摘要：Concentric bilateral pe ak torque ratio (ptr)f concentric ha ms tring/ quad riceps (H∕Q) ptr,eccentric/concentric p tr of knee flexors,an d knee extensor s'concentric / knee flex ors,eccentric p tr were determin ed and the releationship of these p arameters with 10 m and 30 m sprint times were investigated in this study.Subjects were 22 male Turkiye Premier League soccer players (23.2 ±4.1 years).Isokinetic dynamometry (Cybex 6000,Lumex Inc,Rankonkoma,NYf USA) wa s used for strength as sessmen ts.Mean concentric H /Q ptr,s at 60./s,30 0g∕ s and 500./ s were 62.5 ± 9.5,71.7 ± 11.9 and 60.2 ± 16.7 % for the right knee,and 60.1 ± 9.2,68.5 ± 13.8 a nd 63.1 ± 17.3 0∕of or the left knee,respectively.Knee bilateral ptr's at 60./s,30 0./ s
