@@ShiYuqinumbe I'm a 56 year-old with weak arms, coz I only cycle and jog. The moment I took up badminton and start smashing with my old 2U stiff racket, I got tennis elbow that persisted for 9 months. Doctor asked me to stop playing badminton for 1 month before going back to play easy badminton first before smashing. What kind of racket should I buy to prevent getting tennis elbow again when I start smashing again?
I suffered from elbow pain too . As I like gym too , I found the elbow pain was coming from excessive wrist action. Later on , I correct my some posture , correct the way to uplift the racket from my back , connect mentally my finger to the grip , my pain has shifted and less severe than before.