Dose-response association between physical activity and sedentary time categories on ageing biomarkers

BMC Geriatrics

Table 3 Continuous associations with physical function and frailty (beta coefficients (95% CIs) and corresponding p-values)

Outcome	Moderate-to-vigorous physical activity time		Light physical activity-to-sedentary behavior ratio
Outcome	Beta (95% CI) ^a	p-value	Beta (95% CI) ^b	p-value
Short Physical Performance Battery (n = 765)	0.03 (0.02, 0.04)	< 0.001	0.96 (0.09, 1.82)	0.030
Frailty Trait Scale (n = 749)	−0.18 (− 0.22, − 0.14)	< 0.001	−5.39 (− 9.34, − 1.44)	0.008

Adjusted linear regression models were fitted for physical function and frailty outcomes. The models were controlled for: age, sex, education, income, marital status, moderate-to-vigorous physical activity time, light physical activity-to-sedentary time ratio, and accelerometer wear-time.
Bold indicates statistical significance at α = 0.05
^aBeta coefficients represent a one minute increase in moderate-to-vigorous physical activity time per day
^bBeta coefficients represent a one unit increase in the light physical activity-to-sedentary behavior ratio

ISSN: 1471-2318