Vesey Renuka M, Hofman Paul L, Derraik José Gb, Colle Patrícia, Biggs Janene B, Munns Craig F, Cutfield Wayne S, Gusso Silmara
Liggins Institute, University of Auckland, Auckland, New Zealand.
A Better Start - National Science Challenge, University of Auckland, Auckland, New Zealand.
J Paediatr Child Health. 2020 Aug;56(8):1257-1262. doi: 10.1111/jpc.14913. Epub 2020 May 21.
A pilot study was performed to establish the safety, feasibility and efficacy of vibration therapy (VT) on bone and muscle health in children and adolescents with a range of musculoskeletal disorders.
Seventeen participants (15.7 years ± 2.9 years), with conditions that impacted on their musculoskeletal health, completed 20 weeks of side-alternating VT for 9 min/session, 4 times/week at 20 Hz. Data were collected at baseline and after 20 weeks of intervention. Assessments included whole-body dual-energyX-ray absorptiometry, muscle function (force plate) and 6-min walk test.
Compliance with the prescribed VT training protocol was relatively high overall at 78% and there were no adverse events reported. After 20 weeks intervention, functional assessments showed time taken to perform the chair test was reduced by 15% (P = 0.018), leg balance improved with standard ellipse area decreasing by 88% (P = 0.006) and distance walked in the 6-min walk test improved by 9% (P = 0.002). Participants displayed increased total body mass (1.94 kg; P = 0.018) with increased lean mass (1.20 kg; P = 0.019) but not fat mass (P = 0.19). There was no change in total body bone mineral density (P = 0.44) or bone mineral content (P = 0.07).
Twenty weeks of side-alternating VT was a feasible protocol that was associated with improvements in physical function and no detrimental effects on lean mass, bone mass or density in children and adolescents with musculoskeletal disorders.
开展一项试点研究，以确定振动疗法（VT）对患有一系列肌肉骨骼疾病的儿童和青少年骨骼与肌肉健康的安全性、可行性及疗效。
17名参与者（年龄15.7岁±2.9岁），其病情影响了肌肉骨骼健康，完成了为期20周的双侧交替振动疗法，每次治疗9分钟，每周4次，频率为20赫兹。在基线期和干预20周后收集数据。评估包括全身双能X线吸收法、肌肉功能（测力板）和6分钟步行试验。
总体而言，对规定的振动疗法训练方案的依从性较高，为78%，且未报告不良事件。干预20周后，功能评估显示，完成椅子试验所需时间减少了15%（P = 0.018），腿部平衡得到改善，标准椭圆面积减少了88%（P = 0.006），6分钟步行试验中的步行距离增加了9%（P = 0.002）。参与者的总体重增加了1.94千克（P = 0.018），瘦体重增加了1.20千克（P = 0.019），但脂肪量未增加（P = 0.19）。全身骨矿物质密度（P = 0.44）和骨矿物质含量（P = 0.07）没有变化。
对于患有肌肉骨骼疾病的儿童和青少年，为期20周的双侧交替振动疗法是一种可行的方案，与身体功能改善相关，且对瘦体重、骨量或骨密度无不利影响。
