Estimating historical changes in physical activity levels

Objective To compare activity levels between a simulated “historical” lifestyle and a “modern” lifestyle to try to validate earlier estimates of secular changes in activity. Design Triaxial accelerometers (TRACMORs) were used to measure activity levels in a “historical” group of seven male actors wh...

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Bibliographic Details
Published in:Medical journal of Australia 2001-12, Vol.175 (11-12), p.635-636
Main Authors: Egger, Garry J, Vogels, Neeltje, Westerterp, Klaas R
Format: Article
Language:English
Subjects:
Adult
Australia
Biological and medical sciences
Energy Metabolism
Exercise
General aspects
Humans
Life Style
Male
Medical sciences
Middle Aged
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Summary:Objective To compare activity levels between a simulated “historical” lifestyle and a “modern” lifestyle to try to validate earlier estimates of secular changes in activity. Design Triaxial accelerometers (TRACMORs) were used to measure activity levels in a “historical” group of seven male actors who were paid to live like early Australian settlers at a theme park north of Sydney (eg, minimising the use of modern technology) for a week. Results were compared with those from a group of seven “modern” sedentary office workers. Results Activity levels were up to 2.3 times greater in the historical group than the modern group. Calculations based on body weight and energy expenditure suggest the difference is the equivalent of walking up to 16 km per day more in the past than today. Conclusions These findings accord with two previous estimates of changes in daily activity levels over time and suggest that recent public health guidelines for increasing physical activity may be inadequate.
ISSN:0025-729X
1326-5377
DOI:10.5694/j.1326-5377.2001.tb143758.x