PROTECT YOUR BACK!
It is essential to maintain an excellent posture when playing the guitar for short and especially long periods of time. Many guitar players neglect their lower back.
Guitar supports put the guitar in perfect position and the hands in perfect alignment with a nice straight back creating a very comfortable and healthy posture.
With a good guitar support you can play for hours pain free.
[I am not endorsing any of these but here are a few available on the market].
Ergoplay The “TAPPERT”
The “Barnett Guitar Support” [Now called “Sageworks”]
“Mundo Music Gear” Guitar Support
These are just a few guitar supports on the market for holding your body posture, arm, elbow, back,hand and guitar in perfect alignment.