Andersen (1996) attempted to establish reliability of isokinetic dynamometer measurements of ankle dorsal and plantar flexors. Subjects were 38 normal controls and seven patients with peripheral neuropathy; all were tested twice. Previous studies have demonstrated reliability of strength testing over several joints in various patient populations, however, these results can't be extrapolated to ankle torque measurements for patients with neuromuscular diseases. This study demonstrated that the isokinetic dynamometer is a reliable method for muscle strength assessment in weak neuropathic patients; it is a tool that can be used to monitor the disease progression and treatment interventions (2:265, 267-268).
14. Wadsworth, C. T.; Nielsen, D. H.; Corcoran, D. S.; Phillips, C. E.; Sannes, T. L. Interrater reliability of hand-held dynamometry: Effects of rater gender, body weight, and grip strength. JOSPT 16(2):74-81; 1992.
2. Andersen, H. Reliability of isokinetic measurements of ankle dorsal and plantar flexors in normal subjects and in patients with peripheral neuropathy. Arch. Phys. Med. Rehabil. 77:265-268; 1996.
In a study testing 106 men and 125 women (aged 20 to 79 years), with no known neuromuscular, musculoskeletal, or cardiovascular pathology, HHD was used, twice. Results showed that measurements were reliable. Only for the case of ankle dorsiflexion measurements of the nondominant side, was there a difference found in the forces of a first and second measurement. All intraclass correlation coefficients were found to be greater than .94. Conclusions for this study also noted that HHD reliability is dependent on the strength of the tester; the clinician must be strong enough to hold against the patients' efforts (4:26, 28, 31).
11. Nicholas, J. A.; Sapega, A.; Kraus, H.; Webb, J. N. Factors influencing manual muscle tests in physical therapy. J. Bone and Joint Surg. 60-A(2):186-190; 1978.