1. Czitrom, A.A., Lister, G.D., “Measurement of grip strength in the diagnosis of wrist pain.” JHS, 1988; 13A: 16-9.
Authors feel that grip aberrancy can help to substantiate complaints in an individual claiming to have an injury problem.
2. Derebery, J., Tullis, W.H., “Delayed recovery in the patient with a work compensable injury.” J of Occup Med, 1983; 25:11:829-835.
A “must read” classic on the psychology of treating injured workers.
3. Kaplan, C., Lipkin, M, Gordon, G., “Somatization in primary care: Patients with unexplained and invexing medical complaints.” J of General Internal Medicine, 1988; 3:177-190.
4. Louis, D. “Recognizable dysfunction syndromes.” Occup Diseases of the Hand, JHS, 1993; 9:2: 213-219.
5. Mitterhauser, M.D., Muse, V.L., Dellon, A.L., Jetzer, T.C., “Detection of submaximal effort with computer assisted grip strength measurements.” JOEM, 1997; 39: 12: 1220-1227.
The author presented this study of grip strength in injured, non-injured, and potentially malingering people using electromechanical device feasible to the National Institute of Standards and Technology instead of a hydraulic dynamometer. They determined very high statistical significance that the simultaneous presence of a stronger ulnar grasp force, as opposed to a radial sided grasp, a variance in grip strength in either hand that is higher than 15.1%, and lastly, a difference of more than 5.12% between left and right is a statistically significant predictor (P less than 0.001) of exerting less than a maximum effort. They pose a very strong argument for using their device, which the main author had a financial interest in developing and convention Jamar dynamometer or similar for the assessment of grip strength.
6. Stokes, H.M., Landrieu, K.W., Domangue, B., Kunen, S. “Identification of low-effort patients through dynamometry.” JHS, 1995; 20A: 1047-1056.
A follow up of his “Seriously uninjured hand” article. It adds little additional, but suggests his original contentions are correct.
7. Stokes, H.M. “The seriously uninjured hand – weakness of grip.” JOM, 1983; 25:9: 5117.
A classic. It suggests that serial grip results in a skewed bell curve whether or not the subject is injured. It also suggests that malingers will exhibit a flattened grip curve. However, false positives are not accounted for so it must be carefully interpreted.