A member asked:

Last week i went in to the gym and did curls. i usually hit 10 reps of 30lb with some effort but my right arm suddenly couldnt do 10 at 20lb. any ideas? no weakness or pain?

2 doctors weighed in across 2 answers
Dr. Clarence Grim answered

Specializes in Endocrinology

Need to examine. May have ruptured biceps. Or tired.

Answered 4/12/2021

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If you had a sudden pain in the arm a biceps rupture is possible, but not likely without noting pain. I would like to do a neurological examination to rule out a problem with the nerves to the arm. See a doctor

Answered 4/12/2021

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