About us Latest Blogs Sport Aberdeen Alphabet Workout - J is for "Jumping Jacks" Day 10 of the Sport Aberdeen Alphabet Workout leads to the letter J and J stands for "Jumping Jacks". We've all been doing jumping jacks since nursery but just in case you forgot, here's how to do them: Start standing with your arms by your sides and your feet hip-width apart. Jump off the ground and spread your legs so your feet land wider than shoulder-width apart, simultaneously taking your hands above your head. Once you land, go into another jump, bringing your arms and legs back to the starting position before you land. Repeat You know the drill. Same time tomorrow for K.