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.
Proportions attaining the 10 000 steps/day goal at baseline, in phase I, and phase II, by intervention group. Forty‐eight percent of participants attained the 10 000 step/day goal at baseline. No significant change or between‐group difference was observed in phase I, whereas in phase II, the unblinded‐texts group showed a 37% absolute increase and 84% relative increase over other groups in 10 000 steps/day attainment (P=0.02).
