Çabuk, Refik, Kayacan, Yildrim, Murias, Juan Manuel and Karsten, Bettina ORCID: https://orcid.org/0000-0001-7336-9472 (2025) Physiologic and mechanical responses to clustered vs. traditional sprint interval exercise approaches. European Journal of Applied Physiology. ISSN 1439-6319 (Print), 1439-6327 (Online) (In Press) (doi:10.1007/s00421-025-05857-4)

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Abstract

Purpose This study compared responses to a traditional 30-s all-out sprint interval exercise (SIE) session, compared to two SIE sessions divided into clusters, with the aim to assess which of these sessions would result in higher peak oxygen uptake ( ̇VO2peak), longer time at ̇ VO2 ≥ respiratory compensation point (RCP), and greater peak power output during SIE. Methods Twelve trained males (19 ± 1 years; 176 ± 5 cm; 65.9 ± 6 kg; ̇ VO2max: 54.0 ± 6.2 mL kg−1 min−1) performed three work-matched all-out cycling SIE sessions with a load of 7.5% body mass: (1) SIE30: 4 repetitions of 30-s work with 240-s recovery; (2) SIE15: 4 repetitions of 15-s work with 15-s recovery, plus 15-s work with 225-s recovery; (3) SIE10: 4 repetitions of 10-s work with 10-s recovery, plus 10-s work and 10-s recovery, plus 10-s work with 220-s recovery. Results for SIE30 (697 ± 71 W) was lower than for SIE15 (732 ± 63 W; p = 0.001) and SIE10 (752 ± 75 W; p = 0.001).̇ VO2peak response for SIE30 (46.5 ±6.6 mL kg−1 min−1) was lower than for SIE15 (51.9 ± 4.8 mL kg−1 min−1; p = 0.04) and SIE10 (50.9 ± 5.6 mL kg−1 min−1; p = 0.01). Time spent at ̇ VO2 ≥ RCP was shorter for SIE30 (32.9 ± 35.9 s) compared toSIE15 (95.0 ± 52.0 s; p = 0.001) and SIE10 (62.9 ± 46.1 s; p = 0.010). No differences were identified for these variables between SIE15 and SIE10 (p = 0.270). Conclusion Compared to the SIE30 session, the clustering-based SIE protocols resulted in higher values, a greater ̇VO2peak response, and longer time spent at ̇ VO2 ≥ RCP. Thus, clustering methods can maximize the above-mentioned responses and be appealing alternatives to the traditional 30-s SIE session.

Item Type:	Article
Uncontrolled Keywords:	aerobic training, aerobic capacity, maximal oxygen consumption, peak power output, repeated sprint exercise
Subjects:	B Philosophy. Psychology. Religion > BF Psychology Q Science > QP Physiology R Medicine > RC Internal medicine > RC1200 Sports Medicine
Faculty / School / Research Centre / Research Group:	Faculty of Education, Health & Human Sciences Faculty of Education, Health & Human Sciences > Institute for Lifecourse Development Faculty of Education, Health & Human Sciences > Institute for Lifecourse Development > Centre for Exercise Activity and Rehabilitation Faculty of Education, Health & Human Sciences > School of Human Sciences (HUM)
Last Modified:	24 Jun 2025 10:52
URI:	https://gala.gre.ac.uk/id/eprint/50718

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