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Up and down make different workouts

12:10pm, December 5, 2004

From New Orleans, at a meeting of the American Heart Association

Hiking on a mountainside gives the heart a health-promoting challenge, but the nature of the benefit depends on whether one is climbing or descending. A study conducted on an Alpine mountainside suggests that going up improves the body's processing certain fats, while going down enhances metabolism of a key sugar.

For 2 months of the study, 45 healthy but generally inactive volunteers spent 3 to 5 hours per week scaling the 30-degree slope of a mountain near Feldkirch, Austria, and rode a cable car back down. During a separate 2-month period, they rode up but descended on foot.

Before and after each phase of the study, Heinz Drexel and his colleagues at the Vorarlberg Institute for Vascular Investigation and Treatment in Feldkirch fed the volunteers fatty compounds and the sugar glucose and then measured the hikers' blood concentrations of those substances.

Both up and down hiking soft

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