How to jm press

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Last updated: April 4, 2026

Quick Answer: The JM press, or close-grip bench press, is a compound exercise primarily targeting the triceps. To perform it, lie on a flat bench with your feet flat on the floor, grip an EZ bar or barbell slightly narrower than shoulder-width apart, and lower it to your mid-chest while keeping your elbows tucked in. Press the weight back up, focusing on triceps contraction.

Key Facts

What is the JM Press?

The JM press is a compound exercise that is highly effective for building triceps strength and size. It's named after competitive bodybuilder Jim Morris, who popularized the movement. While it shares similarities with the close-grip bench press, the JM press involves a unique movement pattern that places a greater emphasis on the triceps brachii. It's considered an advanced exercise and requires good shoulder and elbow health, as well as proper technique to perform safely and effectively.

How to Perform the JM Press

Performing the JM press correctly is crucial to maximize its benefits and minimize the risk of injury. Here's a step-by-step guide:

Setup:

Execution:

  1. Begin by lowering the bar towards your upper chest or forehead. The key here is to keep your elbows tucked in close to your body, pointing slightly backward. Avoid letting your elbows flare out to the sides, as this will shift the emphasis away from the triceps and put unnecessary stress on your shoulder joints.
  2. As you lower the bar, aim to bend your elbows, allowing the bar to descend in an arc towards your head. This is where the JM press differs from a standard close-grip bench press; the bar path is more controlled and involves a slight flexion at the elbow.
  3. Once the bar reaches the top of your forehead or just above your upper chest, pause briefly.
  4. From the bottom position, explosively press the bar back up towards the starting position. Focus on squeezing your triceps at the top of the movement. The primary muscles engaged are the triceps, with secondary involvement from the chest and shoulders.
  5. Ensure your elbows remain tucked throughout the pressing motion.

Tips for Optimal Performance:

Variations of the JM Press

While the standard JM press is highly effective, there are variations that can be used to target the triceps differently or accommodate individual needs:

Benefits of the JM Press

Incorporating the JM press into your training routine can yield several significant benefits:

Who Should Perform the JM Press?

The JM press is best suited for intermediate to advanced lifters who have a solid foundation in basic pressing movements and understand proper lifting mechanics. It's an excellent addition for individuals looking to specifically enhance their triceps development, whether for bodybuilding, strength training, or general fitness goals. However, individuals with pre-existing shoulder or elbow issues should exercise caution and consult with a healthcare professional or experienced trainer before attempting this exercise.

Potential Risks and How to Avoid Them

As with any exercise, there are potential risks associated with the JM press if not performed correctly:

To mitigate these risks, always prioritize proper form over lifting heavy weight. Start with lighter weights to master the technique, use a spotter if available, and listen to your body. If you experience pain, stop the exercise immediately.

Sources

  1. Triceps brachii muscle - WikipediaCC-BY-SA-4.0
  2. JM Press - Exercise Guidefair-use
  3. How to Do a Close-Grip Bench Pressfair-use

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