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A Swimming-Induced Zebrafish Exercise Apparatus for Versatile Training Approaches
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Exploring the effect of exercise training on testicular function.

Bárbara Matos1,2, John Howl3, Rita Ferreira1

  • 1QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal.

European Journal of Applied Physiology
|September 10, 2018
PubMed
Summary

High-intensity exercise negatively impacts testicular function by decreasing testosterone and sperm parameters. Moderate exercise effects are unclear, but exercise training can protect against age-related decline, obesity, and doxorubicin treatment.

Keywords:
AgingHypothalamus–pituitary–gonadal axisObesityPhysical activityTestosterone

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Area of Science:

  • Endocrinology
  • Reproductive Biology
  • Exercise Physiology

Background:

  • Testicular function is crucial for male reproductive health.
  • The precise impact of exercise training on testicular function remains incompletely understood.
  • Existing research presents varied findings regarding exercise and male reproductive health.

Purpose of the Study:

  • To critically analyze existing human and animal studies on exercise training's effects on testicular function.
  • To provide new insights into the relationship between exercise and male reproductive health.
  • To evaluate the impact of different exercise parameters on the hypothalamus-pituitary-gonadal axis.

Main Methods:

  • Systematic review and critical analysis of published human and animal studies.
  • Evaluation of data concerning serum hormone levels (testosterone, LH, FSH) and sperm parameters.
  • Assessment of exercise type, intensity, and duration effects.

Main Results:

  • High-intensity exercise consistently decreases testosterone and sperm parameters, negatively affecting testicular function.
  • Published data on moderate-intensity exercise training show inconsistent effects on testicular function.
  • Exercise training consistently demonstrates benefits in preventing or counteracting testicular impairment from aging, obesity, and doxorubicin.

Conclusions:

  • Exercise intensity and duration significantly influence the hypothalamus-pituitary-gonadal axis and testicular function.
  • Moderate exercise's impact requires further investigation due to inconsistent findings.
  • Exercise training offers protective benefits against testicular dysfunction, likely via reduced oxidative stress and inflammation.