How to do Cross Crunch : Exercise Video
                    
                     
                                        
                    
                            
                        
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                                1
                                    From standing with arms bent, hands behind your head, one leg slightly off the ground
                             
                        
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                                2
                                    Bring your knee up and across your body while bringing opposite elbow to touch your knee
                             
                        
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                                3
                                    Return to start position with-out touching your foot to the ground. switch sides for each segment