Rehabilitation Section Medical Department Rehastage Co., Ltd, Naniwa-ku, Osaka-shi, Osaka, Japan.
Graduate School of Health Science, Kio University, Kitakatsuragi-gun, Nara, Japan.
Physiother Theory Pract. 2022 Nov;38(13):3100-3107. doi: 10.1080/09593985.2021.1989731. Epub 2021 Oct 16.
Kyphosis may reduce the force of coughing by affecting the factors related to cough peak flow (CPF). This study sought to compare cough strength and respiratory function between non-kyphotic and kyphotic elderly individuals and clarify the relationship between these factors.
The non-kyphotic group comprised 17 elderly individuals with a kyphosis index of less than 15.1, while the kyphotic group comprised 21 elderly individuals with a kyphosis index of 15.1 or higher. Cough strength, respiratory function, respiratory muscle strength, and maximum phonation time were measured, and comparison between two groups and correlation analysis between variables were performed.
CPF, vital capacity, maximum expiratory pressure (PEmax), maximum inspiratory pressure (PImax), and chest expansion at the xiphoid process were significantly lower in the kyphotic group than in the non-kyphotic group. There were significant negative correlations between kyphosis index and CPF (r = -0.37, < 0.05), PEmax (r = -0.45, < 0.01), PImax (r = -0.44, < 0.01) and chest expansion at the xiphoid process (r = -0.38, < 0.05).
Our results demonstrated that cough strength was significantly lower in the kyphotic compared to non-kyphotic individuals. Furthermore, cough strength decreased with increased severity of kyphosis.
脊柱后凸可能会通过影响与咳嗽峰值流量（CPF）相关的因素而降低咳嗽力度。本研究旨在比较非脊柱后凸和脊柱后凸老年人的咳嗽力度和呼吸功能，并阐明这些因素之间的关系。
非脊柱后凸组包括 17 名脊柱后凸指数小于 15.1 的老年人，脊柱后凸组包括 21 名脊柱后凸指数为 15.1 或更高的老年人。测量咳嗽力度、呼吸功能、呼吸肌力量和最长发声时间，并对两组进行比较，对变量进行相关性分析。
与非脊柱后凸组相比，脊柱后凸组的 CPF、肺活量、最大呼气压力（PEmax）、最大吸气压力（PImax）和剑突处胸廓扩张明显较低。脊柱后凸指数与 CPF（r=-0.37， <0.05）、PEmax（r=-0.45， <0.01）、PImax（r=-0.44， <0.01）和剑突处胸廓扩张（r=-0.38， <0.05）呈显著负相关。
我们的结果表明，与非脊柱后凸者相比，脊柱后凸者的咳嗽力度明显较低。此外，咳嗽力度随脊柱后凸严重程度的增加而降低。
