How diverse was the leisure time physical activity of older Australians over the past decade?

Objectives: Public health recommendations for older adults highlight the need to engage in a combination of aerobic, muscle strength, flexibility and balance activities. This study characterised leisure time physical activity in older Australians (≥ 65 years), examining the diversity in reported activities

Design: Cross-sectional monitoring.

Methods: The Exercise Recreation and Sport Surveys (2001-2009) were combined and analysed for 22,050 elderly.

Respiratory health effects of exposure to low-NOx unflued gas heaters in the classroom: a double-blind, cluster-randomized, crossover study.

Background: There are long-standing concerns about adverse effects of gas appliances on respiratory health. However, the potential adverse effect of low-NOx (nitrogen oxide) unflued gas heaters on children's health has not been assessed.

Objectives: Our goal was to compare the respiratory health effects and air quality consequences of exposure to low-NOx unflued gas heaters with exposure to non-indoor-air-emitting flued gas heaters in school classrooms.