When men lift weights overhead with a shaky Earthquake bar, they wobble more than when using a regular or slightly shaky bar — their balance gets a tougher workout.

27

Pro

0

Against

Evidence from Studies

Supporting (1)

27

Community contributions welcome

27

Activity of Shoulder Stabilizers and Prime Movers During an Unstable Overhead Press.

Cross-Sectional Study

Human

2020 Jan

The study found that using a shaky Earthquake bar during shoulder presses made people sway more than with other bars, which means it was harder to balance—just like the claim says.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Activity of Shoulder Stabilizers and Prime Movers During an Unstable Overhead Press.

Score: 27

DOI: 10.1519/JSC.0000000000002660

Similar Assertions

When guys lift weights overhead using a shaky bar with weights swinging off it, their core and shoulder muscles have to work harder than when using a regular, steady bar.

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When guys lift weights overhead with a shaky bar, their back muscles work harder—but not all wobbly bars have the same effect. One type makes certain muscles fire more, while another type ramps up even more muscles, showing that not all unstable bars are the same.

27

0

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