Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Puerto Real, 11003 Cádiz, Spain.
Galeno Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, 11003 Cádiz, Spain.
Int J Environ Res Public Health. 2021 Jan 18;18(2):777. doi: 10.3390/ijerph18020777.
This study compared the response of a 9-week cycling training on ventilatory efficiency under two conditions: (i) Combined with respiratory muscle training (RMT) using a new nasal restriction device (FeelBreathe) (FB group) and (ii) without RMT (Control group). Eighteen healthy elite cyclists were randomly separated into the FB group ( = 10) or Control group ( = 8). Gas exchange was measured breath by breath to measure ventilatory efficiency during an incremental test on a cycloergometer before (Pre) and after (Post) the nine weeks of training. The FB group showed higher peak power (Δ (95%HDI) (0.82 W/kg (0.49, 1.17)), VOmax (5.27 mL/kg/min (0.69, 10.83)) and VT (29.3 W (1.8, 56.7)) compared to Control at Post. The FB group showed lower values from Pre to Post in minute ventilation (VE) (-21.0 L/min (-29.7, -11.5)), Breathing frequency (BF) (-5.1 breaths/min (-9.4, -0.9)), carbon dioxide output (VCO) (-0.5 L/min (-0.7, -0.2)), respiratory equivalents for oxygen (EqO) (-0.8 L/min (-2.4, 0.8)), heart rate (HR) (-5.9 beats/min (-9.2, -2.5)),, respiratory exchange ratio (RER) (-0.1 (-0.1, -0.0) and a higher value in inspiratory time (Tin) (0.05 s (0.00, 0.10)), expiratory time (Tex) (0.11 s (0.05, 0.17)) and end-tidal partial pressure of CO () (0.3 mmHg (0.1, 0.6)). In conclusion, RMT using FB seems to be a new and easy alternative ergogenic tool which can be used at the same time as day-to-day training for performance enhancement.
这项研究比较了在两种情况下进行 9 周骑行训练对呼吸效率的影响：（i）使用新型鼻腔限制装置（FeelBreathe）进行呼吸肌训练（RMT）（FB 组）和（ii）不进行 RMT（对照组）。18 名健康的精英自行车运动员被随机分为 FB 组（n=10）或对照组（n=8）。在递增式脚踏车上进行递增测试时，通过呼吸测量每口气来测量气体交换，以测量训练前（Pre）和训练后（Post）的呼吸效率。与对照组相比，FB 组在训练后显示出更高的峰值功率（Δ（95%HDI）（0.82 W/kg（0.49，1.17）），最大摄氧量（VOmax）（5.27 mL/kg/min（0.69，10.83））和 VT（29.3 W（1.8，56.7））。与 Pre 相比，FB 组在训练后显示出更低的分钟通气量（VE）（-21.0 L/min（-29.7，-11.5）），呼吸频率（BF）（-5.1 次/分钟（-9.4，-0.9）），二氧化碳输出（VCO）（-0.5 L/min（-0.7，-0.2）），氧气呼吸当量（EqO）（-0.8 L/min（-2.4，0.8）），心率（HR）（-5.9 次/分钟（-9.2，-2.5）），呼吸交换比（RER）（-0.1（-0.1，-0.0））和吸气时间（Tin）（0.05 s（0.00，0.10））更高，呼气时间（Tex）（0.11 s（0.05，0.17））和终末潮气二氧化碳分压（PetCO）（0.3 mmHg（0.1，0.6））更高。总之，使用 FB 的 RMT 似乎是一种新的、简单的、能够与日常训练同时使用的、增强运动表现的、有潜力的工具。
