John Kennedy actually said...
I request officials of the Government, and I urge parents, young people, our schools, and interested national and local organizations, to use all appropriate means now and during that week to promote programs and activities demonstrating the importance of youth fitness to the end that we may assure the continuing strength and well-being of our people.
Context
Proclamation 3456—National Youth Fitness Week, 1962
03/25/1962