Nakas-Ićindić Emina, Hadzović Almira, Kucukalić-Selimović Elma, Avdagić Nesina, Zaćiragić Asija
Institute of Physiology and Biochemistry, School of Medicine, University of Sarajevo, Bosnia and Herzegovina.
Bosn J Basic Med Sci. 2006 Aug;6(3):68-72. doi: 10.17305/bjbms.2006.3148.
Physical effort is a strong physiological stimulus that provokes an increase in blood growth hormone (GH) concentration. Interactions between GH and body composition are very complex. Seven athletes and seven age-matched controls completed a single 30-min bout of upright cycling exercise (5 % of VO(2max).) in order to estimate the influence of body composition on serum GH concentration during exercise. The serum GH concentration was measured in blood samples by standard immunoradiometric (IRMA) method. Anthropometric measurements were used for the calculation of body composition. There were no significant differences in total body mass or body mass index between the groups. The athletes had significantly less fat and higher bone and muscle mass. Serum GH concentration was 2.39 times higher in the athlets versus the control in the period of rest. During acute exercise, the serum GH concentration increased in both groups. No statistically significant differences between the groups in serum GH concentration were found either during the exercise or in the recovery. No correlation between body composition and serum GH concentration was found. Body composition depends on the level of physical activities but if the total body mass is in physiologycal range it does not influence the serum GH response to acute exercise.
体力活动是一种强烈的生理刺激，可促使血液中生长激素（GH）浓度升高。GH与身体成分之间的相互作用非常复杂。七名运动员和七名年龄匹配的对照组人员完成了一次30分钟的直立自行车运动（5%的最大摄氧量），以评估身体成分对运动期间血清GH浓度的影响。通过标准免疫放射分析（IRMA）方法测量血样中的血清GH浓度。人体测量用于计算身体成分。两组之间的总体重或体重指数没有显著差异。运动员的脂肪明显更少，骨骼和肌肉质量更高。在休息期间，运动员的血清GH浓度是对照组的2.39倍。在急性运动期间，两组的血清GH浓度均升高。在运动期间或恢复过程中，两组之间的血清GH浓度没有发现统计学上的显著差异。未发现身体成分与血清GH浓度之间存在相关性。身体成分取决于体力活动水平，但如果总体重在生理范围内，它不会影响血清GH对急性运动的反应。
