Response and adaptation to exercises
Amin roshandel hesari
Abstract
The purpose of this research was to investigate the effect of 8 and 12 weeks of high intensity interval training (HIIT) on the serum level of C-reactive protein (CRP), interleukin-6 (IL-6), homocysteine (HCY) and lipid profile of active middle-aged men.For this purpose, 30 active middle-aged men, were ...
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The purpose of this research was to investigate the effect of 8 and 12 weeks of high intensity interval training (HIIT) on the serum level of C-reactive protein (CRP), interleukin-6 (IL-6), homocysteine (HCY) and lipid profile of active middle-aged men.For this purpose, 30 active middle-aged men, were randomly divided into two groups: HIIT training and control group. HIIT Training subjects do HIT training 3 session per week for 12 weeks with 90% of maximum heart rate. The Serum levels of CRP, IL-6, HCY, HDL, LDL, TC and TG were measured 12 hours before the first session of training protocol, and 48 hours after 8th and 12th weeks of HIIT. Results show that HIIT had a significant effect on LDL, TC and TG Indices in active middle-aged men in both 8 and 12 weeks (P˂0/05). On the other hand, HIIT did not have a significant effect on CRP (P=0/848), IL-6 (P=0/080) and HCY (P=0/247) indices in 8 weeks, but it did have a significant effect on CRP (P=0/003), IL-6 (P=0/019) and HCY (P=0/012) indices in 12 weeks. HIIT appears to produce favorable changes on lipid profile of middle-aged men over a period of 8 weeks, But it does not have the ability to improve their inflammatory indicators and create favorable changes in inflammatory indices, it is necessary to perform HIIT for more than 8 weeks and a period of 12 weeks will bring about favorable changes and It is likely to have an effective role in preventing middle-aged heart diseases.
R Rahimi; A Jalali
Abstract
َAim: In this study, the effect of green tea extract consumption on plasma Homocysteine (Hcy) and oxidized low-density lipoprotein (ox-LDL) was evaluated after acute resistance exercise in untrained men.
Method: For this purpose, 8 sedentary males (age 36.12±3.11 year; BMI 22.59±2.11kgm2) ...
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َAim: In this study, the effect of green tea extract consumption on plasma Homocysteine (Hcy) and oxidized low-density lipoprotein (ox-LDL) was evaluated after acute resistance exercise in untrained men.
Method: For this purpose, 8 sedentary males (age 36.12±3.11 year; BMI 22.59±2.11kgm2) randomly selected and, in a randomized, double-blind, placebo-controlled crossover study consumed green tea extract (two capsules of 500 mg per day) or placebo (2 capsules of 500 mg per day maltodextrin) for 2 weeks. After this period, they participated in resistance exercise that involves three sets with 75% of one repetition maximum (1RM) and 2 minutes rest between sets and exercises. Blood samples were collected from the brachial vein before and after the resistance exercise to determine the concentration of Hcy and ox-LDL.Results: The result of for ANOVA Repeated Measures showed significant differences in ox-LDL concentration in time and between conditions of green tea extract and placebo (P<0.05), Bonferroni post hoc test was used to check further evaluation, revealed a significant decrease in the concentration of ox-LDL immediately after resistance exercise in green tea compared with placebo (p<0.05) and t-test showed a significant increase in this index in pre-test compared to post-test in the placebo condition (p<0.01). In relation to serum concentration of Hcy, findings suggest a significant increase in this Index at post-test compared to pre-test only in terms of taking placebo (p<0.01).Conclusion: In general, the findings suggest a beneficial effect of 2 weeks green tea extract to prevent a significant increase in serum levels of ox-LDL after acute resistance exercise which is known as one of the key factors in the development of atherosclerosis. However, consumption of green tea extract did not have significant effect on serum Hcy concentration after acute resistance exercise.
