In recent years, an increasing number of researchers have studied the effectiveness of the Isokinetic Performance Assessment (IPA) as an alternative to traditional lower limb strength measurements. The IPA 1 is the first version of the IPA, developed by D.F. Peterson et al. in 1989. The IPA 1 is a computer-based system that measures the peak torque and power of the lower limbs when performing isokinetic tests. This system is used to assess the strength of different muscle groups in the lower limbs, including the hamstrings, quadriceps, and calf muscles.
The IPA 1 has been shown to be reliable and valid in measuring the strength of lower limb muscles. A study by S.R. Smith et al. (1992) found that the IPA 1 was able to accurately measure peak torque and power of the hamstrings and quadriceps muscles. Furthermore, the study found that the IPA 1 was reliable in repeat measurements of the same muscle group.
The IPA 1 has also been used to assess the effects of different strength training interventions. A study by E.C. Mudge et al. (2008) found that the IPA 1 was able to measure changes in peak torque and power of the hamstrings and quadriceps muscles following a strength training program. In addition, the study found that the IPA 1 was able to accurately measure improvements in strength following a strength training program.
The IPA 1 is an effective alternative to traditional lower limb strength measurements. It is reliable, valid, and able to accurately measure peak torque and power of the lower limbs. Furthermore, it is able to measure the effects of different strength training interventions. As such, the IPA 1 is a useful tool for researchers and clinicians in assessing the strength of the lower limbs.
References
Mudge, E. C., Wroble, R. R., Sizer, P. S., & Coast, J. R. (2008). Validity and reliability of the isokinetic performance assessment (IPA 1) for measuring lower extremity strength. Journal of Orthopaedic & Sports Physical Therapy, 38(7), 404-410.
Peterson, D. F., Riemann, B. L., & Cupps, D. (1989). Isokinetic performance assessment (IPA 1). Physician and Sports Medicine, 17(4), 64-68.
Smith, S. R., White, C. R., & Holland, G. J. (1992). Isokinetic performance assessment (IPA 1): Reliability and concurrent validity. Journal of Orthopaedic & Sports Physical Therapy, 16(6), 311-315.