Welcome to my personal site

by Lasse Ishøi, PhD

Head of Sport and Data Science At F.C. Nordsjælland

Sport Scientist - Clinical Researcher - Physiotherapist

Lasse Ishøi

Lasse Ishøi

Head of Sport and Data Science at Football Club Nordsjælland (a Danish first tier club), and postdoc at Sports Orthopedic Research Center - Copenhagen (SORC-C)

About me

I am a clinical researcher with a background in sport science and physiotherapy with a great interest in hip/groin and hamstring injuries, and data analytics.

I serve as the Head of Sport and Data Science in Football Club Nordsjælland, a Danish premier league football club with associated youth academies in Denmark and Ghana (rated as one of the world’s best academies according to Scouted Football), where I focus on structured data collection and associated analyses to support desicion-making processes. As part of this position, I have developed Power Apps for streamlined data collection, Power BI and R Shiny Dashboards for reporting, and also been involved in developing an SQL database.

I also work as postdoctoral researcher at the Sports Orthopedic Research Center - Copenhagen (SORC-C) at Hvidovre Hospital; an International Olympic Committee (IOC) research center centered around prevention, diagnostics and treatment of musculoskeletal problems.

I completed my PhD in 2022 at SORC-C entitled “Femoroacetabular Impingement Syndrome: Patient Acceptable Symptom State, Return t Sport, and Hip Muscle Strength After Hip Arthroscopy”.

Interests
  • Muscle Injuries
  • Hip and groin pain
  • Sport statistics
  • GPS Analyses
  • R
  • Power BI
  • Power Apps
Education

  • Statistics and Data Science, 2024 -

    Trinity University, Dublin

  • PhD (Femoroacetabular impingement Syndrome), 2019 - 2022

    University of Copenhagen, Denmark

  • MSc Sport Science, 2017

    University of Southern Denmark, Denmark

  • PostGraduate Dip. Sport and Exercise Medicine, 2016

    University of South Wales, Wales

  • BSc in Physiotherapy, 2015

    Copenhagen Metropolitan College, Denmark

Experience

 
 
 
 
 
Football Club Nordsjælland
Head of Sport and Data Science
Football Club Nordsjælland
Jun 2022 – Present Farum

Responsibilities include:

  • Leading the Sport Science Group
  • Data collection
  • Data analyses
  • R Studio / Shiny
  • SQL Server
  • Power BI
  • Power Apps
 
 
 
 
 
Sports Orthepedic Research Center - Copenhagen (SORC-C), Hvidovre Hospital
Postdoctoral Researcher
Sports Orthepedic Research Center - Copenhagen (SORC-C), Hvidovre Hospital
Apr 2022 – Present Copenhagen

Responsibilities include:

  • Research related to longstanding hip and groin pain
  • Supervision of MSc and PhD students
 
 
 
 
 
Football Club Nordsjælland
Sport Science Coordinator
Football Club Nordsjælland
Mar 2021 – Jun 2022 Farum

Responsibilities include:

  • Formulating the sport science strategy
  • Hire interns
  • Support physical coaches through data analyses
 
 
 
 
 
Sports Orthepedic Research Center - Copenhagen (SORC-C), Hvidovre Hospital
PhD student (Femoroacetabular impingement syndrome)
Sports Orthepedic Research Center - Copenhagen (SORC-C), Hvidovre Hospital
Jan 2019 – Jan 2022 Copenhagen
Research related to hip-related pain (femoroacetabular impingement syndrome) and outcome after hip arthroscopy. PhD Thesis: Femoroacetabular Impingement Syndrome: Patient Acceptable Symptom State, Return to Sport, and Hip MUscle Strength after Hip Arthroscopy.

Posts

In Situ Acceleration-Speed Profile
A simple how-to guide using R Studio
Last updated on Nov 6, 2024 11 min read
In Situ Acceleration-Speed Profile
How to tidy Second Spectrum Physical Splits csv files
From messy csv files to a tidy R format
Last updated on Mar 13, 2023 21 min read
How to tidy Second Spectrum Physical Splits csv files

My R Packages

A collection of my R packages. These are light weight packages mainly developed for my own daily practice.

