Influence of aerobic versus anaerobic exercise on the relationship between reproductive hormones in men

Hackney, A. C.; Premo, Mary Claire; McMurray, Robert G.

doi:10.1080/02640419508732244

Cited by 82 publications

(61 citation statements)

References 23 publications

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“…In contrast, short-term, anabolic exercise often causes acute increases in testosterone levels (Cumming et al, 1986(Cumming et al, , 1987Hackney et al, 1995). Moreover, nutritional supplementation in conjunction with anabolic exercise augments androgen rises in healthy men (Chandler et al, 1994).…”

Section: Energetic Expenditurementioning

confidence: 99%

Reproductive ecology and life history of the human male

Bribiescas

2001

Am. J. Phys. Anthropol.

211

117

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Until recently, the reproductive ecology of human males has not been extensively investigated, primarily as a result of the need for a theoretical framework based on the reproductive constraints and energetics of mammalian males. More specifically, male reproductive ecology has necessitated an integrative interpretation of clinical and anthropological data based on the premise that the evolution of human male life histories has involved selection for physiological mechanisms aimed at optimizing trade-offs between survivorship and reproductive effort. This paper attempts to address this gap in our understanding by presenting the current state of male reproductive ecology, including physiologic data from clinical and anthropological investigations as well as recent theoretical developments. Recent investigations outlining population variation in reproductive endocrine function are discussed within the context of potential sources of variation, including energetic expediture, caloric intake, and developmental canalization during adolescence. Additional summaries of male senescence and behavior are presented to provide a complete overview of male life history. Implications of recent anthropological data on contemporary health issues such as prostate cancer and the development of a male contraceptive are also discussed. Finally, several theories are presented that may contribute to our understanding of the evolution of male life histories and reproductive ecology, including theoretical suggestions involving the role of competition, mate choosiness, and potential constraints on male insemination ability, as well as a theory suggesting that male reproductive ecology may be best understood by analyzing energetic allocation decisions between differing somatic tissues that may be indicative of the competing needs for optimizing survivorship and reproductive effort. Directions for future research are finally considered.

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Section: Energetic Expenditurementioning

confidence: 99%

Reproductive ecology and life history of the human male

Bribiescas

2001

Am. J. Phys. Anthropol.

211

117

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“…However, while aerobic and anaerobic forms of exercise are commonly compared relative to biochemical [24][25][26][27][28][29] and hormonal [27,28,30,31] markers of performance, direct comparisons of their relative contributions to cardiac health are surprisingly lacking.…”

Section: Introductionmentioning

confidence: 99%

Exercise and lifestyle predictors of resting heart rate in healthy young adults

Nealen

2016

jhse

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Physical exercise is well-understood to provide significant health benefits, through physiological adaptations induced by the repeated exertion stress exercise imposes on our systems. Chief among these are cardiovascular adaptations to exercise, including adjustments of cardiac parameters such as stroke volume, heart rate, and maximal cardiac output. It is commonly assumed that aerobic forms of exercise provide greater cardiovascular benefits than do non-aerobic forms of exercise. To test this assumption, exercise habits and resting heart rate were examined in a large population of healthy young adults. 90% of subjects reported regular physical exercise, with aerobic exercise constituting 64% of all exercise hours. Subjects with a history of smoking exhibited higher resting heart rates than those with no smoking history, an effect which was due primarily to a reduction in exercise hours by smokers than due to a smoking habit itself. While both total exercise amount and aerobic exercise amount were significantly and negatively related to resting heart rate, total exercise amount was a better overall predictor of resting heart rate than was aerobic exercise amount. All forms of exercise were associated with cardiovascular health, with cardiovascular benefits accruing according to the amount of exercise performed, even in optimally healthy young adults.

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“…The D+AT group did show an increase in testosterone concentrations in men relative to the D+ST group, when tested more than 48 h after the last exercise session. Other studies of increases in testosterone levels during aerobic exercise report that these effects are transient [15,16] . However, Grandys et al [24] reported a rise in circulating testosterone levels, measured more than 24 h after exercise, following a 5-wk aerobic training program.…”

Section: Discussionmentioning

confidence: 92%

“…Previous studies have shown that both aerobic and anaerobic exercise can increase testosterone levels [16] , but differences in the beta-adrenergic effects between resistance training and aerobic exercise [16] may have led to up-regulation of beta-adrenergic receptors and increased hepatic testosterone intake, decreasing circulating testosterone levels in the D+ST group in comparison to the D+AT group. In addition, Hackney et al [15] showed that resistance, but not aerobic, training disrupts the relationship between luteinizing hormone (LH) and testosterone production. Also, Nindl et al [26] found a decrease in the production of LH and Diet Plus Exercise Versus Diet Only a subsequent decline in overnight testosterone concentrations after resistance training.…”

Section: Discussionmentioning

confidence: 99%

“…Low circulating levels of testosterone have been correlated with the presence of metabolic syndrome factors and type 2 diabetes [14] , while exogenous testosterone has been shown to reduce body fat and improve biochemical components of the metabolic syndrome [13] . Furthermore, studies [15,16] have shown that aerobic training increases testosterone, albeit transiently. In men, changes in testosterone levels, and indirectly weight loss and metabolic risk factors, may be related to the type of exercise program (strength vs. aerobic).…”

Section: Obesity-related Hormones and Metabolic Risk Factors: A Randomentioning

confidence: 99%

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http://www.ommegaonline.org/article-details/Obesity-Related-Hormones-and-Metabolic-Risk-Factors--A-Randomized-Trial-of-Diet-Plus-Either-Strength-or-Aerobic-Training-versus-Diet-Alone-in-Overweight-Participants/186

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Abstract:There is debate about the additive effects of exercise in conjunction with diet to treat obesity, and not much is known about the differential effects of strength versus aerobic training. This randomized controlled trial examined the effects of diet plus strength training, diet plus aerobic training, or diet only on metabolic risk factors associated with obesity. Eighty-one overweight and obese participants completed the 8-week intervention. All participants received an energy-restrictive formula diet with an energy content based on 70% of measured resting metabolic rate (RMR). Participants assigned to an exercise group trained 3 days/week under supervision. Anthropometrics and fasting hormones were assessed pre-and post-intervention. Mean weight loss (8.5 ± 4.3kg SD) did not differ between groups nor did reductions in BMI or body fat, although the diet plus strength training group showed marginally greater lean mass retention. There were significant improvements in the values and number of metabolic syndrome risk factors, and decreases in insulin concentrations and insulin resistance, which did not vary between groups. For men, testosterone increased significantly more in the diet plus aerobic training as compared to the other groups. As compared to diet alone, the addition of strength or aerobic training did not improve changes in BMI, body fat, or metabolic risk factors although the diet plus strength training group showed a trend toward preservation of lean mass, and the diet plus aerobic group in men resulted in increased testosterone.

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Influence of aerobic versus anaerobic exercise on the relationship between reproductive hormones in men

Cited by 82 publications

References 23 publications

Reproductive ecology and life history of the human male

Reproductive ecology and life history of the human male

Exercise and lifestyle predictors of resting heart rate in healthy young adults

http://www.ommegaonline.org/article-details/Obesity-Related-Hormones-and-Metabolic-Risk-Factors--A-Randomized-Trial-of-Diet-Plus-Either-Strength-or-Aerobic-Training-versus-Diet-Alone-in-Overweight-Participants/186

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