slender fit woman training with dumbbells

800metres active activity athlete athletic athletics body bodybuilder bodybuilding brunette cardio championship dumbbell dumbbells equipment exercise fashion fit fitness flexibility footwear hard heptathlon instructor jogger jumping lunges marathon motion motivation muscles muscular outdoor outfit outside park person physical pilates race recreation runner running sexy shaping slender slim space speed sport sports sportswear sporty sprint stadium stamina strength stretch strong style sun text track trainer training wellness woman working workout