Wearable monitors criterion validity for energy expenditure in sedentary and light activities.

Background: Wearable monitors (WMs) are used to estimate the time spent in sedentary behaviors (SBs) and light-intensity physical activities (LPAs) and their associated energy cost; however, the accuracy of WMs in measuring behaviors on the lower end of the intensity spectrum is unclear. The aim of this study was to assess the validity of 3 WMs (ActiGraph GT3X+; PAL, and SenseWear 2) in estimating the intensity of SB and LPA in adults as compared with the criterion measure of oxygen uptake (VO) measured by indirect calorimetry.

Methods: Sixteen participants (age: 25.

Cognitive Inconsistency and Practice-Related Learning in Older Adults.

The current study examined predictors of individual differences in the magnitude of practice-related improvements achieved by 87 older adults (mean 63.52 years) over 18-weeks of cognitive practice. Cognitive inconsistency in both baseline trial-to-trial reaction times and week-to-week accuracy scores was included as predictors of practice-related gains in two measures of processing speed.