Alicia Weber performed 1,140 consecutive knee tucks.
Silvio Sabba bent his knees 64 times in one minute while balancing on a balance board.
Petr J. performed 18 "back flip-knees-back" somersaults on a trampoline.
Laurent K. performed 134 keepie uppie knee touches using a tennis ball.
Suresh Gaur completed 45 alternate lunges in one minute.
Laurent K. performed 791 keepie uppie knee touches using a size 3 soccer ball.
Laurent K. performed 138 keepie uppie knee touches in one minute.
Petr J. performed 12 back flip-knee-front flip somersault tricks on a trampoline.
Petr J. performed 34 "back flip to knees" somersaults on a trampoline.
William C. completed 16 alternate lunges in one minute while holding two 22.5-kilogram dumbbells.
Alicia Weber performed 151 arms crossed bent knee sit-ups in three minutes.
Suresh G. knelt for one minute, 3.01 seconds while holding both of his heels.
Saar K. balanced a tennis racquet vertically on his knee for 2.65.
Shubham P. walked in a circle on his knees in 2.06 seconds while holding a lotus pose.
Molly F. performed 38 knee skips on a trampoline.
Suresh G. balanced on his knees for three minutes, 22.21 seconds while holding a lotus pose.
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