AUTHOR=Bellissimo Gabriella F. , Ducharme Jeremy , Mang Zachary , Millender Desmond , Smith Jessica , Stork Matthew J. , Little Johnathan P. , Deyhle Michael R. , Gibson Ann L. , de Castro Magalhaes Flavio , Amorim Fabiano 

TITLE=The Acute Physiological and Perceptual Responses Between Bodyweight and Treadmill Running High-Intensity Interval Exercises

JOURNAL=Frontiers in Physiology

VOLUME=13

YEAR=2022

URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2022.824154

DOI=10.3389/fphys.2022.824154

ISSN=1664-042X

ABSTRACT=<sec><title>Objective</title><p>The purpose of this study was to compare the acute physiological, perceptual, and enjoyment responses between bodyweight high-intensity interval exercise (BW-HIIE) and treadmill running high-intensity interval exercise HIIE (RUN-HIIE).</p></sec><sec><title>Methods</title><p>Twelve adults [age: 29.5 ± 5.3 years; weight: 70.9 ± 15.0 kg; height: 167.9 ± 8.9 cm; peak oxygen consumption (VO<sub>2</sub> peak): 48.7 ± 6.5 ml min<sup>−1</sup>·kg<sup>−1</sup>] performed both RUN-HIIE and BW-HIIE. RUN-HIIE consisted of two sets of 5, 60-s (s) run intervals at 100% of the speed achieved during VO<sub>2</sub> peak testing followed by 60s of walking at 4.02 km/h. BW-HIIE consisted of two sets of 5, 60s ‘all-out’ effort calisthenic exercises followed by 60s of marching in place at 100 steps per minute. Oxygen consumption (VO<sub>2</sub>), blood lactate (B<sub>lac</sub>), heart rate (HR), and rating of perceived exertion (RPE) were measured during exercise. Physical activity enjoyment (PACES) was assessed post-exercise. Creatine Kinase (CK) was measured before exercise and 48-h post-exercise. Muscle soreness was assessed before exercise, post-exercise, and 48-h post-exercise.</p></sec><sec><title>Results</title><p>Oxygen consumption relative to VO<sub>2</sub> peak was higher (<italic>p</italic> &lt; 0.001) during RUN-HIIE (88 ± 3%) compared to BW-HIIE (77 ± 4%). HR relative to HRpeak was higher (<italic>p</italic> = 0.002) for RUN-HIIE (93 ± 1%) compared to BW-HIIE (88 ± 2%). B<sub>lac</sub> was higher (<italic>p</italic> &lt; 0.001) after BW-HIIE (11.2 ± 3.2 mmol/l) compared to RUN-HIIE (6.9 ± 2.0 mmol/l). Average RPE achieved was higher (<italic>p</italic> = 0.003) during BW-HIIE (16 ± 2) than RUN-HIIE (14 ± 2). PACES was similar for RUN-HIIE and BW-HIIE (<italic>p</italic> &gt; 0.05). No differences (<italic>p</italic> &gt; 0.05) in CK were observed between RUN-HIIE and BW-HIIE.</p></sec><sec><title>Conclusion</title><p>Our results indicate ‘all-out’ calisthenic exercise can elicit vigorous cardiorespiratory, B<sub>lac</sub>, and RPE responses. Implementing this style of exercise into training requires minimal space, no equipment, and may elicit cardiometabolic adaptations seen with traditional forms of high-intensity exercise.</p></sec>