ISBN-13: 9781569756058 / Angielski / Miękka / 2007 / 144 str.
GO BEYOND THE BALL WITH TODAY'S NEWEST STRENGTH AND BALANCE EXERCISES.
Balance training--or working out on unstable surfaces like the BOSU, ball and core board--forces you to use the deep, inner muscles that other workouts miss. These are the muscles that make you look sleek, toned and sexy.