Peak aerobic power is an important component of physical performance in older women

Background. The purpose of this study was to determine the relationship between peak aerobic power [Mathematical Expression Omitted] and performance on a modified Physical Performance Test (modified PPT) in older women. Methods. One hundred one women aged 75 years and older seeking enrollment in randomized, controlled trials of exercise and/or hormone replacement therapy were recruited from the community-at-large and from congregate living sites. Measures obtained included [Mathematical Expression Omitted], a modified PPT, and self-reports about performance of activities of daily living. Results. Simple regression analysis demonstrated that [Mathematical Expression Omitted] was associated with total PPT score (r = .53, p < .001), gait speed (r = .44, p < .001), time to arise from a chair five times (r = .43, p = < .001), and time to climb one flight of stairs (r = .36, p = .007). Multiple regression analysis revealed that the relationships between [Mathematical Expression Omitted] and total modified PPT score, gait speed, chair rise time, and time to climb one flight of stairs were independent of age. Conclusions. Peak aerobic power is a significant independent predictor of performance on a standardized test of physical function in older women and is an important component of physical frailty in this population.