Crunch
Core
None
THE CUE
Maintain proper form and full range of motion through each rep.
MUSCLES WORKED
COACH'S NOTE
Shoulders off floor, short range
How Fittrexx programs it
bodyweight
STYLE
No equipment
WHERE
🔒 In the app
SETS × REPS
🔒 In the app
REST
Fittrexx writes the sets, reps, rest and starting weight for crunch from your goal, experience and gear, then adjusts them as it learns how you recover.
More for core
IN THE APP
Log crunch in seconds.
Weight × reps per set, your previous set shown beside it, and a live bar that tells you whether this session beats last time.
Download free on iPhone