scholarly journals Association of Amount of Physical Activity With Cortical Bone Size and Trabecular Volumetric BMD in Young Adult Men: The GOOD Study

2005 ◽  
Vol 20 (11) ◽  
pp. 1936-1943 ◽  
Author(s):  
Mattias Lorentzon ◽  
Dan Mellström ◽  
Claes Ohlsson
Keyword(s):  
Physical Activity ◽  
Young Adult ◽  
Cortical Bone ◽  
Bone Size ◽  
Adult Men ◽  
Volumetric Bmd

scholarly journals Leptin Is a Negative Independent Predictor of Areal BMD and Cortical Bone Size in Young Adult Swedish Men

2006 ◽  
Vol 21 (12) ◽  
pp. 1871-1878 ◽  
Author(s):  
Mattias Lorentzon ◽  
Kerstin Landin ◽  
Dan Mellström ◽  
Claes Ohlsson
Keyword(s):  
Young Adult ◽  
Cortical Bone ◽  
Independent Predictor ◽  
Bone Size

Calcium intake and physical activity greatly enhance radial BMC and BMD in young adult men

1992 ◽  
Vol 17 ◽  
pp. 185
Author(s):  
J. Anderson ◽  
L. Bennett ◽  
F. Tylavsky ◽  
G. Koch
Keyword(s):  
Physical Activity ◽  
Young Adult ◽  
Calcium Intake ◽  
Adult Men

scholarly journals Current Physical Activity Is Independently Associated With Cortical Bone Size and Bone Strength in Elderly Swedish Women

2016 ◽  
Vol 32 (3) ◽  
pp. 473-485 ◽  
Author(s):  
Martin Nilsson ◽  
Daniel Sundh ◽  
Dan Mellström ◽  
Mattias Lorentzon
Keyword(s):  
Physical Activity ◽  
Cortical Bone ◽  
Bone Strength ◽  
Bone Size

scholarly journals Does Physical Activity in Adolescence Have Site-Specific and Sex-Specific Benefits on Young Adult Bone Size, Content, and Estimated Strength?

2014 ◽  
Vol 29 (2) ◽  
pp. 479-486 ◽  
Author(s):  
Rachel L Duckham ◽  
Adam DG Baxter-Jones ◽  
James D Johnston ◽  
Hassanali Vatanparast ◽  
David Cooper ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adult ◽  
Bone Size ◽  
Site Specific ◽  
Adult Bone

scholarly journals Endocrine Effects of Repeated Hot Thermal Stress and Cold Water Immersion in Young Adult Men

2021 ◽  
Vol 15 (2) ◽  
pp. 155798832110083
Author(s):  
Robert Podstawski ◽  
Krzysztof Borysławski ◽  
Andrzej Pomianowski ◽  
Wioletta Krystkiewicz ◽  
Piotr Żurek
Keyword(s):  
Physical Activity ◽  
Thermal Stress ◽  
Young Adult ◽  
Cold Water ◽  
Water Immersion ◽  
Endocrine System ◽  
Dehydroepiandrosterone Sulfate ◽  
Cold Water Immersion ◽  
Adult Men ◽  
Before And After

The aim of the study was to determine the effect of repeated hot thermal stress and cold water immersion on the endocrine system of young adult men with moderate and high levels of physical activity (PA). The research was conducted on 30 men aged 19–26 years (mean: 22.67 ± 2.02) who attended four sauna sessions of 12 min each (temperature: 90−91°C; relative humidity: 14–16 %). Each sauna session was followed by a 6-min cool-down break during which the participants were immersed in cold water (10−11°C) for 1 min. Testosterone (TES), cortisol (COR), dehydroepiandrosterone sulfate (DHEA-S), and prolactin (PRL) levels were measured before and after the sauna bath. The participants’ PA levels were evaluated using the International Physical Activity Questionnaire. Serum COR levels decreased significantly ( p < .001) from 13.61 to 9.67 µg/ml during 72 min of sauna treatment. No significant changes ( p >.05) were noted in the concentrations of the remaining hormones: TES increased from 4.04 to 4.24 ng/ml, DHEA-S decreased from 357.5 to 356.82 µg/ml, and PRL decreased from 14.50 to 13.71 ng/ml. After sauna, a greater decrease in COR concentrations was observed in males with higher baseline COR levels, whereas only a minor decrease was noted in participants with very low baseline COR values ( r =−0.673, p <.001). Repeated use of Finnish sauna induces a significant decrease in COR concentrations, but does not cause significant changes in TES, DHEA-S, or PRL levels. Testosterone concentrations were higher in men characterized by higher levels of PA, both before and after the sauna bath.

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