What is Hand Motion Analysis (HMA)?
Borrowed from the field of kinesiology, HMA uses electromagnetic markers to track the hand movements during a variety of surgical tasks to determine numerous outcome variables including the number of hand movements and path length. Studies by several groups have demonstrated its validity and reliability as an assessment tool although its use to-date has been limited to the laboratory-based training environment. Its advantage lies in both its use of objective measures of performance and lack of dependency on expert raters for assessment.
