R and omized controlled trials found a positive correlation for SB with BMI , neck circumference , fat mass , HbA1C , cholesterol and insulin levels , cohort studies additionally for WC , leptin , C-peptide , ApoA1 and Low density lipoprotein and a negative correlation for HDL .
Most studied biomarkers associated with SB were of cardiovascular or metabolic origin .
OBJECTIVE Pathomechanisms of sedentary behaviour ( SB ) are unclear .
We conducted a systematic review to investigate the associations between SB and various biomarkers in older adults .
Television Viewing Time is Associated with Overweight/Obesity Among Older Adults, Independent of Meeting Physical Activity and Health Guidelines
Background Previous studies have shown associations of sedentary behavior with cardiovascular risk , independent of moderate-to-vigorous physical activity ( MVPA ) . However , few studies have focused on older adults . This study examined the joint associations of  television ( TV ) viewing time and MVPA with overweight/obesity among Japanese older adults . Methods A population -based , cross-sectional mail survey was used to collect self-reported height , weight , time spent in TV viewing , and MVPA from 1806 older adults ( age : 65–74 years , men : 51.1 % ) . Participants were classified into 4 categories according to  TV viewing time  ( dichotomized into high and low around the median ) and  MVPA level ( dichotomized into sufficient and insufficient by the physical activity guideline level of ≥150 minutes/week ) . Odds ratios ( ORs ) for overweight/obesity ( body mass index ≥25 kg/m2 ) were calculated according to the 4 TV/MVPA categories , adjusting for potential confounders . Results Of all participants , 20.1 % were overweight/obese . The median TV viewing time ( 25th , 75th percentile ) was 840 ( 420 , 1400 ) minutes/week . As compared with the reference category ( high TV/insufficient MVPA ) , the adjusted ORs ( 95 % CI ) of overweight/obesity were 0.93 ( 0.65 , 1.34 ) for high TV/sufficient MVPA , 0.58 ( 0.37 , 0.90 ) for low TV/insufficient MVPA , and 0.67 ( 0.47 , 0.97 ) for low TV/sufficient MVPA . Conclusions In this sample of older adults , spending less time watching TV , a predominant sedentary behavior , was associated with lower risk of being overweight or obese , independent of meeting physical activity guidelines . Further studies using prospect i ve and /or intervention design s are warranted to confirm the presently observed effects of sedentary behavior , independent of physical activity , on the health of older adults
R and omized controlled trials found a positive correlation for SB with BMI , neck circumference , fat mass , HbA1C , cholesterol and insulin levels , cohort studies additionally for WC , leptin , C-peptide , ApoA1 and Low density lipoprotein and a negative correlation for HDL .
Most studied biomarkers associated with SB were of cardiovascular or metabolic origin .
OBJECTIVE Pathomechanisms of sedentary behaviour ( SB ) are unclear .
We conducted a systematic review to investigate the associations between SB and various biomarkers in older adults .