Abstract Summary
Dynamic stability of trunk movements can provide important information about spine control during movement tasks. The Pilates method focus to maintain trunk stability during exercises. The objective of this study was to compare trunk stability between two practitioner’s levels and two intensities during Pilates’ exercise using a biomechanical model. Long stretch front exercise was analyzed with one and two springs’ resistance on the reformer apparatus. Kinematics, kinetics, anthropometrics data were input in a spring-mass model system. Natural frequency and damping factor were significantly higher in advanced individuals, whereas one spring resistance (more difficult) was higher for the same variables. These results can provide insight about better stability generated by the Pilates method. Further, this study provides evidence of the spine control and developes a tool to assess impairment, treatment effectiveness of load and training exercises. Thus, it may reflect a protective strategy to prevent or rehabilitate the lumbar spine.
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