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Deep learning in sex estimation from knee radiographs - A proof-of-concept study utilizing the Terry Anatomical Collection. Leg Med (Tokyo) 2023; 61:102211. [PMID: 36738551 DOI: 10.1016/j.legalmed.2023.102211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/05/2023] [Accepted: 01/29/2023] [Indexed: 02/01/2023]
Abstract
Although knee measurements yield high classification rates in metric sex estimation, there is a paucity of studies exploring the knee in artificial intelligence-based sexing. This proof-of-concept study aimed to develop deep learning algorithms for sex estimation from radiographs of reconstructed cadaver knee joints belonging to the Terry Anatomical Collection. A total of 199 knee radiographs were obtained from 100 skeletons (46 male and 54 female cadavers; mean age at death 64.2 years, range 50-102 years) whose tibiofemoral joints were reconstructed in standard anatomical position. The AIDeveloper software was used to train, validate, and test neural network architectures in sex estimation based on image classification. Of the explored algorithms, an MhNet-based model reached the highest overall testing accuracy of 90.3%. The model was able to classify all females (100.0%) and most males (78.6%) correctly. These preliminary findings encourage further research on artificial intelligence-based methods in sex estimation from the knee joint. Combining radiographic data with automated and externally validated algorithms may establish valuable tools to be utilized in forensic anthropology.
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Junno JA, Keisu A, Niinimäki M, Niinimäki J, Lehenkari P, Oura P. Gravidity, parity and knee breadth at midlife: a population-based cohort study. Sci Rep 2022; 12:12415. [PMID: 35858984 PMCID: PMC9300631 DOI: 10.1038/s41598-022-16231-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 07/06/2022] [Indexed: 11/16/2022] Open
Abstract
Gestation increases the biomechanical loading of lower extremities. Gestational loading may influence anthropometrics of articular surfaces in similar means as bone diaphyseal properties. This study aimed to investigate whether gravidity (i.e. number of pregnancies) and parity (i.e. number of deliveries) is associated with knee breadth among middle-aged women. The study sample comprised 815 women from the Northern Finland Birth Cohort 1966. The median parity count of our sample was 2 and the median gravidity count 3. At the age of 46, questionnaires were used to enquire gravidity and parity, and posteroanterior knee radiographs were used to obtain two knee breadth parameters (tibial plateau mediolateral breadth (TPML) and femoral condylar mediolateral breadth (FCML)) as representatives of articular size. The associations of gravidity and parity with knee breadth were analyzed using general linear models with adjustments for height, weight, leisure-time physical activity, smoking, and education years. Individuals with osteoarthritic changes were excluded from our sample. The mean TPML in our sample was 70.3 mm and the mean FCML 71.6 mm respectively. In the fully adjusted models, gravidity and parity showed positive associations with knee breadth. Each pregnancy was associated with 0.11–0.14% larger knee breath (p < 0.05), and each delivery accounted for an increase of 0.20% in knee breadth (p < 0.01). Between-group comparisons showed that multiparous women had 0.68–1.01% larger knee breath than nulli- and primiparous women (p < 0.05). Pregnancies and deliveries seem to increase the mediolateral breadth of the knee. This increase is potentially associated with increased biomechanical loadings during gestation.
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Affiliation(s)
- Juho-Antti Junno
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland. .,Anatomy and Cell Biology, Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, P.O. Box 5000, 90014, Oulu, Finland. .,Department of Archaeology, Faculty of Humanities, University of Oulu, Oulu, Finland. .,Archaeology, Faculty of Arts, University of Helsinki, Helsinki, Finland.
