ritampatra
New member
Ok ....now...I wanna follow a abs cardio programme from fitness blender....where I want to substitute all the cardio into jumping jacks....because I am haging problem in flexing my knees...with the other cardios..
Is dat ok !? How much effective jumping jacks are !!?
Thank you...
Is dat ok !? How much effective jumping jacks are !!?
Thank you...

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