TY JOUR TI HEALTH-SAVING TECHNOLOGIES IN PHYSICAL EDUCATION LESSONS OF STUDENTS OF A SPECIAL MEDICAL GROUP IN THE SYSTEM OF SECONDARY PROFESSIONAL EDUCATION KW health-saving technologies KW special medical group KW students KW badminton KW coordination abilities JO Scientific notes of P. F. Lesgaft University AU Semyannikova, V.V. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft