Background Physical activity could benefit drug users' physiological and mental health. Previous research has suggested that physical activity levels change when drug users enter prison.
Methods Twenty-five class A drug users who were new to prison answered physical activity and drug use cross-sectional questionnaires, took a submaximal fitness test and wore a pedometer for 1 week.
Results Participants' mean aerobic capacity was estimated as 49 mls O2/kg/min (±12 SD). Their mean self-reported walking distance outside of prison was 4.67 miles on an average day (±4.14 SD). Pedometer data suggest they walked a mean of 1.8 miles/day in prison.
Conclusion Many class A drug users entering prison had high levels of fitness and physical activity before admission, often gained from walking. Walking activity reduced when they entered prison, posing a challenge to maintaining healthy activity levels.
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Funding Oxford Brookes University Research Fund (and Helen Dawes is funded by the Elizabeth Casson Trust).
Competing interests None.
Ethics approval Ethics Committee for Wales (reference 10/MRE09/01).
Provenance and peer review Not commissioned; externally peer reviewed.
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