Table 2.

Examples of short text or voice messages.

Recipient	STVMa type	Example
Participants in PMb and PM+FFc arms	Reminder to review goals and self-monitor PAd	Remember to review your daily step goals, wear your pedometer, and fill out your walking log.
	PA behavior change education	Brisk walking can lower your blood sugar and improve your A1C. Your doctor may instruct you to take fewer diabetes pills or less insulin. Brisk walking will leave you feeling better so you can do activities you enjoy, such as spending quality time with family and friends. Walk first thing in the morning before your day gets too busy. If you don’t have 30 minutes, look for three 10-minute periods.
	Reporting on PA performance	How well did you do with your daily step goals in the past 7 days? Reply with a number from 1 (not well at all) to 5 (excellent).
	Feedback on PA performance	If response was 1, 2, or 3: Walking needs to be a regular habit to produce benefits. Make an effort to improve your walking in the next 7 days. If response was 4 or 5: Great! Keep up your hard work, and you will see that it will pay off. Increase your daily goal by 1000 steps.
Family members and friends of participants in PM+FF arm	Supportive behaviors	Brisk walking can help lower the patient’s blood sugar to keep diabetes under control. Offer your support by joining them on a brisk walk as often as you can.

^aSTVM: short text or voice message.

^bPM: phone messaging.

^cPM+FF: phone messaging plus social support from family members and friends.

^dPA: physical activity.