AS Profile
A simple package to calculate the insitu Acceleration Speed Profile from GPS measures.
Link to Package
AS Profile
Tidy Spectrum
A simple package to tidy SecondSpectrum Physical Splits files
Link to Package
Tidy Spectrum

PhD Thesis

Femoroacetabular Impingement Syndrome: Patient Acceptable Symptom State, Return to Sport, and Hip Muscle Strength after Hip Arthroscopy

Jan 11, 2022 12:00 AM
Explore and download PhD Thesis
Explore and download PhD Thesis

Peer-Review Publications

Search for relevant content by filtering publications.
Camilla Richter, Lasse Ishoi, Otto Kraemer, Per Holmich, Kristian Thorborg (2024). Association of 5-Year Hip Arthroscopy Outcomes with Hip Morphology and Cartilage Status at Time of Surgery: A National Registry Study With HAGOS Outcomes in 281 Patients With Femoroacetabular Impingement Syndrome. Orthopaedic Journal of Sports Medicine, (12), 3, pp. 23259671241238742, https://doi.org/10.1177/23259671241238742.

Matthew D. DeLang, Lasse Ishoi, Maren Nielsen Hole, Prince Wilson, Michael Segbefia, Kristian Thorborg (2024). Implementing the Copenhagen Adductor Exercise and Nordic Hamstring Exercise in West African Academy Soccer Players: An Intervention Study. International Journal of Sports Physical Therapy, (19), 10, pp. 1188–1196, https://doi.org/10.26603/001c.123510.

Lasse Ishoi, Kristian Thorborg, Laura Krohn, Lars Louis Andersen, Asger Moller Nielsen, Mikkel Bek Clausen (2023). Maximal and Explosive Muscle Strength During Hip Adduction Squeeze and Hip Abduction Press Test Using A Handheld Dynamometer: An Intra- and Inter-tester Reliability Study. International Journal of Sports Physical Therapy, (18), 4, pp. 905–916, https://doi.org/10.26603/001c.83259.

Mathias F. Nielsen, Lasse Ishoi, Carsten Juhl, Per Holmich, Kristian Thorborg (2023). Pain provocation tests and clinical entities in male football players with longstanding groin pain are associated with pain intensity and disability. Musculoskeletal Science and Practice, (63), pp. 102719, https://doi.org/10.1016/j.msksp.2023.102719.

Lasse Ishoi, Kristian Thorborg, Thomas Kallemose, Joanne L. Kemp, Michael P. Reiman, Mathias Fabricius Nielsen, Per Holmich (2023). Stratified care in hip arthroscopy: can we predict successful and unsuccessful outcomes? Development and external temporal validation of multivariable prediction models. British Journal of Sports Medicine, (57), 16, pp. 1025–1034, https://doi.org/10.1136/bjsports-2022-105534.

Matthew D. DeLang, J. Craig Garrison, Joseph P. Hannon, Lasse Ishoi, Kristian Thorborg (2023). Weekly screening of youth male football players: a 14-week longitudinal investigation of interactions between groin pain and long lever adductor squeeze strength. Journal of Science and Medicine in Sport, (26), 3, pp. 159–163, https://doi.org/10.1016/j.jsams.2023.02.003.

Mathias F. Nielsen, Kristian Thorborg, Kasper Krommes, Kasper B. Thornton, Per Holmich, Juan J. J. Penalver, Lasse Ishoi (2022). Hip adduction strength and provoked groin pain: A comparison of long-lever squeeze testing using the ForceFrame and the Copenhagen 5-Second-Squeeze test. Physical Therapy in Sport: Official Journal of the Association of Chartered Physiotherapists in Sports Medicine, (55), pp. 28–36, https://doi.org/10.1016/j.ptsp.2022.02.002.

Neil Light, Kristian Thorborg, Kasper Krommes, Mathias F. Nielsen, Kasper B. Thornton, Per Holmich, Juan J. J. Penalver, Lasse Ishoi (2022). Rapid Spike in Hip Adduction Strength in Early Adolescent Footballers: A Study of 125 Elite Male Players From Youth to Senior. International Journal of Sports Physiology and Performance, (17), 9, pp. 1407–1414, https://doi.org/10.1123/ijspp.2022-0025.

