Crunching Too High The ab crunch is a subtle movement that lifts the shoulder blades a few inches off the floor. Jerking the shoulders up adds momentum and reduces the effectiveness of the exercise. Vale lembrar de que todos ESTES exercícios supra podem vir a ser efetuados com as pernas https://bookmarkplaces.com/story18024996/abdominal-crush-no-further-um-mist%C3%A9rio