Athlete holding a deep wall sit against a concrete wall, thighs parallel to the ground, hands off legs
#86: 100 Wall Sits (One Minute Each)

#86: 100 Wall Sits (One Minute Each)

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Athlete mid-air in a jumping lunge, rear knee elevated, front quad engaged
#71: 100 Jumping Lunges for Legs That Last

#71: 100 Jumping Lunges for Legs That Last

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Athlete mid-session on stair machine, sweat visible, overlay text- 100 Floors Stair Climb Challenge
#18: 100 Floors Climbed on a Stair Machine

#18: 100 Floors Climbed on a Stair Machine

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Athlete mid-walking lunge on an outdoor path — overlay text-100 Walking Lunges Challenge
#9: 100 Walking Lunges for Lower Body Endurance

#9: 100 Walking Lunges for Lower Body Endurance

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