Jensen Lauren, Dancisak Michael, Korndorffer James
Doctoral candidate in Aging Studies, Tulane University, New Orleans, Louisiana.
Department of Biomedical Engineering, Tulane University, New Orleans, Louisiana.
Surg J (N Y). 2016 Nov 14;2(4):e126-e130. doi: 10.1055/s-0036-1594246. eCollection 2016 Oct.
A localized, intermittent muscle-cooling protocol was implemented to determine cooling garment efficacy in reducing upper extremity muscular fatigue and tremor in novice ( = 10) and experienced surgeons ( = 9). Subjects wore a muscle-cooling garment while performing multiple trials of a forearm exercise and paired suturing task to induce muscular fatigue and exercise-induced tremor. A reduction in tremor amplitude and an extension in time to fatigue were expected with muscle cooling as compared with control trials. Each subject completed an intervention session (5°C cooling condition) and a control session (32°C or thermal neutral condition). A paired samples test indicated that tremor amplitude was significantly reduced ( [8] = 1.89458; < 0.05) in experienced surgeons in two dimensions (up and down, and back and forth). Tremor amplitude was reduced in novice surgeons but the effect was not significant. Time to fatigue and suture time improved in both cohorts with muscle cooling, but the effect did not reach significance. Results from the pilot work suggest muscle cooling as an intervention for reduction of fatigue and tremor is very promising, warranting further investigation. Surgical specialties that require prolonged procedures might benefit more from this intervention.
实施了一种局部间歇性肌肉冷却方案，以确定冷却服在减轻新手（n = 10）和经验丰富的外科医生（n = 9）上肢肌肉疲劳和震颤方面的效果。受试者在进行前臂运动和配对缝合任务的多次试验以诱发肌肉疲劳和运动性震颤时，穿着肌肉冷却服。与对照试验相比，预计肌肉冷却会使震颤幅度降低，疲劳时间延长。每个受试者完成一次干预 session（5°C 冷却条件）和一次对照 session（32°C 或热中性条件）。配对样本检验表明，经验丰富的外科医生在两个维度（上下和前后）上的震颤幅度显著降低（t[8] = 1.89458；p < 0.05）。新手外科医生的震颤幅度有所降低，但效果不显著。肌肉冷却使两个队列的疲劳时间和缝合时间均有所改善，但效果未达到显著水平。初步工作结果表明，肌肉冷却作为一种减轻疲劳和震颤的干预措施非常有前景，值得进一步研究。需要长时间手术的外科专科可能会从这种干预中受益更多。
