نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری فیزیولوژی ورزشی، گروه فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه گیلان، رشت، ایران.
2 دانشیار گروه فیزیولوژی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه گیلان، رشت، ایران.
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Objectives: Resistance exercise with novel training methods is accompanied by various physiological and psychological responses. The main purpose of this research was to investigate the effects of blood flow restriction and hypoxic mask on plasma IGF-1 concentration, blood lactate, and perceived exertion in response to acute resistance exercise in trained individuals.
Methods: A crossover design was used in this study. 11 trained individuals (mean age 29.2±5.7 years and body mass index 25.3± 2.7 kg/m2) were randomly assigned to three resistance training methods for three consecutive weeks: traditional resistance training (75%-80% 1RM), resistance training with blood flow restriction (20%-50% 1RM), and resistance training with hypoxic mask (20%-50% 1RM). Resistance exercise consisted of four sets of leg press exercises. Blood samples were measured before and immediately after exercise, and to assess the perceived exertion, the subjects reported their status using the Borg scale (6-20 points) after each set of exercise. Data were analyzed using repeated measures ANOVA, mixed ANOVA, and Bonferroni post hoc test at a significance level of p<0.05.
Results: All three resistance training methods resulted in a significant increase in blood lactate and perceived exertion (p<0.05) and no change in plasma IGF-1 concentration in the non-restricted method after exercise. Additionally, resistance training with hypoxic mask significantly increased blood lactate concentration and perceived exertion compared to the other two methods (p<0.01).
Conclusion: The results of this research showed that resistance exercise with all three training methods results in different responses in plasma IGF-1 concentration, blood lactate, and perceived exertion, and the magnitude of these changes depends on the intensity and type of exercise used.
کلیدواژه‌ها [English]
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