DESIGNING AN AUXILIARY DEVICE AND ITS IMPACT ON LEARNING THE SKILLS OF ANGULAR SUPPORT AND OPEN SUPPORT FOR HANDSTAND PUSH-UPS ON THE PARALLEL APPARATUS IN ARTISTIC GYMNASTICS FOR BUDS. IDPR [Internet]. 2024 Feb. 10 [cited 2024 May 19];23(1):273-85. Available from: https://idpr.org.uk/index.php/idpr/article/view/139