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Effects of sprint interval training on VO 2max and aerobic exercise performance: A systematic review and meta‐analysis
Author(s) -
Sloth M.,
Sloth D.,
Overgaard K.,
Dalgas U.
Publication year - 2013
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/sms.12092
Subject(s) - sprint , meta analysis , aerobic exercise , interval training , medicine , physical therapy , vo2 max , confidence interval , time trial , high intensity interval training , exercise physiology , physical medicine and rehabilitation , heart rate , blood pressure
Recently, several studies have examined whether low‐volume sprint interval training ( SIT ) may improve aerobic and metabolic function. The objective of this study was to systematically review the existing literature regarding the aerobic and metabolic effects of SIT in healthy sedentary or recreationally active adults. A systematic literature search was performed ( B ibliotek.dk, SPORTD iscus, E mbase, PED ro, S veMed+, and P ubmed). Meta‐analytical procedures were applied evaluating effects on maximal oxygen consumption ( VO 2max ). Nineteen unique studies [four randomized controlled trials ( RCT s), nine matched‐controlled trials and six noncontrolled studies] were identified, evaluating SIT interventions lasting 2–8 weeks. Strong evidence support improvements of aerobic exercise performance and VO 2max following SIT . A meta‐analysis across 13 studies evaluating effects of SIT on VO 2max showed a weighted mean effects size of g = 0.63 95% CI (0.39; 0.87) and VO 2max increases of 4.2–13.4%. Solid evidence support peripheral adaptations known to increase the oxidative potential of the muscle following SIT , whereas evidence regarding central adaptations was limited and equivocal. Some evidence indicated changes in substrate oxidation at rest and during exercise as well as improved glycemic control and insulin sensitivity following SIT . In conclusion, strong evidence support improvement of aerobic exercise performance and VO 2max following SIT , which coincides with peripheral muscular adaptations. Future RCT s on long‐term SIT and underlying mechanisms are warranted.