Detraining effect on overweight/obese women after high‐intensity interval training in hypoxia. (3rd February 2019)

• Record Type: Journal Article
• Authors: Camacho‐Cardenosa, Alba; Camacho‐Cardenosa, Marta; Olcina, Guillermo; Timón, Rafael; Brazo‐Sayavera, Javier
• Is Part Of: Scandinavian journal of medicine & science in sports. Volume 29:Number 4(2019)
• Page Start: 535
• Page End: 543
• Publication Date: 2019-02-03
• Subjects: body fat -- exercise -- health -- normobaric hypoxia -- total cholesterol; Sports medicine -- Periodicals; Sports -- Physiological aspects -- Periodicals; Sports -- Periodicals; 617.1027
• DOI: 10.1111/sms.13380
• Languages: English
• ISSNs: 0905-7188

Abstract

Abstract : Purpose: Promising benefits on fat mass and biochemical components may be reported after applying programs of cyclic hypoxia and HIIT. Aim: To investigate the effect of a month of detraining on cardiometabolic risk markers after active hypoxia exposure. Methods: Participants included 59 overweight/obese women, who started a 12‐week program of 36 sessions, and were randomly divided into four groups: (a) aerobic interval training in hypoxia (AitH; FiO2 = 17.2%; n = 13), (b) aerobic interval training in normoxia (AitN; n = 15), (c) sprint interval training in hypoxia (SitH; FiO2 = 17.2%; n = 15), and (d) sprint interval training in normoxia (SitN; n = 18). Body composition, anthropometric, and biochemical parameters were assessed at baseline (A), after 36 training sessions (B) and after 4 weeks of detraining (C). Results: Hypoxia conditions showed a significant positive effect on waist circumference ( P = 0.01), WHR ( P = 0.04), and percentage of trunk fat mass ( P < 0.001). The percentage of trunk fat continued to decrease significantly after training cessation in both AitH and SitH groups. Conclusion: After 4 weeks of detraining with a previous 12 weeks of high‐intensity interval training under cyclic normobaric hypoxia, the percentage of fat mass located in the trunk decreases significantly and this effect was not observed in the normoxia groups.