title: Hamstring/quadriceps ratios in college football players: a high velocity evaluation.
abstract: Hamstring/quadriceps ratios were assessed on 60 intercollegiate football players at functional speeds of 90, 180, and 300 deg/sec on the Cybex II. The ratio rose as velocity of exercise increased and the quadriceps was stronger than the hamstrings at all speeds. The flexor/extensor ratio differed bilaterally at all speeds with ratio lower for the dominant knee. The study helped establish normative data on hamstring/quadricep ratios on football players at functional speeds. Furthermore, the ratio provides a guide to observe muscle imbalances which could be a factor in injury.
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D005538:Football; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D008297:Male; D009132:Muscles / Q000502:physiology*; D005082:Physical Exertion; D012016:Reference Values; D013710:Tendons / Q000502:physiology*