Short‐term sprint interval versus traditional endurance training: similar initial adaptations in human skeletal muscle and exercise performance
Martin J. Gibala,Jonathan P. Little,Martin Van Essen,Geoffrey Wilkin,Kirsten A. Burgomaster,Adeel Safdar,Sandeep Raha,Mark A. Tarnopolsky +7 more
TLDR
Data demonstrate that SIT is a time‐efficient strategy to induce rapid adaptations in skeletal muscle and exercise performance that are comparable to ET in young active men.Abstract:
Brief, intense exercise training may induce metabolic and performance adaptations comparable to traditional endurance training. However, no study has directly compared these diverse training strategies in a standardized manner. We therefore examined changes in exercise capacity and molecular and cellular adaptations in skeletal muscle after low volume sprint-interval training (SIT) and high volume endurance training (ET). Sixteen active men (21 +/- 1 years, ) were assigned to a SIT or ET group (n = 8 each) and performed six training sessions over 14 days. Each session consisted of either four to six repeats of 30 s 'all out' cycling at approximately 250% with 4 min recovery (SIT) or 90-120 min continuous cycling at approximately 65% (ET). Training time commitment over 2 weeks was approximately 2.5 h for SIT and approximately 10.5 h for ET, and total training volume was approximately 90% lower for SIT versus ET ( approximately 630 versus approximately 6500 kJ). Training decreased the time required to complete 50 and 750 kJ cycling time trials, with no difference between groups (main effects, P </= 0.05). Biopsy samples obtained before and after training revealed similar increases in muscle oxidative capacity, as reflected by the maximal activity of cytochrome c oxidase (COX) and COX subunits II and IV protein content (main effects, P </= 0.05), but COX II and IV mRNAs were unchanged. Training-induced increases in muscle buffering capacity and glycogen content were also similar between groups (main effects, P </= 0.05). Given the large difference in training volume, these data demonstrate that SIT is a time-efficient strategy to induce rapid adaptations in skeletal muscle and exercise performance that are comparable to ET in young active men.read more
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Order effects of high-intensity intermittent and strength exercise on lipoprotein profile
Tiego A. Diniz,Tiego A. Diniz,Daniela Sayuri Inoue,Fabrício Rossi,Valéria Leme Gonçalves Panissa,Paula Alves Monteiro,Fábio Santos Lira +6 more
TL;DR: It is concluded that there are no differences between the order of acute high-intensity intermittent run plus strength exercises regarding modulation of the lipoprotein profile in healthy, physically active men.
Journal ArticleDOI
The Inclusion of Sprints in Low-Intensity Sessions During the Transition Period of Elite Cyclists Improves Endurance Performance 6 Weeks Into the Subsequent Preparatory Period.
Madison Taylor,Nicki Winfield Almquist,Bent R. Rønnestad,Arnt Erik Tjønna,Morten Kristoffersen,Matt Spencer,Øyvind Sandbakk,Knut Skovereng +7 more
TL;DR: In this article, the authors investigated the effects of including repeated sprints in a weekly low-intensity (LIT) session during a 3-week transition period on cycling performance 6 weeks into the subsequent preparatory period (PREP) in elite cyclists.
Journal ArticleDOI
Effect of practical hyperoxic high-intensity interval training on exercise performance
TL;DR: It is demonstrated that a practical hyperoxic HHIIT might be effective for improving aerobic capacity and anaerobic performance.
Dissertation
Effect of Concurrent Sprint Interval and Resistance Training on Measures of Strength, Power, and Aerobic Performance
TL;DR: This paper presents a meta-analysis of the literature on adaptation to supersramaximal exercise and its applications in the context of sports medicine and sport.
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