The eccentric/concentric ratio of quadriceps femoris in sprinters and normals

Rich Fairbanks, Brian Lawler, Terry R. Malone

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Eccentric muscle activation has been found to play an important role in athletic pursuits. Interest in the biomechanics of performance has led increasingly to the examination of muscle action. The concentric/eccentric ratio of a muscle may be altered by activity, which led to our purpose of determining if the ratio of concentric to eccentric activation of the quadriceps femoris differs between sprint-type athletes and individuals of normal activity level. Eight sprinters and 10 normal individuals were evaluated on a KinCom dynamometer at 180 deg/sec in both concentric and eccentric maximal efforts. We found no significant difference in the concentric/eccentric ratio (0.78 sprinters versus 0.75 normals) of these two groups. Implications for the clinician and further research were discussed.

Original languageEnglish
Pages (from-to)41-44
Number of pages4
JournalIsokinetics and Exercise Science
Issue number1
StatePublished - 1994


  • Eccentric/concentric ratio
  • Isokinetics
  • Quadriceps femoris

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation


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