Validation of the USFD 20-Meter Sprint Power Test

Abstract

Addressing the lack of context-responsive and scalable tools for assessing sprint-specific muscular power in Philippine physical education and athletic settings, this study developed and validated the USFD 20-Meter Sprint Power Test (USFD-20MSPT). Designed as a field-based performance test, it measures average muscular power during sprinting while accounting for individual differences in body mass. It aims to provide a practical, scientifically grounded alternative to traditional vertical jump assessments, particularly where equipment or space limitations exist. The test protocol is based on Newtonian mechanics, estimating power output using sprint time and mass. A multi-phase validation process was implemented. Content validity was determined through expert ratings by ten physical educators, resulting in a high Content Validity Index (CVI = 0.90). Convergent validity was demonstrated by a strong correlation with the Vertical Jump Test (r = 0.789), affirming that both tools measure the same construct. Discriminant validity was supported by a weak, non-significant correlation with the Ruler Drop Test (r = –0.243), indicating that the USFD-20MSPT does not assess unrelated constructs, such as reaction time. Test-retest reliability using rank-transformed data showed excellent stability (r = 0.980), indicating consistency across sessions. The USFD-20MSPT stands as a reliable, accessible tool for PE instruction, fitness monitoring, and athlete development. It is recommended for integration into school-based fitness programs and further validation across broader contexts to establish nationwide normative values that support national adoption.