The association of cardiorespiratory fitness, body mass index, and age with testosterone levels at screening of healthy men unde

#1 von Markus , 25.01.2019 22:19

Nicht das Alter senkt das T und in Folge sinken Fitness und steigen BMI sondern offenbar ist es genau umgedreht:

Mit dem Alter sinken Fitness und Muskelmasse (anabole Resistenz) bzw. steigt der Fettanteil/BMI und IN FOLGE dessen sinkt T....

The association of cardiorespiratory fitness, body mass index, and age with testosterone levels at screening of healthy men undergoing preventive medical examinations
Nc

Zitat
Highlights

Testosterone levels did not decline with age up to 80 years.
•Testosterone levels were inversely associated with body mass index.
•Testosterone levels were directly associated with cardiorespiratory fitness.
•Lower testosterone levels are not an inevitable consequence of aging.
Fitness may help to maintain normal testosterone levels at older age, when weight gain and chronic disease become more prevalent.

Abstract
Background

Currently, exogenous hormone replacement is used in many men with hypogonadism without clear organic cause. This study examines the contribution of modifiable health behaviors, i.e., physical activity and weight control, to the maintenance of testosterone levels with aging.
Methods

In a cross-sectional study of 2994 healthy men aged 50–79 years examined at a preventive medicine clinic from January 2012 to March 2016, screening morning total testosterone levels were measured and categorized as low (<250 ng/dL), low normal (250–399 ng/dL), and normal (>400 ng/dL). Cardiorespiratory fitness (fitness) was estimated from a maximal exercise treadmill test. Multiple logistic regression models were used to test the associations between low testosterone levels and age, body mass index (BMI), and fitness.
Findings

Mean testosterone levels were in the normal range for each age group (50–59, 60–69, and 70–79). There was a similar prevalence of low testosterone in each age group (11·3%, 10%, and 10·5%, respectively). The prevalence of low testosterone was positively associated with BMI and negatively associated with fitness but was not associated with age.
Interpretation

This study found no evidence that low testosterone is an inevitable consequence of aging. Maintenance of healthy weight and fitness may help maintain normal testosterone levels.





https://www.maturitas.org/article/S0378-...0424-9/abstract


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Markus
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zuletzt bearbeitet 25.01.2019 | Top

RE: The association of cardiorespiratory fitness, body mass index, and age with testosterone levels at screening of healthy men unde

#2 von Bernd , 27.01.2019 15:09

Hallo,

das deckt sich auch mit meinem pers. Wohlbefinden und der sportlichen Power. Auch ganz ohne Blutmessung etc., einfach fühlbar. Wenn ich etwas zugenommen habe ist bei mir danach auch etwas die Luft raus, in jeder Hinsicht, einfach eine gewisse Lustlosigkeit und Schlappheit. Ich mach dann meist eine knallharte Speedweek oder faste komplett 7 Tage und mit jedem Tag kommt mehr Power, Agilität und vor allem auch posit. Agressivität oder sagen wir Elan hinzu. Erstaunlicherweise auch regelmäßig ein Kraftschub.

Gruß Bernd


Bernd  
Bernd
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