Figure 1 Weekly volume of physical activity, stratified by physical activity intensity.
Figure 3 Average weekly volume of physical activity vs. average number of weekly audio-device music playcounts.
The primary outcome consisted of the weekly volume of physical activity undertaken over 3 months as determined by tri-axial accelerometers.
The average number of weekly audio-plays per group strongly correlated with a group's weekly average volume of physical activity (r = 0.61, P < 0.001), (Figure 3).
This study provides evidence that patients with CVD who achieve at least a moderate volume of physical activity reduce their mortality risk.
The graph demonstrates the correlation between a group's average weekly volume of physical activity (in minutes) and a group's average number of weekly playcounts from the audio-playlist devices (r = 0.61, P < 0.001).
Improvements in the weekly volume of physical activity associated with RAS increased over time, were sustainable, applied to all intensity-levels of physical activity and were as pronounced among high-risk as it was among low-risk subgroups.
The primary outcome was defined as the weekly average volume of physical activity (i.e. mean weekly minutes of physical activity as measured using tri-axial accelerometers) throughout the 3-month study.
Generalized Linear Modelling was used to fit the data using maximum likelihood equations (PROC GENMOD), and the first-order autoregressive function was used to examine weekly mean volume of physical activity across intervention groups, while accounting for repeated measures in weekly assessments.
Irrespective of sex, both the intensity and the total volume of physical activity are influenced by stressful life events, such as a partner's death, and immediate meteorological factors, particularly precipitation and mean ambient temperature, underlining the need for long-term measurement of activity patterns.
Usually, recommendations are expressed as the requirement to either undertake a certain amount of physical activity above specific intensity thresholds (e.g., time engaged in moderate intensity activity on a certain number of days per week) or to undertake a specified volume of physical activity (e.g., overall physical activity energy expenditure).
