Short answer: Choose planks to practice static trunk endurance and push-ups for chest, triceps and shoulder strength plus core stability. Most programs can use both, but push-ups provide the larger overall training stimulus.
Muscles worked
Both use abdominals, glutes and shoulder stabilizers. Push-ups additionally move through elbow and shoulder range using chest and triceps.
For core training
Planks make it easy to focus on bracing. Push-ups challenge the same alignment under movement. The plank-to-push-up combines both positions.
For strength
Push-ups are more effective for pressing strength. Planks are limited by time unless leverage changes.
Simple pairing
Perform 3 sets of 6–15 push-ups followed by 2 sets of 20–45 second planks.
Let movement and control share the same quest
RepSaga turns the push-up sets into attacks while planks support the rigid body behind every rep.
Frequently asked
Can planks replace push-ups?
No. Planks do not provide the same dynamic chest and triceps work.
Do push-ups work the core?
Yes, the trunk maintains a rigid body throughout each rep.