Abstract
INTRODUCTION: The physiological decline with advancing age also affects the aging of the spine. The practice of physical activity (PA) appears to protect against spine degeneration. Hence, the aim of this study was to analyze the morphological differences of the spine in older women, comparing subjects with different levels of PA. METHODS: Participants were divided into the three following groups based on the amount of PA practiced: low active (LA); moderate active (MA); high active (HA). The levels of PA were measured using the International Physical Activity Questionnaire-Short Form (IPAQ-SF). The spine morphology of each participant was assessed through a non-invasive, 3D optoelectronic detection system using the Light Detection and Ranging (LIDAR) technology. Spine parameters in the frontal and sagittal planes were considered for comparisons. RESULTS: No significant differences in spine parameters in the frontal plane among the 3 groups were found. In the sagittal plane, we found a significant difference on the spine sagittal imbalance parameter (F ((2, 40)) = 6.17; p = 0.005), with the highest spine sagittal imbalance in the LA group. Furthermore, in the sagittal plane, we detected a significant difference in the spine inclination parameter (F ((2, 40)) = 5.93; p = 0.006), with the highest spine inclination in the LA group. CONCLUSION: Our results showed that older women who engage d in lower levels of PA exhibited some altered spinal sagittal parameters compared to peers with moderate and high levels of PA, suggesting that PA may contribute to maintain spinal sagittal alignment and preserve spinal sagittal balance.