Altitude-induced effects on muscular metabolic stress and hypertrophyrelated factors after a resistance training session
Metadatos
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Feriche Fernández-Castanys, María Belén; Schoenfeld, Brad J.; Bonitch Góngora, Juan Germán; De la Fuente, Blanca; Almeida, Filipa; Argüelles, Javier; Benavente Bardera, Cristina; Padial Puche, PaulinoEditorial
Wiley
Materia
Performance Training Strength
Fecha
2019-11-18Referencia bibliográfica
Published version: Feriche, B., Schoenfeld, B. J., Bonitch-Gongora, J., de la Fuente, B., Almeida, F., Argüelles, J., Benavente,C & Padial, P. (2020). Altitude-induced effects on muscular metabolic stress and hypertrophy-related factors after a resistance training session. European journal of sport science, 20(8), 1083-1092 https://doi.org/10.1080/17461391.2019.1691270
Patrocinador
Ministry of Science, Innovation and Universities of Spain DEP2015-64350-P; MINECO/FEDER; PGC2018-097388-B-I00 AEI/FEDER, EUResumen
This study examined the acute effects of exposure to moderate altitude on factors associated with muscular adaptations following whole-body hypertrophy-oriented resistance training (RT) sessions. Thirteen resistance-trained males completed both counterbalanced standard hypertrophic RT sessions (3 sets × 10RM, 2 min rest) at moderate-altitude (H; 2320 m asl) and under normoxic conditions (N; <700 m asl). Participants rested 72 h between training sessions. Before and after the exercise session, blood samples were obtained for determination of metabolites and ions (lactate, inorganic phosphate, liquid carbon dioxide and calcium) and hormones (testosterone and growth hormone). Session related performance and perception of effort (s-RPE) were also monitored. Results showed no meaningful differences in performance or s-RPE (8.5 ± 1.4 vs 8.6 ± 0.8 respectively for N and H; p = 0.603). All blood variables displayed statistically significant changes throughout the recovery period compared to basal levels (p < 0.05), except for the testosterone. However, no altitude effect was observed in maximal blood lactate, calcium or anabolic hormones (p > 0.05). The reduction observed in the liquid carbon dioxide concentration in H (21.11 ± 1.46 vs 16.19 ± 1.61 mmol·l−1) seems compatible with an increase in buffering capacity. Compared to N, inorganic phosphate displayed lower recovery values after the RT in H (2.89 ± 0.64 vs 2.23 ± 0.60 mg dl−1; p = 0.007). The results of this study do not support an accentuated effect of acute moderate terrestrial hypoxia on metabolic and hormonal factors linked to muscle growth during hypertrophic resistance training.