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Professor Juha Toyras
Professor

Juha Toyras

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Overview

Background

Juha Töyräs holds a position of Professorial Research Fellow in the School of Information Technology and Electrical Engineering, The University of Queensland. He is also is the Head of Research and Innovation, Kuopio University Hospital and Wellbeing Services County of North Savo, and Professor of Medical Physics and Engineering, University of Eastern Finland. He has a PhD degree in the field of medical physics and his research is focused on medical devices and sensors, medical imaging, medical signal processing and connective tissue biomechanics. Since 2004, he has been the Vice/Co-Head of the Biophysics of Bone and Cartilage research group and Co-Head of the Sleep Technology and Analytics group since it was founded in January 2017 at the Department of Applied Physics, University of Eastern Finland. The groups are relatively large (three professors, c.20 research fellows and postdocs and >60 PhD students) and productive (>750 full papers and >80 PhD theses during the last 20 years). Professor Töyräs holds research grants from various European and Australian sources. He has published 323 peer-reviewed full scientific papers and numerous abstracts in international scientific meetings. In addition, he has completed supervision of 52 PhD students and number of MSc students. His papers have been cited over 14000 times and his Hirsch-index is 63 (Google Scholar). Currently, Professor Toyras supervises (University of Eastern Finland, The University of Queensland) c.20 PhD-students and number of research fellows in various fields of biomedical engineering. In addition to scientific publications and supervised academic theses, his work has led to patents and commercialization of scientific innovations. One example of this line of research is the development of a forehead EEG-electrode set for emergency medicine. The Bittium BrainStatus EEG-electrode set is patented, CE-approved and currently in global market (https://www.bittium.com/products_services/medical/bittium_brainstatus).

Availability

Professor Juha Toyras is:
Available for supervision

Qualifications

  • Masters (Coursework) of Science, University of Kuopio
  • Doctor of Philosophy, University of Kuopio

Works

Search Professor Juha Toyras’s works on UQ eSpace

406 works between 1999 and 2025

101 - 120 of 406 works

2021

Journal Article

Functional and structural properties of human patellar articular cartilage in osteoarthritis

Nissinen, Mikko T., Hänninen, Nina, Prakash, Mithilesh, Mäkelä, Janne T.A., Nissi, Mikko J., Töyräs, Juha, Nieminen, Miika T., Korhonen, Rami K. and Tanska, Petri (2021). Functional and structural properties of human patellar articular cartilage in osteoarthritis. Journal of Biomechanics, 126 110634, 110634. doi: 10.1016/j.jbiomech.2021.110634

Functional and structural properties of human patellar articular cartilage in osteoarthritis

2021

Journal Article

An in-laboratory comparison of FocusBand EEG device and textile electrodes against a medical-grade system and wet gel electrodes

Rusanen, Matias, Myllymaa, Sami, Kalevo, Laura, Myllymaa, Katja, Toyras, Juha, Leppanen, Timo and Kainulainen, Samu (2021). An in-laboratory comparison of FocusBand EEG device and textile electrodes against a medical-grade system and wet gel electrodes. IEEE Access, 9, 132580-132591. doi: 10.1109/access.2021.3113049

An in-laboratory comparison of FocusBand EEG device and textile electrodes against a medical-grade system and wet gel electrodes

2021

Journal Article

Articular cartilage optical properties in the near-infrared (NIR) spectral range vary with depth and tissue integrity

Khan, Bilour, Kafian-Attari, Iman, Nippolainen, Ervin, Shaikh, Rubina, Semenov, Dmitry, Hauta-Kasari, Markku, Töyräs, Juha and Afara, Isaac O. (2021). Articular cartilage optical properties in the near-infrared (NIR) spectral range vary with depth and tissue integrity. Biomedical Optics Express, 12 (10), 6066-6080. doi: 10.1364/boe.430053

Articular cartilage optical properties in the near-infrared (NIR) spectral range vary with depth and tissue integrity

2021

Journal Article

Beyond the apnea–hypopnea index: alternative diagnostic parameters and machine learning solutions for estimation of sleep apnea severity

