Kevin Taylor's martial arts student, Keegan O'Keefe, completed 120 knee smashes in one minute.
Sam S. knelt on an exercise ball for 51.15 seconds
Pramila D. held a forehead-to-knee pose for 21.25 seconds while standing on one leg.
Alicia Weber performed 230 arms crossed bent knee situps in five minutes.
Doug McManaman balanced a golf ball on a spoon held in his mouth for one minute, 40.01 seconds while balancing a golf ball on top of a water bottle on his knee and balancing a lacrosse stick on his thumb.
Alicia Weber performed 668 consecutive knee tucks.
Ahmad Amin Bodla performed 71 martial arts knee strikes in 30 seconds, targeting a dummy.
Natalie performed seven back flip-knee-front flip somersault tricks on a trampoline.
Natalie performed 16 "back flip to knees" somersaults on a trampoline.
Mason A. completed 22 catches juggling two balls with one hand while balancing on an exercise ball on his knees and spinning a basketball on a pencil.
Cool Juggler put a knee brace on in 26.12 seconds while balancing a tennis racket on his face.
Pramila D. performed a forehead-to-knee (Niralamba Paschhimmottasana) yoga pose for three minutes, 47.78 seconds. She dedicated the attempt to her yoga master and spiritual guide Dr. Hari Prasad Pokhrel.
Alicia Weber performed 153 feet-together, hands-at-knee straight leg pulses.
Tai Star balanced a cellphone on his knee for five minutes, 1.00 second while on a slackline.
Tai Star held his right knee with both hands for 13.41 seconds while standing on one foot on a slackline with a bird perched on his shoulder.
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