Ernstige jongeman in activewear doet 's morgens oefeningen en strekkende benen voor joggen, twintiger jaren pensive mannelijke loper doet oefeningen voor het lagere lichaam houden van een gezonde levensstijl en het bereiken van vitaliteit - Stockfoto’s en -afbeeldingen

Serious caucasian man in tracksuit stretching lower body muscles having morning workout for wellness and vitality, strong sportsman keeping healthy lifestyle having morning training for slimming

Side view of determined strong guy trainer in tracksuit and sneakers performing jump squats during cardio workout on stadium against tribune

Young strong male athlete doing exercises for warming legs on running workout standing on stadium in morning, 20s caucasian sportsman in grey tracksuit having workout reaching fitness goals

Side view of full length muscular sportsman in sportswear standing on track and doing stretching exercises on stadium during workout

Low angle of full body young sprinter in tracksuit and sneakers training alone on running track of empty stadium against cloudy sky

Determined caucasian male in activewear doing morning warming exercises for legs squatting, serious strong sportsman in tracksuit spending time on training and losing calories weight on stadium

Serious male in active wear doing squats on morning workout determined on results and slimming, young 20s handsome man concentrated on doing exercises keeping healthy lifestyle and flexibility

Full length of young determined male runner in tracksuit warming up and doing backward lunges exercise before starting jogging on stadium

Side view of full body strong athletic man in sneakers jogging along sidewalk and looking away while listening to music through earphones and training in morning

Side view of full body powerful man in sneakers training on sports ground and stretching arms on sling trainer while looking away

Ground level of guy sitting on ground on stadium with bottle of water and relaxing after running exercise on street

From below of serious male athlete with earphones and cellphone in hand chilling during break and checking heart rate after run

Side view of young African American athletic male sitting on stairs near backpack and listening to music in earphones while looking away

Fit well built African American male in sportswear stretching legs on wooden sidewalk in front of skyscrapers in morning looking away

Strong energetic male runner in tracksuit enjoying active and healthy lifestyle have cardio workout for keeping perfect body shape, backlit of Caucasian sportsman training at stadium stairs in morning

Athletic adult strong African American male in gloves surfing mobile while training in gym with gray wall on background in daylight