- The Penn Spasm Frequency Scale (PSFS) is a 2-component self-report measure of the frequency of reported muscle spasms which is commonly used to quantify spasticity.
- The first component is a 5 point scale assessing the frequency with which spasms occur ranging from “0 = No spasms” to “4 = Spontaneous spasms occurring more than ten times per hour”.
- The second component is a 3 point scale assessing the severity of spasms ranging from “1 = Mild” to “3 = Severe”. The second component is not answered if the person indicates they have no spasms in part 1.
- Developed to augment clinical ratings of spasticity and provide a more comprehensive understanding of an individual’s spasticity status.
- The scale is subject to concomitant subclinical conditions such as fullness of the bladder, development of a symptomatic urinary tract infection, anxiety level, room temperature, subject comfort, and many other conditions.
- In general, self-report measures of spasticity correlate only moderately with clinical examination suggesting that the elements of spasticity evaluated in the physical examination do not represent what is important to persons with SCI spasticity. To more fully understand spasticity as experienced by the client, self-report spasticity measures are an important adjunct to other clinical measures of spasticity.
- The PSFS is easy to understand, presents minimal patient burden (easy to administer during routine clinical visits).
Body Function ▶ Neuromusculoskeletal & Movement-related Functions and Structures