Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2012.403.407KasharafifardSomayeh HojjatiSarah DaryanooshFarhad MehrabaniDavood Almasi-HashianiAmir VojdaniSalman TanidehNader AskarzadehAli RasouliOmid 82012158Regular physical exercises can affect hormonal system of female
athletes. This study evaluated the reproductive hormonal changes after an incremental
exercise in female rats. Forty female 2 months old Sprague Dawley rats (200±5
g) were randomly divided into 4 equal groups including group 1 as control, group
2 undergoing incremental exercise, group 3 receiving supplement soy milk and
group 4 undergoing incremental exercise together with a supplement of soy milk.
The incremental exercise consisted of running on a flatted treadmill 3 days/weak
for 10 weeks. The speed of treadmill gradually increased from 18 to 36 m min-1
and the duration of each exercise started from 5 min in the first week and reached
8 min in the last week of exercise. The supplemented soy milk was administered
for 10 weeks. After 10 weeks, animals were bled and the level of estrogen, progesterone,
Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH) were determined.
The LH level was statistically significant different between groups 1 and 2,
1 and 4, 2 and 3 (p<0.05) and groups 3 and 4 (p<0.05). FSH level was statistically
significant between groups 1 and 4 (p<0.05), 3 and 4 (p<0.05). Regarding
the estrogen level, the difference was not significant between the groups. Progesterone
level was statistically significant between groups 1 and 4, 2 and 3, 1 and 3
(p<0.05) and 2 and 4 (p<0.05). It may be said that changes in the sex
hormone are affected by various factors, but what should be considered is the
interaction of these hormones. Internal hormonal changes are dependent on the
sport history, intensity, duration, level and duration of soy milk supplementation.]]>Jasienska, G. and I. Thune,2001322586587Ives, S.J., M. Blegen, M.A. Coughlin, J. Redmond, T. Matthews and V. Paolone,201111116491658Lu, L.J., K.E. Anderson, J.J. Grady, F. Kohen and M. Nagamani,20006041124121Lu, L.J.W., K.E. Anderson, J.J. Grady and M. Nagamani,20018630453052Kaaks, R. and A. Lukanova,2002963268281Kalantaridou, S.N., A. Makrigiannakis, E. Zoumakis and G.P. Chrousos,2004626168Kalantaridou, S.N., E. Zoumakis, A. Makrigiannakis, L.G. Lavasidis, T. Vrekoussis and G.P. Chrousos,2010853339Karaca, Z., F. Tanriverdi, K. Unluhizarci and F. Kelestimur,2010162453475Keizer, H.A., J. Poortman and G.S. Bunnik,198048765769Latour, M.G., M. Shinoda and J.M. Lavoie,200190235241Ohtani, H., M. Nomoto and T. Douchi,2001900163168Park, S.J., L.T. Goldsmith and G. Weiss,2002227455464Shaw, N.D., S.N. Histed, S.S. Srouji, J. Yang, H. Lee and J.E. Hall,20109519551961Tromp, A.M., N. Bravenboer, E. Tanck, A. Oostlander and P.J. Holzmann et al.,200679404415Villalobos, C., L. Nunez, L.S. Frawley, J. Garcia-Sancho and A. Sanchez,1997941413214137Warren, M.P. and A.T. Chua,20081135244252Warren, M.P. and N.E. Perlroth2001170311Yeung, C.M., C.B. Chan, P.S. Leung and C.H.K. Cheng,20063814411449Zangeneh, F.Z.,200936976