Man with Down Syndrome running on treadmill

home control fitness exercise healthy caucasian workout man strength motion speed strong running gym usa disabled independent photography exercising lifestyles disability treadmill massachusetts on the move north america exercise equipment one person indoors vertical young men boy looking down 20s color image only men full length young adult one man only sports training caucasian appearance developmental fitness club down syndrome trisomy 21 one young man only 25 29 years exercise machine genetic disorder ds front view north andover dns healthy club