Afshar Jafari; Ali Zarghami Khameneh
Volume 3, Issue 2 , July 2014, , Pages 141-153
Abstract
Abstract
Aim: The aim of this study was to determine the effect of one-bout exhaustive resistance exercise on some muscular damage markers in serum of male volleyball players after different dosage of caffeine intake.
Method: Thirty male volleyball players (mean aged 21.47±1.45 years, fat 10.47±3.11 ...
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Abstract
Aim: The aim of this study was to determine the effect of one-bout exhaustive resistance exercise on some muscular damage markers in serum of male volleyball players after different dosage of caffeine intake.
Method: Thirty male volleyball players (mean aged 21.47±1.45 years, fat 10.47±3.11 % and BMI 23.15±1.26 kg.m2) in a randomized semi experiment and double-blind design were allocated in three groups: supplementing groups (with 6 and 9 mg.kg-1 caffeine) and placebo group (6 mg.kg-1 dextrose). After the supplementation, all subjects were participated in one-single-session resistance weight-training (with 80% of one repetition maximum until exhaustion). Changes in muscular damage indices (total serum CK and LDH) were determined in three phases (Baseline, immediately and 24 hours after the training protocol). The normal data were analyzed by repeated measure ANOVA and Bonferroni at P≤0.05.
Results: The results showed different dosage of caffeine intake had no significant effect on increased level of muscular damage serum enzymes immediately after exercise compared with the placebo group. Also, exhaustive resistance exercise increased levels of 24-hour CK and LDH significantly in all groups (P≤0.05). However, different dosage of caffeine intake had not effect on increased levels of muscle damage markers after 24 hours of exercise.
Conclusion: Based on the present findings and the execss intake of different dosage of caffeine probabley can not prevent further damage and in intraction with resistante exercise can not lead to escalation the indirect indices of muscle damage in compared with the placebo group.
Keywords: Resistance Exercise, Creatine kinase, Lactate dehydrogenase,
Caffeine
Afshar Jafari; Alireza Rostami; Vahid Sari-Sarraf
Volume 2, Issue 1 , April 2012
Abstract
Abstract
Aim: The aim of this study was to determin the effect of short-term Coenzyme Q10 supplementation on plasma lactate and serum total creatine kinase (CK) in healthy collegiate men after an aerobic exercise.
Method: Eighteen healthy untrained men (age 24±3 years, body fat 12±2%, and VO2max ...
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Abstract
Aim: The aim of this study was to determin the effect of short-term Coenzyme Q10 supplementation on plasma lactate and serum total creatine kinase (CK) in healthy collegiate men after an aerobic exercise.
Method: Eighteen healthy untrained men (age 24±3 years, body fat 12±2%, and VO2max 39±3 ml/kg/min) in a randomized and double-blind design were allocated in two equal groups: supplement group (n=9, Coenzyme Q10: 2.5 mg/kg/day) and placebo group (n=9, Dextrose: 2.5 mg/kg/day). After supplementation period, all subjects were participated in aerobic exercise protocol with 75% VO2max on the treadmill for 30 minutes. Blood samples obtained before the Q10 supplementation along with immediately before and after the exercise protocol, respectively. Plasma lactate and serum total creatine kinase were determined by automatic analyzers. Data were analyzed by repeated measure ANOVA, Bonferroni and independent t test at P≤0.05.
Results: The results show that short-term Coenzyme Q10 supplementation has no significant effect on basal parameters. However, plasma lactate and serum total CK were significantly increased (P
