Ergonomics and usability of an electrically adjustable shower trolley

The validation of visual analogue scales as ratio scale measures for chronic and experimental pain

Donald D. Price, Patricia McGrath, Amir Rafii et al. · Pain · 1983 · 3.8K citations

The measurement of clinical pain intensity: a comparison of six methods

Mark P. Jensen, Paul Karoly, Sanford Braver · Pain · 1986 · 3.2K citations

Pain Therapy, Acute Pain, Pain Medicine +16

The effects of training on heart rate; a longitudinal study.

M J Karvonen, Erna Kentala, O Mustala · PubMed · 1957 · 1.8K citations

Training System, Heart Rate, Physical Activity +12

Refining the Test Phase of Usability Evaluation: How Many Subjects Is Enough?

Robert A. Virzi · Human Factors The Journal of the Human Factors and Ergonomics Society · 1992 · 1.2K citations

Engineering, Education, Severe Usability Problems +20

Recommendations for the standardization of lead positions in surface electromyography

Peter Zipp · European Journal of Applied Physiology · 1982 · 460 citations

Electrophysiological Evaluation, Kinesiology, Electromyography +4