Response of semen parameters to three training modalities

Vaamonde, Diana; Grigoletto, Marzo Edir Da Silva; García-Manso, Juan Manuel; Vaamonde-Lemos, Ricardo; Swanson, R. James; Oehninger, Sergio

doi:10.1016/j.fertnstert.2008.09.010

Cited by 137 publications

(89 citation statements)

References 39 publications

(28 reference statements)

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“…Once exercise is reduced, impairments seen within the reproductive system gradually recover. Similar research suggests that intensity and volume of exercise is negatively correlated to seminal quality, concluding that careful attention should be paid to these variables when designing training programmes to ensure reproductive function is not compromised [18,19].…”

Section: Introductionmentioning

confidence: 82%

A Preliminary Comparison of Semen Quality between Competing and Non-Competing Equine Stallions

Wilson¹,

Twigg-Flesner

2017

J Vet Sci Technol

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Rationale: Artificial insemination allows sport horse stallions within breeding programmes to breed and compete concurrently. The level of exercise of stallions complete during the breeding season is a controversial subject. Daily exercise at low intensities is important for the mental and reproductive well-being of the stallion, however higher intensities of exercise, as seen in competing stallions, may have detrimental effects on seminal quality. The purpose of this study was to gain a greater understanding into the effects of competition and discipline on equid stallion semen through analysis of seminal parameters. The identification of optimal competition management for breeding stallions may lead to increased stallion fertility and economic gain. Methods:This retrospective study evaluated the seminal data of 1130 stallion collections from two UK based stud farms between 2009 and 2015. Seminal volume, concentration and progressive motility were analysed for differences between competing and non-competing stallions, then for differences between stallion disciplines. Results:Competing stallion semen concentration and progressive motility was significantly lower than noncompeting stallions (p<0.05). Semen volume was significantly higher in competing stallions (p<0.05) than noncompeting stallions. Non-competing stallion semen count was significantly higher than that of competing stallions (p<0.05). Conclusion:The difference in semen quality between competing and non-competing stallions, as well as the difference between disciplines suggests endocrinological and physiological changes occur in relation to training intensity and competition. Further research into semen quality considering exercise and competition will allow for contextualisation as to why these differences occurred.

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Section: Introductionmentioning

confidence: 82%

A Preliminary Comparison of Semen Quality between Competing and Non-Competing Equine Stallions

Wilson¹,

Twigg-Flesner

2017

J Vet Sci Technol

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“…This aspect ought to receive priority, especially when dealing with elite athletes, in order not to compromise their fertility status [12]. Physicians and urologists should be aware that exercise (and in specific certain intensities and modalities such as bicycling) is a potential and valid cause of a variety of urological and andrological disorders affecting male reproduction [48].…”

Section: Resultsmentioning

confidence: 99%

“…Yet published findings regarding the effects of exercise on male fertility remain ostensibly ambiguous and contradictory. A number of studies did not show any changes in semen parameters between athletes [34][35][36], however, noteworthy effects have been reported by some researchers [12,13,[37][38][39][40]. Some of these findings will subsequently be discussed.…”

Section: Pathological and Clinical Proofmentioning

confidence: 88%

“…Sperm concentration/number, velocity, and morphology were significantly different among the participants of the three different training modalities. The parameter showing the greatest difference was morphology, even reaching clinical relevance for the triathlete group (<5% normal forms) [12,44].…”

Section: Pathological and Clinical Proofmentioning

confidence: 99%

“…Simultaneously, there has been a rapid increase in both participating in competitive sports as well as pursuing it as a professional career. Despite this global increased interest in exercising, an inadequate knowledge and ignorance regarding exercise routines can possibly lead to harmful side effects [12]. Some of the most common and noticeable illeffects of exercise are due to physical injuries *Address correspondence to this author at the Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio 44195, USA; Tel: 2164448182; Fax: 2164456049; E-mail: agarwaa@ccf.org † This research was conducted at the Cleveland Clinic's Center for Reproductive Medicine, Cleveland, Ohio.…”

Section: Introductionmentioning

confidence: 99%

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Is There a Link between Exercise and Male Factor Infertility?

Plessis¹,

Kashou²,

Vaamonde³

et al. 2011

TORSJ

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Abstract:The beneficial effects of physical exercise on general health are well known; however, as exercise imposes great physical stress that challenges homeostasis, it can be detrimental to certain organs/systems of the body when it is exhaustively performed. Decreased seminal parameters and sex hormone levels have been reported in male athletes and, therefore, a possible impairment of male fertility has been linked to exercise in a volume, intensity, and modality dependent-manner. Also, inherent characteristics of sportsmen (e.g. training level, adaptive capacity) may modify the response. This article aims to review the relevant literature regarding exercise and male factor infertility, while at the same time explores the possible underlying mechanisms that might be involved in this observable fact.

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