فهرست مقالات Intensive exercise

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  1 - Changes of necdin concentration after a bout of intensive aerobic exercise in obese and lean men
  Ahmad Ahmadlu Afsaneh Khazari Zahra Momen Nasab
  Introduction: Necdin is an important negative regulator of white adipogenesis. The acute effect of aerobic exercise on necdin concentration is unclear; therefore the present study was conducted to determine the effects of a bout of intensive aerobic exercise on necdin c چکیده کامل

  Introduction: Necdin is an important negative regulator of white adipogenesis. The acute effect of aerobic exercise on necdin concentration is unclear; therefore the present study was conducted to determine the effects of a bout of intensive aerobic exercise on necdin concentration in obese and lean men. Material & Methods: Eighteen sedentary obese (Age: 21.7 ± 2.1 and BMI: 33.7 ± 2.1 kg/m2; ± SD, n = 9) and lean (Age: 20.5 ± 0.7 and BMI: 17.6 ± 1.6 kg/m2; ± SD, n = 9) men volunteered to participate in this study. All the subjects were performed the Bruce test as the intensive aerobic exercise. Blood samples were taken before and immediately after the intensive aerobic exercise. Results: No significant differences were observed at baseline in necdin concentration between obese and lean subjects (35.8 ± 24.2 vs. 21.9 ± 16.2 pg/ml; P = 0.2 respectively). After an intensive aerobic exercise necdin concentration increased significantly in the lean subjects (21.9 ± 16.2 to 65.9 ± 86.1 pg/ml; P = 0.01) however no significant changes were observed in the obese subjects (35.8 ± 24.2 to 36.9 ± 19.3 pg/ml; P = 0.5). The results revealed that necdin concentration was higher in the lean subjects in compare to the obese subjects (P = 0.03) in response to a bout of intensive aerobic exercise. Conclusion: The results of present study suggest that necdin concentration increases in response to acute aerobic exercise in lean subjects. Future studies are needed to examine the effect of exercise training on necdin levels in the obese subjects. پرونده مقاله
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  2 - Effect of a strenuous aerobic exercise on sdLDL concentration in healthy men
  Nooshin Khajeian
  Introduction: Clinical studies indicated that small dense LDL (sdLDL) levels are more powerful than LDL levels for the determination of severe stable coronary heart disease (CHD). The effects of intensive aerobic exercise on sdLDL levels are not well known; thus the aim چکیده کامل

  Introduction: Clinical studies indicated that small dense LDL (sdLDL) levels are more powerful than LDL levels for the determination of severe stable coronary heart disease (CHD). The effects of intensive aerobic exercise on sdLDL levels are not well known; thus the aim of present study was to investigate effect of a strenuous aerobic exercise on sdLDL concentration in healthy men. Material & Methods: Elevenhealthy young men (aged: 20.8 ± 1.8 years; ± SD) volunteered to participate in this study. All the subjects were performed Repeated High-Intensity Endurance Test (RHIET) as a strenuous aerobic exercise. Blood samples were taken at baseline and immediately after the RHIET. Wilcoxon and paired-sample t-test was used to analyze the data. Results: The results showed that sdLDL (38.8 ± 11.3 mg/dl vs. 39.9 ± 11.3 mg/dl), TC (188.6 ± 36.2 mg/dl vs. 194.1 ± 42.2 mg/dl), TG (139.6 mg/dl ± 55.0 vs. 157.7 ± 79.7 mg/dl), LDL (109.1 ± 33.4 mg/dl vs. 121.5 ± 53.0 mg/dl) and HDL (44.0 ± 13.6 mg/dl vs. 44.6 ± 14.0 mg/dl) remained unchanged in response to strenuous aerobic exercise. Significant correlation was observed between changes of sdLDL with TC (r = 0.74, P = 0.008), TG (r = 0.65, P = 0.02) and LDL (r = 0.64, P = 0.03) levels. Conclusions: The results suggest strenuous aerobic exercise had not significant effect on blood lipids and lipoprotein subfractions. پرونده مقاله
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  3 - The effects of intensive exercise after one night's sleep deprivation on muscle damage indexes in the male runners
  Sajad Arshadi Mehdi Noora
  Introduction: Sleep is generally considered to be a restorative process, having beneficial effects on physiological functions. Evidence suggests athletes worry about the effects of inadequate sleep on performance. The aim of present study was to examine the effects of i چکیده کامل

  Introduction: Sleep is generally considered to be a restorative process, having beneficial effects on physiological functions. Evidence suggests athletes worry about the effects of inadequate sleep on performance. The aim of present study was to examine the effects of intensive exercise after one night's sleep deprivation on muscle damage indexes in the male runners. Material & Methods: Twenty four collegiate male runners in Tehran volunteered to participate in this study as the subject. All the subjects, 72h days before sleep deprivation and after about 8 hours of complete sleep were performed intensive exercise. Three days later, after a 30 hours' sleep deprivation, intensive exercise were performed again. Blood samples were taken before the complete sleep or sleep deprivation and before and after the intensive exercise to measure serum creatine kinase (CK), lactate dehydrogenase (LDH) and Aspartate transaminase (AST). Results: The results indicated that serum CK, LDH and AST were higher in response to intensive exercise after the sleep deprivation in compare to the intensive exercise after the complete sleep. Conclusions: In summary, our results suggest that the sleep deprivation may lead to high levels of muscle damage enzymes and is may be impairs athletic performances. پرونده مقاله