Preview Fit 42 days
Sit-Ups Challenge
Build to 200 sit-ups
Bent-knee sit-ups built up the smart way — a quick test, then progressive sessions to 200 in one set.
See app availability
This challenge is in the app catalog but is not open yet.

Inside the challenge
What you will actually do
- 01 One quick starting test places your level
- 02 Each session tells you the exact sets — tap to log them
- 03 Rest days are part of the plan; follow it to the full goal
Catalog preview
Keep Sit-Ups on your shortlist.
See app availability
This challenge is in the app catalog but is not open yet.