Violin plots and boxplots showing the estimation bias of model 4 across the whole test group (top left), by sex (top right), by age tertiles (bottom left) and BMI categories (bottom right).

<p>Violin plots and boxplots showing the estimation bias of model 4 across the whole test group (top left), by sex (top right), by age tertiles (bottom left) and BMI categories (bottom right).</p

Performance of the four models of wrist acceleration.

<p>Explained variance shown is between-individual explained variance from ANOVA repeated measures.</p

Forest plot showing the beta point estimates and their respective confidence intervals of the effect size of PAEE on BMI.

<p>Forest plot showing the beta point estimates and their respective confidence intervals of the effect size of PAEE on BMI.</p

Summary statistics of the cohort, provided separately for the training and test datasets, by sex.

<p>Summary statistics of the cohort, provided separately for the training and test datasets, by sex.</p

Example of simultaneous PAEE and wrist acceleration signal over 5 days.

<p>Example of simultaneous PAEE and wrist acceleration signal over 5 days.</p

Additional file 1: of Development and feasibility of a wearable infant wrist band for the objective measurement of physical activity using accelerometery

Acceptability Questionnaire. (PDF 67 kb

Physical Activity Energy Expenditure (Bland-Altman plot).

<p>Difference between DLW-measured and heart rate and accelerometry estimated physical activity energy expenditure (PAEE) in kilojoules per kg per day for adult women (triangles) and men (squares) plotted against DLW-measured PAEE. Broken lines are mean (±2 SD) estimation errors.</p

Additional file 1: of A cross-sectional study of physical activity and sedentary behaviours in a Caribbean population: combining objective and questionnaire data to guide future interventions

Recent Physical Activity Questionnaire. (DOC 132 kb

Participant characteristics.

<p>BMI, Body Mass Index; VO₂max, Maximal oxygen uptake (estimated from individual HR-VO₂ relationship during treadmill test); REE, Resting Energy Expenditure; TEE, Total Energy Expenditure; PAEE, Physical Activity Energy Expenditure; PAL, Physical Activity Level (TEE/REE). Mean (SD) isotopic space ratio was 1.037 (0.01).</p><p>*p<0.05 different from women.</p><p>Participant characteristics.</p

Additional file 3: Table S1. of A cross-sectional study of physical activity and sedentary behaviours in a Caribbean population: combining objective and questionnaire data to guide future interventions

Participant characteristics of Health of the Nation sample aged 25–54 years. Table S2. Distribution of inactivity as assessed by objective and subjective measures for selected population characteristics. Table S3. Proportional contribution of each domain to total energy expenditure in young to middle aged Barbadian adults (excluding unemployed participants). (XLS 17 kb