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Diamond push-up

Hands form a triangle under the chest — maximum triceps engagement.

Execution

  1. Thumbs and index fingers touch, forming a "diamond" triangle.
  2. Hands directly under the lower chest, not too far down toward the belly.
  3. Keep the elbows close to the torso, pointing back.
  4. Lower the chest to the diamond, then press straight up.

Tips

  • Beginners: get comfortable with knee-diamonds before attempting the full version.

The toughest hand position

In the diamond push-up, the thumbs and index fingers form a triangle under the chest. That sounds like a pure triceps exercise, but it's more than that: in the most-cited EMG study on the topic (Cogley et al., 2005), the narrow hand position produced the highest activation — in both the triceps and the pectoralis major. The wide position came in lowest for both.

The reason is mechanical: with a narrow hand position, the elbows travel further, the upper arm moves through a larger range of motion, and both muscles work over a longer distance. The diamond push-up is therefore not the "triceps variation" alongside the standard — it's simply the harder version of the same pattern.

Execution

The hands sit under the chest, not under the face. The elbows stay close to the torso and almost brush it at the bottom position. The body forms a straight line. Because the base of support is narrower, the exercise is also a core challenge — any sideways tilt shows up immediately.

Common mistakes

  • Hands too far up. Under the face instead of under the chest shortens the range and loads the shoulder unfavorably.
  • Elbows flare out. This defeats the purpose of the variation and turns it into a sloppy standard push-up.
  • Ignoring wrist pain. The narrow position demands a lot of wrist extension. Anyone with discomfort here should switch to knuckle push-ups or parallettes.

Where it fits

As a progression after the standard push-up, the diamond push-up is one of the most effective variations that needs no extra equipment. The triceps make up roughly two-thirds of upper-arm volume — if you want to target the arms specifically, this is the right choice. Three to four sets of five to twelve reps is a realistic range; the rep count is typically noticeably lower than for the standard push-up.