Harput Gulcan, Guney-Deniz Hande, Ozer Hamza, Baltaci Gul, Mattacola Carl
Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey.
Department of Orthopaedic and Traumatology, Faculty of Medicine, Gazi University, Ankara, Turkey.
Clin J Sport Med. 2020 Nov;30(6):e194-e200. doi: 10.1097/JSM.0000000000000669.
Our aim was to investigate the effect of body mass index (BMI) levels on quadriceps and hamstring strength and functional outcomes up to 6 months after anterior cruciate ligament reconstruction (ACLR) with hamstring tendon autograft (HTG).
Prospective, controlled study.
University clinical laboratory.
Ninety-one participants who had undergone unilateral ACLR with HTG were divided into 2 groups according to their BMI. The participants whose BMI were between 18.5 and 24.9 kg/m were included in group 1 (n = 50, age: 27.2 ± 6.7 years, BMI: 22.3 ± 1.6 kg/m) and those whose BMI > 24.9 kg/m were included in group 2 (n = 41, age: 30.2 ± 6.9 years, BMI: 28.0 ± 2.4 kg/m).
Quadriceps and hamstring strength, functional performance including hop, jump, and balance performance, and IKDC score.
Maximum voluntary isometric contraction of the quadriceps and hamstring muscles and the body mass were measured at 1, 3, and 6 months after surgery. Absolute peak torques and normalized peak torques to body weight for both limbs were recorded. Functional outcomes were evaluated at 6 months after surgery.
Normalized quadriceps strength improvement was lower in group 2 when compared with group 1 (F(2,178) = 6.23, P = 0.003). Group 2 also demonstrated lower scores in functional performance (P < 0.05). Normalized hamstring and absolute quadriceps and hamstring strength improvement was not affected by higher BMI level (P > 0.05).
Higher BMI levels adversely affect quadriceps strength capacity and performance in patients who have undergone ACLR with HTG. Clinicians should consider BMI levels of patients when assessing and targeting muscle recovery because it could negatively affect the success of the ACLR rehabilitation.
我们的目的是研究体重指数（BMI）水平对采用自体腘绳肌腱（HTG）进行前交叉韧带重建（ACLR）术后长达6个月的股四头肌和腘绳肌力量以及功能结局的影响。
前瞻性对照研究。
大学临床实验室。
91例接受单侧HTG-ACLR的参与者根据其BMI分为2组。BMI在18.5至24.9kg/m之间的参与者纳入第1组（n = 50，年龄：27.2±6.7岁，BMI：22.3±1.6kg/m），BMI> 24.9kg/m的参与者纳入第2组（n = 41，年龄：30.2±6.9岁，BMI：28.0±2.4kg/m）。
股四头肌和腘绳肌力量、包括单腿跳、跳跃和平衡表现的功能表现以及国际膝关节文献委员会（IKDC）评分。
在术后1、3和6个月测量股四头肌和腘绳肌的最大自主等长收缩以及体重。记录双下肢的绝对峰值扭矩和相对于体重的标准化峰值扭矩。在术后6个月评估功能结局。
与第1组相比，第2组的标准化股四头肌力量改善较低（F(2,178)= 6.23，P = 0.003）。第2组在功能表现方面也得分较低（P <0.05）。较高的BMI水平未影响标准化腘绳肌以及股四头肌和腘绳肌的绝对力量改善（P> 0.05）。
较高的BMI水平对接受HTG-ACLR治疗的患者的股四头肌力量能力和表现产生不利影响。临床医生在评估和针对肌肉恢复时应考虑患者的BMI水平，因为它可能对ACLR康复的成功产生负面影响。
