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Sarmah A, Aggarwal R, Vitekar SS, Katao S, Boruah L, Ito S, Kanagaraj S. Framework for early detection and classification of balance pathologies using posturography and anthropometric variables. Clin Biomech (Bristol, Avon) 2024; 113:106214. [PMID: 38394963 DOI: 10.1016/j.clinbiomech.2024.106214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/17/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Early detection of balance-related pathologies in adults using Posturography, anthropometric and personal data is limited. Our goal is to address this issue. It will enable us to identify adults in early stages of balance disorders using easily accessible and measurable data. METHODS Open-source data of 163 subjects (47 males and 116 females) is used to train and test classification algorithms. Features include mean and standard deviation of the center of pressure displacement, obtained through posturography, the anthropometric and personal variables (age, sex, body mass index, foot length), and Trail Making Test scores. 75% of the data is employed for training and 25% of the data is used for testing. It is then validated using an indigenously collected dataset of healthy individuals. FINDINGS Accuracy and Sensitivity, both, increases when anthropometric and personal variables are included alongside center of pressure features for classification. Specificity decreases slightly with the addition of anthropometric and personal variables with center of pressure displacement feature, which also affects the classification algorithms' performance. Standard deviation of the center of pressure displacement is found to be more effective than the mean value. A similar trend of the increased performance is observed during validation, except when neural networks were used for the classification. INTERPRETATION Posturography data, Anthropometric measurements, personal data and self-assessment scales can identify balance issues in adults, making it suitable for community health centers with limited resources. Early detection prompts timely medical care, improving the management of disorders and thus enhancing the quality of life through rehabilitation.
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Affiliation(s)
- Arnab Sarmah
- Department of Mechanical Engineering, IIT Guwahati, Assam, India; Graduate School of Engineering, Gifu University, Gifu, Japan.
| | - Raghav Aggarwal
- Department of Mechanical Engineering, IIT Guwahati, Assam, India
| | | | - Shunsuke Katao
- Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
| | - Lipika Boruah
- Center for Intelligent Cyber-Physical Systems, IIT Guwahati, Assam, India
| | - Satoshi Ito
- Faculty of Engineering, Gifu University, Gifu, Japan
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Kandels J, Metze M, Hagendorff A, Marshall RP, Hepp P, Laufs U, Stöbe S. The impact of upright posture on left ventricular deformation in athletes. Int J Cardiovasc Imaging 2023; 39:1123-1131. [PMID: 36869240 DOI: 10.1007/s10554-023-02820-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/16/2023] [Indexed: 03/05/2023]
Abstract
Besides LV ejection fraction (LVEF), global longitudinal strain (GLS) and global myocardial work index (GWI) are increasingly important for the echocardiographic assessment of left ventricular (LV) function in athletes. Since exercise testing is frequently performed on a treadmill, we investigated the impact of upright posture on GLS and GWI. In 50 male athletes (mean age 25.7 ± 7.3 years) transthoracic echocardiography (TTE) and simultaneous blood pressure measurements were performed in upright and left lateral position. LVEF (59.7 ± 5.3% vs. 61.1 ± 5.5%; P = 0.197) was not affected by athletes' position, whereas GLS (- 11.9 ± 2.3% vs. - 18.1 ± 2.1%; P < 0.001) and GWI (1284 ± 283 mmHg% vs. 1882 ± 247 mmHg%; P < 0.001) were lower in upright posture. Longitudinal strain was most frequently reduced in upright posture in the mid-basal inferior, and/or posterolateral segments. Upright posture has a significant impact on LV deformation with lower GLS, GWI and regional LV strain in upright position. These findings need to be considered when performing echocardiography in athletes.
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Affiliation(s)
- J Kandels
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstr. 20, 04103, Leipzig, Germany.
| | - M Metze
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstr. 20, 04103, Leipzig, Germany
| | - A Hagendorff
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstr. 20, 04103, Leipzig, Germany
| | - R P Marshall
- RasenBallsport Leipzig GmbH, Cottaweg 3, 04177, Leipzig, Germany
- Department of Orthopedic and Trauma Surgery, Martin-Luther-University Halle-Wittenberg, 06120, Halle, Germany
| | - P Hepp
- Klinik und Poliklinik für Orthopädie, Unfallchirurgie und Plastische Chirurgie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - U Laufs
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstr. 20, 04103, Leipzig, Germany
| | - S Stöbe
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstr. 20, 04103, Leipzig, Germany
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Stansfield E, Fischer B, Grunstra NDS, Pouca MV, Mitteroecker P. The evolution of pelvic canal shape and rotational birth in humans. BMC Biol 2021; 19:224. [PMID: 34635119 PMCID: PMC8507337 DOI: 10.1186/s12915-021-01150-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 09/09/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The human foetus typically needs to rotate when passing through the tight birth canal because of the complex shape of the pelvis. In most women, the upper part, or inlet, of the birth canal has a round or mediolaterally oval shape, which is considered ideal for parturition, but it is unknown why the lower part of the birth canal has a pronounced anteroposteriorly oval shape. RESULTS Here, we show that the shape of the lower birth canal affects the ability of the pelvic floor to resist the pressure exerted by the abdominal organs and the foetus. Based on a series of finite element analyses, we found that the highest deformation, stress, and strain occur in pelvic floors with a circular or mediolaterally oval shape, whereas an anteroposterior elongation increases pelvic floor stability. CONCLUSIONS This suggests that the anteroposterior oval outlet shape is an evolutionary adaptation for pelvic floor support. For the pelvic inlet, by contrast, it has long been assumed that the mediolateral dimension is constrained by the efficiency of upright locomotion. But we argue that the mediolateral elongation has evolved because of the limits on the anteroposterior diameter imposed by upright posture. We show that an anteroposteriorly deeper inlet would require greater pelvic tilt and lumbar lordosis, which compromises spine health and the stability of upright posture. These different requirements of the pelvic inlet and outlet likely have led to the complex shape of the pelvic canal and to the evolution of rotational birth characteristic of humans.
