This study compared the acute effects of electrical energy transfer(TECAR) and transcutaneous electrical stimulation(TENS) on pain and flexibility after a hamstring injury. Young athletes received either a 20 min TECA...This study compared the acute effects of electrical energy transfer(TECAR) and transcutaneous electrical stimulation(TENS) on pain and flexibility after a hamstring injury. Young athletes received either a 20 min TECAR(n = 24) or TENS(n = 26) session within 5 days following a hamstring injury, while the control(CON, n = 25)group was instructed to rest. Visual analogue scale(VAS), functional Assessment Scale for Acute Hamstring Injuries(FASH), straight leg raise test(SLR), and sit-and-reach scores(STR) were obtained prior to, immediately,24, and 48 h after therapy. Group differences were detected after therapy in VAS and FASH scores(p < 0.05).Compared to pre-therapy measurements, VAS scores showed a greater decrease in the TECAR group(-38.75% to-63.33%) than in the TENS group(-16.67% to-25.00%) and both were greater than in the CON group(-2.81%to-9.81%)(p < 0.05). The TECAR group improved FASH scores(28.57%–48.21%) more than the TENS group(15.89%–27.79%) and both groups more than the CON group(0%–8.33%)(p < 0.05). The increase in SLR and STR was greater in the TECAR group(6.26%–13.96%) than in the TENS(1.72%–9.53%) and CON groups(0%–3.03%). These results suggest that in the acute phase of hamstring injury, the use of TECAR and, to a lesser extent, TENS may relieve pain symptoms and bring some improvements in flexibility more than instructing patients to rest.展开更多
目的探讨集成磁共振成像(synthetic magnetic resonance imaging,SyMRI)技术对髌骨不稳患者膝关节周围肌肉定量检测的价值。材料与方法前瞻性纳入髌骨不稳患者45例(88侧膝关节),健康志愿者30例(60侧膝关节)。所有受试者均行双膝关节SyMR...目的探讨集成磁共振成像(synthetic magnetic resonance imaging,SyMRI)技术对髌骨不稳患者膝关节周围肌肉定量检测的价值。材料与方法前瞻性纳入髌骨不稳患者45例(88侧膝关节),健康志愿者30例(60侧膝关节)。所有受试者均行双膝关节SyMRI序列检查;扫描后获得常规对比加权图像及T1、T2、质子密度(proton density,PD)3种定量图谱。应用ITK-SNAP软件后处理平台,在膝关节横轴位图像测量股内侧肌、缝匠肌、股薄肌、半膜肌、半腱肌、股二头肌、股外侧肌、股中间肌的T1、T2、PD值,分析髌骨不稳患者与健康志愿者各肌肉间及髌骨不稳患者自身各肌肉间T1、T2、PD值的差异性。结果2名放射科医师对膝关节周围肌肉的T1、T2及PD值测量的结果一致性好,ICC值分别为0.928、0.954和0.929。与健康志愿相比,髌骨不稳患者肌肉T2值均升高,股内侧肌、半膜肌、股二头肌、股外侧肌、股中间肌的T2值变化差异有统计学意义(P<0.05);除股中间肌外,余各肌肉T1值降低,股薄肌、股二头肌、股外侧肌T1值的变化差异有统计学意义(P<0.05);各肌肉的PD值均减低,差异无统计学意义(P>0.05)。Wilcoxon非参数检验结果表明,髌骨不稳患者中,除半腱肌与股内侧肌T2值差异无统计学意义外(P>0.05),余肌肉与股内侧肌之间差异均有统计学意义(P<0.05)。结论SyMRI序列的定量参数值可有助于髌骨不稳患者膝关节周围肌肉的定量检测。展开更多
背景:研究表明,抗阻运动不仅通过机械应力直接刺激骨组织,还可通过诱导肌肉分泌多种肌因子间接调控骨代谢。目的:从“肌骨系统”整体视角探讨抗阻运动干预下肌因子对骨骼的调控机制。方法:检索Web of Science、PubMed、中国知网、万方...背景:研究表明,抗阻运动不仅通过机械应力直接刺激骨组织,还可通过诱导肌肉分泌多种肌因子间接调控骨代谢。目的:从“肌骨系统”整体视角探讨抗阻运动干预下肌因子对骨骼的调控机制。方法:检索Web of Science、PubMed、中国知网、万方和维普数据库从建库至2024年7月的相关文献,以“resistance exercise,myokines,bone metabolism,osteoporosis,sarcopenia”为英文检索词,“抗阻运动,肌因子,骨代谢,骨质疏松症,肌肉减少症”为中文检索词,最终纳入59篇文献进行综述。结果与结论:研究发现肌肉生长抑制素在肌肉生长和发育中起负调控作用,肌肉生长抑制素减少可促进肌肉增长。抗阻运动可能通过降低肌肉生长抑制素水平间接促进骨骼健康,但具体机制尚需进一步探究。鸢尾素可促进骨形成,而抗阻运动可显著提高鸢尾素水平,并可能通过激活Wnt/β-连环蛋白信号通路等促进骨细胞增殖和分化。基质金属蛋白酶2在骨重塑过程中发挥重要作用,它能够降解骨基质成分、维持骨吸收和形成之间的平衡。抗阻运动通过调节基质金属蛋白酶2活性可能有助于维持骨组织的正常结构和功能。胰岛素样生长因子1对骨骼生长和发育具有显著促进作用。抗阻运动能够增加胰岛素样生长因子1的表达和分泌,进而促进骨细胞增殖、分化和矿化,提高骨密度和强度。抗阻运动通过调节肌肉生长抑制素、鸢尾素、基质金属蛋白酶2和胰岛素样生长因子1等肌因子的表达和活性,对骨代谢产生积极影响,有助于预防和治疗骨质疏松症,然而具体机制仍需深入研究,以进一步阐明抗阻运动对肌骨系统的整体调控作用。展开更多
