In order to spare your joints (elbows and shoulders) in SUP you can play with the length of the paddle or choose a paddle with a flex adapted to your practice.
Of course, your technique can also be a great relief for your joints. A simple spreading of the hands will have very beneficial effects as Coolas explains to us on our forum with an image that is worth more than a long speech.
“Also look at the spread of your hands. Spreading your hands on the stick acts like lowering the gears of a bicycle: you have more leverage and therefore much less efforts and stress on the joints, at the price of lesser amplitude of movement. In surfing (I do not race), I spread my hands to provide intense efforts (difficult takeoffs) without losing all my energy, and on the contrary I put them closer together to gain speed once launched. ”