Protective effect of weight-loss based exercise on the knee joints of patients with simple obesity
10.3760/cma.j.cn115624-20231022-00213
- VernacularTitle:基于减负的运动方式对单纯性肥胖患者膝关节的保护作用
- Author:
Peishun CHEN
1
;
Yu MIN
;
Yanjun LUO
;
Wanrong ZHANG
Author Information
1. 广州医科大学附属番禺中心医院康复医学科，广州 511431
- Keywords:
Obesity;
Power bicycle;
Moving treadmill training;
High-intensity interval exercise training
- From:
Chinese Journal of Health Management
2024;18(5):366-369
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the protective effect of weight-loss based exercises on the knee joints of patients with simple obesity.Methods:This study was a randomized controlled trial, 60 patients with simple obesity who met the inclusion and exclusion criteria and treated at the Affiliated Panyu Central Hospital of Guangzhou Medical University from April 2021 to April 2022 were selected as subjects. The patients were randomly divided into a power bicycle group (weight-loss, 30 cases) and a moving treadmill training group (non-weight-loss, 30 cases) using the random envelope method. High intensity interval exercise training was conducted in the hospital: slow warm-up for 1 minute, followed by rapid exercise for 3 minutes, and then rest for 1 minute. Repeated this cycle twice to form one set, and to perform 3 sets per session, 5 times per week, for a continuous training of 12 weeks. In addition, patients were not allowed to participate in other sports activities, and they should maintain their original dietary habits and patterns unchanged. Body mass index and body fat percentage were measured before and after treatment, and the cases with knee pain were recorded. The volume of knee cartilage was measured using magnetic resonance imaging. The local skin temperature of the knee was measured using an electronic thermometer before and after each training session. The t-tests, Pearson-tests and Mann-Whitney U tests were used to compare the differences in the above indicators between two groups before and after intervention to analyze the protective effect of weight-loss based exercise on the knee joints of patients with simple obesity. Results:There was no statistically significant difference in baseline data such as gender, age, height, and weight between the two groups before the intervention (all P>0.05). After the intervention, the body mass index, percentage of body fat, and knee cartilage volume of both groups were significantly lower than before the intervention, and the incidence of knee pain and local skin temperature of knee were significantly higher than before the intervention (all P<0.001). The incidence of the knee pain, reduction in knee cartilage volume, and elevation in local skin temperature in the power cycling group were all significantly lower than those in the moving treadmill training group [16.67% vs 100%, 0.12 (0.05, 0.27) vs 1.68 (1.15, 2.21) cm 3, (0.17±0.09) vs (0.64±0.15)℃, respectively] (all P<0.001). And there was no statistically significant difference in body mass index and body fat percentage between the two groups (both P>0.05). Conclusion:The weight-loss based exercise has a protective effect on the knee joint of patients with simple obesity, which can avoid a reduction in volume of knee cartilage and elevation in local skin temperature, and reduce the occurrence of pain.
