Validity of the German Version of the Continuous-Scale Physical Functional Performance 10 Test.

Area of Science:

• Gerontology
• Rehabilitation Science
• Clinical Assessment

Background:

• The Continuous-Scale Physical Functional Performance 10 Test (CS-PFP 10) is designed to quantitatively measure physical functional performance across a spectrum of abilities in older adults.
• Assessing the validity and reliability of a German version of the CS-PFP 10 is essential for its use in German-speaking populations.

Purpose of the Study:

• To evaluate the validity and reliability of the German version of the CS-PFP 10 in older adults.
• To ensure the accurate measurement of physical functional performance in a specific demographic.

Main Methods:

• The CS-PFP 10 underwent forward-translation, backtranslation, and cultural adaptation.
• Concurrent validity was determined by correlating CS-PFP 10 scores with gait velocity, Timed Up and Go Test, hand grip strength, SF-36 physical function, and Freiburger Physical Activity Questionnaire.
• Internal consistency was assessed using Cronbach's alpha.

Main Results:

• The adapted German CS-PFP 10 was approved by the test developer.
• Significant correlations were observed between the CS-PFP 10 total score and subscores (upper body strength, flexibility, lower body strength, balance, coordination, endurance) and all physical function measures.
• High internal consistency was demonstrated, with Cronbach's alpha values ranging from 0.95 to 0.98.

Conclusions:

• The German version of the CS-PFP 10 is a valid and reliable instrument for assessing physical functional performance in German-speaking community-dwelling older adults.
• Accurate quantification of physical function is vital for both clinical practice and research involving the older adult population.
• The study provides meaningful insights into the physical functional capabilities of older adults using a standardized tool.