Day to Day Variation of Pressure Pain Threshold and Muscle Hardness
Day to Day Variation of Pressure Pain Threshold and Muscle Hardness
The aim is to establish how headache and migraine can affect muscle hardness and tenderness
 in migraine patients
Migraine is a very common disorder, and many migraine patients have symptoms from their neck
 and muscles. 50% of migraine patients have a sensation of stiff neck in relation to migraine
 attacks. Furthermore it is well established, that migraine patients have tender muscles
 during migraine attack, which can be measured with pressure pain threshold.

 In this study the investigators aim to establish the variation in ultrasound elastography and
 pressure pain threshold in migraine patients over time. And establish the significance of
 headache, migraine and prodromes on these measurements.

 The study includes daily measurements of muscle hardness and muscle tenderness. The patients
 are asked to fulfill a headache diary and a short questionnaire asking about current
 headache, physical activity, stress and current infectious diseases. Sleep and physical
 activity is also measured objectively using a fitbit Charge2. Furthermore the patients are
 asked about symptoms which often are associated with migraine (prodromes).
Inclusion Criteria:

 -  Migraine Patient fulfilling international classification of headache disorders (ICHD
 3) criteria

 Exclusion Criteria:

 -  regular medication use other than medication for migraine or headache

 -  Other Pain disorders

 -  Musculoskeletal disorders affecting neck or upper body