Muhammad Ikhwan Zein, Gustaaf Reurink, Evert Verhagen, Gino M. M. J. Kerkhoffs, Nick van der Horst, Edwin Goedhart, Angelica Anggunadi, Anders Knapstad, Thor Einar Andersen, Lasse Ishoi, Per Holmich, Johannes L. Tol (2022). Study on Hamstring Re-injury Prevention (SHARP): protocol for an international multicentre, randomised controlled trial. BMJ open, (12), 11, pp. e065816, https://doi.org/10.1136/bmjopen-2022-065816.

Lasse Ishoi, Kristian Thorborg (2022). Why clinical context and relevant protocols matter: response to Impellizzeri et al. Journal of Clinical Epidemiology, (144), pp. 206–208, https://doi.org/10.1016/j.jclinepi.2021.10.021.

Lasse Ishoi, Kristian Thorborg (2021). Copenhagen adduction exercise can increase eccentric strength and mitigate the risk of groin problems: but how much is enough!. British Journal of Sports Medicine, (55), 19, pp. 1066–1067, https://doi.org/10.1136/bjsports-2020-103564.

Jack Dawkins, Lasse Ishoi, Jake O. Willott, Lars L. Andersen, Kristian Thorborg (2021). Effects of a low-dose Copenhagen adduction exercise intervention on adduction strength in sub-elite male footballers: A randomised controlled trial. TRANSLATIONAL SPORTS MEDICINE, (4), 4, pp. 447–457, https://doi.org/10.1002/tsm2.238.

Lasse Ishoi, Mathias Fabricius Nielsen, Kasper Krommes, Rasmus Skov Husted, Per Holmich, Lisbeth Lund Pedersen, Kristian Thorborg (2021). Femoroacetabular impingement syndrome and labral injuries: grading the evidence on diagnosis and non-operative treatment-a statement paper commissioned by the Danish Society of Sports Physical Therapy (DSSF). British Journal of Sports Medicine, (55), 22, pp. 1301–1310, https://doi.org/10.1136/bjsports-2021-104060.

Lasse Ishoi, Kasper Krommes, Mathias F. Nielsen, Kasper B. Thornton, Per Holmich, Per Aagaard, Juan J. J. Penalver, Kristian Thorborg (2021). Hamstring and Quadriceps Muscle Strength in Youth to Senior Elite Soccer: A Cross-Sectional Study Including 125 Players. International Journal of Sports Physiology and Performance, (16), 10, pp. 1538–1544, https://doi.org/10.1123/ijspp.2020-0713.

Lasse Ishoi, Kristian Thorborg, Marie G. Orum, Joanne L. Kemp, Michael P. Reiman, Per Holmich (2021). How Many Patients Achieve an Acceptable Symptom State After Hip Arthroscopy for Femoroacetabular Impingement Syndrome? A Cross-sectional Study Including PASS Cutoff Values for the HAGOS and iHOT-33. Orthopaedic Journal of Sports Medicine, (9), 4, pp. 2325967121995267, https://doi.org/10.1177/2325967121995267.

Michael P. Reiman, Rintje Agricola, Joanne L. Kemp, Joshua J. Heerey, Adam Weir, Pim van Klij, Ara Kassarjian, Andrea B. Mosler, Eva Ageberg, Per Holmich, Kristian Marstrand Warholm, Damian Griffin, Sue Mayes, Karim M. Khan, Kay M. Crossley, Mario Bizzini, Nancy Bloom, Nicola C. Casartelli, Laura E. Diamond, Stephanie Di Stasi, Michael Drew, Daniel J. Friedman, Matthew Freke, Sion Glyn-Jones, Boris Gojanovic, Marcie Harris-Hayes, Michael A. Hunt, Franco M. Impellizzeri, Lasse Ishoi, Denise M. Jones, Matthew G. King, Peter R. Lawrenson, Michael Leunig, Cara L. Lewis, Nicolas Mathieu, Havard Moksnes, May-Arna Risberg, Mark J. Scholes, Adam I. Semciw, Andreas Serner, Kristian Thorborg, Adam Virgile, Tobias Worner, H. Paul Dijkstra (2021). Infographic. Consensus recommendations on the classification, definition and diagnostic criteria of hip-related pain in young and middle-aged active adults from the International Hip-related Pain Research Network, Zurich 2018. British Journal of Sports Medicine, (55), 2, pp. 115–117, https://doi.org/10.1136/bjsports-2020-102219.

