Effect of Treadmill Exercise on Circulating Thyroid Hormone Measurements

Huang, Wen Sheng; Yu, Ming Der; Lee, Meei Shyuan; Cheng, Cheng Yi; Yang, Sung‐Pei; Chin, Hei Min Linda; Wu, Sing Yung

doi:10.1159/000074045

Cited by 30 publications

(27 citation statements)

References 15 publications

(39 reference statements)

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“…In Huang et al (2004) research, Twenty-six healthy male military recruits aged 23 to 27 years with a mean of 25 years have been studied. All subjects had maintained identical diet and physical activity for a week before the test.…”

Section: Resultsmentioning

confidence: 99%

“…No significant changes of serum mean TH values before and after exercise have been found except for TSH, which had increased significantly immediately after exercise (1.72 vs. baseline 1.42 IU/L, p < 0.01). They have reported that maximal treadmill exercise had not greatly affected the determination of concentrations of circulating THs (Huang et al, 2004).…”

Section: Resultsmentioning

confidence: 99%

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The effects of maximal aerobic exercise on cortisol and thyroid hormones in male field hockey players

Beyleroğlu¹

2011

Afr. J. Pharm. Pharmacol.

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Some metabolic and endocrine functions might be influenced by exercise and it leads to changed concentrations of hormone secretions in humans. In order to determine the changes of thyroid hormones (THs) related to shuttle run exercise (SRE), 14 field hockey players and their thyroid stimulating hormones (TSH) free T3 (fT3), free T4 (fT4) were included in this study, and cortisol levels were measured three times; before the exercise, just after the exercise and one hour later after exercise. The results of this study showed that there were no statistically significant differences among three measurements in the serum levels of TSH and thyroid hormones. However, both fT3 and TSH were significantly decreased in one hour later after exercise, whereas no change was observed in fT4. Cortisol concentrations were slightly increased immediately after SRE. In conclusion, serum levels of thyroid stimulating hormone and thyroid hormones were affected by maximal aerobic exercise.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The effects of maximal aerobic exercise on cortisol and thyroid hormones in male field hockey players

Beyleroğlu¹

2011

Afr. J. Pharm. Pharmacol.

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“…From a large number of studies exploring the relationship between exercise and testosterone, no definite conclusion can be drawn [12][13][14]. Bosco et al [15] reported that short-term strenuous exercise increased total and free testosterone levels by 12% and 13%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zinc and Selenium Supplementation on Serum Testosterone and Plasma Lactate in Cyclist After an Exhaustive Exercise Bout

Neek

Gaeini

Choobineh

2011

Biol Trace Elem Res

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Zinc and selenium are essential minerals and have roles for more than 300 metabolic reactions in the body. The purpose of this study was to investigate how exhaustive exercise affects testosterone levels and plasma lactate in cyclists who were supplemented with oral zinc and selenium for 4 weeks. For this reason, 32 male road cyclists were selected equally to four groups: PL group, placebo; Zn group, zinc supplement (30 mg/day); Se group, selenium supplement (200 μg/day); and Zn-Se group, zinc-selenium supplement. After treatment, free, total testosterone, and lactate levels of subjects were determined before and after exhaustive exercise. Resting total, free testosterone, and lactate levels did not differ significantly between groups, and were increased by exercise (P > 0.05). Serum total testosterone levels in Zn group were higher than in Se group after exercise (P < 0.05). Serum-free testosterone levels in the Zn group were higher than the other groups (P < 0.05).There was an insignificant difference between levels of lactate in the four groups after exercise (P > 0.05). The results showed that 4-week simultaneous and separately zinc and selenium supplementation had no significant effect on resting testosterone and lactate levels of subjects who consume a zinc and selenium sufficient diet. It might be possible that the effect of zinc supplementation on free testosterone depends on exercise.

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“…At the same time, leptin and cytokines secreted from fat tissues affect the levels of cortisone, testosterone, thyroid, and growth hormones [2,3]. In various studies investigating the relationship between exercise and hormones, different results were obtained [4][5][6].…”

Section: Discussionmentioning

confidence: 99%

“…From a large number of studies exploring the relationship between exercise and hormones, no definite conclusion can be drawn [4][5][6]. Short-term strenuous exercise increased total and free testosterone levels by 12% and 13%, respectively [7].…”

Section: Introductionmentioning

confidence: 99%

Effects of Magnesium Supplementation on Testosterone Levels of Athletes and Sedentary Subjects at Rest and after Exhaustion

Çınar

Polat

Baltacı

et al. 2010

Biol Trace Elem Res

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This study was performed to assess how 4 weeks of magnesium supplementation and exercise affect the free and total plasma testosterone levels of sportsmen practicing tae kwon do and sedentary controls at rest and after exhaustion. The testosterone levels were determined at four different periods: resting before supplementation, exhaustion before supplementation, resting after supplementation, and exhaustion after supplementation in three study groups, which are as follows: Group 1-sedentary controls supplemented with 10 mg magnesium per kilogram body weight. Group 2-tae kwon do athletes practicing 90-120 min/day supplemented with 10 mg magnesium per kilogram body weight. Group 3-tae kwon do athletes practicing 90-120 min/day receiving no magnesium supplements. The free plasma testosterone levels increased at exhaustion before and after supplementation compared to resting levels. Exercise also increased testosterone levels relative to sedentary subjects. Similar increases were observed for total testosterone. Our results show that supplementation with magnesium increases free and total testosterone values in sedentary and in athletes. The increases are higher in those who exercise than in sedentary individuals.

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Effect of Treadmill Exercise on Circulating Thyroid Hormone Measurements

Cited by 30 publications

References 15 publications

The effects of maximal aerobic exercise on cortisol and thyroid hormones in male field hockey players

The effects of maximal aerobic exercise on cortisol and thyroid hormones in male field hockey players

Effect of Zinc and Selenium Supplementation on Serum Testosterone and Plasma Lactate in Cyclist After an Exhaustive Exercise Bout

Effects of Magnesium Supplementation on Testosterone Levels of Athletes and Sedentary Subjects at Rest and after Exhaustion

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