Relationship between postural control and respiratory movement during one-leg standing in healthy males

Abstract

[Purpose] The purpose of this study was to examine the relationship between postural control and respiratory movements after identifying the characteristics of respiratory movements in different postural holding tasks. [Participants and Methods] The total trajectory length was measured using a stabilometer (G-620; Anima Company, Tokyo, Japan), while respiratory movements were measured using an expiratory gas analyzer (PowerMetz; Anima Company, Tokyo, Japan) during closed-leg and one-leg standing. Respiratory movements were characterized as tidal volume (TV), respiratory rate (RR), minute volume (MV), and metabolic equivalents (METs). [Results] The total trajectory length, METs, RR, and MV were higher in one-leg standing than in closed-leg standing. The rate of change in the total trajectory length during one-leg standing was positively correlated with the rate of change in TV and negatively correlated with RR. [Conclusion] The results suggest that postural control of one-leg stance holding is associated with changes in respiratory motion.

Associations between respiratory function, balance, postural control, and fatigue in persons with multiple sclerosis: an observational study

“…The CORE plays a fundamental role in postural control and constitutes an anatomical and functional system that serves as the center for the kinetic chains involved in all bodily movements. It is influenced by changes in intraabdominal pressure orchestrated by diaphragmatic contraction, which gives the diaphragm an important role in trunk stability (17)(18)(19). During inhalation, it increases intra-abdominal pressure, thereby enhancing stability (20).…”