Posture assessed in health exam detects cognitive decline – Neuroscience News

Summary: An older person’s posture can give clues to hidden cognitive decline, a new study has found.

Source: Shinshu University

A mass survey of citizens between the ages of 50 and 89 examined whether cognitive decline could be detected by measuring the sagittal balance of the spine based on an X-ray approach. Physicians at Shinshu University observed associations of sagittal vertical axis (SVA) anteriorization and older age with lower cognitive function.

The sagittal vertical axis is the length of a horizontal line connecting the posterosuperior sacral endplate to a vertical plumb line dropped from the centroid of the C7 vertebral body. The further the head and neck protrude in front of the pelvis when viewed from the side (the greater the length), the more likely subjects are to exhibit symptoms of mild cognitive decline.

In men, VAS was associated with cognitive decline regardless of age. In women, cognitive decline was more likely in cases with SVA equal to or greater than 70 mm, regardless of age.

Mild cognitive impairment is cognitive complaints of the person or their associates and the absence of dementia. Dementia, frailty, and bed rest can be prevented by catching mild cognitive impairment at a reversible stage in communities where expensive special testing equipment or additional medical testing time is limited for the elderly population.

The first author, Hikaru Nishimura, is an occupational therapist who studies the problems faced by the elderly from a rehabilitation perspective. Physical training in the elderly could prolong the magnitude of the decline to dementia or prevent it all together.

The corresponding author, Dr. Shota Ikegami of Shinshu University, states that poor posture is a manifestation of “frailty” in older people. Hidden cognitive decline, a component of frailty, can be detected through postural screening.

Elderly people from Obuse City, Nagano were examined for the mass survey and found that among Japanese elderly people, those with spinal anteriorization were more likely to have decline as well. cognitive functions.

The posture of the spine assessed by the examination. The left shows the posture in which the anterior-posterior balance of the spine is balanced, and the center and right are the upper body protruding forward from the pelvis and the center of gravity forward . As we age, the center of gravity tends to shift forward. By evaluating this, it is possible to detect a slight decline in cognitive function. Credit: The Researchers

Cognitive decline was reliably detected by combining age and degree of spinal imbalance. Men with SVA ≥ 100 mm at any age, SVA ≥ 90 mm at ≥ 70 years, and SVA ≥ 70 mm at ≥ 80 years were likely to have cognitive decline, while women with SVA ≥ 70 mm at any age are likely to have cognitive impairment. decline.

Nagano Prefecture has one of the highest health longevities in Japan. With this study and others, doctors hope to prevent future care needs through rehabilitation interventions for frail people discovered during screenings.

Funding: This work was supported by a grant from the Japan Orthopedics and Traumatology Research Foundation, Inc. [no. 339]the Shinshu Charitable Foundation for Promoting Medical Science, Japan Society of Musculoskeletal Medicine Research Funding, Hospital Education, Research and Medical Care Promotion Project Shinshu University and the Nakatomi Foundation.

None of the above funding sources played a role in the design, execution, analysis, data interpretation or writing of the study.

About this research update on posture and cognitive decline

Author: Hitomi Thompson
Source: Shinshu University
Contact: Hitomi Thompson – Shinshu University
Image: Image is in public domain

Original research: Free access.
“Detection of cognitive decline by assessment of spinal posture in health examinations of the general elderly population” by Hikaru Nishimura et al. Scientific reports

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Detection of cognitive decline by assessment of spinal posture in health examinations of the elderly general population

The recent increase in the population of older adults has resulted in a higher prevalence of cognitive impairment, which is often overlooked in routine health examinations. Citizens between the ages of 50 and 89 were targeted for this cohort survey by random sampling from the register of residents of a cooperating city in 2014. A total of 411 participants (202 men and 209 women) were enrolled.

We analyzed the distribution of cognitive function test scores as determined by the Montreal Cognitive Assessment Tests and the Mini-Mental State Examination in each age group (50, 60, 70, and 80) and gender to examine whether cognitive decline could be detected by measuring sagittal balance of the spine. based on a radiological approach.

Sagittal spinal balance was measured quantitatively as the sagittal vertical axis (SVA). We observed significant associations for older age and/or VAS anteriorization with lower cognitive function.

In men, anteriorization of spinal balance was associated with cognitive decline independent of age, with combinations of age and SVA also making valid determinations of cognitive decline; male cases of SVA ≥ 100 mm at any age, SVA ≥ 90 mm at ≥ 70 years, and SVA ≥ 70 mm at ≥ 80 years were all more likely to have cognitive decline than cases below these values. For women, cognitive decline was more likely in cases with SVA ≥ 70 mm, regardless of age.

Thus, anteriorization of spinal balance can be considered a readily visible indicator of latent cognitive decline in community-dwelling older adults.

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