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Detraining effect on overweight/obese women after high‐intensity interval training in hypoxia

2019; Wiley; Volume: 29; Issue: 4 Linguagem: Inglês

10.1111/sms.13380

1600-0838

Alba Camacho-Cardeñosa, Marta Camacho-Cardeñosa, Guillermo Olcina, Rafael Timón, Javier Brazo‐Sayavera,

Cardiovascular and Diving-Related Complications

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; FiO 2 = 17.2%; n = 13), (b) aerobic interval training in normoxia (AitN; n = 15), (c) sprint interval training in hypoxia (SitH; FiO 2 = 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.