Sawa Ryuichi, Doi Takehiko, Misu Shogo, Saito Takashi, Sugimoto Taiki, Murata Shunsuke, Asai Tsuyoshi, Yamada Minoru, Ono Rei
Department of Physical Therapy, School of Health Sciences at Narita, International University of Health and Welfare, 4-3, Kōzunomori, Narita-city, Chiba, 286-8686, Japan.
Section for Health Promotion Department for Research and Development to Support Independent Life of Elderly, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu-city, Aichi, 474-8511, Japan.
Gait Posture. 2017 May;54:242-247. doi: 10.1016/j.gaitpost.2017.03.013. Epub 2017 Mar 8.
The association of quantitative gait characteristics, such as gait variability with musculoskeletal pain is poorly understood. We aimed to examine whether gait speed and gait variability are associated with musculoskeletal pain assessed by the severity and the number of sites in community-dwelling elderly individuals.
A total of 176 elderly individuals participated in this study. The wireless motion-recording sensor units were attached to the lower trunk and heel during gait, and an autocorrelation coefficient was calculated in three directions as parameters of gait variability of trunk movement. Musculoskeletal pain was assessed in two aspects: severity and the number of sites.
Moderate/severe pain intensity was significantly associated with slow gait speed and low AC in a mediolateral direction (P=0.024 and 0.026, respectively). Participants with musculoskeletal pain in multiple sites had significantly lower autocorrelation coefficient in mediolateral direction than did those without pain (P=0.003).
Presence of moderate/severe pain intensity in at least one site or any-intensity pain in multiple sites is associated with slower gait speed and higher gait variability of trunk movement in well-functioning elderly individuals living in the community. Additional studies are necessary to elucidate the causal relationships between musculoskeletal pain and gait.
诸如步态变异性等定量步态特征与肌肉骨骼疼痛之间的关联尚不清楚。我们旨在研究在社区居住的老年人中，步态速度和步态变异性是否与通过疼痛严重程度和疼痛部位数量评估的肌肉骨骼疼痛相关。
共有176名老年人参与了本研究。在步态过程中，将无线运动记录传感器单元连接到下躯干和足跟，并计算三个方向上的自相关系数，作为躯干运动步态变异性的参数。从严重程度和部位数量两个方面评估肌肉骨骼疼痛。
中度/重度疼痛强度与步态速度缓慢以及中外侧方向上的低自相关系数显著相关（分别为P = 0.024和0.026）。多处存在肌肉骨骼疼痛的参与者中外侧方向的自相关系数显著低于无疼痛者（P = 0.003）。
在社区居住的功能良好的老年人中，至少一个部位存在中度/重度疼痛强度或多个部位存在任何强度的疼痛与步态速度较慢和躯干运动的步态变异性较高有关。需要进一步研究以阐明肌肉骨骼疼痛与步态之间的因果关系。
