A female athletic training is demonstrating for her students how to do an exercise called the "mountain climber".
A girl is demonstrating how to do the mountain climbers exercise.
A woman with both hands placed flat on the floor is seen running on the spot.
A woman demonstrates a planking exercise that is used by mountain climbers.
A woman is in a gym, doing leg-ups in a plank position.
A woman is on the hands rotating the feet front and back.
A woman does mountain climbers on the floor of an indoor gym.
A woman in workout apparel is doing a mountain climber exercise.
A person is on a floor and doing moutain climbers exercise.
A woman demonstrates how to do the mountain climbers workout.