Changes in pain rating index, visual analogue score, and present pain intensity after far-infrared ceramic microsphere intervention for the treatment of muscle injury / 中国组织工程研究

ABSTRACT

BACKGROUND: The far-infrared ceramic microspheres developed by the State Key Laboratory of “new ceramics and fine technology” of School of Materials, Tsinghua University, are made with ceramic colloidal injection molding technology. It is a new type of physical therapy material in the field of sports rehabilitation and daily health care. With its unique small circular structure, it can completely cover the damaged parts such as feet, waist, thigh, etc. to achieve comprehensive stimulation intervention. OBJECTIVE: To investigate the effect of far-infrared ceramic microspheres on pain Intensity after muscle injury. METHODS: Thirty college students aged 18-21 years who met the diagnosis standard of posterior femoral muscle group injury were included in this study. All of them provided informed consent. They were randomly divided into three groups, with 10 students per group. Students in the massage group underwent massage therapy. Students in the far-infrared instrument group were treated with ordinary far-infrared therapeutic apparatus. Students in the far-infrared ceramic microsphere Intervention group underwent far-infrared ceramic microsphere intervention. All treatments lasted 2 successive weeks. Before and 3, 7, and 14 days after treatment, McGill pain scale score (including pain rating index, visual analogue score and present pain intensity) was measured and compared within and between groups. RESULTS AND CONCLUSION: (1) Before treatment, there were no significant differences in pain rating index (sensory, affective, and total pain rating index scores), visual analogue score and present pain intensity between three groups (P > 0.05). (2) At 3 days of treatment, pain rating index, visual analogue score and present pain intensity score in the far-infrared ceramic microsphere intervention group were significantly lower compared with the massage and far-infrared instrument groups (P < 0.05). After 7 and 14 days of treatment, each studied indicator in the far-infrared ceramic microsphere intervention group was highly significantly lower compared with the other two groups (P < 0.01). (3) At 3 days of treatment, score of each pain indicator in the far-infrared ceramic microsphere intervention group was significantly lower compared with before treatment (P < 0.05), and it was significantly decreased compared with that measured concurrently in the other two groups (P < 0.05). (4) At 7 days of treatment, score of each pain indicator in the far-infrared ceramic microsphere intervention group was significantly lower compared with before treatment (P < 0.01), and it was significantly decreased compared with that measured concurrently in the other two groups (P < 0.05). (5) After 14 days of treatment, score of each pain indicator in the massage and far-infrared instrument groups was significantly lower compared with before treatment (P < 0.05). After 14 days of treatment, score of each pain indicator in the far-infrared ceramic microsphere intervention group was highly significantly lower compared with before treatment (P < 0.01). After 14 days of treatment, score of each pain indicator in the far-infrared ceramic microsphere intervention group was significantly lower compared with the other two groups. These findings suggest that far-infrared ceramic microsphere intervention can effectively reduce the degree of posterior femoral muscle group Injury and effectively promote the recovery of muscle injury.