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Meta-Analysis
. 2024 Jun;67(6):1051-1065.
doi: 10.1007/s00125-024-06090-y. Epub 2024 Mar 13.

Relationship of device measured physical activity type and posture with cardiometabolic health markers: pooled dose-response associations from the Prospective Physical Activity, Sitting and Sleep Consortium

Affiliations
Meta-Analysis

Relationship of device measured physical activity type and posture with cardiometabolic health markers: pooled dose-response associations from the Prospective Physical Activity, Sitting and Sleep Consortium

Matthew N Ahmadi et al. Diabetologia. 2024 Jun.

Abstract

Aims/hypothesis: The aim of this study was to examine the dose-response associations of device-measured physical activity types and postures (sitting and standing time) with cardiometabolic health.

Methods: We conducted an individual participant harmonised meta-analysis of 12,095 adults (mean ± SD age 54.5±9.6 years; female participants 54.8%) from six cohorts with thigh-worn accelerometry data from the Prospective Physical Activity, Sitting and Sleep (ProPASS) Consortium. Associations of daily walking, stair climbing, running, standing and sitting time with a composite cardiometabolic health score (based on standardised z scores) and individual cardiometabolic markers (BMI, waist circumference, triglycerides, HDL-cholesterol, HbA1c and total cholesterol) were examined cross-sectionally using generalised linear modelling and cubic splines.

Results: We observed more favourable composite cardiometabolic health (i.e. z score <0) with approximately 64 min/day walking (z score [95% CI] -0.14 [-0.25, -0.02]) and 5 min/day stair climbing (-0.14 [-0.24, -0.03]). We observed an equivalent magnitude of association at 2.6 h/day standing. Any amount of running was associated with better composite cardiometabolic health. We did not observe an upper limit to the magnitude of the dose-response associations for any activity type or standing. There was an inverse dose-response association between sitting time and composite cardiometabolic health that became markedly less favourable when daily durations exceeded 12.1 h/day. Associations for sitting time were no longer significant after excluding participants with prevalent CVD or medication use. The dose-response pattern was generally consistent between activity and posture types and individual cardiometabolic health markers.

Conclusions/interpretation: In this first activity type-specific analysis of device-based physical activity, ~64 min/day of walking and ~5.0 min/day of stair climbing were associated with a favourable cardiometabolic risk profile. The deleterious associations of sitting time were fully attenuated after exclusion of participants with prevalent CVD and medication use. Our findings on cardiometabolic health and durations of different activities of daily living and posture may guide future interventions involving lifestyle modification.

Keywords: Cardiometabolic health; Individual participant meta-analysis; Physical activity type; Posture; Running; Sitting; Stair climbing; Standing; Walking; Wearables.

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Figures

Fig. 1
Fig. 1
Association of physical activity types (a) and posture (b) with overall cardiometabolic health. Adjusted for age, sex, smoking, alcohol consumption, sleep duration, self-rated health, medication use, prevalent CVD and cohort, and mutually adjusted for physical activity types and posture using the residual method. n=9001. Data shown are point estimates (95% CI). The horizontal dotted line indicates a z score of 0. Histograms represent the time distribution for each activity type and posture. Covariate effect size estimates are shown in ESM Table 4
Fig. 2
Fig. 2
Association of physical activity types and posture with BMI (a) and waist circumference in men (b) and women (c). Adjusted for age, sex, smoking, alcohol consumption, sleep duration, self-rated health, medication use, prevalent CVD and cohort, and mutually adjusted for physical activity types and posture using the residual method. BMI, n=12,095; waist circumference, n=11,897. Data shown are point estimates (95% CI). Histograms represent the time distribution for each activity type and posture
Fig. 3
Fig. 3
Association of physical activity types and posture with total cholesterol (a), triglyceride (b), HDL-cholesterol (c) and HbA1c (d). Adjusted for age, sex, smoking, alcohol consumption, sleep duration, self-rated health, medication use, prevalent CVD and cohort, and mutually adjusted for physical activity types and posture using the residual method. Total cholesterol, n=10,728; triglycerides, n=9417; HDL-cholesterol, n=10,729; HbA1c, n=10,346. Data shown are point estimates (95% CI). Histograms represent the time distribution for each activity type and posture

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