TY  - JOUR
AU  - Ács, Pongrác
AU  - Prémusz, Viktória
AU  - Melczer, Csaba
AU  - Bergier, J
AU  - Salonna, F
AU  - Junger, J
AU  - Makai, Alexandra
TI  - Nemek közötti különbségek vizsgálata a fizikai aktivitás vonatkozásában a V4 országok egyetemista populációjának körében
JF  - MAGYAR SPORTTUDOMÁNYI SZEMLE
J2  - M SPORTTUD SZLE
VL  - 19
PY  - 2018
IS  - 74
SP  - 3
EP  - 9
PG  - 7
SN  - 1586-5428
UR  - https://m2.mtmt.hu/api/publication/3356885
ID  - 3356885
LA  - Hungarian
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Gracia-Marco, L
AU  - Moreno, LA
AU  - Ortega, FB
AU  - Leon, F
AU  - Sioen, I
AU  - Kafatos, A
AU  - Martinez-Gomez, D
AU  - Widhalm, K
AU  - Castillo, MJ
AU  - Vicente-Rodriguez, G
ED  - Molnár, Dénes / Collaborator
ED  - Bokor, Szilvia / Collaborator
ED  - Csernus, Katalin / Collaborator
ED  - Erhardt, Éva / Collaborator
ED  - Répásy, Judit Andrea / Collaborator
ED  - Török, Katalin / Collaborator
TI  - Levels of physical activity that predict optimal bone mass in adolescents: the HELENA study
JF  - AMERICAN JOURNAL OF PREVENTIVE MEDICINE
J2  - AM J PREV MED
VL  - 40
PY  - 2011
IS  - 6
SP  - 599
EP  - 607
PG  - 9
SN  - 0749-3797
DO  - 10.1016/j.amepre.2011.03.001
UR  - https://m2.mtmt.hu/api/publication/1690844
ID  - 1690844
AB  - BACKGROUND: Physical activity is necessary for bone mass 
development in adolescence. There are few studies quantifying 
the associations between physical activity and bone mass in 
adolescents. PURPOSE: To assess the relationship between 
moderate-to-vigorous physical activity (MVPA) and vigorous 
physical activity (VPA) and bone mass in adolescents. METHODS: 
Bone mass was measured by dual-energy X-ray absorptiometry and 
physical activity by accelerometers in 380 healthy Spanish 
adolescents (189 boys, aged 12.5-17.5 years) from the HELENA-CSS 
(2006-2007). Subjects were classified according to the 
recommended amount of MVPA (<60 minutes or >/=60 minutes of 
MVPA/day). Receiver operating characteristic curve analysis was 
applied to calculate the relationship between physical activity 
and bone mass. RESULTS: Less than 41 and 45 minutes of MVPA/day 
are associated with reduced bone mass at the trochanter and 
femoral neck. More than 78 minutes of MVPA/day is associated 
with increased bone mineral density (BMD) at the femoral neck. 
Regarding VPA, more than 28 minutes/day for the hip and 
intertrochanter and more than 32 minutes/day for the femoral 
neck are associated with increased BMD. CONCLUSIONS: The 
recommended amount of physical activity (minutes/day) seems 
insufficient to guarantee increased bone mass. With some minutes 
of VPA/day, bone adaptations could be obtained at different bone 
sites.
LA  - English
DB  - MTMT
ER  -