© USA, New York City, Athletic man stretching leg by river

© USA, New York City, Close-up of athletic man stretching arm outdoors

© USA, New York City, Athletic man stretching arm in city

© USA, New York City, Athletic man stretching arm outdoors

© Athletic man stretching in park

© USA, New York City, Athletic man stretching arm by river

© USA, New York City, Athletic man stretching leg by river

© USA, New York City, Athletic man stretching leg outdoors

© Shirtless man stretching on rocky lakeshore, Yorkshire, UK

© USA, New York City, Athletic man stretching leg by river

© USA, New York City, Athletic man stretching leg by river

© Full length of smiling woman stretching leg at beach

© Full length of woman lifting tire truck while exercising against wall

© Side view of woman stretching legs while standing on road by lake against mountain at park

© Woman with eyes closed stretching hands while standing against lake at park

© Female athlete exercising while sitting on grassy field at park

© Confident female athlete exercising while standing on grassy field at park

© Rear view of boy doing chin-ups on pole at yard against blue sky during sunny day

© Full length of silhouette girl doing handstand at beach against sky during sunset

© Man stretching arms while practicing yoga on field against mountains at Bridger-Teton National Forest

© Silhouette girl doing handstand at beach against sky during sunset

© Side view of man standing on one leg while practicing yoga on field at Bridger-Teton National Forest

© High angle view shirtless man with eyes closed practicing yoga at Bridger-Teton National Forest

© Man with arms outstretched practicing yoga on field against sky at Bridger-Teton National Forest

© Shirtless man with arms raised practicing yoga against mountains and sky at Bridger-Teton National Forest