Two accelerometer metrics (intensity-gradient and average-acceleration) can be used to
determine the relative contributions of physical activity (PA) volume and intensity for health …

ABSTRACT ROWLANDS, AV, CL EDWARDSON, NP DAWKINS, BD MAYLOR, KM
METCALF, and KF JANZ. Physical Activity for Bone Health: How Much and/or How Hard …

Accelerometers are used to assess the total activity and time spent at varying intensities of
activity. The timesampling interval (epoch) used in most field studies is 60 s, as use of …

Purpose: This study analyzed prospective associations between distinct trajectories of
objectively measured physical activity (PA) and late adolescent bone parameters and …

Background Physical activity improves bone strength and reduces the risk for osteoporotic
fractures. However, there are substantial gaps in our knowledge as to when, how and how …

Physical activity is essential for optimal bone strength accrual, but we know little about
interactions between physical activity, sedentary time, and bone outcomes in older …

Background: Previous research has reported peak vertical acceleration and peak loading
rate thresholds beneficial to bone mineral density (BMD). Such thresholds are difficult to …

Positive associations have been identified between bone outcomes and accelerometer-
derived moderate (MPA) and vigorous (VPA) physical activity (PA) in youth; however, it …

Physical activity (PA) may need to produce high impacts to be osteogenic. The aim of this
study was to identify threshold (s) for defining high impact PA for future analyses in the VIBE …

Ground impacts during physical activity may be important for peak bone mass. We found
differences in how energy expenditure and impact scores estimated from a physical activity …