scholarly journals Intramuscular anabolic signaling and endocrine response following high volume and high intensity resistance exercise protocols in trained men

2015 ◽  
Vol 3 (7) ◽  
pp. e12466 ◽  
Author(s):  
Adam M. Gonzalez ◽  
Jay R. Hoffman ◽  
Jeremy R. Townsend ◽  
Adam R. Jajtner ◽  
Carleigh H. Boone ◽  
...  
2016 ◽  
Vol 116 (9) ◽  
pp. 1663-1670 ◽  
Author(s):  
Adam M. Gonzalez ◽  
Jay R. Hoffman ◽  
Jeremy R. Townsend ◽  
Adam R. Jajtner ◽  
Carleigh H. Boone ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Jeremy R. Townsend ◽  
Jay R. Hoffman ◽  
Adam M. Gonzalez ◽  
Adam R. Jajtner ◽  
Carleigh H. Boone ◽  
...  

Objective. To examine the endocrine response to a bout of heavy resistance exercise following acuteβ-hydroxy-β-methylbutyrate free acid (HMB-FA) ingestion.Design. Twenty resistance trained men were randomized and consumed either 1 g of HMB-FA (BetaTor) or placebo (PL) 30 min prior to performing an acute heavy resistance exercise protocol. Blood was obtained before (PRE), immediately after (IP), and 30 min after exercise (30P). Circulating concentrations of testosterone, growth hormone (GH), insulin-like growth factor (IGF-1), and insulin were assayed. Data were analyzed with a repeated measures ANOVA and area under the curve (AUC) was analyzed by the trapezoidal rule.Results. The resistance exercise protocol resulted in significant elevations from PRE in testosteroneP<0.01, GHP<0.01, and insulinP=0.05at IP, with GHP<0.01and insulinP<0.01remaining elevated at 30P. A significant interaction was noted between groups in the plasma GH response at IP, which was significantly higher following HMB-FA compared to PLP<0.01. AUC analysis revealed an elevated GH and IGF-1 response in the HMB-FA group compared to PL.Conclusion. HMB-FA prior to resistance exercise augments the GH response to high volume resistance exercise compared to PL. These findings provide further support for the potential anabolic benefits associated with HMB supplementation.


2016 ◽  
Vol 48 ◽  
pp. 393-394 ◽  
Author(s):  
Adam J. Wells ◽  
Jay R. Hoffman ◽  
Adam R. Jajtner ◽  
Alyssa N. Varanoske ◽  
David D. Church ◽  
...  

2017 ◽  
Vol 117 (7) ◽  
pp. 1287-1298 ◽  
Author(s):  
Sandro Bartolomei ◽  
Eliahu Sadres ◽  
David D. Church ◽  
Eliott Arroyo ◽  
Joseph A. Gordon III ◽  
...  

2016 ◽  
Vol 48 (6) ◽  
pp. 1169-1178 ◽  
Author(s):  
ADAM J. WELLS ◽  
JAY R. HOFFMAN ◽  
ADAM R. JAJTNER ◽  
ALYSSA N. VARANOSKE ◽  
DAVID D. CHURCH ◽  
...  

1999 ◽  
Vol 31 (Supplement) ◽  
pp. S166
Author(s):  
Todd A. Crowder ◽  
Mark A. Rice ◽  
Nancy C. Jensen

2016 ◽  
Vol 30 (7) ◽  
pp. 1917-1923 ◽  
Author(s):  
Carleigh H. Boone ◽  
Jay R. Hoffman ◽  
Adam M. Gonzalez ◽  
Adam R. Jajtner ◽  
Jeremy R. Townsend ◽  
...  

2016 ◽  
Vol 48 ◽  
pp. 17
Author(s):  
Adam Gonzalez ◽  
Jay R. Hoffman ◽  
Jeremy R. Townsend ◽  
Adam R. Jajtner ◽  
Carleigh H. Boone ◽  
...  

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