Validity and reliability of serratus anterior hand held dynamometry.
Jos IJspeertHans C J W KerstensRenske M J JanssenAlexander C H GeurtsNens van AlfenJan T GroothuisPublished in: BMC musculoskeletal disorders (2019)
The results indicate that validity for strength testing of the serratus anterior muscle is optimal with subjects in a seated position and the shoulder flexed at 90° in the scapular plane. Intrarater reliability is moderate and interrater reliability of this procedure is poor. However the high SDC values make it difficult to use the measurement in repeated measurements.