SPORT NUTRITION

Athletes eat and train, they don’t diet and exercise

 

Colostrum – More effective than Whey?

SPORTS NUTRITION BENEFITS
  • Athlete’s supplementing with colostrum have shown strength and endurance gains superior to those in test groups supplementing with whey protein  
  • Colostrum has been shown to effectively build lean muscle mass. Growth factors in colostrum, such as insulin-like growth factor (IGF-1), epidermal growth factor (EGF), platelet-derived growth factor (PDGF) and transforming growth factor beta (TGF-β), have a significant impact on increases in lean body mass.
  • Growth factors in colostrum shift fuel utilization from carbohydrates to fat.  Natural growth factors in colostrum improve protein synthesis, which leads to an increase in lean muscle mass without a corresponding rise in adipose tissue.
  • High concentrations of immune modulating factors in colostrum boost immune function which typically dips after strenuous exercise. A properly functioning immune system will effectively shorten recovery time.
  • Colostrum‘s ability to repair a leaky gut ensures that athletes can utilize all the nutrients they take in.
  • The healing of an athletic injury, whether it involves bones, muscles, tendons, ligaments or other tissue, is influenced by numerous growth factors and cytokines which are naturally present in colostrum.
  • Colostrum accelerates collagen production which has a direct effect on building and healing the body’s many tissues
  • Colostrum can provide support for any athlete in maintaining his or her health during strenuous exercise as well as improving performance, body conditioning, injury repair, and recovery in response to the stress that heavy exercise places on the body.
SPORTS NUTRITION STUDYS/REFERENCES
  • Brinkworth GD, et al. (2004)  Effect of bovine colostrum supplementation on the composition of resistance trained and untrained limbs in healthy young men. European Journal or Applied Physiology 91(1);53-60.
  • ABSTRACT:  The tissue composition of resistance-trained limbs experienced a significantly greater increase in circumference and cross-sectional area in subjects taking colostrum (60 g/day for 8 weeks) than those taking whey protein.
  • 2.  Brinkworth GD & Buckley JD. (2004)  Concentrated bovine colostrum supplementation reduces the incidence of self-reported symptoms of upper respiratory tract infection in adult males. European Journal of Nutrition 42(4):228-32.
  • ABSTRACT:  This study provides preliminary evidence that concentrated bovine colostrum protein may enhance resistance to the development of symptoms of upper respiratory tract infections (URTI).
  • 3.  Buckley JD, et al. (2003)  Effect of bovine colostrum on anaerobic exercise performance and plasma insulin-like growth factor I.  Journal of Sports Science 21(7):57-88.
  • ABSTRACT:  Bovine colostrum supplementation during training significantly increased peak anaerobic power, but had no significant effect on alactic anaerobic work capacity, 1RM or plasma IGF-1.
  • 4.  Molloy T, et al.  (2003)  The roles of growth factors in tendon and ligament healing. Sports Med 33(5):381-94.
  • ABSTRACT:  Growth factors represent one of the most important of the molecular families involved in healing, and this review elucidates their many functions. This review covers IGF-1, TGF-b, VEGF, PDGF and FGF.
  • 5.  Sato K, et al.  (2003)  Improvement of muscle healing through enhancement of muscle regeneration and prevention of fibrosis. Muscle Nerve 28(3):365-72.
  • ABSTRACT: Skeletal muscle is able to repair itself through regeneration. However, an injured muscle often does not fully recover its strength because the process is hindered. IGF-1 can improve muscle healing and regeneration.
  • 6.  Buckley JD, et al. (2002)  Bovine colostrum supplementation during endurance running training improves recovery, but not performance. Journal of Science, Medicine and Sport 5(2):65-79.
  • ABSTRACT:  Supplementation with colostrum did not increase plasma IGF-1 levels or improve performance during an initial bout of running. However, performance during a second bout of exercise may be improved by as much as 5.2% in the average subject after 8 weeks of colostrum supplementation, possibly due to an enhancement of recovery.
  • 7.  Coombs JS, et al.  (2002)  Dose effects of oral bovine colostrum on physical work capacity in cyclists. Med Sci Sports Exercise 34(7):1184-8.
  • ABSTRACT:  Oral bovine colostrum supplementation at 20 grams or 60 grams per day provided an improvement in time trial performance in cyclists after a 2 hour ride at 65% VO2 max. Improvements in performance times were: 37 seconds faster for placebo group, 158 seconds faster for 60 g/d colostrum group and 134 seconds faster for 60 g/d colostrum group.
  • 8.  Mero A, et al. (2002)  IGF-I, IgA, and IgG responses to bovine colostrum supplementation during training. Journal of Applied Physiology 93(2):732-9. 
  • ABSTRACT:  Significant increases were noticed in serum IGF-1 and saliva IgA after bovine colostrum supplementation (20 g daily) during a 2 week training period.
  • 9.  Hofman Z, et al. (2002)  The effect of bovine colostrum supplementation on exercise performance in elite field hockey players. International Journal of Sports Nutrition and Exercise Metabolism 12(4):461-469.
  • ABSTRACT:  A double-blind, randomized, placebo controlled study on the effects of colostrum supplementation compared to milk whey on body composition and exercise performance of 17 female and 18 male elite field hockey players.  Results showed a significant increase in sprint test performance while vertical jump performance, body composition and endurance tests were similar in both experimental and test groups.
  • 10. Kuipers H, et al.  (2002)  Effects of oral bovine colostrum supplementation on serum insulin-like growth factor-I levels. Nutrition 18(7-8):566-7.
  • ABSTRACT:  Daily supplementation with 60 grams of bovine colostrum for 4 weeks does not change blood IGF-I level and does not elicit positive results on drug tests.
