Lie on your back with your hips and knees bent at 90 degrees (3-month position). Hold a kettlebell with both hands above your chest, arms fully extended. Keeping your core tight and lower back controlled, slowly lower the kettlebell in an arc behind your head while maintaining straight or slightly bent elbows. Stop when you feel a comfortable stretch in your lats and chest, then pull the kettlebell back over your chest to the starting position in a controlled motion. Avoid arching your lower back.
Log your kettlebell pullover 3 month position sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.