Date of Award


Degree Name

Athletic Training


College of Health Professions

Type of Degree


Document Type


First Advisor

Suzanne M. Konz

Second Advisor

Kumika Toma

Third Advisor

William Z. Garrett


In this study, a correlation between isokinetic testing of the knee and the vertical jump and single leg jump in collegiate division 1 football players was investigated. The medical records of 68 athletes were selected for this study. Correlations and two-tailed regressions were run. Data was analyzed with raw numbers as well as allometrically scaled numbers. Correlation analysis is revealed time to peak torque (TPT60) in both the right and left hamstrings at 60°/sec was significant in the vertical jump (VJ). At 180°/sec, power in the left leg (P180-LQ and P180-LH), peak torque in the left quadriceps (PT180-LQ), and left hamstring (PT180-LH) were significant for the vertical jump. Pearson r indicated a relationship between the variables of 60°/sec isokinetic testing. Vertical jump correlation analysis revealed that power output in the right quadriceps (P180-RQ), peak torque in the right quadriceps (PT60-RQ), right hamstring (PT60- RH), and left hamstring (PT60-VLH) at 60°/sec were significant in the standing long jump (SLJ). At 180°/sec, power in the quadriceps and hamstrings of both legs (P180-RQ, P180-LQ, P180-RH, and P180-LH) and peak torque in the quadriceps and hamstrings of both legs (PT180- RQ, PT180-LQ, PT180-RH, and PT180-LH) were significant with moderate Pearson r relationships for the SLJ. From these findings, correlations exist that give a better understanding of the results of the VJ and SLJ tests. The use of isokinetic testing to assist in assessing the results of on-field testing is valid.


Athletic ability -- Testing.

Isokinetic exercise -- Research.