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. mostrou qual a elevação de pernas no solo melhora a postura e este alinhamento da coluna https://guideyoursocial.com/story3437460/renato-cariani-no-further-um-mist%C3%A9rio