Sit-Up trainer is the best way to track your sit-ups. Sit-up trainer measures the angle of each sit up and gives you feedback to ensure that you are doing them properly. It also times each sit-up session and graphs your progress.
Sit-Up trainer is the best way to track your sit-ups. Sit-up trainer measures the angle of each sit up and gives you feedback to ensure that you are doing them properly. It also times each sit-up session and graphs your progress.