Abstract
We aimed to clarify the patterns of moderate to vigorous physical activity (MVPA) in the Japanese adult population, and the proportion of people meeting the recommendations of the Physical Activity Guidelines (PAG) for Americans, second edition (2nd PAG; ≥150 min/week of total MVPA including bouts of any length) and those meeting the previously recommended PAG (2008-PAG; of ≥150 min/week of total MVPA lasting 10 min or longer [long-bout MVPA]). A total of 204 adults (aged 18 to 64 years) from two workplaces were asked to wear an accelerometer. MVPA was classified by bout length, and the proportion of long-bout MVPA was clarified. The proportion of participants adhering to the 2008-PAG and the 2nd PAG recommendations was calculated. Valid data was obtained from 184 adults. Long-bout MVPA accounted for 13.4% of total MVPA. Our results showed that 12.5% of individuals performed MVPA as recommended by the 2008-PAG whereas 92.4% performed MVPA as recommended by the 2nd PAG. Our results, hence, showed that long-bout MVPA comprised only a small proportion of total MVPA, and the proportion of individuals who satisfied the criteria stated in the guidelines (≥150 min/week) significantly changed by whether or not bout length of MVPA was taken into account.
Highlights
Being physically active is associated with many health benefits, such as lower risk of all-cause mortality, lower incidence of cardiovascular diseases and some types of cancers, musculoskeletal health benefits, and mental health benefits [1,2]
These results suggested that total moderate to vigorous physical activity (MVPA) time of any bout length comparable to 150 min/week of long-bout MVPA may be considerably longer than 150 min/week
27% of total MVPA time (46.5 min/day) in older subjects, and the percentage of subjects that met the guidelines varied greatly depending on whether or not bout length was taken into consideration [12]
Summary
Being physically active is associated with many health benefits, such as lower risk of all-cause mortality, lower incidence of cardiovascular diseases and some types of cancers, musculoskeletal health benefits, and mental health benefits [1,2]. The Physical Activity Guidelines for Americans 2008. (2008-PAG) recommended ≥150 min/week of moderate to vigorous physical activity (MVPA) lasting at least 10 min (long-bout MVPA), based on previous studies that mostly investigated long-bout MVPA using a questionnaire [1,3]. MVPA lasting less than 10 min (short-bout MVPA) [4,5,6,7]. Based on these studies, the second edition of the Physical Activity Guidelines for Americans (2nd PAG) was published [8].
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