Abstract: This study evaluated a visual analog scale (VAS) and a graphic rating scale (GRS) for the measurement of pain following delayed onset muscle soreness (DOMS) and following treatment for the symptoms of DOMS. Data from two studies were used to evaluate the scales. Pain intensity was assessed prior to and following induction of DOMS and immediately before and after each treatment session. In Study 1, subjects were randomly assigned to receive a 20- min ice pack followed by a 7-min sham ultrasound treatment or a 20-min ice pack followed by a 7-min nonthermal ultrasound treatment.
The measurement of pain intensity is common in clinical and experimental settings. The study of descriptive rating scales originated in psychological and medical experimentation, and variations of these scales are commonly used in the clinical setting. For example, athletic trainers frequently ask athletes to rate their pain arbitrarily from 1 to 10 to assess the effectiveness of a treatment intervention. The visual analog scale (VAS) and graphic rating scales (GRS) are two common measurement instruments used in this setting..
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