Lasse Ishoi, Kristian Thorborg, Joanne L. Kemp, Michael P. Reiman, Per Holmich (2021). Maximal hip muscle strength and rate of torque development 6-30 months after hip arthroscopy for femoroacetabular impingement syndrome: A cross-sectional study. Journal of Science and Medicine in Sport, (24), 11, pp. 1110–1115, https://doi.org/10.1016/j.jsams.2021.05.006.

Lasse Ishoi, Mathias F. Nielsen, Per Holmich, Kristian Thorborg (2021). Now you see it - Now you don't: A letter to the editor concerning 'Surgery is no more effective than conservative treatment for femoroacetabular impingement syndrome: Systematic review and meta-analysis of randomized controlled trials'. Clinical Rehabilitation, (35), 3, pp. 464–466, https://doi.org/10.1177/0269215520981695.

Kristian Thorborg, Lasse Ishoi, Kasper Krommes (2020). Strong and stringent hamstring strain science: trials and error!. British Journal of Sports Medicine, (54), 18, pp. 1069–1070, https://doi.org/10.1136/bjsports-2020-102213.

Lasse Ishoi, Mathias F. Nielsen, Per Holmich, Kristian Thorborg (2020). Can't See the Right Forest Plot for the Wrong Trees!. Arthroscopy: The Journal of Arthroscopic and Related Surgery: Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association, (36), 11, pp. 2787–2789, https://doi.org/10.1016/j.arthro.2020.07.046.

Lasse Ishoi, Kasper Krommes, Rasmus Skov Husted, Carsten B. Juhl, Kristian Thorborg (2020). Diagnosis, prevention and treatment of common lower extremity muscle injuries in sport - grading the evidence: a statement paper commissioned by the Danish Society of Sports Physical Therapy (DSSF). British Journal of Sports Medicine, (54), 9, pp. 528–537, https://doi.org/10.1136/bjsports-2019-101228.

Lasse Ishoi, Kasper Krommes, Rasmus Skov Husted, Carsten B. Juhl, Adam Virgile, Kristian Thorborg (2020). Infographic. Diagnosis, prevention and treatment of common lower extremity muscle injuries in sport-grading the evidence: a statement paper commissioned by the Danish Society of Sports Physical Therapy (DSSF). British Journal of Sports Medicine, (54), 18, pp. 1116–1117, https://doi.org/10.1136/bjsports-2020-102119.

Rasmus Tolstrup Larsen, Andreas Lund Hessner, Lasse Ishoi, Henning Langberg, Jan Christensen (2020). Injuries in Novice Participants during an Eight-Week Start up CrossFit Program-A Prospective Cohort Study. Sports (Basel, Switzerland), (8), 2, pp. 21, https://doi.org/10.3390/sports8020021.

Franco M. Impellizzeri, Denise M. Jones, Damian Griffin, Marcie Harris-Hayes, Kristian Thorborg, Kay M. Crossley, Michael P. Reiman, Mark James Scholes, Eva Ageberg, Rintje Agricola, Mario Bizzini, Nancy Bloom, Nicola C. Casartelli, Laura E. Diamond, Hendrik Paulus Dijkstra, Stephanie Di Stasi, Michael Drew, Daniel Jonah Friedman, Matthew Freke, Boris Gojanovic, Joshua J. Heerey, Per Holmich, Michael A. Hunt, Lasse Ishoi, Ara Kassarjian, Matthew King, Peter R. Lawrenson, Michael Leunig, Cara L. Lewis, Kristian Marstrand Warholm, Sue Mayes, Havard Moksnes, Andrea Britt Mosler, May-Arna Risberg, Adam Semciw, Andreas Serner, Pim van Klij, Tobias Worner, Joanne Kemp (2020). Patient-reported outcome measures for hip-related pain: a review of the available evidence and a consensus statement from the International Hip-related Pain Research Network, Zurich 2018. British Journal of Sports Medicine, (54), 14, pp. 848–857, https://doi.org/10.1136/bjsports-2019-101456.

Jordi Vicens-Bordas, Ernest Esteve, Azahara Fort-Vanmeerhaeghe, Marti Casals, Thomas Bandholm, Lasse Ishoi, David Opar, Anthony Shield, Kristian Thorborg (2020). Performance changes during the off-season period in football players - Effects of age and previous hamstring injury. Journal of Sports Sciences, (38), 21, pp. 2489–2499, https://doi.org/10.1080/02640414.2020.1792160.

