Effects of Sprint Interval Training at Different Altitudes on Cycling Performance at Sea-Level.
Wingate test
cycling
hypoxia
lactate threshold
repeated sprint training
time trial
Journal
Sports (Basel, Switzerland)
ISSN: 2075-4663
Titre abrégé: Sports (Basel)
Pays: Switzerland
ID NLM: 101722684
Informations de publication
Date de publication:
18 Nov 2020
18 Nov 2020
Historique:
received:
15
10
2020
revised:
09
11
2020
accepted:
17
11
2020
entrez:
21
11
2020
pubmed:
22
11
2020
medline:
22
11
2020
Statut:
epublish
Résumé
Benefits of sprint interval training performed in hypoxia (SIH) compared to normoxia (SIN) have been assessed by studies mostly conducted around 3000 m of simulated altitude. The present study aims to determine whether SIH at an altitude as high as 4000 m can elicit greater adaptations than the same training at 2000 m, 3000 m or sea-level. Thirty well-trained endurance male athletes (18-35 years old) participated in a six-week repeated sprint interval training program (30 s all-out sprint, 4 min 30 s recovery; 4-9 repetitions, 2 sessions/week) at sea-level (SL, After training, peak power output (PPO) during the incremental exercise test increased (~6%) without differences between groups. The lactate threshold assessed by Dmax increased at 2000 m (+14 ± 12 W) and 4000 m (+12 ± 11 W) but did not change at SL and 3000 m. Mean power during the Wingate test increased at SL, 2000 m and 4000 m, although peak power increased only at 4000 m (+38 ± 38 W). The present study indicates that SIH using 30 s sprints is as efficient as SIN for improving aerobic and anaerobic qualities. Additional benefits such as lactate-related adaptations were found only in SIH and Wingate peak power only increased at 4000 m. This finding is of particular interest for disciplines requiring high power output, such as in very explosive sports.
Sections du résumé
BACKGROUND
BACKGROUND
Benefits of sprint interval training performed in hypoxia (SIH) compared to normoxia (SIN) have been assessed by studies mostly conducted around 3000 m of simulated altitude. The present study aims to determine whether SIH at an altitude as high as 4000 m can elicit greater adaptations than the same training at 2000 m, 3000 m or sea-level.
METHODS
METHODS
Thirty well-trained endurance male athletes (18-35 years old) participated in a six-week repeated sprint interval training program (30 s all-out sprint, 4 min 30 s recovery; 4-9 repetitions, 2 sessions/week) at sea-level (SL,
RESULTS
RESULTS
After training, peak power output (PPO) during the incremental exercise test increased (~6%) without differences between groups. The lactate threshold assessed by Dmax increased at 2000 m (+14 ± 12 W) and 4000 m (+12 ± 11 W) but did not change at SL and 3000 m. Mean power during the Wingate test increased at SL, 2000 m and 4000 m, although peak power increased only at 4000 m (+38 ± 38 W).
CONCLUSIONS
CONCLUSIONS
The present study indicates that SIH using 30 s sprints is as efficient as SIN for improving aerobic and anaerobic qualities. Additional benefits such as lactate-related adaptations were found only in SIH and Wingate peak power only increased at 4000 m. This finding is of particular interest for disciplines requiring high power output, such as in very explosive sports.
Identifiants
pubmed: 33217937
pii: sports8110148
doi: 10.3390/sports8110148
pmc: PMC7698804
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Fédération Wallonie Bruxelles
ID : n/a
Organisme : Centre d'Aide à la Performance Sportive
ID : n/a
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