[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Indexing Sources::
Guide for Authors::
Online Submission::
Ethics::
Articles archive::
For Reviewers::
Contact us::
AI::
::
Basic and Clinical Biochemistry and Nutrition
..
DOAJ
..
CINAHL
..
EBSCO
..
IMEMR
..
ISC
..
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
enamad
..
:: Volume 21, Issue 4 (Bimonthly 2017) ::
Feyz Med Sci J 2017, 21(4): 345-351 Back to browse issues page
Relationship of serum lactate and glucose with oxygen saturation, heart rate and VO2max in response to L-carnitine during exhaustive exercise in active young men
Majid Kashef , Mohsen Shabani *
Department of Exercise Physiology, Faculty of Sports Sciences, Shahid Rajaee Teacher Training University, Tehran, I. R. Iran. , m.shabani1986@gmail.com
Abstract:   (3971 Views)
Background: The aim of this study was to investigate the relationship between the serum level of lactate and glucose with oxygen saturation, maximal heart rate and VO2max in response to L-carnitine during exhaustive exercise in young active men.
Materials and Methods: In this study, 10 young men (age: 26.4±0.96 years, height: 173.9±9.45 cm and weight: 71.8±5.36 kg) were participated. The subjects performed two sessions of the Bruce test. Serum levels of lactate, glucose, oxygen saturation (%SO2), VO2max, HRmax were recorded before, immediately and 4min after the exhaustive exercise.  
Results: The results showed that in the supplement group there was a significant relationship between the serum levels of lactate and VO2max 4min after the termination of the exercise. Also, there was a significant relationship between the serum levels of glucose and %SO2 immediately after the exercise (P<0.05). There was no significant relationship between the other factors.
Conclusions: According to the results of this study, the L-carnitine supplementation has positive effects on the relationship between serum levels of lactate with VO2max and serum levels of glucose and %SO2 immediately after the exhaustive exercise. So, the L-carnitine supplementation through increasing the exhaustion threshold has a significant effect on aerobic power in performing the intensive exhausting activities.
Keywords: L-carnitine, Lactate, Glucose, Oxygen saturation, VO2max, Exhaustive exercise
Full-Text [PDF 257 kb]   (2066 Downloads)    
Type of Study: Research | Subject: General
Received: 2016/07/16 | Revised: 2017/10/5 | Accepted: 2017/05/11 | Published: 2017/10/5
References
1. Benvenga S. Effects of L-carnitine on thyroid hormone metabolism and on physical exercise tolerance. Horm Metab Res 2005; 37(9): 566-71.
2. Novakova K, Kummer O, Bouitbir J, Stoffel SD, Hoerler-Koerner U, Bodmer M, et al. Effect of L-carnitine supplementation on the body carnitine pool, skeletal muscle energy metabolism and physical performance in male vegetarians. Eur J Nutr 2016; 55(1): 207-17.
3. Rafraf M, Karimi M, Jafari A. Effect of L-carnitine supplementation in comparison with moderate aerobic training on serum inflammatory parameters in healthy obese women. J Sports Med Phys Fitness 2015; 55(11): 1363-70.
4. Brass EP. Supplemental carnitine and exercise. Am J Clin Nutrition 2000; 72(2 Suppl): 618S-23S.
5. Borghi-Silva A, Baldissera V, Sampaio LM, Pires-DiLorenzo VA, Jamami M, Demonte A, et al. L-carnitine as an ergogenic aid for patients with chronic obstructive pulmonary disease submitted to whole-body and respiratory muscle training programs. Braz J Med Biol Res 2006; 39(4): 465-74.
6. Giamberardino MA, Dragani L, Valente R, Di Lisa F, Saggini R, Vecchiet L. Effects of prolonged L-carnitine administration on delayed muscle pain and CK release after eccentric effort. Int J Sports Med 1996; 17(5): 320-4.
7. Siliprandi N, Di Lisa F, Pieralisi G, Ripari P, Maccari F, Menabo R, et al. Metabolic changes induced by maximal exercise in human subjects following L-carnitine administration. Biochim Biophys Acta 1990; 1034(1): 17-21.
8. Bacurau RF, Navarro F, Bassit RA, Meneguello MO, Santos RV, Almeida AL, et al. Does exercise training interfere with the effects of L-carnitine supplementation? Nutrition 2003; 19(4): 337-41.
9. Stephens FB, Constantin-Teodosiu D, Greenhaff PL. New insights concerning the role of carnitine in the regulation of fuel metabolism in skeletal muscle. J Physiol 2007; 581(Pt 2): 431-44.
10. Eroglu H, Senel O, Guzel NA. Effects of acute L-carnitine intake on metabolic and blood lactate levels of elite badminton players. Neuro Endocrinol Lett 2008; 29(2): 261-6.
11. Wyss V, Ganzit GP, Rienzi A. Effects of L-carnitine administration on VO2max and the aerobic-anaerobic threshold in normoxia and acute hypoxia. Eur J Appl Physiol 1990; 60(1): 1-6.
12. Nourshahi M, Kaviani M, Kimiagar M, Ebrahim K. The effects of acute L-carnitine supplementation on anaerobic threshold and lactate accumulation during an incremental exercise. Iran J Nutr Sci & Food Technol 2009; 4(2): 45-52.
13. Galloway SD, Craig TP, Cleland SJ. Effects of oral L-carnitine supplementation on insulin sensitivity indices in response to glucose feeding in lean and overweight/obese males. Amino Acids 2011; 41(2): 507-15.
14. Orer GE, Guzel NA. The effects of acute L-carnitine supplementation on endurance performance of athletes. J Strength Cond Res 2014; 28(2): 514-9.
15. Parandak K, Arazi H, Khoshkhahesh F, Nakhostin-Roohi B. The effect of two-week L-carnitine supplementation on exercise-induced oxidative stress and muscle damage. Asian J Sports Med 2014; 5(2): 123-8.
16. Gamze EO, Nevin AG. The Effects of Acute L-Carnitine Supplementation on Endurance Performance of Athletes. J Strength Cond Res 2013.
17. Keller J, Ringseis R, Koc A, Lukas I, Kluge H, Eder K. Supplementation with l-carnitine downregulates genes of the ubiquitin proteasome system in the skeletal muscle and liver of piglets. Animal 2012; 6(1): 70-8.
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Kashef M, Shabani M. Relationship of serum lactate and glucose with oxygen saturation, heart rate and VO2max in response to L-carnitine during exhaustive exercise in active young men. Feyz Med Sci J 2017; 21 (4) :345-351
URL: http://feyz.kaums.ac.ir/article-1-3060-en.html


Creative Commons License
This open access journal is licensed under a Creative Commons Attribution-NonCommercial ۴.۰ International License. CC BY-NC ۴. Design and publishing by Kashan University of Medical Sciences.
Copyright ۲۰۲۳© Feyz Medical Sciences Journal. All rights reserved.
Volume 21, Issue 4 (Bimonthly 2017) Back to browse issues page
مجله علوم پزشکی فیض Feyz Medical Sciences Journal
Persian site map - English site map - Created in 0.06 seconds with 46 queries by YEKTAWEB 4710