نوع مقاله : علمی - پژوهشی
نویسندگان
دانشگاه ارومیه
چکیده
کلیدواژهها
عنوان مقاله [English]
Purpose: The purpose of this study is to determine and compare the blood lactate, growth hormone
and testosterone responses to arm and leg exercises. Methods: Eight young professional karate
players (age, 18.90±2.20) volunteered to participate in this study. The subjects completed two
exercise protocols on arm and leg ergometers with one week intervening. Blood samples were
collected after two exercise tests and were analyzed to determine blood lactate concentrations by
using enzymatic lactate reagent and growth hormone and testosterone concentrations by using an
immunoassay method. Results: There were no significant differences between effects of arm and
leg exercises on blood lactate, growth hormone and testosterone concentration (P=0.30, P=0.07 and
P=0.78, respectively). There was a significant correlation between blood lactate and growth
hormone concentrations in both arm and leg exercise (r=0.81 and r=071, respectively). In addition,
there was a significant correlation between blood lactate and testosterone concentrations in arm
exercise (r=0.71), but there was no significant correlation between blood lactate and testosterone
concentrations in leg exercise (r=0.61). Conclusions: In conclusion, the results of this study
suggest that there is no difference between the effects of upper and lower body exercise on blood
lactate, growth hormone and testosterone concentrations. However, in designing training programs
for professional karate players, with respect to anabolic hormones, relative exercise intensity for
upper and lower body exercises can be very important.
کلیدواژهها [English]