  • 11. Schmidmaier G, et al.  (2002) Improvement of fracture healing by systemic administration of growth hormone and local application of insulin-like growth factor-1 and transforming growth factor-beta1. Bone 31(1):165-72.
  • ABSTRACT:  Fracture healing is influenced by numerous hormones, growth factors, and cytokines. Local application of growth factors, such as insulin-like growth factor-1 (IGF-1) and transforming growth factor-beta-1 (TGF-beta1), are known to stimulate bone metabolism.
  • 12. Antonio J, et al. (2001)  The Effects of Bovine Colostrum Supplementation on Body Composition and Exercise Performance in Active Men and Women. Nutrition 17:243-247. 
  • ABSTRACT:  Supplementation with bovine colostrum (20 g/day) in combination with exercise training may increase bone-free lean body mass in active men and women. Study participants taking colostrum for eight weeks experienced a significant increase in lean body mass.
  • 13. Liang L, et al.  (2000)  Effect of cytokines on repair of tendon injury. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi (Chinese) 14(5):283-5.
  • ABSTRACT:  Cytokines possibly can accelerate tendon repair and show great potentials in future clinical application.
  • 14. Smeets R, et al.  (2000)  Oral supplementation with bovine colostrum improves sprint performance in elite field hockey players.  Presented at 23rd NSCA National Conference and Exhibition, Orlando.
  • ABSTRACT:  After 8 weeks of colostrum supplementation, elite field hockey players improved significantly in the 5 x 10 metres sprint compared to the whey group.
  • 15. Antonio J, (1998) Can Bovine Colostrum Enhance Levels of IGF-1? Muscle & Fitness. BODY BUILDING SCIENCE – From the Weider Research Group.
  • ABSTRACT:  Studies indicate that bovine colostrum supplementation can increase levels of IGF-1.
  • 16. Mero A, et al. (1997)  Effects of bovine colostrum supplementation on serum IGF-I, IgG, hormone, and saliva IgA during training. Journal of Applied Physiology 83(4):1144-51. 
  • ABSTRACT:  Bovine colostrum supplement may increase serum IGF-1 concentration in athletes during strength and speed training.
  • 17. Burke ER.  Colostrum as an Athletic Enhancer and Help for AIDS. Nutrition Science News, May, 1996.  A review article which discusses the role of colostrum in athletics as well as its benefits for AIDS patients.  With regard to athletics, the article focuses on the roles of growth hormones, specifically insulin-like growth factor (IGF-1), as well as epidermal growth factor (EGF), platelet-derived growth factor (PDGF) and transforming growth factor beta (TGF-β), in relation to muscle development in athletes.  It also discusses colostrum’s effect on leaky gut syndrome, a common problem in the general population, but of particular concern to athletes who perform at their best when they can utilize all the nutrients they take in.  It is hypothesized that “sealing” the leaky gut would increase energy levels and smooth out performance, especially for those athletes who experience irritable bowel syndrome as a result of incomplete digestion due to protein supplementation.
  • 18. Sparling PB, et al. (1993)  Selected scientific aspects of marathon racing. An update on fluid replacement, immune function, psychological factors and the gender difference. Sports Medicine 15(2):116-132.
  • ABSTRACT:  A review article examining four aspects of marathon racing: fluid replacement, immune function, psychological factors and gender difference.  Of interest is data which indicate that marathon runners have increased susceptibility to infectious disease following training and races.  This susceptibility can be reduced through proper nutrition, adequate sleep, sufficient recovery between workouts, and avoidance of exposure to sick people during periods of heavy training and competition.  It is shown that colostrum supplementation decreases recovery time as well as increases immune functioning, thus reducing this susceptibility for marathon runners and other athletes involved in strenuous exercise.
  • 19. Schwade, S.  (1992)  Insulin-like growth factors. Muscle & Fitness.
  • ABSTRACT:  This Potent Growth Stimulant Found in Mother’s Milk May Help Big Boys Grow Bigger.  Human muscle cells have a high affinity for IGF-1.
  • 20. Shawn, D. (1992, Aug). Ironman.
  • Article on positive effects of growth factors in bovine colostrum with weight lifting and athletic endurance.
  • 21. Bak JF, et al. (1991)  Effects of growth hormone on fuel utilization and muscle glycogen synthase activity in normal humans. American Journal of Physiology 260(5 pt 1):E736-E742.
  • ABSTRACT:  Growth hormone increases energy expenditures and inhibits glucose oxidation in favor of increased lipid (fat) oxidation. GH also inhibits insulin-mediated activation of the glycogen synthase in skeletal muscle biopsies.
  • 22. Berk LS, et al. (1990)  The effect of long endurance running on natural killer cells in marathoners. Medicine and Science in Sports and Exercise 22:207-212.
  • ABSTRACT:  Natural killer cells are lymphocytes which are specialized to seek out and kill foreign cells or infected host cells in a nonspecific manner.  They are important in both immunity and the body’s ability to eliminate cancerous cells before they become dangerous.  Studies were done on ten experienced marathon runners to see the effects of exercise on natural killer cell activity.  Natural killer cells were identified by means of surface markers characteristic of these cells.  Following three hours of exercise, natural killer cell activity was found to be markedly decreased at 1.5 and 6 hours post-exercise (as compared to pre-exercise levels), but at 21 hours the levels had returned to the pre-exercise levels.  This could indicate an increased susceptibility to infection following strenuous exercise.
  • 23. Nieman DC, et al. (1989)  Effects of long-endurance running on immune system parameters and lymphocyte function in experienced marathoners. Int J Sports Med. 10(5):317-23.
  • ABSTRACT:  Marathon runners showed significant changes in white blood cell counts after a 3 hour run, but most returned to normal levels after 21 hours (post-exercise).