why does a limb shake when it's lifting (I'm a begginer)?

Because it's attached to a DYEL

>>38998840
yeah, but what's the reason (biologically)?

>>38998850
Weak stabilizer muscles

>>38998872
that's interesting.
got any link to read?

>>38998831
I was told in a specialist PE class in high school that it was your body trying to figure out which muscles it needs to use. It quickly switches between muscles which makes you shake.
Once you get used to the exercise this won't happen. Happened to me when I started lifting too.

>tfw benching 65 lbs during your first time in the gym
>tfw arms shaky as fuck
>tfw barely got to half ROM before pressing back up
>tfw struggled to get 4 reps
>

>>38998906
Although that is pretty embarrasing, dont stop lifting. Remember why you started

>>38998900
That specialist PE is a FUCKING RETARD

>>38998900
>>38998958
I was told the exact same thing by a nutritionist and physical therapist. It happens when the body is unused to a type of exercise and the muscles aren't fully aware on how to contract.

>>38998958
I'm open to proof that this is incorrect, not just blind accusations

>>38998831
It means you're turning the muscle on