Growth hormone and connective tissue in exercise

被引:26
作者
Doessing, S [1 ]
Kjaer, M [1 ]
机构
[1] Bispebjerg Hosp, Inst Sports Med, DK-2400 Copenhagen, Denmark
关键词
insulin-like growth factor-I; myofibrillar protein; collagen; doping; performance enhancing;
D O I
10.1111/j.1600-0838.2005.00455.x
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
Over the last few years, growth hormone (GH) has become increasingly popular as doping within different sports. However, the precise mechanisms behind the ergogenic (performance enhancing) effects of GH in athletes are still being debated. Besides a well-documented stimulatory effect of GH on carbohydrate and fatty acid metabolism, and a possible anabolic effect on myofibrillar muscle protein, we suggest a role for GH as an anabolic agent in connective tissue in human skeletal muscle and tendon. Given the importance of the connective tissue for the function of skeletal muscle and tendon, a strengthening effect of GH on connective tissue could fit with the ergogenic effect of GH experienced by athletes. This review examines the endogenous secretion of GH and its mediators in relation to exercise. Furthermore, we consider the effect of endogenous GH and administered recombinant human GH (rhGH) on both myofibrillar and connective tissue protein synthesis, thus offering an alternative explanation for the ergogenic effect of GH. Finally, we suggest a possible therapeutic role for rhGH in clinical management of the frequently suffered injuries in the connective tissue.
引用
收藏
页码:202 / 210
页数:9
相关论文
共 88 条
[71]   Physical capacity influences the response of insulin-like growth factor and its binding proteins to training [J].
Rosendal, L ;
Langberg, H ;
Flyvbjerg, A ;
Frystyk, J ;
Orskov, H ;
Kjær, M .
JOURNAL OF APPLIED PHYSIOLOGY, 2002, 93 (05) :1669-1675
[72]   The effect of 30 months of low-dose replacement therapy with recombinant human growth hormone (rhGH) on insulin and C-peptide kinetics, insulin secretion, insulin sensitivity, glucose effectiveness, and body composition in GH-deficient adults [J].
Rosenfalck, AM ;
Maghsoudi, S ;
Fisker, S ;
Jorgensen, JOL ;
Christiansen, JS ;
Hilsted, J ;
Volund, AA ;
Madsbad, S .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 2000, 85 (11) :4173-4181
[73]  
Rosenfeld RG, 1999, PEDIATRICS, V104, P1018
[74]   Acromegalic axial arthropathy: A clinical case-control study [J].
Scarpa, R ;
De Brasi, D ;
Pivonello, R ;
Marzullo, P ;
Manguso, F ;
Sodano, A ;
Oriente, P ;
Lombardi, G ;
Colao, A .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 2004, 89 (02) :598-603
[75]   Acute exercise has no effect on ghrelin plasma concentrations [J].
Schmidt, A ;
Maier, C ;
Schaller, G ;
Nowotny, P ;
Bayerle-Eder, M ;
Buranyi, B ;
Luger, A ;
Wolzt, M .
HORMONE AND METABOLIC RESEARCH, 2004, 36 (03) :174-177
[76]  
SMITH A, 1991, SPORTS ILLUSTRA 0101
[77]   Effect of exogenous growth hormone and exercise on lean mass and muscle function in children with burns [J].
Suman, OE ;
Thomas, SJ ;
Wilkins, JP ;
Mlcak, RP ;
Herndon, DN .
JOURNAL OF APPLIED PHYSIOLOGY, 2003, 94 (06) :2273-2281
[78]  
Verducci Tom, 2002, SPORTS ILLUSTRA 0603
[79]   Responses of the growth hormone (GH) and insulin-like growth factor axis to exercise, GH administration, and GH withdrawal in trained adult males:: A potential test for GH abuse in sport [J].
Wallace, JD ;
Cuneo, RC ;
Baxter, R ;
Orskov, H ;
Keay, N ;
Pentecost, C ;
Dall, R ;
Rosén, T ;
Jorgensen, JO ;
Cittadini, A ;
Longobardi, S ;
Sacca, L ;
Christiansen, JS ;
Bengtsson, BÅ ;
Sönksen, PH .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 1999, 84 (10) :3591-3601
[80]   Responses of markers of bone and collagen turnover to exercise, growth hormone (GH) administration, and GH withdrawal in trained adult males [J].
Wallace, JD ;
Cuneo, RC ;
Lundberg, PA ;
Rosén, T ;
Jorgensen, JOL ;
Longobardi, S ;
Keay, N ;
Sacca, L ;
Christiansen, JS ;
Bengtsson, BÅ ;
Sönksen, PH .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 2000, 85 (01) :124-133