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I note that the description of the Hawkins Kennedy impingement test
in Moen's article uses the words "with arm in 90 degrees in forward
elevation in the scapular plane". The description by Hawkins and Kennedy
(1980) has the patient in "approximately 90 degrees of forward flexion".
The picture in the Moen article is clearly different from that in Hawkins
and Kennedy's article.
Hawkins, R. J. Kennedy, J. C. Impingement syndrome in athletes. Am J
Sports Med, 1980, 8, 3 151-8.
Moen, M et al. Clinical tests in shoulder examination: how to perform
them. BJSM 2010,44:370-375