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2015 | 09 | 1 |

Tytuł artykułu

Effect of deer antler velvet on aerobic, anaerobic and strength performance

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Deer antler velvet (DAV) supplementation purportedly increases athletic performance; however, little data support this claim. The primary aim of our study is to examine DAV and exercise performance. We randomized 32 men (18–35 y) participating exclusively in resistance training (>4 y) to 10-weeks of randomly assigned, double blind, DAV (1350 mg, 2×/day) or placebo treatments. Primary outcomes included maximal aerobic capacity (VO2max), maximal strength (1RM; bench press and squat) and anaerobic cycling power. Secondary outcomes included comprehensive blood profiles and body composition. We used general linear models to determine changes following treatment. Eighteen participants (n = 9) completed the study with DAV participants showing significant improvements in VO2max (4.30 ±0.45 to 4.72 ±0.60 L/min, P < 0.04). The placebo and DAV groups increased bench press and squat 1RM (both, P < 0.04); yet, when expressed relative to body mass, only the DAV group showed significant bench press (4%) and squat (10%; both, P < 0.02). Neither group improved cycling performance or showed adverse changes in blood chemistries. We did observe a significant reduction in LDL-C (12%) accompanying DAV supplementation and both groups significantly reduced percent body fat (P < 0.05). Our results suggest that DAV may have ergogenic effects in men participating solely in resistance training.

Wydawca

-

Rocznik

Tom

09

Numer

1

Opis fizyczny

p.17-28,fig.,ref.

Twórcy

  • Department of Health and Kinesiology, Texas A and M University, College Station, Texas, USA
  • Nutrabolt International, Bryan, Texas, USA
autor
  • A School of Kinesiology, Auburn University, Auburn, Alabama, USA
autor
  • Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, Florida, USA
autor
  • Exercising Nutritionally, Lisle, Illinois, USA

Bibliografia

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  • Costill D.L., Fink W.J. Plasma volume changes following exercise and thermal dehydration. J. Appl. Physiol. 1974; 37 (4): 521–525.
  • Francis S.M., Suttie J.M. Detection of growth factors and proto-oncogene mRNA in the growing tip of red deer (Cervus elaphus) antler using reverse-transcriptase polymerase chain reaction (RT-PCR). J. Exp. Zool. 1998; 281 (1): 36–42.
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  • Li C. Histogenetic aspects of deer antler development. Front Biosci. (Elite Ed). 2013; 5: 479–489.
  • Li C., Suttie J.M. Histological studies of pedicle skin formation and its transformation to antler velvet in red deer (Cervus elaphus). Anat. Rec. 2000; 260 (1): 62–71.
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  • Sadighi M., Haines S.R., Skottner A., Harris A.J., Suttie J.M. Effects of insulin-like growth factor-I (IGF-I) and IGF-II on the growth of antler cells in vitro. J. Endocrinol. 1994; 143 (3): 461–469.
  • Sale D.G. Neural adaptation to resistance training. Med. Sci. Sports Exerc. 1988; 20 (Suppl. 5): 135–145.
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  • Sleivert G., Burke V., Palmer C., Walmsley A., Gerrard D., Haines S., Littlejohn R. The effects of deer antler velvet extract or powder supplementation on aerobic power, erythropoiesis, and muscular strength and endurance characteristics. Int. J. Sport Nutr. Exerc. Metab. 2003; 13 (3): 251–265.
  • Suttie J.M., Fennessy P.F., Corson I.D., Laas F.J., Crosbie S.F., Butler J.H., Gluckman P.D. Pulsatile growth hormone, insulin-like growth factors and antler development in red deer (Cervus elaphus scoticus) stags. J. Endocrinol. 1989; 121 (2): 351–360.
  • Suttie J.M., Haines S.R. A review of dose level of deer velvet products in relation to efficacy. Gold Mountain. 2004.
  • Syrotuik D.G., MacFadyen K.L., Harber V.J., Bell G.J. Effect of elk velvet antler supplementation on the hormonal response to acute and chronic exercise in male and female rowers. Int. J. Sport Nutr. Exerc. Metab. 2005; 15 (4): 366–385.
  • Wang B.X., Zhao X.H., Qi S.B., Kaneko S., Hattori M., Namba T., Nomura Y. Effects of repeated administration of deer antler extract on biochemical changes related to aging in senescence-accelerated mice. Chem. Pharm. Bull. Tokyo 1988a; 36 (7): 2587–2592.
  • Wang B.X., Zhao X.H., Qi S.B., Yang X.W., Kaneko S., Hattori M., Namba T., Nomura Y. Stimulating effect of deer antler extract on protein synthesis in senescence-accelerated mice in vivo. Chem. Pharm. Bull. Tokyo 1988b; 36 (7): 2593–2598.
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Typ dokumentu

Bibliografia

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Identyfikator YADDA

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