Women’s Respiratory Movements during Spontaneous Breathing and Physical Fitness: A Cross-Sectional, Correlational Study
2022
Wen-Ming Liang | Zhen-Min Bai | Maiwulamu Aihemaiti | Lei Yuan | Zhi-Min Hong | Jing Xiao | Fei-Fei Ren | Osvaldas Rukšėnas
Background: Abdominal/diaphragmatic breathing exercises are popular worldwide and have been proven to be beneficial for physical performance. Is abdominal motion (AM) during spontaneous breathing correlated with physical fitness? The present study aimed to answer this question. Methods: 434 women (aged 20&ndash:59) were enrolled and participated in respiration tests using two respiration belts (one was tied at the height of the xiphoid and another at the navel) to detect AM and thoracic motion (TM). They also performed physical fitness tests to measure body size, muscular strength, muscular power, muscular endurance, balance, flexibility, reaction time, and cardiorespiratory endurance. Results: All the correlation coefficients between respiratory movements (AM, TM, AM + TM, AM/(AM + TM)) and physical fitness outcomes were less than 0.4/&minus:0.4. Only AM and muscular power (countermovement jump height) had a weak correlation, with a correlation coefficient close to 0.4 in the 20&minus:29-year age group (rs = 0.398, p = 0.011, n = 40). Conclusions: Women&rsquo:s respiratory movements during spontaneous breathing were not correlated with physical fitness. Future studies may focus on the relationship between AM and countermovement jump height in young women with a larger sample size and using ultrasound to directly test the excursion of the diaphragm.
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