ABSTRACT

Objective:

To evaluate the association between physical activity levels and isokinetic muscle strength of knee.

Materials and Methods:

Thirty amateur athletes and 30 healthy volunters (aged between 20-24) were included in the study. Participants were divided into two groups as amateur athletes (group 1) and healthy controls (group 2). Physical activity levels of the participants were assessed by International Physical Activity Questionnaire (IPAQ). Dominant knee flexion and extension muscle strength of the participants were measured with an isokinetic dynamometer at 60°/s and 180°/s angular velocities.

Results:

There were no statistically significant difference between the groups in age, sex, weight, height, body mass index and, smoking status (p>0.05). There was a statistically significant difference in IPA scores between the groups (p<0.05). IPAQ scores were higher in group1I. There were no statistically significant difference between the knee extensor and flexor peak torque values in both groups (p>0.05). Group 1 was divided into subgroups according to IPA scores. In patients with high activity level, peak torque values at the angular velocities of 60°/s and 180°/s for knee muscles were significiantly higher (p<0.05).

Conclusion:

Further studies that evaluating of the many factors that determining and affecting muscle strength are with larger groups will be beneficial.