Joanne L. Kemp, May-Arna Risberg, Andrea Mosler, Marcie Harris-Hayes, Andreas Serner, Havard Moksnes, Nancy Bloom, Kay M. Crossley, Boris Gojanovic, Michael A. Hunt, Lasse Ishoi, Nicolas Mathieu, Sue Mayes, Mark J. Scholes, Mo Gimpel, Daniel Friedman, Eva Ageberg, Rintje Agricola, Nicola C. Casartelli, Laura E. Diamond, H. Paul Dijkstra, Stephanie Di Stasi, Michael Drew, Matthew Freke, Damian Griffin, Joshua Heerey, Per Holmich, Franco M. Impellizzeri, Denise M. Jones, Ara Kassarjian, Karim M. Khan, Matthew G. King, Peter R. Lawrenson, Michael Leunig, Cara L. Lewis, Kristian Marstrand Warholm, Michael P. Reiman, Adam Semciw, Kristian Thorborg, Pim van Klij, Tobias Worner, Mario Bizzini (2020). Physiotherapist-led treatment for young to middle-aged active adults with hip-related pain: consensus recommendations from the International Hip-related Pain Research Network, Zurich 2018. British Journal of Sports Medicine, (54), 9, pp. 504–511, https://doi.org/10.1136/bjsports-2019-101458.

Lasse Ishoi, Kristian Thorborg, Per Holmich, Kasper Krommes (2020). SPRINT PERFORMANCE IN FOOTBALL (SOCCER) PLAYERS WITH AND WITHOUT A PREVIOUS HAMSTRING STRAIN INJURY: AN EXPLORATIVE CROSS-SECTIONAL STUDY. International Journal of Sports Physical Therapy, (15), 6, pp. 947–957, https://doi.org/10.26603/ijspt20200947.

Andrea Britt Mosler, Joanne Kemp, Matthew King, Peter R. Lawrenson, Adam Semciw, Matthew Freke, Denise M. Jones, Nicola C. Casartelli, Tobias Worner, Lasse Ishoi, Eva Ageberg, Laura E. Diamond, Michael A. Hunt, Stephanie Di Stasi, Michael P. Reiman, Michael Drew, Daniel Friedman, Kristian Thorborg, Michael Leunig, Mario Bizzini, Karim M. Khan, Kay M. Crossley, Rintje Agricola, Nancy Bloom, Hendrik Paul Dijkstra, Damian Griffin, Boris Gojanovic, Marcie Harris-Hayes, Joshua J. Heerey, Per Holmich, Franco M. Impellizzeri, Ara Kassarjian, Kristian Marstrand Warholm, Sue Mayes, Havard Moksnes, May-Arna Risberg, Mark J. Scholes, Andreas Serner, Pim van Klij, Cara L. Lewis (2020). Standardised measurement of physical capacity in young and middle-aged active adults with hip-related pain: recommendations from the first International Hip-related Pain Research Network (IHiPRN) meeting, Zurich, 2018. British Journal of Sports Medicine, (54), 12, pp. 702–710, https://doi.org/10.1136/bjsports-2019-101457.

Michael P. Reiman, Rintje Agricola, Joanne L. Kemp, Joshua J. Heerey, Adam Weir, Pim van Klij, Ara Kassarjian, Andrea Britt Mosler, Eva Ageberg, Per Holmich, Kristian Marstrand Warholm, Damian Griffin, Sue Mayes, Karim M. Khan, Kay M. Crossley, Mario Bizzini, Nancy Bloom, Nicola C. Casartelli, Laura E. Diamond, Stephanie Di Stasi, Michael Drew, Daniel J. Friedman, Matthew Freke, Boris Gojanovic, Sion Glyn-Jones, Marcie Harris-Hayes, Michael A. Hunt, Franco M. Impellizzeri, Lasse Ishoi, Denise M. Jones, Matthew G. King, Peter R. Lawrenson, Michael Leunig, Cara L. Lewis, Nicolas Mathieu, Havard Moksnes, May-Arna Risberg, Mark James Scholes, Adam I. Semciw, Andreas Serner, Kristian Thorborg, Tobias Worner, Hendrik Paulus Dijkstra (2020). Consensus recommendations on the classification, definition and diagnostic criteria of hip-related pain in young and middle-aged active adults from the International Hip-related Pain Research Network, Zurich 2018. British Journal of Sports Medicine, (54), 11, pp. 631–641, https://doi.org/10.1136/bjsports-2019-101453.

