Bahenský Petr, Bunc Václav, Marko David, Malátová Renata
Department of Sports Science, Faculty of Education, University of South Bohemia, České Budějovice, Czech Republic -
Sports Motor Skills Laboratory, Faculty of Sports, Physical Training and Education, Charles University, Prague, Czech Republic.
J Sports Med Phys Fitness. 2020 Aug;60(8):1101-1109. doi: 10.23736/S0022-4707.20.10793-X.
Minimizing the energy required for breathing muscles is based on the adaptation of the respiratory muscles which is reflected in the reduction of breathing frequency (BF) and tidal volume (V
Study recruit 36 runners of both sexes with a mean age 16.8±1.6 years. A random distribution was performed. The intervention program consisted of a set of BE aimed at the activation of the diaphragm. We monitored the dynamics of ventilation parameters at intensities 2, 3, 4 W/kg during a stepped test on a bicycle ergometer.
The BE was focused on the activation of the diaphragm for a 12.2±3.6 minutes per day, sixteen weeks. After eight weeks, there were significant changes in V
It was confirmed that the two-month BE intervention focused on the activation of the diaphragm is sufficient and resulted in a significant change in the values of dynamic ventilation parameters. After four months of intervention, the changes are significantly greater compared with values found after a two-month intervention period.
使呼吸肌所需能量最小化基于呼吸肌的适应性，这表现为呼吸频率（BF）降低和潮气量（VT）增加。这可能会受到有针对性的呼吸锻炼（BE）的影响，并且呼吸质量可能与耐力表现相关。本研究的目的是评估不同负荷强度下的动态通气参数及其因系统性呼吸锻炼（BE）而发生的变化。
该研究招募了36名平均年龄为16.8±1.6岁的男女跑步者。进行了随机分组。干预方案包括一组旨在激活膈肌的呼吸锻炼。我们在自行车测力计上进行的阶梯测试中，监测了强度为2、3、4W/kg时通气参数的动态变化。
呼吸锻炼每天专注于激活膈肌12.2±3.6分钟，持续16周。八周后，VT和BF有显著变化（P<0.05）。十六周后，VT根据负荷水平显著增加5.7 - 18.3%（P<0.01），BF值显著降低5.4 - 14.4%（P<0.01）。VE和VO2值没有变化。对照组没有显著变化。
证实了为期两个月的专注于激活膈肌的呼吸锻炼干预是足够的，并导致动态通气参数值发生显著变化。干预四个月后，与两个月干预期后的数值相比，变化显著更大。