| | - Asla Keisu
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Anatomy and Cell Biology, Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, P.O. Box 5000, 90014, Oulu, Finland
| | - Maarit Niinimäki
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Department of Obstetrics and Gynecology, PEDEGO Research Unit, Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Department of Obstetrics and Gynecology, Oulu University Hospital, Oulu, Finland
| | - Jaakko Niinimäki
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland
| | - Petri Lehenkari
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Anatomy and Cell Biology, Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, P.O. Box 5000, 90014, Oulu, Finland
| | - Petteri Oura
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Department of Forensic Medicine, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Forensic Medicine Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
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Zarzeczny R, Kuberski M, Suliga E. The Effect of Three-Year Swim Training on Cardio-Respiratory Fitness and Selected Somatic Features of Prepubertal Boys. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127125. [PMID: 35742374 PMCID: PMC9222604 DOI: 10.3390/ijerph19127125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/06/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022]
Abstract
The data regarding somatic and physiological effects of sport-related physical activities in youth are limited. Moreover, whether exercise training is capable of increasing cardio-respiratory fitness remains a disputable issue. The study undertook to assess the effect of swimming training on cardio-respiratory fitness (CRF) and the development of physical traits in prepubertal boys, and to determine which of the traits is the best predictor of their CRF. Forty 10-year old prepubertal boys (10.5 ± 0.3 y) were divided into two groups (swimmers (SG), n = 20, and controls (CG), n = 20), which underwent anthropometric measurements and performed a 20 m shuttle run test (20 mSRT) semi-annually over a 3-year period. CRF indices (the number of 20 mSRT shuttles, maximal speed, and VO2max) were higher overall in the SG compared with the CG (p < 0.001). The values of the main physique variables increased faster in the CG, but the groups showed no differentiation of physical traits. In both groups, CRF indices were associated with the participants’ physical traits, the most strongly with the sum of four skinfold thicknesses in the SG and knee breadth in the CG. These results suggest that swimming training is a form of additional physical activity that improves prepubertal boys’ CRF but does not significantly affect their physical development. In using the 20 mSRT to assess the CRF of prepubertal boys, their physical activity level and age-related changes in body fatness need to be considered.
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Affiliation(s)
- Ryszard Zarzeczny
- Institute of Health Sciences, Collegium Medicum, Jan Kochanowski University, 5 Żeromskiego Str., 25-369 Kielce, Poland;
- Correspondence:
| | - Mariusz Kuberski
- Chair of Physical Culture Sciences, Jan Długosz University in Częstochowa, 13/15 Armii Krajowej Str., 42-200 Częstochowa, Poland;
| | - Edyta Suliga
- Institute of Health Sciences, Collegium Medicum, Jan Kochanowski University, 5 Żeromskiego Str., 25-369 Kielce, Poland;
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Junno JA, Keisu A, Niemelä M, Modarress Julin M, Korpelainen R, Jämsä T, Niinimäki J, Lehenkari P, Oura P. Accelerometer-measured physical activity is associated with knee breadth in middle-aged Finns - a population-based study. BMC Musculoskelet Disord 2022; 23:517. [PMID: 35642051 PMCID: PMC9153128 DOI: 10.1186/s12891-022-05475-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 05/25/2022] [Indexed: 11/13/2022] Open
Abstract
Background Articular surface size is traditionally considered to be a relatively stable trait throughout adulthood. Increased joint size reduces bone and cartilage tissue strains. Although physical activity (PA) has a clear association with diaphyseal morphology, the association between PA and articular surface size is yet to be confirmed. This cross-sectional study aimed to clarify the role of moderate-to-vigorous PA (MVPA) in knee morphology in terms of tibiofemoral joint size. Methods A sample of 1508 individuals from the population-based Northern Finland Birth Cohort 1966 was used. At the age of 46, wrist-worn accelerometers were used to monitor MVPA (≥3.5 METs) during a period of two weeks, and knee radiographs were used to obtain three knee breadth measurements (femoral biepicondylar breadth, mediolateral breadth of femoral condyles, mediolateral breadth of the tibial plateau). The association between MVPA and knee breadth was analyzed using general linear models with adjustments for body mass index, smoking, education years, and accelerometer weartime. Results Of the sample, 54.8% were women. Most individuals were non-smokers (54.6%) and had 9—12 years of education (69.6%). Mean body mass index was 26.2 (standard deviation 4.3) kg/m2. MVPA was uniformly associated with all three knee breadth measurements among both women and men. For each 60 minutes/day of MVPA, the knee breadth dimensions were 1.8—2.0% (or 1.26—1.42 mm) larger among women (p < 0.001) and 1.4—1.6% (or 1.21—1.28 mm) larger among men (p < 0.001). Conclusions Higher MVPA is associated with larger tibiofemoral joint size. Our findings indicate that MVPA could potentially increase knee dimensions through similar biomechanical mechanisms it affects diaphyseal morphology, thus offering a potential target in reducing tissue strains and preventing knee problems. Further studies are needed to confirm and investigate the association between articulation area and musculoskeletal health. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05475-7.
