On the eve of the 2012 summer Olympic Games, the first Lancet Series on physical activity
established that physical inactivity was a global pandemic, and global public health action …

To implement effective non-communicable disease prevention programmes, policy makers
need data for physical activity levels and trends. In this report, we describe physical activity …

Background The impact of social isolation and loneliness on health risk may be mediated by
a combination of direct biological processes and lifestyle factors. This study tested the …

Purpose To validate and improve a commonly used algorithm for classifying accelerometer
wear and nonwear time intervals using objective movement data obtained in the whole …

The use of a four‐level questionnaire to assess leisure time physical activity (PA) and its
validation is reviewed in this paper. This questionnaire was first published in 1968 and has …

Background Sedentary time has been found to be independently associated with poor
health and mortality. Further, a greater proportion of the workforce is now employed in low …

Objective: A systematic review and meta-analysis of randomized controlled trials to
determine if motivational interviewing leads to increased physical activity, cardiorespiratory …

Background Research examining sedentary behaviour as a potentially independent risk
factor for chronic disease morbidity and mortality has expanded rapidly in recent years …

The use of physical activity monitors in population-based research has increased
dramatically in the past decade. In this report we review the major purpose for using physical …

Background Reliability of the Actigraph GT3X+ accelerometer has not been determined
under normal wear time criteria in a large sample of subjects and accelerometer units. The …