Achilles' Tendon Experiences Reduced Depth and Volume After 3 Months of Recovery From 60 Days Bedrest.

IF 3.7 2区 医学 Q1 REHABILITATION
T Mark Campbell, Mohamed Thabet, Gerd Melkus, Gabriele Armbrecht, Guy Trudel
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引用次数: 0

Abstract

Objectives: To examine the effect of 60-days of bedrest on morphologic changes in the Achilles' tendon using magnetic resonance imaging in 24 adults, and to explore the effects of artificial gravity (AG) by centrifugation intervention to counteract the effect of 60-days' bedrest on such changes.

Design: Randomized controlled trial evaluating the effect of 30 minutes AG application, either continuously daily, or intermittently 6×5 minute sessions daily.

Setting: Experimental bedrest facility.

Participants: Healthy participants (N = 24) aged 24-55 years.

Interventions: continuous AG (N = 8), intermittent AG (N = 8).

Main outcome measures: Achilles' tendon dimensions: depth, width, and cross-section area, volume at 2, 4, and 6 cm proximal to the tendon calcaneal insertion as baseline (baseline data collection), bedrest day-30 (HDT30) or 60 (HDT60), and during reambulation days 8, 90, and 450 (R8, R90, R450).

Results: Neither continuous nor intermittent AG interventions had any statistically significant effect on the Achilles' tendon dimensions. No changes in the Achilles' tendon were observed during bedrest. After 90-days of reambulation Achilles' tendons were thinner at 2 cm with reduced volume at 2-4 cm and 4-6 cm and reduced volume 2-4 cm, 4-6 cm and 2-6 cm after 450-days of reambulation compared with baseline. Compared with day 8 of reambulation, Achilles' tendons were thinner at 2, 4, and 6 cm from insertion and had decreased volume 2-4 cm, 4-6 cm and 2-6 cm after 450-days of reambulation.

Conclusions: This randomized controlled trial found no difference between control and AG interventions on Achilles' tendon dimensions during 60-days of bedrest. Following 90- and 450-days of reambulation after bedrest, participants had thinner and smaller Achilles' tendons, not prevented by AG. This study suggests that tendon changes can occur and persist after bedrest well into the reambulation phase and that clinicians should remain longitudinally vigilant for Achilles' injury.

卧床60天后,3个月后,跟腱深度和体积减小;卧床后,跟腱变薄。
目的:1)利用MRI观察24例成人卧床60天对跟腱形态变化的影响,2)通过离心干预探讨人工重力(AG)抵消60天卧床对跟腱形态变化的影响。设计:随机对照试验(RCT)评估30分钟AG应用的效果,包括每天连续(cAG)或间歇性6 × 每天5分钟(iAG)。设置:实验卧床设备。参与者:24至55岁的健康参与者。主要观察指标:跟腱尺寸:深度、宽度、横截面积(CSA)、与跟腱止点近端2cm、4cm、6cm处的体积作为基线(BDC)、卧床第30天(HDT30)或第60天(HDT60)以及在复诊第8、90和450天(R8、R90、R450)。结果:cAG和iAG干预对跟腱尺寸均无统计学意义的影响。卧床期间未观察到跟腱的变化。与基线相比,重建90天后跟腱在2cm处变薄,2-4cm和4-6cm处体积减小,重建450天后跟腱在2-4cm、4-6cm和2-6cm处体积减小。与重建后第8天相比,重建后450天,跟腱在距止点2cm、4cm和6cm处变薄,体积减小2-4cm、4-6cm和2-6cm。结论:该随机对照试验发现,在60天的卧床期间,对照组和AG干预在跟腱尺寸上没有差异。卧床后90天和450天后,参与者的跟腱变细变小,并没有受到AG的影响。这项研究表明,卧床后,跟腱的变化可能发生并持续到重新活动阶段,临床医生应该对跟腱损伤保持长期警惕。
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来源期刊
CiteScore
6.20
自引率
4.70%
发文量
495
审稿时长
38 days
期刊介绍: The Archives of Physical Medicine and Rehabilitation publishes original, peer-reviewed research and clinical reports on important trends and developments in physical medicine and rehabilitation and related fields. This international journal brings researchers and clinicians authoritative information on the therapeutic utilization of physical, behavioral and pharmaceutical agents in providing comprehensive care for individuals with chronic illness and disabilities. Archives began publication in 1920, publishes monthly, and is the official journal of the American Congress of Rehabilitation Medicine. Its papers are cited more often than any other rehabilitation journal.
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