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Affiliation(s)
- Juho-Antti Junno
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Oulu, Finland.,Department of Archaeology, Faculty of Humanities, University of Oulu, Oulu, Finland.,Archaeology, Faculty of Arts, University of Helsinki, Helsinki, Finland
| | - Asla Keisu
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Maisa Niemelä
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland
| | - Marella Modarress Julin
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Raija Korpelainen
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Department of Sports and Exercise Medicine, Oulu Deaconess Institute Foundation sr., Oulu, Finland
| | - Timo Jämsä
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland
| | - Jaakko Niinimäki
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland
| | - Petri Lehenkari
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Petteri Oura
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland. .,Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland. .,Department of Forensic Medicine, Faculty of Medicine, University of Helsinki, Helsinki, Finland. .,Forensic Medicine Unit, Finnish Institute for Health and Welfare, Helsinki, Finland.
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Mongillo J, Vescovo G, Bramanti B. Belly fat or bloating? New insights into the physical appearance of St Anthony of Padua. PLoS One 2021; 16:e0260505. [PMID: 34932567 PMCID: PMC8691610 DOI: 10.1371/journal.pone.0260505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 11/10/2021] [Indexed: 11/19/2022] Open
Abstract
Over the centuries, iconographic representations of St Anthony of Padua, one of the most revered saints in the Catholic world, have been inspired by literary sources, which described the Saint as either naturally corpulent or with a swollen abdomen due to dropsy (i.e. fluid accumulation in the body cavities). Even recent attempts to reconstruct the face of the Saint have yielded discordant results regarding his outward appearance. To address questions about the real appearance of St Anthony, we applied body mass estimation equations to the osteometric measurements taken in 1981, during the public recognition of the Saint’s skeletal remains. Both the biomechanical and the morphometric approach were employed to solve some intrinsic limitations in the equations for body mass estimation from skeletal remains. The estimated body mass was used to assess the physique of the Saint with the body mass index. The outcomes of this investigation reveal interesting information about the body type of the Saint throughout his lifetime.
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Affiliation(s)
- Jessica Mongillo
- Department of Environmental and Prevention Sciences, University of Ferrara c.so Ercole I d’Este n.32, Ferrara, Italy
- * E-mail:
| | - Giulia Vescovo
- Department of Environmental and Prevention Sciences, University of Ferrara c.so Ercole I d’Este n.32, Ferrara, Italy
| | - Barbara Bramanti
- Department of Environmental and Prevention Sciences, University of Ferrara c.so Ercole I d’Este n.32, Ferrara, Italy
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Maijanen H, Junno JA, Keisu A, Niinimäki J, Lehenkari P, Oura P. Sex estimation from knee breadth dimensions in a Finnish population. Leg Med (Tokyo) 2021; 51:101873. [PMID: 33823332 DOI: 10.1016/j.legalmed.2021.101873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 11/29/2022]
Abstract
Sex estimation is an important part of osteological analysis of skeletons and forensic identification process. Traditionally cranial and pelvic traits are utilized for accurate sex estimation. However, post-cranial measurements have also been proven to accurately estimate sex especially from robust bones such as the femur. In this study, we investigated the potential of knee breadth dimensions in sex estimation in a Finnish population. To conduct this study we utilized a study sample (n = 1654) belonging to the Northern Finland Birth Cohort 1966. All individuals were 46 years of age at the time of the examination. Three knee breadth dimensions were measured from subjects' knee posteroanterior radiographs: femoral biepicondylar breadth (FBEB), mediolateral breadth of the femoral condyles (FCML), and mediolateral breadth of the tibial plateau (TPML). Sex estimation was performed using logistic regression. The study clearly demonstrated that all three measurements were different between males and females. Sectioning points for individual knee breadth measurements were 82.9 mm for FBEB, 76.6 mm for FCML and 75.4 mm for TPML. The classification rates ranged from 90.9% to 93.6%. The less commonly used measurements of FCML and TPML showed higher accuracy than FBEB in sex estimation. Our study confirmed that knee breadths can be successfully utilized to improve sex estimation in cases where the skeleton is only partially preserved and other major components of sex estimation are absent. We can also provide new standards for sex estimation from the knee joint in a Finnish population.
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Affiliation(s)
- Heli Maijanen
- Faculty of Humanities, Department of Archaeology, University of Oulu, Oulu, Finland.
| | - Juho-Antti Junno
- Faculty of Humanities, Department of Archaeology, University of Oulu, Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Faculty of Medicine, Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland
| | - Asla Keisu
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Faculty of Medicine, Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland
| | - Jaakko Niinimäki
- Faculty of Medicine, Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland
| | - Petri Lehenkari
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Faculty of Medicine, Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland
| | - Petteri Oura
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland; Department of Forensic Medicine, University of Helsinki, Helsinki, Finland; Forensic Medicine Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
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