Farkhooy A, et al. - Researchers used a cohort of middle-aged men (between 40 and 59 years), to study the longitudinal link between lung function indices and exercise capacity, evaluated by the total amount of work performed on a standardized incremental test, in a cohort of middle-aged men. They observed that lung function indices and exercise capacity (assessed through physical fitness) showed a weak association in middle-aged, healthy men. With increasing age, strengthening of this link was observed, this pointed to a larger role for lung function in limiting exercise capacity among elderly subjects. However, no association was observed between decline in physical fitness over time and decline in lung function.