Sedentary behaviour and clustered metabolic risk in adolescents: the HELENA study.
OBJECTIVE
Although sedentary behaviours are linked with mortality for cardiovascular reasons, it is not clear whether they are negatively related with cardio-metabolic risk factors. The aim was to examine the association between time engaged in television (TV) viewing or playing with videogames and a clustered cardio-metabolic risk in adolescents.


RESULTS
Sedentary behaviours and physical activity were assessed in 769 adolescents (376 boys, aged 12.5-17.5 years) from the HELENA-CSS study. We measured systolic blood pressure, HOMA index, triglycerides, TC/HDL-c, VO₂max and the sum of four skinfolds, and a clustered metabolic risk index was computed. A multilevel regression model (by Poisson) was performed to calculate the prevalence ratio of having a clustered metabolic risk. In boys, playing >4 h/day with videogames (weekend) and moderate to vigorous PA (MVPA) was associated with cardio-metabolic risk after adjustment for age, maternal education and MVPA. In contrast, TV viewing was not associated with the presence of cardio-metabolic risk.


CONCLUSIONS
In boys, playing with videogames may impair cardio-metabolic health during the adolescence. Adolescents should be encouraged to increase their participation in physical activity of at least moderate intensity to obtain a more favourable risk factor profile.
GENUD Research Group, University of Zaragoza, C/Corona de Aragon, 42, Zaragoza E-50009, Spain. Electronic address: jprey@unizar.es.
J P
JP
Rey-López
S
S
Bel-Serrat
A
A
Santaliestra-Pasías
A C
AC
de Moraes
G
G
Vicente-Rodríguez
J R
JR
Ruiz
E G
EG
Artero
D
D
Martínez-Gómez
F
F
Gottrand
S
S
De Henauw
I
I
Huybrechts
A
A
Polito
D
D
Molnar
Y
Y
Manios
L A
LA
Moreno
D061725:Accelerometry; D000293:Adolescent; D000294:Adolescent Behavior; D002318:Cardiovascular Diseases / Q000097:blood / Q000453:epidemiology* / Q000209:etiology; D003430:Cross-Sectional Studies; D005060:Europe / Q000453:epidemiology; D005260:Female; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008659:Metabolic Diseases / Q000097:blood / Q000453:epidemiology* / Q000209:etiology; D009043:Motor Activity; D016012:Poisson Distribution; D015995:Prevalence; D012307:Risk Factors; D012574:Schools; D057185:Sedentary Behavior; D012727:Sex Characteristics; D013690:Television; D018910:Video Games / Q000009:adverse effects