Decreasing sprint duration from 20 to 10 s during reduced-exertion high-intensity interval training (REHIT) attenuates the increase in maximal aerobic capacity but has no effect on affective and perceptual responses
Küçük Resim Yok
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Canadian Science Publishing, Nrc Research Press
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Recent studies have demonstrated that modifying the "classic" 6 x 30-s "all-out" sprint interval training protocol by incorporating either shorter sprints (6 x 10-s or 15-s sprints) or fewer sprints (e.g., 2 x 20-s sprints; reduced-exertion high-intensity interval training (REHIT)) does not attenuate the training-induced improvements in maximal aerobic capacity. The aim of the present study was to determine if reducing the sprint duration in the REHIT protocol from 20 s to 10 s per sprint influences acute affective responses and the change in maximal aerobic capacity following training. Thirty-six sedentary or recreationally active participants (17 women; mean +/- SD; age: 22 +/- 3 years; body mass index: 24.5 +/- 4.6 kg.m(-2); maximal aerobic capacity: 37 +/- 8 mL.kg(-1).min(-1)) were randomised to a group performing a "standard" REHIT protocol involving 2 x 20-s sprints or a group who performed 2 x 10-s sprints. Maximal aerobic capacity was determined before and after 6 weeks of 3 weekly training sessions. Acute affective responses and perceived exertion were assessed during training. Greater increases in maximal aerobic capacity were observed for the group performing 20-s sprints (2.77 +/- 0.75 to 3.04 +/- 0.75 L.min(-1); + 10%) compared with the group performing 10-s sprints (2.58 +/- 0.57 vs. 2.67 +/- 3.04 L.min(-1); + 4%; group x time interaction effect: p < 0.05; d = 1.06). Positive affect and the mood state vigour increased postexercise, while tension, depression, and total mood disturbance decreased, and negative affect remained unchanged. Affective responses and perceived exertion were not altered by training and were not different between groups. In conclusion, reducing sprint duration in the REHIT protocol from 20 s to 10 s attenuates improvements in maximal aerobic capacity, and does not result in more positive affective responses or lower perceived exertion.
Açıklama
Anahtar Kelimeler
(V) over dotO(2max), sprint interval training, SIT, Wingate sprint, affect
Kaynak
Applied Physiology Nutrition and Metabolism
WoS Q Değeri
Q1
Scopus Q Değeri
Q2
Cilt
43
Sayı
4
