The 1.5-rep push-up is a more difficult variation of the push-up, commonly used to train for military and tactical physical fitness tests. It builds upper-body muscle and strength, emphasizing the chest, core, upper back, triceps, and shoulders.
Benefits
Strengthens the chest, triceps, shoulders, and core
Increases upper-body strength and core stability
Engages lower-body muscles to maintain plank position
More difficult progression of the standard bodyweight push-up
Can add additional pauses or manipulate tempo to increase difficulty