Below is a list of scientific publications that either involve the VentriJect VO2-max Estimation Algorithm, the VentriJect Seismofit Sensor or that support the importance of estimating VO2-max.

Please note that while some of these publications are free, others require paying a fee for the download. 

Validation Study Publications

Validity and reliability of seismocardiography for the estimation of cardiorespiratory fitness
Mikkel Mikkel T. Hansen, Tue Rømer, Amalie Højgaard, Karina Husted, Kasper Sørensen, Samuel E. Schmidt, Flemming Dela, Jørn W. Helge
Cardiovascular Digital Health Journal, 2023

Accuracy of a Clinical Applicable Method for Prediction of VO2max Using Seismocardiography
Mikkel Thunestvedt Hansen, Karina Louise Skov Husted, Mathilde Fogelstrom, Tue Romer, Samuel Emil Schmidt, Kasper Sørensen, Jorn Helge
International Journal of Sports Medicine. 2022

A Chest-Mounted Accelerometer for Estimation of Cardiorespiratory Fitness
Samuel Emil Schmidt, Mikkel Thunestvedt Hansen, Kasper Sørensen, Tue Rømer, Lasse Gliemann, Dan Stieper Karbing, Mathias Krogh Poulsen, Jørn W. Helge, Peter Søgaard
2022 Cardiovascular Digital Health Journal – HRX San Diego

Estimation of Cardiorespiratory fitness using a using a chest mounted accelerometer
Samuel Emil Schmidt, Mikkel Thunestvedt Hansen, Tue Rømer, Peter Søgaard, Jørn W. Helge
2022 ESC congress – Barcelona

Determination of Maximal Oxygen Uptake Using Seismocardiography at Rest
Mikkel Hansen, Birk Mygind, Tue Rømer, Kasper Sørensen, Samuel Emil Schmidt, Jørn W. Helge, Mathilde Fogelstrøm
2021 Computing in Cardiology (CinC)

Validity and reliability of a clinical non-exercise method for assessment of cardiorespiratory fitness using seismocardiography
M Thunestvedt Hansen, T Roemer, A Hoejgaard, K Husted, K Sørensen, S Schmidt, F Dela, J Wulff Helge
European Heart Journal, Volume 42, Issue Supplement_1, October 2021, ehab724.3172

A Clinical Method for Estimation of VO2max Using Seismocardiography
Kasper Sørensen, Mathias Krogh Poulsen, Dan Stieper Karbing, Peter Søgaard, Johannes Jan Struijk, Samuel Emil Schmidt
International Journal of Sports Medicine, 2020 sep.;41(10):661-668
Accepted Manuscript Available: AAU VBN

Background Publications

Changes in Cardiorespiratory Fitness and Survival in Patients With or Without Cardiovascular Disease
Peter Kokkinos, Charles Faselis, Immanuel Babu Henry Samuel, Carl J. Lavie, Jiajia Zhang, Jose D. Vargas, Andreas Pittaras, Michael Doumas, Pamela Karasik, Hans Moore, Michael Heimal, and Jonathan Myers
J Am Coll Cardiol. 2023 Mar, 81 (12) 1137–1147

It’s Time to (Again) Recognize the Considerable Clinical and Public Health Significance of Cardiorespiratory Fitness
Leonard A. Kaminsky, Mary T. Imboden, and Cemal Ozemek
J Am Coll Cardiol, 81 (12) 1148–1150

Importance of Assessing Cardiorespiratory Fitness in Clinical Practice: A Case for Fitness as a Clinical Vital Sign: A Scientific Statement From the American Heart Association
Robert Ross, Steven N. Blair, Ross Arena, Timothy S. Church, Jean-Pierre Després, Barry A. Franklin, William L. Haskell, Leonard A. Kaminsky, Benjamin D. Levine, Carl J. Lavie, Jonathan Myers, Josef Niebauer, Robert Sallis, Susumu S. Sawada, Xuemei Sui and Ulrik Wisløff
Circulation. 2016;134:e653–e699

Adaptation to a standardized training program and changes in fitness in a large, heterogeneous population: the HERITAGE Family Study
Skinner JS, Wilmore KM, Krasnoff JB, Jaskólski A, Jaskólska A, Gagnon J, Province MA, Leon AS, Rao DC, Wilmore JH, Bouchard C
Med Sci Sports Exerc. 2000 Jan;32(1):157-61

Cardiorespiratory fitness as a quantitative predictor of all-cause mortality and cardiovascular events in healthy men and women: a meta-analysis
Satoru Kodama 1, Kazumi Saito, Shiro Tanaka, Miho Maki, Yoko Yachi, Mihoko Asumi, Ayumi Sugawara, Kumiko Totsuka, Hitoshi Shimano, Yasuo Ohashi, Nobuhiro Yamada, Hirohito Sone
JAMA 2009 May 20;301(19):2024-35

High-intensity interval training in patients with lifestyle-induced cardiometabolic disease: a systematic review and meta-analysis
Kassia S Weston, Ulrik Wisløff, Jeff S Coombes
Br J Sports Med. 2014 Aug;48(16):1227-34

Association of Cardiorespiratory Fitness With Long-term Mortality Among Adults Undergoing Exercise Treadmill Testing
Mandsager K, Harb S, Cremer P, Phelan D, Nissen SE, Jaber W.
JAMA Netw Open. 2018;1(6):e183605

Reference values for peak oxygen uptake: cross-sectional analysis of cycle ergometry-based cardiopulmonary exercise tests of 10 090 adult German volunteers from the Prevention First Registry
Daniel Rapp, Jürgen Scharhag, Stefan Wagenpfeil, Johannes Scholl