, perception of autonomy and enjoyment. Additionally, a subsample of ten cyclists completed a retest of the SS condition. Results With the exception of perception of autonomy, which was higher in the SS condition, outcomes were highly similar in both conditions. For example, the average aggregated differences were: 0.57 (95% CI − 8.94, 10.09) for watts; − 0.85 (95% CI − 2.89, 1.18) for heart rate; and 0.01 (95% CI − 0.29, 0.30) for rating of perceived effort (on a 0–10 scale). Additionally, the retest of the SS condition resulted in a similar rest allocation pattern across the intervals and in similar outcomes. Conclusion Given the similarities in performance, physiological and psychological outcomes between the fixed and SS conditions, both can be equally utilized based on coaches’ and cyclists’ preferences and training goals.

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“…The SS approach offers several unique bene ts. First, the mere act of choosing can enhance motivation [14], enjoyment [15], and perception of autonomy [16]. Second, the SS method may better accommodate individual differences by allowing athletes to tailor rest durations to their current physiological and psychological readiness and anticipated performance [17].…”

Section: Introductionmentioning

confidence: 99%

On Your Mark, Get Set, Choose! A Randomized Cross-Over Study Comparing Fixed and Self-Selected Rest Periods in Interval Running Among Professional Female Soccer Players.

Ben-Ari,

Silverman,

Obolski

et al. 2024

Preprint

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Background Studies on rest durations during high-intensity interval training (HIIT) often compare fixed and self-selected (SS) rest allocation approaches. Frequently, the rest duration under SS conditions is unlimited, leading to inconsistent total rest durations compared to fixed rest conditions. To address this limitation, we recently compared fixed and SS rest conditions during cycling HIIT sessions, while keeping the total rest time equivalent. However, our protocol required athletes to divide a long total rest time (12 minutes) across nine intervals, which may have been overly cognitively demanding. In the current study, we simplified the athletes’ rest allocation task by reducing the number of rest periods available. Methods Following a familiarization session, 24 professional female soccer players completed two running HIIT sessions on a non-motorized treadmill. Each session consisted of twelve 15-second intervals, divided into three blocks, with the goal of maximizing the distance covered. In both conditions, the between-interval rest duration per block amounted to 270 seconds. In the fixed condition, the rest was uniformly allocated to 90 seconds between each interval, whereas in the SS condition, the athletes chose how to allocate the entirety of the 270 seconds of rest. We compared the following outcomes: distance, heart-rate, perception of fatigue, effort, autonomy, enjoyment, boredom, and athletes’ preferences. Outcomes were compared using aggregated measures via paired univariate tests, and across the intervals via mixed-effects models. Results We observed comparable results in most outcomes with the exception of higher autonomy in the SS condition (mean difference = 2.1, 95%CI (0.9, 3.3)) and a negligibly higher heart-rate when comparing the observations across intervals (estimate = 2.5, 95%CI (0.9, 4.2)). Additionally, participants chose to rest for longer durations as the block progressed. Finally, most participants (65%) favored the SS condition. Conclusion This study further solidifies that SS and fixed approaches with matched total rest durations result in similar performance, physiological, and psychological responses. This effect persists even when the total rest duration required to be allocated is relatively short. Therefore, coaches and trainees can choose either approach based on their preferences and training goals.

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Influence of HIIRT With Fixed and Self-Selected Recovery Intervals on Physiological, Affective, and Enjoyment Responses

Cited by 5 publications

References 41 publications

Can mixed circuit training elicit the recommended exercise intensity and energy expenditure in people after stroke?

Can mixed circuit training elicit the recommended exercise intensity and energy expenditure in people after stroke?

Should I Rest or Should I Go Now? A Randomized Cross-Over Trial Comparing Fixed and Self-Selected Rest Durations in High-Intensity Interval Training Cycling Sessions

On Your Mark, Get Set, Choose! A Randomized Cross-Over Study Comparing Fixed and Self-Selected Rest Periods in Interval Running Among Professional Female Soccer Players.

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