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Published on: December 14, 2011
Trends in isodynamic and isometric trunk testing on the Isostation B200
J A Levene1, R H Seeds, H M Goldberg
1Milwaukee Industrial Clinics, S.C., Wisconsin 53233.
Journal of Spinal Disorders
|March 1, 1989
Summary
This study established normative functional performance data for the low back in asymptomatic adults. Men generally showed greater range of motion and torque, but with higher variability than women.
Area of Science:
- Biomechanics
- Musculoskeletal Health
- Human Performance
Background:
- Low back pain is a prevalent issue, necessitating baseline data for functional assessment.
- Understanding sex-based differences in asymptomatic individuals is crucial for identifying abnormalities.
Purpose of the Study:
- To establish normative functional performance data for the asymptomatic low back.
- To analyze differences in functional performance between asymptomatic men and women.
Main Methods:
- 200 men and 100 women without prior low back pain underwent 6 functional tests on the Isostation B200.
- Tests included range of motion, maximum isometric strength, and repetitive movements in multiple planes.
- Data were analyzed for patterns and sex-based differences.
Main Results:
- Males exhibited greater range of motion and maximum isometric torque, but with higher standard deviations.
- Repetitive tests revealed distinct parameter value rankings and coupling patterns.
- A positive curvilinear relationship was found between torque and resistance settings.
Conclusions:
- Normative functional data for the low back were established for asymptomatic men and women.
- Significant sex-based differences in range of motion and torque exist, alongside greater variability in men.
- Further research is needed to explore resistance and velocity effects on performance.
