methods for treatment and prevention of disorders resulting from hypertension of neck and shoulder muscles , in particular hypertension of the scalenius muscles , comprise administering a training regime to a subject suffering from the disorders , whereby the training regime comprises manipulating an object while maintaining a pinch - grip force exerted by the fingers on the object below a given threshold value . the object preferably has a pressure sensor that generates a signal when the pinch - grip force exceeds the threshold value . the object may be a writing instrument whereby the training may comprise writing exercises .