Notice if one shoulder is higher than the other, or if the head tilts to one side. Both could be indications of the types of problems that respond nicely to chiropractic care.
A common problem is a forward head carriage. Besides a source of fatigue, this is a common sign of vertebral subluxation and can lead to many problems, including accelerated aging.
Have the test subject wear a pair of hard soled shoes and lie across a bed, face down, with arms relaxed at each side. The head must remain straight down through the entire test.
Apply equal pressure with both thumbs to the arches of each shoe. Are both legs of equal length when the bottoms of the shoes are parallel? If one leg is shorter, make a note of which one is shorter and by how much.
Bend each leg to a 90 degree angle so the bottoms of the shoes are parallel to the floor. Does one leg appear shorter? If one leg is shorter, make a note of which one is shorter and by how much.
With their eyes closed, have the test subject tilt their head up and down, then left and right, settling to a comfortable, neutral position. Record the scale readings for each leg.
To eliminate the variance between the scales, reverse their positions and repeat the test.
With the test subject comfortably seated and their eyes closed, have them lift their head up and down several times, coming to a neutral resting position.
With their eyes still closed and without moving their shoulders, have them rotate their head fully to the left and hold for a few seconds.
With their eyes still closed and without moving their shoulders, have them rotate their head fully to the left and hold for a few seconds.