Leppänen, Timo, Myllymaa, Sami, Kulkas, Antti and Töyräs, Juha (2021). Beyond the apnea–hypopnea index: alternative diagnostic parameters and machine learning solutions for estimation of sleep apnea severity. Sleep, 44 (9) zsab134. doi: 10.1093/sleep/zsab134

Beyond the apnea–hypopnea index: alternative diagnostic parameters and machine learning solutions for estimation of sleep apnea severity

2021

Journal Article

Diabetes and cardiovascular diseases are associated with the worsening of intermittent hypoxaemia

Karhu, Tuomas, Myllymaa, Sami, Nikkonen, Sami, Mazzotti, Diego R., Kulkas, Antti, Töyräs, Juha and Leppänen, Timo (2021). Diabetes and cardiovascular diseases are associated with the worsening of intermittent hypoxaemia. Journal of Sleep Research, 31 (1) e13441, e13441. doi: 10.1111/jsr.13441

Diabetes and cardiovascular diseases are associated with the worsening of intermittent hypoxaemia

2021

Journal Article

Assessment of obstructive sleep apnea-related sleep fragmentation utilizing deep learning-based sleep staging from photoplethysmography

Huttunen, Riku, Leppänen, Timo, Duce, Brett, Oksenberg, Arie, Myllymaa, Sami, Töyräs, Juha and Korkalainen, Henri (2021). Assessment of obstructive sleep apnea-related sleep fragmentation utilizing deep learning-based sleep staging from photoplethysmography. Sleep, 44 (10) zsab142, 1-10. doi: 10.1093/sleep/zsab142

Assessment of obstructive sleep apnea-related sleep fragmentation utilizing deep learning-based sleep staging from photoplethysmography

2021

Journal Article

Biomechanical, biochemical, and near infrared spectral data of bovine knee ligaments and patellar tendon

Ristaniemi, Aapo, Torniainen, Jari, Paakkonen, Tommi, Stenroth, Lauri, Finnilä, Mikko A. J., Tanska, Petri, Töyräs, Juha and Korhonen, Rami K. (2021). Biomechanical, biochemical, and near infrared spectral data of bovine knee ligaments and patellar tendon. Data in brief, 36 106976, 106976. doi: 10.1016/j.dib.2021.106976

Biomechanical, biochemical, and near infrared spectral data of bovine knee ligaments and patellar tendon

2021

Journal Article

Total durations of respiratory events are modulated within REM and NREM sleep by sleeping position and obesity in OSA patients

Rissanen, M., Oksenberg, A., Töyräs, J., Myllymaa, S. and Leppänen, T. (2021). Total durations of respiratory events are modulated within REM and NREM sleep by sleeping position and obesity in OSA patients. Sleep Medicine, 81, 394-400. doi: 10.1016/j.sleep.2021.02.020

Total durations of respiratory events are modulated within REM and NREM sleep by sleeping position and obesity in OSA patients

2021

Journal Article

Longer and deeper desaturations are associated with the worsening of mild sleep apnea: the sleep heart health study

Karhu, Tuomas, Myllymaa, Sami, Nikkonen, Sami, Mazzotti, Diego R, Töyräs, Juha and Leppänen, Timo (2021). Longer and deeper desaturations are associated with the worsening of mild sleep apnea: the sleep heart health study. Frontiers in neuroscience, 15 657126, 657126. doi: 10.3389/fnins.2021.657126

Longer and deeper desaturations are associated with the worsening of mild sleep apnea: the sleep heart health study

2021

Journal Article

Raman spectroscopy is sensitive to biochemical changes related to various cartilage injuries

Shaikh, Rubina, Nippolainen, Ervin, Virtanen, Vesa, Torniainen, Jari, Rieppo, Lassi, Saarakkala, Simo, Afara, Isaac O. and Töyräs, Juha (2021). Raman spectroscopy is sensitive to biochemical changes related to various cartilage injuries. Journal of Raman Spectroscopy, 52 (4) jrs.6062, 796-804. doi: 10.1002/jrs.6062

Raman spectroscopy is sensitive to biochemical changes related to various cartilage injuries

2021

Journal Article

Automatic respiratory event scoring in obstructive sleep apnea using a long short-term memory neural network

