排序方式： 共有75条查询结果，搜索用时 625 毫秒
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《European Journal of Sport Science》2013,13(6):469-474
Abstract Objective: To evaluate the influence of hamstring extensibility on spinal and pelvic postures adopted by young paddlers in their kayaks. Methods: Sixty-eight young elite kayakers were recruited for the study (mean value 15.23, s=0.68 years). Thoracic and lumbar curvatures and pelvic position were evaluated with a Spinal Mouse system in standing position and in the boat (seated in the kayak with the paddle resting on their thighs, right entry position and left entry position). Hamstring muscle extensibility was determined in both legs by passive straight leg raise test (PSLR). The sample was divided into two groups with regard to straight leg raise angle (Group A, PSLR < 80°, n=32, and group B, PSLR ≥ 80°, n=32). Results: Paddlers with lower extensibility presented higher thoracic and lumbar flexion and a more posterior pelvic tilt in the kayak in all three positions. However, no significant differences were found between the groups when standing. Conclusion: The results suggest that lower hamstring extensibility is related to increased spinal flexion and posterior pelvic tilt, which can overload the spine during paddling training. A systematic and intensive stretching programme to improve hamstring muscle extensibility should be incorporated into the training activities of paddlers. 相似文献
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杜兰芳 《常熟理工学院学报》2006,20(6):57-59
一家五兄妹未成年就生活在不同的地方,成年后从事不同的职业,但均患腰椎间盘突出症;在本家系中遗传因素是腰椎间盘突出症的主要诱发因素,且可能与常染色体遗传有关。 相似文献
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Graeme G. Sorbie Fergal M. Grace Yaodong Gu Julien S. Baker 《Journal of sports sciences》2018,36(7):717-723
The purpose of this study was to compare the electromyography (EMG) patterns of the thoracic and lumbar regions of the erector spinae (ES) muscle during the golf swing whilst using four different golf clubs. Fifteen right-handed male golfers performed a total of twenty swings in random order using the driver, 4-iron, 7-iron and pitching-wedge. Surface EMG was recorded from the lead and trail sides of the thoracic and lumbar regions of the ES muscle (T8, L1 and L5 lateral to the spinous-process). Three-dimensional high-speed video analysis was used to identify the backswing, forward swing, acceleration, early and late follow-through phases of the golf swing. No significant differences in muscle-activation levels from the lead and trail sides of the thoracic and lumbar regions of the ES muscle were displayed between the driver, 4-iron, 7-iron and pitching-wedge (P > 0.05). The highest mean thoracic and lumbar ES muscle-activation levels were displayed in the forward swing (67–99% MVC) and acceleration (83–106% MVC) phases of the swing for all clubs tested. The findings from this study show that there were no significant statistical differences between the driver, 4-iron, 7-iron and pitching-wedge when examining muscle activity from the thoracic and lumbar regions of the ES muscle. 相似文献
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专业运动员腰部扭伤的原因和预防措施 总被引：2，自引：1，他引：1
运动损伤所带来的负面影响是显而易见的,它不仅影响运动员的身体健康,使其不能正常参加训练和比赛,还会妨碍运动成绩的提高,缩短运动寿命,必须给予足够的重视。对运动损伤来讲,防重于治。指出教练员和运动员应树立伤病防治的意识,科学合理地安排训练计划,避免运动损伤的发生。阐述了专业运动员最为常见的腰部扭伤的预防,指出运动员腰部扭伤的原因、临床表现、诊断和预防措施,以期帮助教练员运用现代科学知识,遵照运动训练的规律,认真钻研训练方案和训练计划,从而有效地避免和减少运动员腰部扭伤的发生。 相似文献
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Alejandro Martínez-Cava Ricardo Morán-Navarro Luis Sánchez-Medina Juan José González-Badillo 《Journal of sports sciences》2019,37(10):1088-1096
This study aimed to compare the load-velocity and load-power relationships of three common variations of the squat exercise. 52 strength-trained males performed a progressive loading test up to the one-repetition maximum (1RM) in the full (F-SQ), parallel (P-SQ) and half (H-SQ) squat, conducted in random order on separate days. Bar velocity and vertical force were measured by means of a linear velocity transducer time-synchronized with a force platform. The relative load that maximized power output (Pmax) was analyzed using three outcome measures: mean concentric (MP), mean propulsive (MPP) and peak power (PP), while also including or excluding body mass in force calculations. 1RM was significantly different between exercises. Load-velocity and load-power relationships were significantly different between the F-SQ, P-SQ and H-SQ variations. Close relationships (R2 = 0.92–0.96) between load (%1RM) and bar velocity were found and they were specific for each squat variation, with faster velocities the greater the squat depth. Unlike the F-SQ and P-SQ, no sticking region was observed for the H-SQ when lifting high loads. The Pmax corresponded to a broad load range and was greatly influenced by how force output is calculated (including or excluding body mass) as well as the exact outcome variable used (MP, MPP, PP). 相似文献
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腰椎间盘突出症手术治疗病人的护理 总被引：2，自引：0，他引：2
李国芳 《襄樊职业技术学院学报》2006,5(1):21-22
腰椎间盘突出症是骨科的常见病和多发病。临床上以腰痛伴有或不伴有下肢放射痛为主要症状。在非手术治疗无效的情况下，可进行手术。介绍了腰椎间盘突出症手术治疗病人的术前护理、术后护理的方法及注意事项。 相似文献
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目的:探讨多节段腰椎间盘突出的责任节段的定位方法及椎间孔镜下治疗的疗效观察。方法:从2014年1月至2015年12月,对收治的共32例多节段腰椎间盘突出患者,其中男性18例,女性14例;年龄49~77岁,平均58岁,所有病例均采用选择性神经根封闭术定位责任节段,其中27例患者再据责任节段行椎间孔镜下治疗。术前、术后均采用日本骨科协会(Japanese orthopaedic association.JOA)评分及视觉模拟疼痛评分法(visual analoguescale,VAS)评分对手术效果进行评估。结果:选择神经根封闭术后有5例患者未再行椎间孔镜下治疗,其中有3例患者疼痛减轻不明显,暂不行微创手术;另外2例患者症状明显减轻,拒绝进一步手术。27例患者均顺利完成手术,无感染、神经根损伤等并发症,所有患者术后随访,观察术后1个月、3个月、6个月,VAS评分较术前均明显降低(P0.05),JOA评分较术前均明显增高(P0.05),差异有统计学意义。结论:对于多节段腰椎间盘突出,先选择神经根封闭术明确责任节段,再行椎间孔镜下治疗能有效缓解患者症状,且手术创伤小,并发症少。 相似文献
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目的:对比身痛逐瘀汤加减与非甾体类抗炎药治疗腰椎间盘突出症的临床疗效。方法:检索维普资讯中文科技期刊数据库、CNKI中国期刊全文数据库,万方医学网数据库等。将符合纳入标准的7篇文献、774位患者的临床疗效进行Meta-分析。Meta-分析的软件为Cochrane协作网免费提供的Revman5.2专用软件。结果:提示身痛逐瘀汤治疗腰椎间盘突出症比非甾体类抗炎药治疗腰椎间盘突出症临床疗效好。结论:纳入资料Meta-分析后,同等基础条件下,治疗组中加入身痛逐瘀汤加减,对照组中加入单一或多种非甾体类抗炎药,治疗组可以显著提高治疗腰椎间盘突出症的有效率。 相似文献