Figure 1.

Examples of physical activity and sedentary behavior variables derived from accelerometry data in one participant. The x-axis represents 7 hours of time, in 1 minute epoch values, of the accelerometry measurements. The height of the data on the y-axis represents the intensity of the epoch values, with higher data points equaling higher intensities.

Carson and Janssen BMC Public Health 2011 11:274   doi:10.1186/1471-2458-11-274
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