Cardiovascular Aging Research Lab, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, United States.
Department of Human Development, Kokugakuin University, Yokohama, Japan.
Int J Sports Med. 2019 Oct;40(11):696-703. doi: 10.1055/a-0951-0017. Epub 2019 Aug 24.
There is a well-conceived notion that rate of recovery from strenuous exercise gets slower with age. However, it is unclear whether older adults who exercise habitually demonstrate slower rates of recovery. We determined whether older adults who are physically active demonstrate slower rates of recovery from unaccustomed strenuous exercise compared with younger peers. Healthy young sedentary (n=10, 28±2 years), young endurance-trained (n=15, 27±2 years), and older endurance-trained (n=14, 58±2 years) men and women were studied. Participants performed 45 min of downhill running at 65% of their maximal oxygen consumption. Visual analog pain scores of muscle groups increased at 24, 48, and 72 h in all three groups (p<0.05), and changes in the muscular pain scale of the legs was smaller in the older trained group than in the young trained group. Maximum isometric strengths at 90° decreased in all groups at 24 h, but the recovery rates were not different at 72 h among the groups. Plasma creatine kinase activity and myoglobin concentration increased at 24 h following downhill running and returned to baseline at 48 h in both the young and older trained groups. The present findings are not consistent with the prevailing notion that older trained adults have a slower rate of recovery from strenuous exercise.
有一种经过深思熟虑的观点认为，从剧烈运动中恢复的速度会随着年龄的增长而变慢。然而，目前尚不清楚经常锻炼的老年人是否表现出恢复速度较慢的情况。我们确定了与年轻同龄人相比，身体活跃的老年人是否从不习惯的剧烈运动中恢复得较慢。研究了健康的年轻久坐（n=10，28±2 岁）、年轻耐力训练（n=15，27±2 岁）和老年耐力训练（n=14，58±2 岁）的男性和女性。参与者以最大摄氧量的 65%进行了 45 分钟的下坡跑步。所有三组的肌肉群视觉模拟疼痛评分在 24、48 和 72 小时时均增加（p<0.05），并且腿部肌肉疼痛量表的变化在老年训练组中小于年轻训练组。所有组在 24 小时时最大等速强度均下降，但在 72 小时时各组的恢复率没有差异。在进行下坡跑后，血浆肌酸激酶活性和肌红蛋白浓度在 24 小时时升高，并且在年轻和老年训练组中均在 48 小时时恢复到基线。目前的研究结果与普遍认为的老年人从剧烈运动中恢复的速度较慢的观点不一致。