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Affiliation(s)
- Ekaterina Stansfield
- Department of Evolutionary Biology, Unit for Theoretical Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
| | - Barbara Fischer
- Department of Evolutionary Biology, Unit for Theoretical Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria
| | - Nicole D S Grunstra
- Department of Evolutionary Biology, Unit for Theoretical Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria
- Konrad Lorenz Institute for Evolution and Cognition Research, Martinstrasse 12, 3400, Klosterneuburg, Austria
- Mammal Collection, Natural History Museum Vienna, Burgring 7, 1010, Vienna, Austria
| | - Maria Villa Pouca
- Faculty of Engineering of University of Porto (FEUP), Rua Dr. Roberto Frias, s/n, 4200-465, Porto, Portugal
- Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI/LAETA), Rua Dr. Roberto Frias, 400, 4200-465, Porto, Portugal
| | - Philipp Mitteroecker
- Department of Evolutionary Biology, Unit for Theoretical Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
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Miragall M, Borrego A, Cebolla A, Etchemendy E, Navarro-Siurana J, Llorens R, Blackwell SE, Baños RM. Effect of an upright (vs. stooped) posture on interpretation bias, imagery, and emotions. J Behav Ther Exp Psychiatry 2020; 68:101560. [PMID: 32078947 DOI: 10.1016/j.jbtep.2020.101560] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 01/10/2020] [Accepted: 02/09/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND OBJECTIVES Adopting an upright (vs. stooped) posture has been related to positive effects on emotional and cognitive processes. However, there is no evidence concerning the effect of posture on two key processes associated with the maintenance of depression: interpretation bias and vividness of mental imagery. The objectives were to investigate the effect of adopting an upright (vs. stooped) posture on interpretation bias and vividness of positive and negative mental imagery, and to explore the interplay between these processes and depression-related emotions. METHODS The sample consisted of 54 participants (Mage = 22.00, 64.8% women), who were randomly assigned to the upright or stooped condition. Participants answered self-report measures while they were adopting a specific posture. Posture was monitored through inertial technology. RESULTS Main results were that: upright (vs. stooped) posture led to more positive interpretations of ambiguous information and increased positive emotions related to depression (happiness, optimism and vigor); time in an upright position was associated with change in interpretation bias and vividness of positive mental imagery; and level of depressive symptomatology moderated the effect of posture on the change in interpretation bias. LIMITATIONS Limitations are related to the use of non-clinical sample, the use of short-term measurements, and the lack of an experimental condition adopting the usual posture. CONCLUSIONS Posture interacts with mechanisms involved in the maintenance of depression, as well as with depression-related emotions. This study has clinical implications that should be continued explored in order to clarify the role of manipulating the posture in individuals with depressive symptomatology.
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Affiliation(s)
- Marta Miragall
- Department of Personality, Evaluation and Psychological Treatment, University of Valencia, Valencia, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN). Instituto Carlos III, Spain.
| | - Adrián Borrego
- Neurorehabilitation and Brain Research Group, Instituto de Investigación e Innovación en Bioingeniería. Universitat Politècnica de València, Valencia, Spain.
| | - Ausiàs Cebolla
- Department of Personality, Evaluation and Psychological Treatment, University of Valencia, Valencia, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN). Instituto Carlos III, Spain.
| | - Ernestina Etchemendy
- Department of Personality, Evaluation and Psychological Treatment, University of Valencia, Valencia, Spain.
| | - Jéssica Navarro-Siurana
- Department of Personality, Evaluation and Psychological Treatment, University of Valencia, Valencia, Spain.
| | - Roberto Llorens
- Neurorehabilitation and Brain Research Group, Instituto de Investigación e Innovación en Bioingeniería. Universitat Politècnica de València, Valencia, Spain; Servicio de Neurorrehabilitación y Daño Cerebral de los Hospitales Vithas-NISA. Fundación Hospitales NISA, Valencia, Spain.
| | - Simon E Blackwell
- Department of Psychology, Ruhr-Universität Bochum, Germany; Mental Health Research and Treatment Center, Faculty of Psychology, Ruhr-Universität Bochum, Germany.
| | - Rosa M Baños
- Department of Personality, Evaluation and Psychological Treatment, University of Valencia, Valencia, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN). Instituto Carlos III, Spain.
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