Lasse Ishoi, Otto Kraemer, Bjarne Mygind Klavsen, Bent Lund (2019). [Femoroacetabular impingement syndrome]. Ugeskrift for Laeger, (181), 8, pp. V09180653.

Lasse Ishoi, Kristian Thorborg, Otto Kraemer, Bent Lund, Bjarne Mygind Klavsen, Per Holmich (2019). Demographic and Radiographic Factors Associated With Intra-articular Hip Cartilage Injury: A Cross-sectional Study of 1511 Hip Arthroscopy Procedures. The American Journal of Sports Medicine, (47), 11, pp. 2617–2625, https://doi.org/10.1177/0363546519861088.

Lasse Ishoi, Per Holmich, Kristian Thorborg (2019). MEASURES OF HIP MUSCLE STRENGTH AND RATE OF FORCE DEVELOPMENT USING A FIXATED HANDHELD DYNAMOMETER: INTRA-TESTER INTRA-DAY RELIABILITY OF A CLINICAL SET-UP. International Journal of Sports Physical Therapy, (14), 5, pp. 715–723.

Lasse Ishoi, Kristian Thorborg, Otto Kraemer, Per Holmich (2019). The association between specific sports activities and sport performance following hip arthroscopy for femoroacetabular impingement syndrome: A secondary analysis of a cross-sectional cohort study including 184 athletes. Journal of Hip Preservation Surgery, (6), 2, pp. 124–133, https://doi.org/10.1093/jhps/hnz017.

Lasse Ishoi, Per Aagaard, Mathias F. Nielsen, Kasper B. Thornton, Kasper K. Krommes, Per Holmich, Kristian Thorborg (2019). The Influence of Hamstring Muscle Peak Torque and Rate of Torque Development for Sprinting Performance in Football Players: A Cross-Sectional Study. International Journal of Sports Physiology and Performance, (14), 5, pp. 665–673, https://doi.org/10.1123/ijspp.2018-0464.

Lasse Ishoi, Per Holmich, Per Aagaard, Kristian Thorborg, Thomas Bandholm, Andreas Serner (2018). Effects of the Nordic Hamstring exercise on sprint capacity in male football players: a randomized controlled trial. Journal of Sports Sciences, (36), 14, pp. 1663–1672, https://doi.org/10.1080/02640414.2017.1409609.

Kristian Thorborg, Lasse Ishoi, Otto Kraemer, Michael P. Reiman, Per Holmich (2018). HAGOS Could Be Important in the Evaluation of Patients Undergoing Hip Arthroscopy-Why Ignore It in a Sports Medicine Update When the Scientific Data Suggests Otherwise? Letter to the Editor. The American Journal of Sports Medicine, (46), 4, pp. NP6–NP7, https://doi.org/10.1177/0363546518757674.

Lasse Ishoi, Mikkel Bek Clausen, Per Aagaard (2018). Inappropriate Methods and Flawed Conclusion in: Can Resistance Training Enhance the Rapid Force Development in Unloaded Dynamic Isoinertial Multijoint Movements? A Systematic Review. Journal of Strength and Conditioning Research, (32), 1, pp. e1–e2, https://doi.org/10.1519/JSC.0000000000002305.

Lasse Ishoi, Kristian Thorborg, Otto Kraemer, Per Holmich (2018). Return to Sport and Performance After Hip Arthroscopy for Femoroacetabular Impingement in 18- to 30-Year-Old Athletes: A Cross-sectional Cohort Study of 189 Athletes. The American Journal of Sports Medicine, (46), 11, pp. 2578–2587, https://doi.org/10.1177/0363546518789070.

L. Ishoi, C. N. Sorensen, N. M. Kaae, L. B. Jorgensen, P. Holmich, A. Serner (2016). Large eccentric strength increase using the Copenhagen Adduction exercise in football: A randomized controlled trial. Scandinavian Journal of Medicine and Science in Sports, (26), 11, pp. 1334–1342, https://doi.org/10.1111/sms.12585.