Acute Perceptual Responses To Individual And Group-based High-intensity Interval Exercise In Girls

• DOI: 10.1249/01.mss.0000675200.30045.9e
• Publication Date: 2020-07-09T05:08:08Z
• Authors: Jeanette M. Ricci; Todd A. Astorino; Katharine D. Currie; Karin A. Pfeiffer
• Keywords: Perceived exertion; Aerobic Exercise; Treadmill; Exercise intensity

Vigorous-intensity physical activity (PA), such as high-intensity interval exercise (HIIE), elicits greater health benefits than moderate-intensity PA. However, predictors of PA adherence affect and enjoyment are rarely assessed during HIIE in children. PURPOSE: To compare girls’ acute perceptual responses to different types HIIE, treadmill-based (TM) body-weight resistance circuit (CIRC), CIRC performed a small group setting. METHODS: Fifteen active girls (age = 9.2 ± 1.1 years) completed graded test determine maximal aerobic speed (MAS). TM were on separate days (randomized counterbalanced), then was (group CIRC). required eight 30s sprints at 100% MAS with recovery 40% MAS; whereas, consisted 2 sets 4 exercises ‘all out’ for recovery. Perceived exertion (RPE 0-10), affective valence (Feeling Scale, -5 +5), (facial scale, 1-4) recorded pre-exercise, 38%, 75% protocol completion, post-exercise. Participants also surveys encompassing (PACES, 16-80) positive negative (10-item PANAS) prior the 15 minutes RESULTS: RPE increased significantly (P<0.001), yet there no time by interaction (P=0.12). Affective unchanged (P>0.05) similar between protocols (P>0.05). Mean post-exercise equal 3 1 respectively, (PACES) baseline 69 10 did not change post-exercise, or CONCLUSION: Despite an exercise-induced increase RPE, all protocols, suggesting that elicit unfavorable individual small-group settings. A possible explanation our findings is use relatively brief work intervals lower volume compared previous studies.