Lie on your back on the floor with knees bent and feet flat. Hold a kettlebell in one hand at chest level with your elbow resting on the ground. Keep your core braced and wrist neutral. Press the kettlebell straight up until your arm is fully extended, controlling the weight throughout the lift. Slowly lower it back down until your upper arm gently touches the floor, then pause briefly before pressing again. Repeat for the desired reps, then switch sides while maintaining stability and avoiding lower back arching.
Log your kettlebell one arm floor press sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.