Keijo Häkkinen


Professor (emeritus) Keijo Häkkinen                                                                                                               

Neuromuscular Research Center, Biology of Physical Activity

Contact information: 

Neuromuscular Research Center

Biology of Physical Activity

Faculty of Sport and Health Sciences P.O. Box 35 (VIV)

40014 University of Jyväskylä, Finland


Tel.: +358 45 3407270



1975  B.Sc. (University of Jyväskylä, Finland)

1977  M.Sc. (University of Jyväskylä, Finland)

1982  Licentiate of Philosophy (University of Jyväskylä, Finland)

1986   PhD (University of Jyväskylä, Finland)


Scientific competence:

1989  Scientific competence for the academic chair: Professorship in Biomechanics

1991  Scientific competence for the academic chair: Professorship in Exercise Physiology         

1992  Docent (Biology of Physical Training) Medical Faculty, University of Oulu, Finland

2001 Scientific competence for the academic chair: Professorship in Science of Sport Coaching and Fitness Testing        


Most important international research related visits:

1994 (5 months) Visiting Professor (Penn State University, Center for Sports Medicine, USA)

1997 (5 months) Visiting Professor (Southern Cross University, AUS)

2000 (2 weeks) Visiting Emens Distinguished Professor (Ball State University, USA)

2013 (2 weeks) Visiting Professor (Edith Cowan University, Health and Exercise Sciences, AUS)

2018 (1 week) Co-operative research visit (Edith Cowan University, Exercise and Sport Science, AUS)


Three most important international research co-workers including the highest number of high level international co-publications over the years of 1992-2021:

Professor William J. Kraemer, Ohio State University, USA

Professor Robert U. Newton, Edith Cowan University, Australia

Professor Mikel Izquierdo, Public University of Pamplona, Pamplona, Spain


Most important scientific honors:

1996-2001 Appointment as Honorary Research Fellow at Southern Cross University, Lismore, AUS

2000 Appointment as Emens Distinguished Professor at Ball State University, USA

2006 Distinguished Invited Lecturer Award at the University of Connecticut, USA

2013 The University’s Jubilee Year Award for remarkable life’s work, University of Jyväskylä, FIN

2015 The National Strength and Conditioning Association NSCA Impact Award, Colorado, USA


Major research interests:

  1. Acute neuromuscular, hormonal and mechanical responses to various resistance exercise protocols in men and women, various athlete groups and aging population 
  2. Neuromuscular, hormonal and physiologic adaptations during prolonged strength training and detraining in men and women, adolescents, athletes and aging population 
  3. Acute neuromuscular, cardiorespiratory and physiologic responses and chronic adaptations to various combined endurance and strength training modes in men and women and endurance athletes
  4. Physical performance profiles and competitive performance in various sport events as well as training, seasonal and detraining adaptations e.g. in weightlifting, bodybuilding and fitness sports, wrestling and judo, track and field: sprinting & jumping, throwing and endurance athletes, cross-country skiers, basketball, volleyball, football and ice-hockey


 International scientific publications in numbers:

  • Original peer-reviewed scientific articles: around 420  
  • Peer-reviewed reviews in scientific journals, articles in books and conference proceedings: around 60
  • Books: 8
  • Non-refereed scientific articles: around 20
  • Abstracts: around 420


List of international original peer-reviewed scientific articles in PUBMED:


Domestic scientific, professional and other publications:

  • Articles, reviews, and others: around 175
  • Books: 9

 Summary of international and national presentations in numbers:

  • International invited and other scientific presentations in scientific congresses: around 110
  • Invited presentations in national congresses and seminars: over 75

 Summary of PhD education in numbers:

  • PhD students supervised for their doctoral degrees: 25  
  • Currently PhD students under supervision: 5                                                                                                                                                                                                                                            
    Most important scientific related actions:
  • Member in the Council of the International Society of Biomechanics
  • Member in the European College of Sport Science
  • Chairman and founder member in the International Scientific Committee of International Conference Series on Strength Training (1998-2022)
  • Member in the editorial boards of several international scientific journals
  • Chairman and organizer of a number of International Congresses (around 30)
  • Chairperson of a number of sessions of International Congresses (around 45)
  • Acting as a Reviewer and Opponent for a number of PhD Theses
  • Acting as a Custodian at the Oral Defense of a number of PhD Theses (around 15)
  • The award of the Jyväskylä Convention Bureau for organizing the congress of the year of 2015 in the city of Jyväskylä
  • Acting as an international expert evaluator of the scientific competence for professorships

  • University Jubilee Year Award for remarkable life work, University of Jyväskylä (2013) 

  • Internationally recognized top level researcher in his field based on the international scientific publications (2020)                                                                                                                                                              

     Most important professional and societal actions: 

  • Vice member in the board of the University of Jyväskylä
  • Chairman in the Committee of the Postgraduate Studies, Faculty of Sport and Health Sciences
  • Chairman of the Research School, Faculty of Sport and Health Sciences, University of Jyväskylä•
  • Vice Dean in the Faculty of Sport and Health Sciences, University of Jyväskylä
  • Head of the Department of Biology of Physical Activity
  • Member in the Ethics Committee, University of Jyväskylä
  • Silver award from the Finnish Society of Sport Science                                                                          

