Jorjani Biomedicine Journal
فصلنامه علمی پژوهشی زیست پزشکی جرجانی
Jorjani Biomed J
Medical Sciences
http://goums.ac.ir/jorjanijournal
1
admin
2645-3509
10.52547/jorjanibiomedj
en
jalali
1399
4
1
gregorian
2020
7
1
8
2
online
1
fulltext
en
The effect of resistance training with slow and fast speeds on some anabolic and catabolic hormones in healthy young women
بهداشت
Health
تحقیقی
Original article
<div style="text-align: justify;"><strong><em>Background and objective</em></strong>: Resistance training is a potential stimulus to increase muscle protein synthesis and the time under tension of muscle is one of the variables of strength training that contributes to its adaptation. The aim of this study was to investigate the effect of resistance training with slow and fast speeds on some anabolic and catabolic hormones in healthy young women. <br>
<strong><em>Material and Methods:</em></strong> This quasi- experimental study was conducted on 20 female students (mean age 21.65±2.03 years). The subjects were randomly and equally assigned to two groups with a time under tension of 1s-1s (fast contraction speed (FCS)) and 3s-3s (slow contraction speed (SCS)). The training load was the same in both groups and resistance training was done in a circular manner for six weeks, three days a week in eight stations. Blood samples were taken from the subjects to study the research variables before the training period and 48h after the last session of the training.<br>
<strong><em>Results:</em></strong> There was no significant difference between the serum levels of GH(P = 0.82), IGF-1(P = 0.13) and cortisol(P = 0.59) in both groups, but the levels of myostatin in the fast group increased and in the slow group decreased, and the difference between the two groups was significant (P = 0.04). Also, in the strength test, the slow group experienced further increased strength. (P = 0.02)<br>
<strong><em>Conclusion:</em></strong> : Although no significant changes in the levels of IGF-1, myostatin, and cortisol is observed in intragroup comparison at six weeks, resistance training with slow contraction speed can lead to further increases in the growth hormone levels and strength.</div>
Hormone,Muscle,Training,Strength,Contraction,Tension,
27
37
http://goums.ac.ir/jorjanijournal/browse.php?a_code=A-10-740-1&slc_lang=en&sid=1
Raziyeh
shiri
zshiri27@gmail.com
10031947532846006070
10031947532846006070
No
Department of Physical Education and Sport Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
mandana
gholami
gholami_man@yahoo.com
10031947532846006071
10031947532846006071
Yes
Department of Physical Education and Sport Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
Hojatolah
Nikbakht
Hojnik1937@yahoo.com
10031947532846006072
10031947532846006072
No
Department of Physical Education and Sport Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
khosrow
ebrahim
kebrahim@yahoo.com
10031947532846006073
10031947532846006073
No
Department of Physical Education and Sport Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran