A Study on Serum Enzyme Activity Levels and Subjective Fatigue Scores in University Ekiden Runners

Kumae, Takashi; Arakawa, Hatsuko; Suzukawa, Kazumi; Ishizaki, Kaori; Uchiyama, Iwao

doi:10.7600/jspfsm1949.46.189

Cited by 3 publications

(4 citation statements)

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“…[6] In this paper, we measured serum enzymes related to physical load. [4,16] No significant difference between subjects and within experimental days was observed in the enzyme levels ( Table 2). These results suggest that the summer camp is well planned and managed by experienced staff.…”

Section: Discussionmentioning

confidence: 99%

“…During the summer camp, the subjects ran around a total of 1000 km, almost the same as male long-distance runners; [4][5][6] however, no significant difference within experimental days was observed in the changes in physical characteristics (Table 1). These results fit our previous report that, in male university long-distance runners, physical characteristics were stable for 9 months including the summer camp.…”

Section: Discussionmentioning

confidence: 99%

“…[4,16] Standard laboratory procedures were employed for the measurement of white blood cells (WBC) in whole blood and cell populations in WBC were examined differentially according to morphological differences.…”

Section: Blood Clinical Analysismentioning

confidence: 99%

“…[3] In a summer training camp, strenuous physical exercises are carried out to improve endurance ability. [4][5][6] Training fatigue is the normal result of several days of heavy training associated with an overload training stimulus. [3] Stress is defined as a state of disharmony provoked by a psychological, environmental or physiologic stressor.…”

Section: Introductionmentioning

confidence: 99%

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Effects of summer training camp on serum opsonic activity and plasma cytokine levels in female long‐distance runners

et al. 2009

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In a summer training camp, strenuous physical exercises are carried out to improve endurance ability. The effects of the training stress on the immune system have been studied extensively. However, less attention has been paid to non-specific immunological changes. Serum opsonic activity (SOA) is a more direct and suitable indicator of non-specific humoral immunity. In this study, we used the luminal-dependent chemiluminescence (LmCL) to measure reactive oxygen species generation from pooled human neutrophils as an indicator of SOA. We also measured plasma myeloperoxidase (MPO) and plasma cytokine levels. Twenty-two female college runners took part in this study after giving their written informed consent. There was no significant difference in the physical characteristics and serum enzyme levels. However, significant differences were observed in the changes of blood property and plasma cytokine levels. According to MPO levels, neutrophils in vivo may be deactivated during the camp. Positive correlations between fluctuations of pro- and anti-inflammatory cytokine levels were observed in this study. According to the results of peak time and peak height of LmCL, SOA seems to increase at first qualitatively and then quantitatively during the summer camp. The increased SOA level may compensate for the decrease in neutrophil activity.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Blood Clinical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of summer training camp on serum opsonic activity and plasma cytokine levels in female long‐distance runners

et al. 2009

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A study for prevention of chronic fatigue. part 2. effects of strenuous physical exercise performed in a training camp on serum enzyme activity levels and subjective fatigue.

Kumae

Kurakake²,

Arakawa

et al. 1998

Environ Health Prev Med

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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 AFreshman (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 the Xsquare 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 dinical value to players and coaches on site, and should therefore help to prevent a shift from "overreaching" to "overtraining".

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Relationship between Intrinsic Foot Muscle Fatigue and Foot Fatigue Sensation when Jogging for a Long Time

Iwasa

Saito

2020

The Japanese journal of ergonomics

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This study aims to examine the relationship between objective and subjective evaluations for the This study aims to examine the relationship between objective and subjective evaluations for the intrinsic foot muscles fatigue, and to elucidates the foot fatigue development. Ten male subjects with intrinsic foot muscles fatigue, and to elucidates the foot fatigue development. Ten male subjects with the habit of exercise ran on a treadmill at 12 the habit of exercise ran on a treadmill at 12 km/h for 60 km/h for 60 min. While jogging, surface electromyography min. While jogging, surface electromyography (SEMG) of the intrinsic muscle was performed, and the median frequency (MDF) drop variation was (SEMG) of the intrinsic muscle was performed, and the median frequency (MDF) drop variation was calculated. Further, the muscle fatigue of the subjects was measured using the visual analog scale. Our calculated. Further, the muscle fatigue of the subjects was measured using the visual analog scale. Our results show that the MDF drop variation significantly decreased with jogging. Additionally, subjective results show that the MDF drop variation significantly decreased with jogging. Additionally, subjective muscle fatigue caused by "fatigue, sluggishness, weight, tension, pain" appeared without delay in the muscle fatigue caused by "fatigue, sluggishness, weight, tension, pain" appeared without delay in the transition of the MDF drop variation. In general, the objective and subjective evaluations of intrinsic transition of the MDF drop variation. In general, the objective and subjective evaluations of intrinsic foot muscles fatigue development are in agree with foot fatigue development induced with jogging at foot muscles fatigue development are in agree with foot fatigue development induced with jogging at 12 12 km/h for 60 km/h for 60 min. min.

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A Study on Serum Enzyme Activity Levels and Subjective Fatigue Scores in University Ekiden Runners

Cited by 3 publications

References 25 publications

Effects of summer training camp on serum opsonic activity and plasma cytokine levels in female long‐distance runners

Effects of summer training camp on serum opsonic activity and plasma cytokine levels in female long‐distance runners

A study for prevention of chronic fatigue. part 2. effects of strenuous physical exercise performed in a training camp on serum enzyme activity levels and subjective fatigue.

Relationship between Intrinsic Foot Muscle Fatigue and Foot Fatigue Sensation when Jogging for a Long Time

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