Nikkonen, Sami, Korkalainen, Henri, Leino, Akseli, Myllymaa, Sami, Duce, Brett, Leppanen, Timo and Toyras, Juha (2021). Automatic respiratory event scoring in obstructive sleep apnea using a long short-term memory neural network. IEEE Journal of Biomedical and Health Informatics, 25 (8) 9373894, 2917-2927. doi: 10.1109/JBHI.2021.3064694

Automatic respiratory event scoring in obstructive sleep apnea using a long short-term memory neural network

2021

Journal Article

Infrared fiber-optic spectroscopy detects bovine articular cartilage degeneration

Virtanen, Vesa, Nippolainen, Ervin, Shaikh, Rubina, Afara, Isaac O., Töyräs, Juha, Solheim, Johanne, Tafintseva, Valeria, Zimmermann, Boris, Kohler, Achim, Saarakkala, Simo and Rieppo, Lassi (2021). Infrared fiber-optic spectroscopy detects bovine articular cartilage degeneration. Cartilage, 13 (2_suppl), 1-10. doi: 10.1177/1947603521993221

Infrared fiber-optic spectroscopy detects bovine articular cartilage degeneration

2021

Journal Article

Corrigendum to "Power spectral densities of nocturnal pulse oximetry signals differ in OSA patients with and without daytime sleepiness" [Sleep Med 73 (2020) 231-237]

Kainulainen, Samu, Töyräs, Juha, Oksenberg, Arie, Korkalainen, Henri, Afara, Isaac O, Leino, Akseli, Kalevo, Laura, Nikkonen, Sami, Gadoth, Natan, Kulkas, Antti, Myllymaa, Sami and Leppänen, Timo (2021). Corrigendum to "Power spectral densities of nocturnal pulse oximetry signals differ in OSA patients with and without daytime sleepiness" [Sleep Med 73 (2020) 231-237]. Sleep medicine, 78, 202. doi: 10.1016/j.sleep.2020.11.006

Corrigendum to "Power spectral densities of nocturnal pulse oximetry signals differ in OSA patients with and without daytime sleepiness" [Sleep Med 73 (2020) 231-237]

2021

Journal Article

Characterization of connective tissues using near-infrared spectroscopy and imaging

Afara, Isaac O., Shaikh, Rubina, Nippolainen, Ervin, Querido, William, Torniainen, Jari, Sarin, Jaakko K., Kandel, Shital, Pleshko, Nancy and Töyräs, Juha (2021). Characterization of connective tissues using near-infrared spectroscopy and imaging. Nature Protocols, 16 (2), 1297-1329. doi: 10.1038/s41596-020-00468-z

Characterization of connective tissues using near-infrared spectroscopy and imaging

2021

Journal Article

Discrete element and finite element methods provide similar estimations for hip joint contact mechanics during walking gait

Li, Mao, Venäläinen, Mikko S., Chandra, Shekhar S., Patel, Rushabh, Fripp, Jurgen, Engstrom, Craig, Korhonen, Rami K., Töyräs, Juha and Crozier, Stuart (2021). Discrete element and finite element methods provide similar estimations for hip joint contact mechanics during walking gait. Journal of Biomechanics, 115 110163, 1-11. doi: 10.1016/j.jbiomech.2020.110163

Discrete element and finite element methods provide similar estimations for hip joint contact mechanics during walking gait

2021

Journal Article

Dual-contrast computed tomography enables detection of equine posttraumatic osteoarthritis in vitro

Saukko, Annina E. A., Sarin, Jaakko K., Nykänen, Olli, Nissi, Mikko J., te Moller, Nikae C. R., Weinans, Harrie, Mancini, Irina A. D., Visser, Jetze, Brommer, Harold, van Weeren, P. Réné, Malda, Jos, Grinstaff, Mark W. and Töyräs, Juha (2021). Dual-contrast computed tomography enables detection of equine posttraumatic osteoarthritis in vitro. Journal of Orthopaedic Research, 40 (3) jor.25066, 703-711. doi: 10.1002/jor.25066

Dual-contrast computed tomography enables detection of equine posttraumatic osteoarthritis in vitro

