HR drops out during strength training

Hi,

Does anyone else experience hr drop outs during strength training? My heart rate (which comes from a Scosch IR band) will drop out during strength training - it will drop off hard (like 30-50 bpm drop) for 10-30 seconds and then it will come back up.

I remember reading about this in another post awhile ago - but I have not been able to find that post.

Anyone else experiencing this or have a possible solution

thanks

0 TrippyZ over 6 years ago

Have you contacted the manufacturer of the device?

0 carl.andersson over 6 years ago

Used to happen to me all the time with my chest strap. It's related to the poor antenna design on the F5 so it would lose the connection any time I extended my arm fully away from my body (which is often when doing strength workouts).
I can confirm that the F5+ has no issues at all with keeping a connection to my chest strap

0 JoeMilewicz over 6 years ago

Unfortunately all wrist based heart monitors aren’t really suitable for strength training. Try tightening the strap or use chest straps.

0 Crispin_Ellisdon over 6 years ago

I tried moving my Scosche Rhythm+ to many different places up and down my arm, but none of them work for strength training (get exactly the same drop to an obviously incorrect low HR). The only way I’ve found to get reliable HR whilst strength training is using a good old ECG chest strap HR monitor; none of the optical HR options work (the Scosche Rhythm+ does just about work for rowing when placed on the upper arm though).

0 C966 over 6 years ago

In strength training, the contraction and relaxation of your arm/forearm muscles during your sets causes intermittent changes in pressure in the blood vessels to the arm throwing the light based wrist sensors off. Chest straps on the other hand, rely on detecting the electrical activity of the heart and are not only more precise but also unaffected by the type of activity.