HAMSTRING AND QUADRICEPS STRENGTH RATIO: EFFECT OF AGE AND GENDER

Adeoluwa O Jaiyesimi, J A Jegede

Abstract


This study was carried out to investigate how age and gender influence hamstring-quadriceps (knee flexor-extensor) muscle strength ratio in a Nigerian urban population. One hundred and fifty apprently healthy male and female subjects in 3 age groups (group I, 11-20 years; group II, 21-40 years and group III, 41-60 years) participated. The hamstrings and quadriceps isometric muscle strength of all the patients was measured and their ages were recorded. The hamstring-quadriceps strength ratio for each subject was also calculated. The results showed that the hamstring muscles of the subjects have a strength that is about half the strength of the ipsilateral quadricepsfemoris muscle in each of the groups. A comparison of hamstring quadriceps muscle strength ratio across the age groups releaved no significant difference among both male andfemale subjects (p>0.05). No significant gender difference was found among the subjects in the age groups 11-20 years and 41-60 years (p >0.05) but in the age group 21-40 years the male subjects had a significantly higher Hamstring Quadriceps strength ratio than their female counterparts (p

Keywords


muscular strength, hamstring/quadriceps strength ratio, age and sex

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