Department of Industrial Health, National Institute of Public Health, Shirokanedai 4-6-1, 108-8638, Minato-Ku, Tokyo, Japan.
Environ Health Prev Med. 1998 Jul;3(2):89-95. doi: 10.1007/BF02931790.
The principal objective of this paper is to develop a simple and rapid method of estimating levels of fatigue so that chronic fatigue can be prevented. Long-distance runners belonging to a successful corporate team (Group A; 25 males) and representative runners at the prefectural level (Group B; 14 males) participated in this study. We examined the effects of strenuous physical exercise on serum enzyme activity and the fatigue level felt by the runners (subjective fatigue).The following parameters were measured on two consecutive mornings during a training period: physical characteristics, serum-biochemistry using the dry-chemistry method, and subjective fatigue determined using the questionnaire regarding subjective symptoms authorized by the Japan Association of Industrial Health and the Profile of Mood State (POMS). Group A was divided into A-Senior (17 males; highest performance level) and A-Freshman (8 males) subgroups according to the length of employment within the corporation (one year or more and less than one year, respectively).The levels of serum aspartate aminotransferase (AST) and creatine kinase (CK) were significantly lower in the A-Senior group than the other groups and this group displayed the "iceberg" POMS profile at both examinations. Some significant correlations between the elements of POMS and serum enzyme activity levels were observed among all three groups during both examinations. The decline of serum CK levels tended to accompany a decrease in "Fatigue" according to POMS among 9 of 17 members of the A-Senior group. This tendency between the A-Senior and the A-Freshman groups statistically differed according to theX - square analysis.Our results suggest that the effects of physical stress on serum enzyme activity levels and subjective fatigue are affected by performance levels. Physical fatigue seemed to be reflected by serum CK levels. Monitoring subjective fatigue while measuring serum enzyme activity levels using the dry-chemistry method immediately provides clinical value to players and coaches on site, and should therefore help to prevent a shift from "overreaching" to "overtraining".
本文的主要目的是开发一种简单快速的疲劳评估方法,以预防慢性疲劳。本研究纳入了一支成功的企业长跑队(A 组,25 名男性)和县级代表长跑队(B 组,14 名男性)中的长跑运动员。我们考察了剧烈运动对血清酶活性和运动员疲劳感(主观疲劳)的影响。在训练期间的两个连续早晨,我们测量了以下参数:身体特征、使用干化学法的血清生物化学指标,以及由日本工业卫生协会授权的关于主观症状的问卷和心境状态剖面图(POMS)确定的主观疲劳。A 组根据在公司的工作年限(一年或以上和一年以下)分为 A-资深(17 名男性;最高表现水平)和 A-新生(8 名男性)两个亚组。A-资深组的血清天门冬氨酸氨基转移酶(AST)和肌酸激酶(CK)水平显著低于其他组,这组在两次检查中均表现出 POMS 的“冰山”剖面图。在两次检查中,所有三组之间都观察到 POMS 元素与血清酶活性水平之间存在一些显著相关性。在 A-资深组的 17 名成员中,有 9 名成员的血清 CK 水平下降与 POMS 的“疲劳”下降趋势一致。根据 X 平方分析,这种 A-资深组和 A-新生组之间的趋势在统计学上有所不同。我们的结果表明,身体应激对血清酶活性水平和主观疲劳的影响受到表现水平的影响。身体疲劳似乎反映在血清 CK 水平上。在现场使用干化学法测量血清酶活性水平的同时监测主观疲劳,可立即为运动员和教练员提供临床价值,因此有助于防止从“过度训练”转变为“过度训练”。