scholarly journals Does Growth Hormone Therapy in Conjunction With Resistance Exercise Increase Muscle Force Production and Muscle Mass in Men and Women Aged 60 Years or Older?

1999 ◽  
Vol 79 (1) ◽  
pp. 76-82 ◽  
Author(s):  
Jeffrey J Zachwieja ◽  
Kevin E Yarasheski
Keyword(s):  
Growth Hormone ◽  
Resistance Exercise ◽  
Hormone Therapy ◽  
Muscle Mass ◽  
Muscle Force ◽  
Growth Hormone Therapy ◽  
Force Production ◽  
Men And Women ◽  
Muscle Force Production

Anticipatory responses of catecholamines on muscle force production

2007 ◽  
Vol 102 (1) ◽  
pp. 94-102 ◽  
Author(s):  
Duncan N. French ◽  
William J. Kraemer ◽  
Jeff S. Volek ◽  
Barry A. Spiering ◽  
Daniel A. Judelson ◽  
...  
Keyword(s):  
Resistance Exercise ◽  
Muscle Force ◽  
Venous Blood ◽  
Area Under The Curve ◽  
Force Production ◽  
Blood Collection ◽  
Experimental Conditions ◽  
Few Data ◽  
Muscle Force Production

Few data exist on the temporal relationship between catecholamines and muscle force production in vivo. The purpose of this study was to examine the influence of preexercise arousal on sympathoadrenal neurohormones on muscular force expression during resistance exercise. Ten resistance-trained men completed two experimental conditions separated by 7 days: 1) acute heavy resistance exercise protocol (AHREP; 6 × 10 repetitions parallel squats, 80% 1 repetition maximum) and 2) control (Cont; rest). Peak force (Fpeak) was recorded during a maximal isometric squat preceding each set and mean force (Fmean) was measured during each set. Serial venous blood samples were collected before the AHREP and immediately preceding each set. Blood collection times were matched during Cont. Preexercise epinephrine (Epi), norepinephrine (NE), and dopamine (DA) increased ( P ≤ 0.05) above Cont by 270, 255, and 164%, respectively. During exercise, Epi, NE, and DA continued to increase by 512, 271, and 38%, respectively, above preexercise values. Fpeak and Fmean decreased by ∼20–25% over the course of the AHREP. Post hoc data analysis revealed that five subjects (Fmaintainers) showed no decline ( P ≥ 0.05) in muscular performance (Fpeak, Fmean) during AHREP and that five subjects (Freducers) had significant reductions in Fpeak and Fmean. Integrated area under the curve for Epi, NE, and Fpeak were greater ( P < 0.02) for Fmaintainers than Freducers. In conclusion, an anticipatory rise in catecholamines existed, which may be essential for optimal force production at the onset of exercise.

Does growth hormone therapy increase the frequency of tumor recurrence in children with brain tumors?

1987 ◽  
Vol 116 (3_Suppl) ◽  
pp. S188-S189 ◽  
Author(s):  
K.P. RODENS ◽  
S.L. KAPLAN ◽  
M.M. GRUMBACH ◽  
W.M. TELLER
Keyword(s):  
Growth Hormone ◽  
Brain Tumors ◽  
Hormone Therapy ◽  
Tumor Recurrence ◽  
Growth Hormone Therapy

Growth hormone therapy in a child with severe short stature due to Miller-McKusick-Malvaux (3M) syndrome-2

2019 ◽  
Author(s):  
Sumudu Seneviratne ◽  
Deepthi de Silva ◽  
Emily Cottrell ◽  
Piumi Kuruppu ◽  
KSH de Silva ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Hormone Therapy ◽  
Short Stature ◽  
Growth Hormone Therapy ◽  
Severe Short Stature
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