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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Electrical Shock On Left Arm When Approaching Target Heart Rate?

i've recently started using the treadmill at the gym, and i haven't done anything for years. when i approach my target heart rate (123 and up) i get a feeling of small electrical shocks on the outside of my left arm. i do not feel any other symptoms. when i maintain below 120 its fine.
Wed, 22 Mar 2017
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  Anonymous's Response
's  Response
Sir i think these should is are muscle twitching or fasciculation . You need to confirm it then you please get your proper treadmill test in cardiac lab. Some routine blood investigations to see electrolytes and ECG 12 lead.
i am sure if you continue your work out it will gradually went off.
Best regards
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What Causes Electrical Shock On Left Arm When Approaching Target Heart Rate?

Sir i think these should is are muscle twitching or fasciculation . You need to confirm it then you please get your proper treadmill test in cardiac lab. Some routine blood investigations to see electrolytes and ECG 12 lead. i am sure if you continue your work out it will gradually went off. Best regards