To set up reminders for the weekly OSTRC questionnaire, go to Team Settings-Reminders, open the Daily Reminders section and look for the Weekly health survey reminder line. Then, select the type of reminder (SMS/email), select the day and time of day of sending and click  Save. 

By default, OSTRC Questionnaire reminders are sent every day, until the athlete completes the questionnaire. If you wish to stop reminders after a specific number of days, select the appropriate option in the Stop after section.