Metabolism and Exercise

The effect of 70 percent reduction in training load during the tapering on serum levels of cortisol , testosterone , the ratio of testosterone to cortisol and performance changes in trained swimmers

Aghaali Ghasemnian; ahmad azad; mohamadreza seraji vatan

Volume 12, Issue 2 , March 2022

https://doi.org/10.22124/jme.2023.23945.244

Abstract

Introduction: The purpose of this study was to determine the effect of 70percent reduction in training loade during the tapering on serum levels of cortisol, testosterone and performance ... Read More

The effect of resistance-aerobic training on the growth of muscle fibers, serum testosterone and androgen receptors on soleus muscles, in different ages groups of male rats

Mohammad Mahdi Bagherpour Tabalvandani; Mohammad Reza Fadaei; Alireza Elmieh

Volume 10, Issue 2 , October 2020

https://doi.org/10.22124/jme.2021.19982.217

Abstract

The aim of this study was to evaluate the effect of aerobic resistance training on the growth of muscle fibers, testosterone and androgen receptors in male rats of different age groups. ... Read More

The effect of 12 weeks high intensity interval training (HIIT) on testosterone, cortisol and lipid profile levels in obese and overweight boys

Alireza Paahoo; Vahid Tadibi; Naser Behpoor

Volume 5, Issue 1 , June 2015, , Pages 45-58

Abstract

Aim: Obesity and overweight along with metabolic disorders associated with them is one of the very important concerns in today’s world. According to the fact that chihdren and ... Read More

Effect of aerobic training on leptin and testosterone in obese boys’ serum at different pubertal stages

Mohammad Reza Fadaei chafy; Farhad Rahmani-Nia; Hamid Mohebbi; Saed Mohsen Maddah

Volume 4, Issue 1 , May 2014, , Pages 1-14

Abstract

Aim: The purpose of this study was to investigate the effects of aerobic exercise on leptin and testosterone in obese boys’ serum at different pubertal stages. Method: The cross-sectional ... Read More Aim: The purpose of this study was to investigate the effects of aerobic exercise on leptin and testosterone in obese boys’ serum at different pubertal stages. Method: The cross-sectional study had a pre-test- post-test design. The subjects included 36 obese boys aged 12 to 17 years, who according to the Tanner index, were in the stage of puberty of TS2 to TS5. The subjects were divided in to two groups, TS2, 3 (n=19, age: 13.4±0.94 years, Weight: 76.61±16.7 kg, BMI: 29.41±5.22 kg/m2) and TS4, 5 (n=17, age: 14.9±1.48 years, Weight: 93.57±16.48 kg, BMI: 30.92±3.88 kg/m2), each divided into aerobic exercise and control groups. After anthropometric measurements, fasting serum’s leptin and testosterone levels were measured. The aerobic exercise group completed 12 weeks of running, three times a week 30 minutes on average with an intensity of 60 to 85 percent of maximum heart rate. A pedometer was used to measure the level of physical activity and N4 software was used for measurement of energy intake. The statistical t-test, one-way and two-way ANOVA was used to analyze the data. Results: Lean body mass increased and body fat percent decreased significantly in aerobic exercise group at both stages of puberty (P≤0.05). In aerobic exercise group decrease in BMI and body fat, was only significant in TS4, 5 (P≤0.05). serum leptin levels decreased at different stages of puberty and was at only significant in aerobic exercise group (P≤0.05); but its changes in aerobic exercise and control groups at each stage of puberty wasn’t significant. Analysis of variance showed that puberty affects leptin changes (P≤0.05) but there was no significant difference between the effect of aerobic exercise on leptin decrease and changes in testosterone in both groups (TS4, 5 and TS2, 3 ) Conclusion: The results indicated that aerobic exercise in obese adolescent boys can lead to favorable changes in body composition, along with decreased serum’s leptin. However, part of these changes result from the normal maturation process that can lead to different responses to aerobic training, though due to the low number of subjects showing it about serum’s leptin, was not possible.

Acute effect of resistance exercise order on leptin and testosterone hormones in overweight men

Payman Salimi; Dariyosh Sheikholeslami Vatani

Volume 2, Issue 2 , July 2012, , Pages 165-176

Abstract

Abstract Aim: The aim of present study was to examine the influence of acute resistance exercise orders on response serum leptin and testosterone in overweight young men. Method: ... Read More Abstract Aim: The aim of present study was to examine the influence of acute resistance exercise orders on response serum leptin and testosterone in overweight young men. Method: Fourteen young men (mean age: 21.36±1.25 years and BMI: 27.95±1.88 kg/m2) were selected randomly and completed two sessions of resistance exercise.The Exercise protocol consisted of two different protocols ]protocol A: from large to small muscles (Leg press, bench press, Lat Pull-down, overhead press, biceps curl, triceps extension (and Protocol B: from small to large muscles (Reverse Sequence of protocol B [(and with %85 of one repetition maximum (1RM) were done. For this purpose in first session randomly, half of the subjects performed protocol A and the other subjects completed the protocol B. One and two minutes rest intervals were set between sets and exercises movement, respectively. One week after, in the second session, subject’s protocols were contrary. Blood samples were collected before the exercise, immediately and 30 minutes after each exercise protocol. Hormone measurements were performed using radio immune-assay (RIA). Results: By using ANOVA with repeated measure (within and between subject effects) the results indicated that serum leptin concentrations in both protocols, was decreased significantly immediately and 30 minutes after exercise (P≤0.05). So, the testosterone concentration decreased significantly immediately (protocol B) and 30 minutes after exercise (in both protocol) (P≤0.05). While, there was no differences between sessions for leptin and testosterone. Moreover, there was correlation between leptin and testosterone in order B and not in order A (P≤0.05). Conclusion: Overall findings showed that the large or small muscles order used at the beginning of the exercise do not affect on the secretion hormone leptin and testosterone. Although, more research is needed to prove the link between these two hormones. Key words: Exercise order, Leptin, Testosterone, Acute resistance exercise

The effect of progressive interval training on serum testosterone to cortisol ratio in elite male karate athletes

Majid Baghdarnia; Hojatallah Nikbakht; Mohammadali Azarbayjani

Volume 1, Issue 1 , April 2011, , Pages 51-60

Abstract

AbstractAim: The purpose of this study was to examine the effects of progressive interval training on serum testosterone to cortisol ratio in elite male karate athletes. Method: Fourteen ... Read More

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Keywords = testosterone

The effect of 70 percent reduction in training load during the tapering on serum levels of cortisol , testosterone , the ratio of testosterone to cortisol and performance changes in trained swimmers

Abstract

The effect of resistance-aerobic training on the growth of muscle fibers, serum testosterone and androgen receptors on soleus muscles, in different ages groups of male rats

Abstract

The effect of 12 weeks high intensity interval training (HIIT) on testosterone, cortisol and lipid profile levels in obese and overweight boys

Abstract

Effect of aerobic training on leptin and testosterone in obese boys’ serum at different pubertal stages

Abstract

Acute effect of resistance exercise order on leptin and testosterone hormones in overweight men

Abstract

The effect of progressive interval training on serum testosterone to cortisol ratio in elite male karate athletes

Abstract