Key result
Increased TV viewing over 10 years was associated with greater pericardial adiposity (β=2.96 mL, P<0.01), while increased physical activity was associated with less (β=-6.22 mL, P<0.01).
Why the study?
The longitudinal association of television viewing and moderate- to vigorous-intensity physical activity with pericardial adipose tissue was unclear.
Does a 10-year change in television viewing and physical activity affect concurrent changes in pericardial adiposity in young adults transitioning to middle age?
Cohort (n=1,975)
Does a 10-year change in television viewing and physical activity affect concurrent changes in pericardial adiposity in young adults transitioning to middle age?
Mean Difference: 2.96
p-value: p=< .01
Reducing TV viewing and increasing moderate-to-vigorous physical activity in early-midlife is associated with less accumulation of pericardial adipose tissue over 10 years.
Increasing TV viewing may promote PAT accumulation independent of MVPA; hypothesis-generating and should not yet change practice.
BACKGROUND: Longitudinal association of television (TV) viewing and moderate- to vigorous-intensity physical activity (MVPA) with pericardial adipose tissue (PAT) is unclear. METHODS: We studied Coronary Artery Risk Development in Young Adults Study participants transitioning from early to middle age at Coronary Artery Risk Development in Young Adults (CARDIA) exam years 15 (2000-2001; N = 1975, mean age = 40.4, 55.4% women, 45.3% Black) and 25 (2010-2011). TV viewing (in hours per day) and MVPA (in exercise units) were measured using a self-report questionnaire. PAT volume (in milliliters) was measured using computed tomography. Multivariable linear regression was used to examine the associations of tertiles of 10-year change (years 25-15) in TV viewing and MVPA with a concurrent change in PAT with adjustments for covariates. RESULTS: Participants in the highest tertile of 10-year increase in TV viewing had a greater increase in PAT (β = 2.96 mL, P < .01). Participants in both middle (β = -3.93 mL, P < .01) and highest (β = -6.22 mL, P < .01) tertiles of 10-year changes in MVPA had smaller mean increases in PAT over 10 years when compared with the lowest tertile in fully adjusted models. CONCLUSIONS: Reducing or maintaining early-midlife levels of TV viewing and increasing MVPA may be associated with less PAT accumulation with age.
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Oh et al. (2022) reported a cohort. 10-year change in television viewing and physical activity vs. Lowest tertile of 10-year change was evaluated on 10-year change in pericardial adipose tissue (PAT) volume (β = 2.96, p=< .01). Increased TV viewing over 10 years was associated with greater pericardial adiposity (β=2.96 mL, P<0.01), while increased physical activity was associated with less (β=-6.22 mL, P<0.01).
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