How Fenix detect the muscles worked in a strengh exercice

There aren't any strength exercise sensors, to my knowledge. The Fenix only "knows" what muscles you worked out when you do structured workouts; e.g. when you have a workout that specifically is set up to do pushups, then pullups, then arm curls, etc. Without that, the watch has no idea what kind of exercises you did (or what muscles you worked), it just generally records calories and exercise load and such.

To my knowledge, I don't think Fenix shows muscle groups exercised (yet). I know the new Venu 2 does, and I read that Fenix will at some point, but I don't think it's there yet. OR maybe it is? I honestly haven't looked.

It is available in GCM for Fenix 6 users as well as long as you log an exercise. You get to see the muscle map, which highlights which muscles / muscle groups you've worked on based on the input you feed it (i.e. exercises you mark you did)

ANALIA73 said:

how does Fenix 6 detect the muscle

It can't detect which muscle is being worked. It will rely on you to tell it which muscles or exercise you are using. There may be videos showing which muscle will be worked if you do a particular exercise but your Garmin will not be able to tell you if those muscle were worked or not.

Hi. Thanks for you answer.  I have a FEnix 6 PRo and it shows the muscle, but the issue ( or my question ) is because I do not use or enter any workout, I just select the option "Free" and I start my routine. When I finish,  the Fenix 6 shows me a graphic with the muscle worked, but I do not know how it detected them. 

Thanks for your answer, but the I can not input or set any exercice, I just use the option "free" when I stsrt the exercice. When I finish, GC shows me  some muscle that I worked and I do not understand how it detected them 

Same for me. I use the "free" option too, which allows me to edit the exercise after I finish working out in GCM => you get to scroll / search through a list of all possible exercises for the whole body. Once you do select a few, the actively used muscle groups will get highlighted on the muscle map.

It is actually quite handy to enter the reps and weight during the training if you are using the "strength" setting.
I choose "strength", then use the "free".
I then start it and do my first set of reps.
When i am done with that set, i push the lower right button and it will start counting time for resting. Directly after i pressed that button it will show the possibility to edit the set by pressing the left bottom button. You can then correct the amount of repetitions as well as enter the weight used.
After the resting period, you press the right lower button again and perform more reps and then redo the procedure (lower right button to enter resting, press lower left button to edit amount of reps and weight and so on).

After that, in Garmin Connect you can then edit the type of exercise you performed, for most arm based exercises where it can register a movement it will try to interpret and suggest what you did, but in most cases it does not properly match the exercise you did.

For any leg exercise you usually always have to select the proper type yourself.
When you save your activity it will, based on the exercises you have chosen, show an overview of which muscles it activated.


I find it very handy and it lets me keep track of reps, sets, weights and type in the end and have history of that.

I would guess that it analyses the movements and then compares them to exercises it knows in its database which means if you do curls and it matches the movements of curles it will log that and match up what muscles are used.

Thanks a lot!! that is the answer that I was expecting. Thank you