فهرست مقالات lactate

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  1 - Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males
  Ebrahim Fallah
  10.61186/jspac.19871.1.1.21
  Background: The purpose of the present study is to investigate the effect of Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males Materials and Methods: We examined 35 resistance-t چکیده کامل

  Background: The purpose of the present study is to investigate the effect of Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males Materials and Methods: We examined 35 resistance-trained (1y) male participants (25±2y, 79.8±8.9 kg, 16.1±5.53% body fat) for 9-wk of L-carnitine supplementation in conjunction with resistance training on exercise performance, blood lactate, and exercise-induced oxidative stress. Randomized, placebo-controlled, double-blind treatment of a (1) no intervention, no supplement Control (CON, n=12), (2) maltodextrose Placebo (PLA, 2 g/d, n=11) or (3) L-carnitine (LCR, 2 g/d, n=12). Exercise performance, post-exercise blood lactate (BL) and oxidative stress markers were analyzed at weeks 3, 6, and 9. The PLA and LCR groups followed a specific resistance training program (4 d/w, upper body/lower body split) for a 9-wk. Data were analyzed by GLM and presented as mean (SD) or change (95% CI). Primary outcomes were total lifting volume for the bench (BP) and leg press (LP). Results: The results a significant increase in BP lifting volume at wk-6 (139 kg, 95% CI 49.1, 230) and wk-9 (238 kg, 95% CI 132, 343) for LCR. Similar results were observed for LP. We also observed a significant increase in Wingate mean power (63.4 W, 95% CI 30.5, 96.3) and peak power (239 W/kg, 95% CI 104, 374) at wk-9 for LCR as well as a significant reduction in post-exercise BL levels and oxidative stress responses. No differences were observed in body composition. Conclusion: These findings indicate that LCR supplementation improves exercise performance and attenuates the blood lactate and oxidative stress response to resistance training. پرونده مقاله
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  2 - Comparing the Recovery of Blood Lactate to Uchi- Komi Training in Male and Female judoka
  Fariborz  Sayyadoghly Mohammad Reza Fadaei CHafy
  Background: One of the reasons in judo fight is the accumulation of muscle lactate; therefore, searching for suitable method to reduce recovery time during competitions and comparing the recovery of male and female judo players is the aim of this research. Materials an چکیده کامل

  Background: One of the reasons in judo fight is the accumulation of muscle lactate; therefore, searching for suitable method to reduce recovery time during competitions and comparing the recovery of male and female judo players is the aim of this research. Materials and Methods: 17 judokas including nine men (age: 19.94±1.68, weight: 68.57±10.03 and height: 176.77±7.44) and eight women (age: 25.62±3.48, weight: 62.70±40.0 and height: 160.7±87.31), voluntarily participated in semi-experimental study. Subjects performed Uchi-kumi training until exhaustion in two separate sessions as two active and passive recoveries with a time interval of 48 hours. Blood lactate was measured before, immediately, 5 and 10 minutes after exercise. In passive recovery, subjects sat on a chair, and in active recovery, uchi-kumi training was performed without a training opponent. Data were analyzed by analysis of variance with repeated Measures and t-test. Results: After 5 minutes, lactate reduction was significant only in active recovery for men (P=0.001) and women (P=0.001); But in 10th minute of recovery, lactate reduction in both active states for men (P=0.001) and women (P=0.048) and passive states for men (P=0.001) and women (P=0.001) It was significant. In addition, the changes between men and women were similar in both cases. Conclusion: An increase in blood lactate after uchi kumi training was expected; however, passive recycling required at least 10 minutes. Therfore, 5 minutes of Uchi Kumi training without a training opponent, regardless of the effect of gender, accelerated the recovery and prepared the judokas to participate in the next competition. پرونده مقاله