Evidence map›Paper›PMID 40653591›Full record

ArticleNeurology and therapy2025

Characteristics of Postural Instability in Idiopathic Normal Pressure Hydrocephalus.

Eunhee Park, Kyunghun Kang, Janghoon Lee, Jong Taek Lee, Ki-Su Park, Chul-Hyun Kim, Yu-Sun Min

Abstract read
In one paragraph

Article in Neurology and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Eunhee Park *Department of Rehabilitation Medicine, School of Medicine, Kyungpook National University, # 807 Hoguk-Ro, Buk-Gu, Daegu, 41404, South Korea.
Kyunghun Kang *Department of Neurology, School of Medicine, Kyungpook National University, Daegu, South Korea.
Janghoon LeeSchool of Computer Science and Engineering, Kyungpook National University, Daegu, South Korea.
Jong Taek LeeSchool of Computer Science and Engineering, Kyungpook National University, Daegu, South Korea.
Ki-Su ParkDepartment of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea.
Chul-Hyun KimDepartment of Rehabilitation Medicine, School of Medicine, Kyungpook National University, # 807 Hoguk-Ro, Buk-Gu, Daegu, 41404, South Korea.
Yu-Sun MinDepartment of Rehabilitation Medicine, School of Medicine, Kyungpook National University, # 807 Hoguk-Ro, Buk-Gu, Daegu, 41404, South Korea. minys@knuh.kr.

Funding

Ministry of Education 4120240214871Ministry of Education BK21 FOUR project
6 · The paper itself

Abstract

introductionIn patients with idiopathic normal pressure hydrocephalus (iNPH), the characteristics of static steady-state balance disturbance are not as well understood as those related to gait. This study aimed to investigate differences in center of pressure (COP) parameters between patients with iNPH and age-matched healthy controls.

methodsA total of 56 patients diagnosed with probable iNPH, who responded positively to cerebrospinal fluid tap test (CSFTT), along with 25 age-matched healthy controls, were enrolled. Prior to the CSFTT, COP measurements were taken using a force plate while participants stood quietly with eyes open (EO) and eyes closed (EC). We calculated the values of mediolateral (ML) and anteroposterior (AP) directions and ML/AP ratio in terms of the velocity of COP (vCOP), the standardized COP path length (Std_vCOP), and the peak power spectral density (PSD) at 0-0.5 Hz and 0.5-1.0 Hz. Additionally, we calculated the average distance from the COP center (Dist_COP) and the base of support (BOS). A Mann-Whitney U test with Bonferroni correction was used to compare differences between healthy controls and patients with iNPH under each visual condition (EO vs. EC).

resultsThere were no significant differences in gender, age, height, and weight between the healthy controls and the patients with iNPH. Patients with iNPH demonstrated greater spontaneous sway in the ML direction of vCOP (p < 0.001), increased variability in both ML and AP directions of Std_vCOP (p < 0.001 for both), a larger Dist_COP (p < 0.001) and BOS (p < 0.001) in the EC condition. Under the EO condition, patients with iNPH exhibited a significantly higher ML/AP ratio (p < 0.001) and larger BOS (p < 0.001). Furthermore, peak PSD at 0-0.5 Hz, reflecting low-frequency oscillations, was more pronounced in the ML direction and in the ML/AP ratio (p < 0.001 for both under EO), as well as in the AP direction (p < 0.001 under EC) in patients with iNPH. However, no significant differences were observed in the high-frequency oscillations (0.5-1.0 Hz).

conclusionsThese findings suggest that patients with iNPH exhibit distinct COP patterns, particularly greater variability in the ML direction during quiet standing. In contrast, the AP direction appears to be more influenced by visual conditions when compared to healthy controls. This result highlights the potential need for tailored balance training in patients with iNPH.

Indexed as

ExerciseNormal pressure hydrocephalusPostural balanceStanding positionVision

Identifiers

PMID40653591
PMCPMC12450156

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