Age-related changes in shock absorption capacity of the human spinal column

Clinical Interventions in Aging
Grażyna Brzuszkiewicz-KuźmickaDawid Bączkowicz

Abstract

The spinal column possesses shock absorption properties, mainly provided by the intervertebral discs. However, with the process of senescence, all structures of the spine, including the discs, undergo degenerative changes. It may lead to alteration of the mechanical properties of the spinal motion segment and diminished capacity for vibration attenuation. The objective of this study was to investigate the age-related changes in shock absorption properties of the spine. A total of 112 individuals divided into three groups according to age (third, fifth, and seventh decades of life) were enrolled in this study. The transmissibility of vibrations through the spine was measured in a standing position on a vibration platform by accelerometers mounted at the levels of S2 and C0. Registered signals were described using four parameters: VMS (variability), peak-to-peak amplitude (PPA), and spectral activity in two bands F2 (0.7-5 Hz) and F20 (15-25 Hz). In all age groups, signals registered at C0 were characterized by significantly lower values of VMS, PPA, and F20, when compared to level S2. Simultaneously, the parameter F20 significantly differed among all age groups when C0 vibrations were analyzed: 2.43±1.93, 5.02±3.61, and 10.84±5....Continue Reading

Methods Mentioned

BETA
X-ray

Software Mentioned

Statistica
MATLAB
AcquiFlex

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