The shoulder press with earthquake bar is an overhead press variation that uses a special flexible bar or dumbbell with elastic bands and hanging weights. The moving and unstable load creates a vibration effect during the press, requiring the shoulder muscles and stabilisers to continuously correct to keep the bar stable.
This instability causes not only the large shoulder muscles to work, but also actively involves the smaller stabilising muscles around the shoulder joint. This makes the exercise very effective for improving dynamic shoulder stability and neuromuscular control.
Aims to strengthen shoulder muscles and improve dynamic stability of the shoulder joint. Activates the rotator cuff, deltoid and scapular stabilisers. Supports safe and controlled overhead power development.
Earthquake bar or flexible barbell
Elastics with hanging weights or kettlebells
Flat surface or rack
Stand upright with feet shoulder-width apart
Keep the earthquake bar at shoulder height
Elbows positioned under the bar
Core tightened
Shoulders low and stable
Look ahead
Push the bar up above the head in a controlled way
Stabilise the vibrating movement of the weights
Fully extend the arms above the head
Keep shoulder blades actively stabilised
Lower the bar slowly and in a controlled manner
Maintain control of unstable load throughout movement
✓ Keep the bar as stable as possible
✓ Core continuously tightened
✓ Shoulders low and actively stabilised
✓ Move in a controlled manner despite instability
✓ Exhale during the press
✗ Hollowing the lower back
✗ Shoulders raised towards ears
✗ Using weights that are too heavy
✗ Uncontrolled movement of the rod
✗ Ignoring pain in shoulder or wrist
The shoulder press with earthquake bar is used to improve dynamic shoulder stability and neuromuscular control during overhead power movements. The exercise is especially suitable for athletes who want to improve their shoulder control under unstable conditions.
Within rehabilitation, this exercise can be used in later stages of recovery when sufficient strength, mobility and basic stability are present. Due to the unstable load, the exercise requires good technique and controlled execution. Application, loading and progression should always take place in consultation with a physiotherapist or other qualified professional, to ensure that the exercise is safe and tailored to individual load capacity, symptoms and recovery status.
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