文摘This study compared the acute effects of electrical energy transfer(TECAR) and transcutaneous electrical stimulation(TENS) on pain and flexibility after a hamstring injury. Young athletes received either a 20 min TECAR(n = 24) or TENS(n = 26) session within 5 days following a hamstring injury, while the control(CON, n = 25)group was instructed to rest. Visual analogue scale(VAS), functional Assessment Scale for Acute Hamstring Injuries(FASH), straight leg raise test(SLR), and sit-and-reach scores(STR) were obtained prior to, immediately,24, and 48 h after therapy. Group differences were detected after therapy in VAS and FASH scores(p < 0.05).Compared to pre-therapy measurements, VAS scores showed a greater decrease in the TECAR group(-38.75% to-63.33%) than in the TENS group(-16.67% to-25.00%) and both were greater than in the CON group(-2.81%to-9.81%)(p < 0.05). The TECAR group improved FASH scores(28.57%–48.21%) more than the TENS group(15.89%–27.79%) and both groups more than the CON group(0%–8.33%)(p < 0.05). The increase in SLR and STR was greater in the TECAR group(6.26%–13.96%) than in the TENS(1.72%–9.53%) and CON groups(0%–3.03%). These results suggest that in the acute phase of hamstring injury, the use of TECAR and, to a lesser extent, TENS may relieve pain symptoms and bring some improvements in flexibility more than instructing patients to rest.
文摘目的探讨集成磁共振成像(synthetic magnetic resonance imaging,SyMRI)技术对髌骨不稳患者膝关节周围肌肉定量检测的价值。材料与方法前瞻性纳入髌骨不稳患者45例(88侧膝关节),健康志愿者30例(60侧膝关节)。所有受试者均行双膝关节SyMRI序列检查;扫描后获得常规对比加权图像及T1、T2、质子密度(proton density,PD)3种定量图谱。应用ITK-SNAP软件后处理平台,在膝关节横轴位图像测量股内侧肌、缝匠肌、股薄肌、半膜肌、半腱肌、股二头肌、股外侧肌、股中间肌的T1、T2、PD值,分析髌骨不稳患者与健康志愿者各肌肉间及髌骨不稳患者自身各肌肉间T1、T2、PD值的差异性。结果2名放射科医师对膝关节周围肌肉的T1、T2及PD值测量的结果一致性好,ICC值分别为0.928、0.954和0.929。与健康志愿相比,髌骨不稳患者肌肉T2值均升高,股内侧肌、半膜肌、股二头肌、股外侧肌、股中间肌的T2值变化差异有统计学意义(P<0.05);除股中间肌外,余各肌肉T1值降低,股薄肌、股二头肌、股外侧肌T1值的变化差异有统计学意义(P<0.05);各肌肉的PD值均减低,差异无统计学意义(P>0.05)。Wilcoxon非参数检验结果表明,髌骨不稳患者中,除半腱肌与股内侧肌T2值差异无统计学意义外(P>0.05),余肌肉与股内侧肌之间差异均有统计学意义(P<0.05)。结论SyMRI序列的定量参数值可有助于髌骨不稳患者膝关节周围肌肉的定量检测。
文摘背景:研究表明,抗阻运动不仅通过机械应力直接刺激骨组织,还可通过诱导肌肉分泌多种肌因子间接调控骨代谢。目的:从“肌骨系统”整体视角探讨抗阻运动干预下肌因子对骨骼的调控机制。方法:检索Web of Science、PubMed、中国知网、万方和维普数据库从建库至2024年7月的相关文献,以“resistance exercise,myokines,bone metabolism,osteoporosis,sarcopenia”为英文检索词,“抗阻运动,肌因子,骨代谢,骨质疏松症,肌肉减少症”为中文检索词,最终纳入59篇文献进行综述。结果与结论:研究发现肌肉生长抑制素在肌肉生长和发育中起负调控作用,肌肉生长抑制素减少可促进肌肉增长。抗阻运动可能通过降低肌肉生长抑制素水平间接促进骨骼健康,但具体机制尚需进一步探究。鸢尾素可促进骨形成,而抗阻运动可显著提高鸢尾素水平,并可能通过激活Wnt/β-连环蛋白信号通路等促进骨细胞增殖和分化。基质金属蛋白酶2在骨重塑过程中发挥重要作用,它能够降解骨基质成分、维持骨吸收和形成之间的平衡。抗阻运动通过调节基质金属蛋白酶2活性可能有助于维持骨组织的正常结构和功能。胰岛素样生长因子1对骨骼生长和发育具有显著促进作用。抗阻运动能够增加胰岛素样生长因子1的表达和分泌,进而促进骨细胞增殖、分化和矿化,提高骨密度和强度。抗阻运动通过调节肌肉生长抑制素、鸢尾素、基质金属蛋白酶2和胰岛素样生长因子1等肌因子的表达和活性,对骨代谢产生积极影响,有助于预防和治疗骨质疏松症,然而具体机制仍需深入研究,以进一步阐明抗阻运动对肌骨系统的整体调控作用。
