Atomic Push-Up exercise
A push-up combined with a knee tuck, usually using suspension straps, challenging upper body and core strength.
Updated By PumpPal

How to perform Atomic Push-Up
- Assume a plank position with feet in suspension straps.
- Lower your chest to the floor, performing a standard push-up.
- Press back up to plank position.
- Bring your knees towards your chest in a tuck motion.
- Extend legs back to plank position.
- Repeat the push-up and knee tuck sequence.
What is Atomic Push-Up?
The atomic push-up combines a suspension push-up with a suspended knee tuck. With the feet held in straps, each repetition alternates an upper-body press and a controlled pull of the knees toward the chest, making it a demanding chest, triceps, shoulder, and core exercise.
What muscles does Atomic Push-Up work?
The chest, triceps, and front shoulders produce the push-up. The abdominal wall, hip flexors, serratus anterior, upper back, rotator cuff, forearms, glutes, quadriceps, and spinal stabilizers control the suspended plank and knee tuck.
Atomic Push-Up form cues and common mistakes
- Secure the suspension trainer to a rated anchor, set both foot cradles evenly, clear the floor, and test the straps before loading them.
- Begin in a rigid plank with the shoulders over the hands and enough distance from the anchor that the straps remain controlled rather than rubbing or swinging.
- Perform a smooth push-up without letting the hips sag, then return to a stable straight-arm plank before starting the knee tuck.
- Pull both knees toward the chest while keeping the shoulders supported and the pelvis controlled, then extend the legs without snapping the lower back into an arch.
- Regress to a suspension push-up, floor knee tuck, or mountain climber and stop for sharp wrist, shoulder, chest, hip, or lower-back pain.
How to add Atomic Push-Up to a workout
Use atomic push-ups as a compound upper-body and core exercise after learning both parts separately. Start with 3 to 4 sets of 5 to 10 controlled repetitions, leaving 2 to 3 reps in reserve. Add reps before increasing instability or range.
Frequently asked questions
What muscles do atomic push-ups work?
They train the chest, triceps, and front shoulders during the push-up and the abdominal wall and hip flexors during the tuck. The serratus, upper back, rotator cuff, forearms, glutes, and legs stabilize the suspended plank.
How can I make atomic push-ups easier?
Practice suspension push-ups and floor knee tucks separately, reduce push-up depth, or perform a controlled suspended plank without the tuck. Combine the parts only when the straps stay steady.
What is the difference between an atomic push-up and a suspension push-up?
A suspension push-up uses the suspended foot position but only performs the press. An atomic push-up adds a knee tuck after the push-up, increasing the core and hip-flexor demand.
Use controlled movement and an appropriate variation for your current ability. Stop if an exercise causes sharp pain, and seek qualified guidance when needed.