Isometric Ring Hold Arms At 90°

Johnny Grube doing a quick Isometrics ring hang arms at
about 90 ° for about 1 minute.

I came in under 1 minute I miss counted, I could have made it 7
more seconds but not much more.

It's a tough exercise at the end my arms where shaking, it's not an exercise I practice regularly.

Very good for the arms and the core.

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