远红外陶瓷微珠干预后肌肉物理3种特性指标的变化

文题释义：肌肉伸展性：是指肌肉放松状态下的机械张力，描述肌肉处在动作和放松状态之间的恢复反复状况。伸展性高于正常值将会扰乱肌肉中的血流状况，因为肌肉中的血管越是收缩血液就越少回流到达肌肉，肌肉伸展性升高将导致疼痛、运动能力下降、过载和其他现象，但较低的伸展性又显示较低的运动能力和肌肉疲软无力，故此维持正常的肌肉伸展性意义重大。 肌肉弹性：是指肌肉工作后产生收缩形变回复到初始状态的能力，表现肌肉血流在运动中供给状况及所能提高运动速度的能力。运动中骨骼肌的血流供给是否充分表现在其外形在2次收缩的间隙能否迅速恢复到原来的初始状态，即骨骼肌必须具备良好的弹性才能保证良好的血流供给，弹性下降会明显加速肌肉疲劳，并且如果骨骼肌弹性有问题其运动速度必定也会受到制约。 背景：远红外光波治疗可促进血液快速流动、强化各组织间物质能量交换和促进骨骼肌微损伤快速恢复等能力，其中远红外陶瓷微珠为近年来运动理疗、康复领域一种崭新的功能康复材料。 目的：以远红外陶瓷微珠为干预手段，验证其对骨骼肌损伤后肌肉伸展性、肌肉硬度和肌肉弹性物理3特性指标的影响。 方法：选择年龄18-21岁各体育专业确诊为股后肌群损伤的男性在校学生为试验对象，通过筛选最终纳入20名受试者，随机数字表法分为2组，分别进行普通远红外治疗仪(对照组)与远红外陶瓷微珠干预治疗(试验组)，每组10名受试者，连续干预2周。利用无创肌肉检测系统采集治疗前与治疗后第3，7，14天的股后肌肉伸展性、肌肉硬度和肌肉弹性数据。 结果与结论：①试验组治疗后3，7，14 d的肌肉伸展性大于治疗前(P < 0.05，P < 0.01)，且治疗后14 d已恢复至健侧水平(P > 0.05)；对照组仅治疗后14 d的肌肉伸展性大于治疗前(P < 0.05)，但仍低于健侧(P < 0.05)；试验组治疗后不同时间点的肌肉伸展性大于对照组(P < 0.05，P < 0.01)；②试验组治疗后3，7，14 d的肌肉硬度大于治疗前(P < 0.05，P < 0.01)，且治疗后14 d已恢复至健侧水平(P > 0.05)；对照组仅治疗后14 d的肌肉硬度大于治疗前(P < 0.05)，但仍低于健侧(P < 0.05)；试验组治疗后不同时间点的肌肉硬度大于对照组(P < 0.05，P < 0.01)；③试验组治疗后3，7，14 d的肌肉弹性大于治疗前(P < 0.05，P < 0.01)，且治疗后14 d已恢复至健侧水平(P > 0.05)；对照组仅治疗后14 d的肌肉弹性大于治疗前(P < 0.05)，但仍低于健侧(P < 0.05)；试验组治疗后不同时间点的肌肉弹性大于对照组(P < 0.05，P < 0.01)；④结果表明，远红外陶瓷微珠干预可提高肌肉的伸展性、弹性，降低肌肉硬度，促进损伤肌肉的恢复。 ORCID: 0000-0002-9375-1940(何建伟) 中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Changes in three physical indicators of the muscle after far-infrared ceramic microsphere intervention

BACKGROUND:Far-infrared wave therapy can accelerate blood flow rapidly,strengthen the exchange of substance and energy among tissues,and promote the rapid recovery of musculoskeletal micro-injury.The far-infrared ceramic microsphere is a new functional rehabilitation material in the field of physical therapy and rehabilitation in recent years.OBJECTIVE:To verify the therapeutic effectiveness of far-infrared ceramic microsphere intervention on muscle extensibility,stiffness,and elasticity after musculoskeletal injury.METHODS:Male students aged 18-21 years who were diagnosed with posterior femoral muscle injury in each sports specialty were selected as test subjects.Twenty subjects were selected and randomly divided into two groups(n=10/group),and then underwent far-infrared therapeutic apparatus(control group)and far-infrared ceramic microsphere intervention treatment(trial group)for 2 consecutive weeks.A non-invasive muscle detection system was used to collect muscle extensibility,muscle stiffness,and muscle elasticity data before and 3,7,and 14 days after treatment.RESULTS AND CONCLUSION:(1)The muscle extensibility in the trial group at 3,7,and 14 days after treatment was higher than that before treatment(P<0.05,P<0.01),and it had returned to the level of the healthy side at 14 days after treatment(P>0.05).In the control group,the muscle extensibility at 14 days after treatment was higher than that before treatment(P<0.05),but it was still lower than that of the healthy side(P<0.05).The muscle extensibility at different time points in the trial group was higher than that in the control group(P<0.05,P<0.01).(2)The muscle stiffness in the trial group at 3,7,and 14 days after treatment was higher than that before treatment(P<0.05,P<0.01),and at 14 days after treatment,it had returned to the level of the healthy side(P>0.05).In the control group,the muscle stiffness at 14 days after treatment was higher than that before treatment(P<0.05),but it was still lower than that of the healthy side(P<0.05).The muscle stiffness at different time points in the trial group was higher than that in the control group(P<0.05,P<0.01).(3)The muscle elasticity in the trial group at 3,7,and 14 days after treatment was higher than that before treatment(P<0.05,P<0.01),and at 14 days after treatment it had returned to the level of the healthy side(P>0.05).In the control group,the muscle elasticity at 14 days after treatment was higher than that before treatment(P<0.05),but it was still lower than that of the healthy side(P<0.05).The muscle elasticity at different time points in the trial group was higher than that in the control group(P<0.05,P<0.01).(4)In summary,far-infrared ceramic microspheres can improve muscle extensibility and elasticity,reduce muscle stiffness and promote the recovery of muscle damage.