Department of Physical Therapy, Faculty of Health Science, Kyoto Tachibana University, 34 Yamada-cho, Oyake, Yamashina-ku, Kyoto 607-8175, Japan.
Medicina (Kaunas). 2023 Oct 14;59(10):1831. doi: 10.3390/medicina59101831.
: Understanding the relationships between subjective shoulder stiffness, muscle hardness, and various factors is crucial. Our cross-sectional study identified subgroups of shoulder stiffness based on symptoms and muscle hardness and investigated associated factors. : measures included subjective stiffness, pain, muscle hardness, and factors like physical and psychological conditions, pressure pain threshold, postural alignment, heart rate variability, and electroencephalography in 40 healthy young individuals. : Three clusters were identified: Cluster 1 with high stiffness, pain, and muscle hardness; Cluster 2 with low stiffness and pain but high muscle hardness; and Cluster 3 with low levels of all factors. Cluster 1 had significantly higher central sensitization-related symptoms (CSS) scores than Cluster 2. Subjective stiffness is positively correlated with psychological factors. : our results suggest that CSS impacts subjective symptom severity among individuals with similar shoulder muscle hardness.
了解主观肩部僵硬、肌肉硬度与各种因素之间的关系至关重要。我们的横断面研究根据症状和肌肉硬度确定了肩部僵硬的亚组，并调查了相关因素。研究纳入了 40 名健康的年轻个体，测量了主观僵硬、疼痛、肌肉硬度以及身体和心理状况、压痛阈值、姿势排列、心率变异性和脑电图等因素。确定了三个聚类：聚类 1 具有高僵硬、疼痛和肌肉硬度；聚类 2 具有低僵硬和疼痛但肌肉硬度高；聚类 3 具有所有因素的低水平。聚类 1 的中枢敏化相关症状（CSS）评分明显高于聚类 2。主观僵硬与心理因素呈正相关。我们的研究结果表明，在具有相似肩部肌肉硬度的个体中，CSS 会影响主观症状的严重程度。
