Diurnal pattern of breaks in sedentary time and the physical function of older adults

Table 2 Associations of the overall and time-specific breaks in sedentary time with the outcomes of physical function (n = 115)

Outcome of physical function	Overall breaks in sedentary time during the day (z-score)			Time-specific breaks in sedentary time during the day (z-score)
				Morning		Afternoon			Evening
				(06:00–12:00)		(12:00–18:00)			(18:00–24:00)
	Exp (β)	(95% CI)	p	Exp (β)	(95% CI)	p	Exp (β)	(95% CI)	p	Exp (β)	(95% CI)	p
¹Handgrip strength (kg)^a	0.98	(0.92, 1.05)	0.61	1.00	(0.95, 1.05)	0.99	1.01	(0.97, 1.05)	0.67	0.99	(0.95, 1.02)	0.44
²Balance ability (s)^a	1.16	(0.88, 1.52)	0.29	1.18	(0.95, 1.47)	0.14	0.97	(0.81, 1.16)	0.69	1.06	(0.89, 1.27)	0.50
³Gait speed (s) ^b	0.92	(0.86, 0.96)	< 0.01	0.97	(0.93, 1.02)	0.24	0.99	(0.96, 1.03)	0.81	0.94	(0.91, 0.97)	< 0.01
⁴Basic functional mobility (s)^b	0.95	(0.89, 1.02)	0.14	1.00	(0.95, 1.05)	0.90	0.99	(0.94, 1.03)	0.58	0.93	(0.89, 0.97)	< 0.01
⁵Lower-limb strength (s)^b	0.91	(0.83, 1.00)	0.056	0.98	(0.91, 1.05)	0.56	1.00	(0.93, 1.07)	0.91	0.92	(0.87, 0.97)	< 0.01

exp (β): antilogarithms of the regression coefficients; CI: confidence interval. The estimates with p < 0.05 was highlighted in bold
¹ Adjusted for sex, marital status, self-rated health, depression, tobacco use, dietary intake, MVPA, sedentary time, and monitor wear time
² Adjusted for age group, marital status, education level, self-rated health, depression, diabetes, alcohol use, MVPA, sedentary time, and monitor wear time
³ Adjusted for sex, age group, BMI, marital status, educational level, self-rated health, dietary intake, MVPA, sedentary time, and monitor wear time
⁴ Adjusted for age group, BMI, self-rated health, MVPA, sedentary time, and monitor wear time
⁵ Adjusted for age group, living status, MVPA, sedentary time, and monitor wear time
^a A positive association indicates a better physical function, accompanied by a higher break in sedentary time
^b A negative association indicates a better physical function, accompanied by a higher break in sedentary time

ISSN: 2049-3258