Development of Science and Technology in Sports Through Test and Measurement Tools Shoulder and Wrist Android Based

The purpose of this study is to produce Android -based shoulder and wrist. This research was conducted on students the Faculty Sports Sciences North Sumatra PON athletes in December 2022. Types used were development with Research & Development (R&D) designs from Borg Gall. 9 stages, namely, (1) Information Collecting, (2) Planning, (3) Developing Preminary Form Product, (4) Field Testing, (5) Main Product Revision, (6) (7) Operational (8) (9) Final Revision. population by using Science Taekwondo Pelatda athlete. technique picking up purposive sampling a trial phase I 20 FIK II 30 Pelatda. Furthermore, I, totaling people showed 96% very feasible criteria, then 91% decent category. From results /feasibility tests test experts measurements, IT sports academics show category, so that it can be used. On basis data obtained, wrist equipment declared developed as tool measurement muscle