Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > The Journal of Sports Medicine and Physical Fitness 2011 September;51(3) > The Journal of Sports Medicine and Physical Fitness 2011 September;51(3):525-32

ULTIMO FASCICOLO
 

ARTICLE TOOLS

Estratti

THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,215


eTOC

 

ORIGINAL ARTICLES  OTHER AREAS
(Biochemistry, Immunology, Kinanthropometry, Neurology, Neurophysiology, Ophtalmology, Pharmacology, Phlebology, etc.)


The Journal of Sports Medicine and Physical Fitness 2011 September;51(3):525-32

Copyright © 2011 EDIZIONI MINERVA MEDICA

lingua: Inglese

Effect of aerobic exercise on insulin, insulin-like growth factor-1 and insulin-like growth factor binding protein-3 in overweight and obese postmenopausal women

Wieczorek-Baranowska A. 1, Nowak A. 1, Michalak E. 1, Karolkiewicz J. 1, Pospieszna B. 1, Rutkowski R. 2, Laurentowska1, M., Pilaczyńska-Szcześniak L. 1

1 Biochemistry and Hygiene, University School of Physical Education, Poznań, Poland; 2 Department of Physiotherapy, University School of Physical Education, Poznań, Poland


PDF  


AIM:The purpose of presented study was to verify the influence of aerobic physical activity program on the serum insulin, insulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3) concentrations in overweight and obese postmenopausal women.
METHODS: Somatic parameters and serum concentrations of insulin, IGF-1 and IGFBP-3 were measured in 21 overweight and obese women, before and after 8-week cycloergometer physical workout and 16 age-matched, controls. Age of all studied women ranged from 54 to 78 years.
RESULTS:The comparative analysis of biochemical indices measured before and after the training program showed that the systematic exercise cause the significant decrease in insulin (P<0.05) and IGF-1 concentrations (P<0.05). There were no differences in these parameters in controls over the studied period. The level of IGFBP-3 was not significantly changed in both investigated groups. In women participating in the training program the positive correlation (P<0.05) between changes in IGF-1 levels (Δ) and changes in insulin concentrations (Δ) within two terms of the study were found. The magnitude of changes (Δ) in insulin and IGF-1 levels over the study period correlated with their concentrations measured before the training program (P<0.01).
CONCLUSION:Results of the present study indicate that regular aerobic physical activity decreases serum insulin and IGF-1 levels in postmenopausal women. The magnitude of insulin and IGF-1 concentration changes depend on their initial levels. Changes of IGF-1 levels are associated with insulin concentration modifications.

inizio pagina

Publication History

Per citare questo articolo

Corresponding author e-mail

anowak@awf.poznan.pl