Effects of Inspiratory Muscle Training on Muscle Oxygenation during Vascular Occlusion Testing in Trained Healthy Adult Males

Rodrigo Yáñez-Sepúlveda, Humberto Verdugo-Marchese, Daniel Duclos-Bastías, Marcelo Tuesta () and Ildefonso Alvear-Ordenes
Additional contact information
Rodrigo Yáñez-Sepúlveda: Applied Physiology Laboratory (FISAP), Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain
Humberto Verdugo-Marchese: Laboratory of Sports Sciences, Centro de Medicina Deportiva Sports MD, Viña del Mar 2521156, Chile
Daniel Duclos-Bastías: School of Physical Education, Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile
Marcelo Tuesta: Laboratory of Sports Sciences, Centro de Medicina Deportiva Sports MD, Viña del Mar 2521156, Chile
Ildefonso Alvear-Ordenes: Applied Physiology Laboratory (FISAP), Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain

IJERPH, 2022, vol. 19, issue 24, 1-11

Abstract: Inspiratory muscle training (IMT) may have an additional effect on cardiovascular autonomic modulation, which could improve the metabolism and vascular function of the muscles. Aim: To determine the effects of IMT on vascular and metabolic muscle changes and their relationship to changes in physical performance. Methods: Physically active men were randomly placed into an experimental (IMTG; n = 8) or IMT placebo group (IMTPG; n = 6). For IMT, resistance load was set at 50% and 15% of the maximum dynamic inspiratory strength (S-Index), respectively. Only the IMTG’s weekly load was increased by 5%. In addition, both groups carried out the same concurrent training. Besides the S-Index, a 1.5-mile running test, spirometry, and deoxyhemoglobin (HHb AUC during occlusion) and reperfusion tissue saturation index (TSI MB and TSI MP : time from minimum to baseline and to peak, respectively) in a vascular occlusion test were measured before and after the 4-week training program. In addition, resting heart rate and blood pressure were registered. Results: IMTG improved compared to IMTPG in the S-Index (Δ = 28.23 ± 26.6 cmH 2 O), maximal inspiratory flow (MIF: Δ = 0.91 ± 0.6 L/s), maximum oxygen uptake (Δ = 4.48 ± 1.1 mL/kg/min), 1.5-mile run time (Δ = −0.81 ± 0.2 s), TSI MB (Δ = −3.38 ± 3.1 s) and TSI MP (Δ = −5.88 ± 3.7 s) with p < 0.05. ΔVO 2max correlated with S-Index (r = 0.619) and MIF (r = 0.583) with p < 0.05. Both ΔTSI MB and TSI MP correlated with ΔHHb AUC (r = 0.516 and 0.596, respectively) and with Δ1.5-mile run time (r = 0.669 and 0.686, respectively) with p < 0.05. Conclusion: IMT improves vascular function, which is related to additional improvements in physical performance.

Keywords: near-infrared spectroscopy; pulmonary function test; respiratory muscle training (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/19/24/16766/pdf (application/pdf)
https://www.mdpi.com/1660-4601/19/24/16766/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:19:y:2022:i:24:p:16766-:d:1002765

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().