Motivation to exercise can fluctuate

The motivation to exercise fluctuates from week to week, which can tell whether people will be physically active or not, suggests a report.

`Many of us set New Year resolutions; to be more physically active, and we expect these resolutions to be stable throughout the year,` said David Conroy, professor of kinesiology at Penn State University.

Conroy and his colleagues recruited a group of college students and assessed them over a period of 10-weeks, both the students` weekly intentions to be physically active and their activity levels, according to a Penn statement.

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According to the report, during each of the 10 weeks, participants were instructed to log on web site to rate their intentions to perform physical activity for the week ahead. Participants were also instructed to wear pedometers each day for the first four weeks to assess physical activity.

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