Physical activity showed no significant linear relationship with left ventricular trabeculation extent in a community-based cohort (ß=-0.0008; 95% CI -0.039 to -0.037; p=0.97).
Cross-Sectional (n=1,030)
Yes
Is there a dose-response relationship between physical activity and left ventricular trabeculation extent in a community-based cohort?
In a general population cohort, typical levels of physical activity are not associated with changes in left ventricular trabeculation extent.
Effect estimate: ß -0.0008 (95% CI -0.039 to -0.037)
p-value: p=0.97
OBJECTIVE: Vigorous physical activity (PA) in highly trained athletes has been associated with heightened left ventricular (LV) trabeculation extent. It has therefore been hypothesised that LV trabeculation extent may participate in exercise-induced physiological cardiac remodelling. Our cross-sectional observational study aimed to ascertain whether there is a 'dose-response' relationship between PA and LV trabeculation extent and whether this could be identified at opposite PA extremes. METHODS: In a cohort of 1030 individuals from the community-based UK Biobank study (male/female ratio: 0.84, mean age: 61 years), PA was measured via total metabolic equivalent of task (MET) min/week and 7-day average acceleration, and trabeculation extent via maximal non-compaction/compaction ratio (NC/C) in long-axis images of cardiovascular magnetic resonance studies. The relationship between PA and NC/C was assessed by multivariate regression (adjusting for potential confounders) as well as between demographic, anthropometric and LV phenotypic parameters and NC/C. RESULTS: There was no significant linear relationship between PA and NC/C (full adjustment, total MET-min/week: ß=-0.0008, 95% CI -0.039 to -0.037, p=0.97; 7-day average acceleration: ß=-0.047, 95% CI -0.110 to -0.115, p=0.13, per IQR increment in PA), or between extreme PA quintiles (full adjustment, total MET-min/week: ß=-0.026, 95% CI -0.146 to -0.094, p=0.67; 7-day average acceleration: ß=-0.129, 95% CI -0.299 to -0.040, p=0.49), across all adjustment levels. A negative relationship was identified between left ventricular ejection fraction and NC/C, significantly modified by PA (ß difference=-0.006, p=0.03). CONCLUSIONS: In a community-based general population cohort, there was no relationship at, or between, extremes, between PA and NC/C, suggesting that at typical general population PA levels, trabeculation extent is not influenced by PA changes.
Woodbridge et al. (Tue,) conducted a cross-sectional in General population (n=1,030). Physical activity vs. Different levels of physical activity was evaluated on Left ventricular trabeculation extent (maximal non-compaction/compaction ratio) (ß -0.0008, 95% CI -0.039 to -0.037, p=0.97). Physical activity showed no significant linear relationship with left ventricular trabeculation extent in a community-based cohort (ß=-0.0008; 95% CI -0.039 to -0.037; p=0.97).