Machine Assisted Chest Dip
What Is the Machine Assisted Chest Dip?
Machine Assisted Chest Dip is a compound exercise that primarily targets the chest, with secondary engagement of the triceps, shoulders, and back. It is a beginner-level movement performed on a dip machine whose weight stack works as a counterweight: the pad you kneel on pushes up under your knees, so the more weight you select, the less of your body weight your arms have to lower and press.
This exercise is a variation of the classic chest dip, with the machine offering support to help control the movement, reduce body weight, and improve stability. The main difference between the Machine Assisted Chest Dip and the Machine Assisted Triceps Dip is the body positioning. For chest dips, you lean slightly forward and allow the elbows to flare out a bit, shifting the focus to the chest muscles. In contrast, the triceps dip involves a more upright posture with the elbows kept close to the body to emphasize the triceps. Neither version isolates one muscle, so both still train the chest, triceps and front of the shoulders together.
Incorporating this exercise into your routine strengthens the pushing muscles, improves upper body strength, and enhances performance in other pressing movements like the bench press or push-ups. Because the assistance can be changed in small steps, it suits beginners who cannot yet handle their full body weight on the bars, lifters returning after a break, and anyone who wants controlled reps at a sensible depth. It is usually placed after a main press on a chest or upper-body day.
The natural progression is to reduce the assistance over time until the bodyweight Chest Dip is within reach. If the movement still feels too hard even with plenty of assistance, build pressing strength first with push-ups or the Machine Bench Press.
Muscles Worked
- Pectoralis Major
- Primary
- Deltoid
- Medium
- Latissimus Dorsi
- Medium
Instructions
- Set the assistance by choosing a weight on the stack. More weight takes more of your body weight and makes the dip easier.
- Step up onto the footrests, grip the parallel handles with your palms facing inward and press up until your arms are straight.
- Place your knees on the pad one at a time, with your knees bent and your feet behind you, and let the pad take part of your weight.
- Press the handles down so your shoulders sit away from your ears, brace your core and lean your torso slightly forward.
- Inhale and bend your elbows to lower yourself slowly, letting them travel back and slightly out as your chest moves forward.
- Stop when your upper arms are about parallel to the floor, or a little higher if the front of your shoulder feels strained.
- Exhale and press through your palms to straighten your arms, keeping the forward lean, until you are back at the top.
- Repeat for the desired number of reps, then step back onto the footrests one foot at a time with your arms straight before letting go.
Common Mistakes
Insufficient Forward Lean
Keeping the torso too upright shifts the focus to the triceps, so lean slightly forward to engage the chest.
Elbows Flaring Straight Out
Letting the elbows point out to the sides stresses the front of the shoulder, so let them travel back and only slightly out.
Sinking Below Parallel
Dropping until the shoulders fall well below the elbows pushes the shoulder into its most vulnerable stretched position, so stop when your upper arms are about parallel to the floor.
Partial Range of Motion
Stopping well short of parallel leaves the chest with little stretch and work, so lower yourself until your upper arms are roughly level with the floor.
Shrugging the Shoulders
Letting the shoulders creep up toward the ears at the top or bottom loses shoulder stability, so keep pressing the handles down and your shoulders away from your ears.
Bouncing at the Bottom
Dropping fast and rebounding out of the stretch loads the shoulder and pectoral tendon abruptly, so lower under control and press up smoothly.
Injuries
Machine Assisted Chest Dip is a low risk exercise when performed with proper technique. The counterweight takes part of your body weight off your arms, but the bottom of every rep still takes the shoulder into deep extension, and that is where most dip-related shoulder trouble starts. A motion-capture study of experienced men doing unassisted bar dips found the bottom of each rep reached about 88% of the maximal shoulder extension range they showed in a separate test, so depth is the part of the dip to manage.
The front of the shoulder, the pectoral tendon near the armpit and the elbows take the most strain, especially when you sink below parallel, let the shoulders roll forward at the bottom or drop into the stretch quickly. Lower until your upper arms are about parallel to the floor and no further, keep your chest up and your shoulders down and back, and control the descent. Straighten your arms fully at the top without snapping the elbows, and add sets and reps gradually rather than jumping in with high volume.
If your shoulders complain, add assistance and shorten the range so you stop a little above parallel, or switch to a Machine Bench Press or Push-Up for a while. Progress by removing assistance in small steps, and move on to the bodyweight Chest Dip only once you can control full-depth reps with little help.
Stop the set if you feel sharp pain at the front of the shoulder, a pop or pulling pain in the chest near the armpit, pain along the breastbone, or pain in the elbows.
- Primary Focus
- Chest
- Equipment
- Machine and body weight
- Modality
- Strength
- Difficulty
- Beginner
Alternative Exercises
Frequently Asked Questions
- Q: How does this differ from the Machine Assisted Triceps Dip?
The chest dip uses a forward lean with the elbows flaring slightly out to emphasize the chest, while the Machine Assisted Triceps Dip keeps the torso upright and the elbows close to the body to emphasize the triceps. Both still work the chest, triceps and front of the shoulders, so the difference is emphasis rather than a different set of muscles.
- Q: Is this exercise suitable for beginners?
Yes. The machine assistance makes it ideal for beginners, allowing you to build strength before progressing to unassisted dips.
- Q: How much assistance should I use?
Choose the least assistance that still lets you reach parallel depth and finish your target reps with control. On this machine more weight on the stack means more help, so lower the weight a step once you can beat your rep target on every set.
- Q: Why do dips hurt the front of my shoulder?
It is usually from going too deep or letting the shoulders roll forward at the bottom. Add assistance, stop when your upper arms are about parallel to the floor and keep your chest up, and if the pain continues, switch to a Machine Bench Press for a while.
- Q: When am I ready for unassisted dips?
Once you can do 8 to 10 controlled reps to parallel depth on one of the lightest assistance settings, try the bodyweight Chest Dip. If you cannot yet get a few clean reps, go back to the machine and keep trimming the assistance.