Quantification of Lumbar Stability During Wall Plank-and-Roll Activity Using Inertial Sensors

PM & R : the Journal of Injury, Function, and Rehabilitation
Chiyul YoonSun Gun Chung

Abstract

To develop a simple method of quantifying dynamic lumbar stability by evaluating postural changes of the lumbar spine during a wall plank-and-roll (WPR) activity while maintaining maximal trunk rigidity. A descriptive, exploratory research with a convenience sample. A biomechanics laboratory of a tertiary university hospital. Sixteen healthy young subjects (8 men and 8 women; 30.7 ± 6.8 years old) and 3 patients (2 men 46 and 50 years old; 1 woman 54 years old) with low back pain (LBP). The subjects performed the WPR activity with 2 inertial sensors attached on the thoracic spine and sacrum. Relative angles between the sensors were calculated to characterize lumbar posture in 3 anatomical planes: axial twist (AT), kyphosis-lordosis (KL), or lateral bending (LB). Isokinetic truncal flexion and extension power were measured. AT, KL, and LB were compared between the initial plank and maximal roll positions. Angular excursions were compared between males and females and between rolling sides, and tested for correlation with isokinetic truncal muscle power. Patterns and consistencies of the lumbar postural changes were determined. Lumbar postural changes of each patient were examined in the aspects of pattern and excursion, consider...Continue Reading

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Citations

Jul 23, 2018·PM & R : the Journal of Injury, Function, and Rehabilitation·Joonnyong LeeSun Gun Chung

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