exercise based on time, not distance, training tip - white chalk text on a slate blackboard with a dumbbell

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Size: 5400px × 3602px
Photo credit: © Marek Uliasz / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: advice, blackboard, chalk, chalkboard, concept, distance, dumbbell, exercise, fitness, inspiration, motivation, reminder, sign, texture, time, tip, training, wood, workout