id	keyword
ajpdis-2217	gymnastics
ajpdis-2217	sports
ajpdis-2217	journal
ajpdis-2217	research
ajpdis-2217	american
ajpdis-2217	children
ajpdis-2217	development
ajpdis-2217	sciences
ajpdis-2217	international
ajpdis-2217	sports gymnastics
ajpdis-2217	exercise