School of Sport Economics and Management, Tianjin University of Sport, Tianjin 301617, China.
School of Sport, Daqing Normal University, Daqing, Heilongjiang 163712, China.
Scanning. 2022 Jun 16;2022:9971966. doi: 10.1155/2022/9971966. eCollection 2022.
In order to investigate the changes of temporal function metabolism of lumbar and back muscles after exercise, a magnetic resonance imaging- (MRI-) based assessment of fatigue injury during exercise was proposed. A total of 100 healthy adult volunteers were selected, including 48 males and 52 females, aged from 19 to 30 years, with an average age of 24.8 + 2.3 years. They were divided into four groups according to the different time points of 0, 15, 30, and 45 minutes after exercise, with 25 persons in each group. PHILIPS Achieva 3.0 T Tx MRI scanner was used to perform BOLD and T2-mapping before and after exercise in four groups of healthy volunteers. All data were analyzed by statistical software. The results showed that the total CSA of the dorsi extensor muscle group and the CSA value of the dorsi extensor muscle group at different levels at different time points before and after exercise increased slowly in exercise period and decreased rapidly in recovery period. It was verified that BOLD MRI and T2-mapping imaging can indirectly evaluate the trend of CSA water metabolism and blood oxygen level in healthy adults after exercise.
为了研究运动后腰背部肌肉的时性功能代谢变化，提出了一种基于磁共振成像（MRI）的运动性疲劳损伤评估方法。共选择了 100 名健康成年志愿者，包括 48 名男性和 52 名女性，年龄 19 至 30 岁，平均年龄 24.8+2.3 岁。他们根据运动后 0、15、30 和 45 分钟的不同时间点分为四组，每组 25 人。使用 PHILIPS Achieva 3.0T Tx MRI 扫描仪在四组健康志愿者运动前后进行 BOLD 和 T2 映射。所有数据均采用统计软件进行分析。结果表明，运动期间背伸肌总 CSA 和运动前后不同水平背伸肌 CSA 值缓慢增加，恢复期迅速下降。验证了 BOLD MRI 和 T2 映射成像可以间接评估健康成年人运动后 CSA 水代谢和血氧水平的趋势。
