DYNAMICS OF DEVELOPMENT OF SPEED AND STRENGTH QUALITIES OF VOLLEYBALL PLAYERS 13-16 YEARS OLD WITH DIFFERENT RATES OF PHYSICAL DEVELOPMENT AND APPROACHES TO THEIR IMPROVEMENTRead more
INCREASING A PHYSICAL FITNESS LEVEL OF POLYATHLETES AGED 12-13 YEARS BY CONSTRUCTING THE TRANSFORMING BLOCKS OF SELECTIVE ORIENTATIONRead more
