Greater male variability in daily energy expenditure develops through puberty
There is considerably greater variation in metabolic rates between men than between women, in terms of basal, activity and total (daily) energy expenditure (EE). One possible explanation is that EE is associated with male sexual characteristics (which are known to vary more than other traits) such as musculature and athletic capacity. Such traits might be predicted to be most prominent during periods of adolescence and young adulthood, when sexual behaviour develops and peaks. We tested this hypothesis on a large dataset by comparing the amount of male variation and female variation in total EE, activity EE and basal EE, at different life stages, along with several morphological traits: height, fat free mass and fat mass. Total EE, and to some degree also activity EE, exhibit considerable greater male variation (GMV) in young adults, and then a decreasing GMV in progressively older individuals. Arguably, basal EE, and also morphometrics, do not exhibit this pattern. These findings suggest that single male sexual characteristics may not exhibit peak GMV in young adulthood, however total and perhaps also activity EE, associated with many morphological and physiological traits combined, do exhibit GMV most prominently during the reproductive life stages.
| Errataetall: |
ErratumIn: Biol Lett. 2023 Nov;19(11):20230482. - PMID 37909701 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:19 |
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| Enthalten in: |
Biology letters - 19(2023), 9 vom: 04. Sept., Seite 20230152 |
| Sprache: |
Englisch |
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| Links: |
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Age |
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| Anmerkungen: |
Date Completed 21.09.2023 Date Revised 06.03.2024 published: Print-Electronic figshare: 10.6084/m9.figshare.c.6832989 ErratumIn: Biol Lett. 2023 Nov;19(11):20230482. - PMID 37909701 Citation Status MEDLINE |
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| doi: |
10.1098/rsbl.2023.0152 |
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| 245 | 1 | 0 | |a Greater male variability in daily energy expenditure develops through puberty |
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| 500 | |a Date Revised 06.03.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a figshare: 10.6084/m9.figshare.c.6832989 | ||
| 500 | |a ErratumIn: Biol Lett. 2023 Nov;19(11):20230482. - PMID 37909701 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a There is considerably greater variation in metabolic rates between men than between women, in terms of basal, activity and total (daily) energy expenditure (EE). One possible explanation is that EE is associated with male sexual characteristics (which are known to vary more than other traits) such as musculature and athletic capacity. Such traits might be predicted to be most prominent during periods of adolescence and young adulthood, when sexual behaviour develops and peaks. We tested this hypothesis on a large dataset by comparing the amount of male variation and female variation in total EE, activity EE and basal EE, at different life stages, along with several morphological traits: height, fat free mass and fat mass. Total EE, and to some degree also activity EE, exhibit considerable greater male variation (GMV) in young adults, and then a decreasing GMV in progressively older individuals. Arguably, basal EE, and also morphometrics, do not exhibit this pattern. These findings suggest that single male sexual characteristics may not exhibit peak GMV in young adulthood, however total and perhaps also activity EE, associated with many morphological and physiological traits combined, do exhibit GMV most prominently during the reproductive life stages | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a height | |
| 650 | 4 | |a inter-individual variation | |
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