Pressure pain threshold and somatosensory abnormalities in different ages and functional conditions of post-stroke elderly

作者：Yonghui Zhang, Haoran Xu, Yu-Chen Wang, Gong-Wei Hu, Xiao-Qin Ding, Xiao-Hua Shen, Hui Yang, Jifeng Rong, Xue‐Qiang Wang · 发表于：BMC Geriatrics · 年份：2022 · DOI：10.1186/s12877-022-03515-4 · 被引用次数：14 · 研究领域：Stroke Rehabilitation and Recovery、Botulinum Toxin and Related Neurological Disorders、Pain Mechanisms and Treatments

BACKGROUND: Somatosensory deficits and abnormal pain sensitivity are highly prevalent among stroke survivors, which negatively impacts their quality of life and recovery process. However, the factors for pressure pain threshold (PPT) and somatosensory abnormalities in post-stroke elderly remain unknown. The aim of this study was to explore the effects of age, side and other functional conditions, such as spasticity and motor functions, on PPT and sensory abnormalities among elderly after stroke. METHODS: The cross-sectional study finally included 43 post-stroke elderly aged over 60 and assessed the PPT of 14 bilateral muscles widely located in the whole body by using a digital force gage. Meanwhile, spasticity, motor function, joint pain and activity of daily living (ADL) were evaluated by the Modified Ashworth scale, Fugl-Meyer, and Barthel Index, respectively. All participants were divided into higher-aged and lower-aged groups based on the median age of all of them. RESULTS: Higher age tended to be associated with higher sensitivity but not significant except for one upper limb muscle, and the affected side showed significantly higher PPTs than the unaffected side in three out of seven muscles (p < 0.05). Furthermore, the somatosensory abnormalities in the affected side, particularly hypoalgesia, were more frequent in higher-aged than lower-aged patients in most assessed muscles. Meanwhile, patients with spasticity showed more increment of PPTs in affected muscles around t...