■下肢骨应力损伤(BSI)是运动员和军人中常见的损伤。典型的管理涉及一段有限的负重期,这可能对肌肉和骨骼生理产生快速的有害影响。很少有研究研究在康复环境中血流限制(BFR)训练对骨骼的影响。
■本研究的目的是研究下肢运动加BFR对骨密度的影响,骨矿物质含量,和瘦体重的军事成员与胫骨BSI。
■案例系列。
■招募了20名经MRI证实的胫骨BSI的军事成员,以完成下肢运动,每周两次增加BFR,为期四周。在参与者进行臀位时,将BFR袖带应用于其受累肢体的近端,大腿,和腿部阻力练习。在基线和四周评估结果。主要结果是整腿骨密度(BMD),骨矿物质含量(BMC),和通过双能X射线吸收法测量的瘦体重(LM)。次要结果包括大腿和腿围测量和患者报告的结果,包括下肢功能量表(LEFS),患者报告结果测量信息系统57(PROMIS-57),和全球变化评级(GROC)。
■随着时间的推移,肢体之间或肢体内部的BMD(p=0.720)或BMC(p=0.749)均未发现显着差异。受累肢体的LM通常较少(p=0.019),然而,随着时间的推移,肢体之间或肢体内部没有显着差异(p=0.404)。对于大腿周长,发现时间(p=0.012)和肢体(p=0.015)有显著的主要效应,然而没有显著的交互效应(p=0.510)。腿围没有发现显着差异(p=0.738)。参与者显示LEFS的平均变化显著(15.15分),PROMIS物理功能(8.98分),PROMIS社会参与(7.60分),PROMIS焦虑(3.26分),和PROMIS疼痛干扰(8.39分)在四周。
■在胫骨BSI的早期康复管理中使用BFR可能有助于减轻身体负荷降低期间骨骼和肌肉组织的减少。
■4.
UNASSIGNED: Lower extremity bone stress injuries (BSI) are common injuries among athletes and military members. Typical management involves a period of restricted weightbearing which can have rapid detrimental effects upon both muscle and bone physiology. Few studies have investigated the effect of blood flow restriction (BFR) training on bone in the rehabilitative setting.
UNASSIGNED: The purpose of this study was to investigate the effects of lower extremity exercise with the addition of BFR upon bone mineral density, bone mineral content, and lean body mass in military members with tibial BSIs.
UNASSIGNED: Case series.
UNASSIGNED: Twenty military members with MRI-confirmed tibial BSI were recruited to complete lower extremity exercise with the addition of BFR twice per week for four weeks. The BFR cuff was applied proximally to the participant\'s involved limb while they performed gluteal, thigh, and leg resistance exercises. Outcomes were assessed at baseline and four weeks. The primary outcomes were whole leg bone mineral density (BMD), bone mineral content (BMC), and lean body mass (LM) as measured by dual-energy x-ray absorptiometry. Secondary outcomes included thigh and leg circumference measures and patient-reported outcomes, including the Lower Extremity Functional Scale (LEFS), Patient-Reported Outcomes Measurement Information System 57 (PROMIS-57), and Global Rating of Change (GROC).
UNASSIGNED: No significant differences were found in BMD (p=0.720) or BMC (p=0.749) between limbs or within limbs over time. LM was generally less in the involved limb (p=0.019), however there were no significant differences between or within limbs over time (p=0.404). For thigh circumference, significant main effects were found for time (p=0.012) and limb (p=0.015), however there was no significant interaction effect (p=0.510). No significant differences were found for leg circumference (p=0.738). Participants showed significant mean changes in LEFS (15.15 points), PROMIS physical function (8.98 points), PROMIS social participation (7.60 points), PROMIS anxiety (3.26 points), and PROMIS pain interference (8.39 points) at four weeks.
UNASSIGNED: The utilization of BFR in the early rehabilitative management of tibial BSI may help mitigate decrements in both bone and muscle tissue during periods of decreased physical loading.
UNASSIGNED: 4.