Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Expected risk of Alzheimer disease (AD) based on the entire cohort is illustrated for 2 hypothetical average participants with high (dotted line: 90th percentile, 4.90 × 105 activity counts per day) and low levels (solid line: 10th percentile, 1.24 × 105 activity counts per day) of total daily physical activity.
