Bobby Lockwood teaches Martin how to do a handstand
14 August 2014 Last updated at 12:28 BST
BBC One's spectacular new show Tumble somersaulted into action last weekend.
A contender from the programme Bobby Lockwood, star of CBBC's Wolfblood, invited Martin over to his training gym to teach him how to do a handstand.
Here's how Newsround's very own tumbler got on.