We are assuming that a Fitness application is in a development phase. You may choose the most suitable acceptance Criteria format Given$/$When$/$Then or Checklist

Task$\_1$: Create a Development Team amongst your team members

Task$\_2$: Create user stories for the fitness app. Write complete user stories $(10$ per group member$)$ and $(1)$ acceptance criteria for at least $(1$ user story per member$)$ for your Product Backlog.