2021

Journal Article

Structure, composition and fibril-reinforced poroviscoelastic properties of bovine knee ligaments and patellar tendon

Ristaniemi, Aapo, Regmi, Dristi, Mondal, Diponkor, Torniainen, Jari, Tanska, Petri, Stenroth, Lauri, Finnilä, Mikko A. J., Töyräs, Juha and Korhonen, Rami K. (2021). Structure, composition and fibril-reinforced poroviscoelastic properties of bovine knee ligaments and patellar tendon. Journal of the Royal Society. Interface, 18 (174) 20200737, 1-11. doi: 10.1098/rsif.2020.0737

Structure, composition and fibril-reinforced poroviscoelastic properties of bovine knee ligaments and patellar tendon

2021

Journal Article

Structural, compositional, and functional effects of blunt and sharp cartilage damage on the joint: A 9-month equine groove model study

Te Moller, Nikae C R, Mohammadi, Ali, Plomp, Saskia, Serra Bragança, Filipe M, Beukers, Martijn, Pouran, Behdad, Afara, Isaac O, Nippolainen, Ervin, Mäkelä, Janne T A, Korhonen, Rami K, Töyräs, Juha, Brommer, Harold and van Weeren, P René (2021). Structural, compositional, and functional effects of blunt and sharp cartilage damage on the joint: A 9-month equine groove model study. Journal of Orthopaedic Research, 39 (11) jor.24971, 1-13. doi: 10.1002/jor.24971

Structural, compositional, and functional effects of blunt and sharp cartilage damage on the joint: A 9-month equine groove model study

2020

Journal Article

Neural network analysis of nocturnal SpO2 signal enables easy screening of sleep apnea in patients with acute cerebrovascular disease

Leino, Akseli, Nikkonen, Sami, Kainulainen, Samu, Korkalainen, Henri, Töyräs, Juha, Myllymaa, Sami, Leppänen, Timo, Ylä-Herttuala, Salla, Westeren-Punnonen, Susanna, Muraja-Murro, Anu, Jäkälä, Pekka, Mervaala, Esa and Myllymaa, Katja (2020). Neural network analysis of nocturnal SpO2 signal enables easy screening of sleep apnea in patients with acute cerebrovascular disease. Sleep Medicine, 79, 71-78. doi: 10.1016/j.sleep.2020.12.032

Neural network analysis of nocturnal SpO2 signal enables easy screening of sleep apnea in patients with acute cerebrovascular disease

2020

Journal Article

Machine learning augmented near-infrared spectroscopy: in vivo follow-up of cartilage defects

Sarin, J. K., Te Moller, N. C. R., Mohammadi, A., Prakash, M., Torniainen, J., Brommer, H., Nippolainen, E., Shaikh, R., Mäkelä, J. T. A., Korhonen, R. K., van Weeren, P. R., Afara, I. O. and Töyräs, J. (2020). Machine learning augmented near-infrared spectroscopy: in vivo follow-up of cartilage defects. Osteoarthritis and Cartilage, 29 (3), 423-432. doi: 10.1016/j.joca.2020.12.007

Machine learning augmented near-infrared spectroscopy: in vivo follow-up of cartilage defects

Funding

Current funding

  • 2021 - 2025
    Revolution of sleep diagnostics and personalized health care based on digital diagnostics and therapeutics with health data integration
    NHMRC European Union Collaborative Research Grants
    Open grant
  • 2021 - 2025
    Revolution of sleep diagnostics and personalized health care based on digital diagnostics and therapeutics with health data integration
    University of Reykjavik
    Open grant

Past funding

  • 2021 - 2024
    Deep learning and physiology based approach to derive and link obstructive sleep apnoea phenotypes and symptomatology
    NHMRC IDEAS Grants
    Open grant
  • 2021 - 2024
    Osteoarthritis Compass: Personalized prediction of disease onset and progression. (NHMRC Ideas Grant administered by Griffith University)
    Griffith University
    Open grant

Supervision

Availability

Professor Juha Toyras is:
Available for supervision

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Supervision history

Current supervision

Completed supervision

Media

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