    Most important sport related actions:

    Personal physical activities and competitive sport:

         • Background as a competitive athlete in weightlifting (1969-1976)     

          and in track and field (1965-1971)   (and 2003-2011) 

         • Enjoying still today lifting weights    and training for endurance by biking 

  Actual professional sport related activities:

  • Coach in weightlifting in Finland (1977-1977) 
  •  Expert in the Finnish Weightlifting Federation
  • Chairman in the Scientific Committee of the Finnish Weightlifting Federation
  • Member in the Board of the Finnish Weightlifting Federation
  • Dibloma from the Finnish Weightlifting Federation 
  • Medal of the 80th Anniversary of the Finnish Weightlifting Federation                    
  • Expert member in the Finnish Track and Field Association
  • Member and vice chair in the Board of the Research Institute for Olympic Sports, Jyväskylä, Finland (1991-2014, 2014-2017)
  • Member in the Polar Fitness Segment Scientific Advisory Board
  • Member in the Research and Development Group of the Finnish Top Sport within the "Change Group of Finnish Top Sport"
  • Silver award from the Sport Club of Jyväskylän Kenttäurheiljat


For more information see ResearchGatehttps://www.res: 


Some examples of Media appearances:


Nice comments by Keijo Häkkinen on the article by Taber et al. 2021

Constructive comments by Keijo Häkkinen on the review related to combined endurance and strength training by Petre et al. 2021

Nice comments by Keijo Häkkinen on the systematic review and meta analysis by Marhsall et al. 2021

A positive comment by Keijo Häkkinen on the article by Banyard et al. 2021

A positive comment by Keijo Häkkinen on the new paper by Najera-Ferrer et al. 2021 related to concurrent training

Presentation by Scienze Motorie TV (Italy) (YouTube) about the scientific achievements by professor  Keijo Häkkinen

Our new review paper about strength training by Lopez et al. 2021 just came out in MSSE 

Positive comments by Keijo Häkkinen on the paper related to interference phenomenon during concurrent training by Vechin et al. 2021


Our new strength training and tapering paper by Seppänen and Häkkinen coming out soon

Keijo Häkkinen Jyväskylän yliopistosta tutkimuksen maailman huipputasolla

Yksi Helsingin Sanomien @hsfi listaamista huippututukijoista on valmennus- ja testausopin professori Keijo Häkkinen

Classic paper by Häkkinen et al. 1988 nicely noted by professor Greg Haff 

Another classic paper by Häkkinen et al. 1985 nicely noted by professor Paul Marshall

Our new strength and/or endurance training paper ín female horseback riders 2020

Our new Ahtiainen et al. paper 2020

Keijo Häkkinen refers to a new paper by Latella et al. 2020

Comment by professor Galpin about the evaluation by Keijo Häkkinen of his new paper 2020  

Keijo Häkkinen refers to a new paper in 2020


Keijo Häkkinen ja Raahe

Voimaharjoittelu on erityisen tärkeää ikääntyvillä ihmisillä

Strength training is beneficial in endurance runners

Two Strength Training Books (in Finnish) and two authors of these books (Keijo Häkkinen in 1990 and his former student Tuomas Rytkönen in 2018), Jyväskylä

One of our new publications (2019) that received a lot of interest


Feedback from the 11th International Conference on Strength Training, Perth, Australia

Keijo Häkkinen presenting at 11th ICST2018, Perth, Australia

Liikuntabiologeilla vahva edustus kansainvälisessä kongressissa Australiassa 

Sienestys ei yksin riitä fyysisen kunnon kannalta

Laaja kansainvälinen Voima- ja kestävyysharjoittelun Symposium Jyväskylässä

New record in the number of participants at our 19th International Symposium, Jyväskylä, Finland

New article on Combined Strength and Endurance Training

Fyysisen kunnon mittaaminen, 2013, Käsi- ja oppikirja kuntotestaajille


Intensive weight loss does not cause major health problems for female fitness competitors


Fitness urheilun painonpudotukset riskit odotettua pienemmät

A summary video about the 11th International Conference on Strength Training, ICST2016, Kyuto, Japan

Näin yhdistät voima- ja kestävyysharjoittelun, Etelä-Saimaa


Helsingin Sanomat: Juoksija tarvitsee voimatreeniä ja voimalijakin jonkin verran kestävyysharjoittelua

Jyväskylän yliopiston professori Keijo Häkkiselle kansainvälinen tunnustus IMPACT AWARD voimaharjoitteluun liittyvästä tutkimustyöstä USA:sta NSCA järjestöltä

Jyväskylässä vuonna 2015 järjestettyjen kansainvälisten kongressien palkinto jaettiin


Savon Sanomat: Pitääkö kestävyyskuntoilijan karttaa punttitreeniä vai ei?

Performing cardio and strength in the same training session: In which order?     


Cardio or strength training first in a single training session? Or could it be sex specific?

Jyväskylän yliopiston juhlavuoden palkinto merkittävästä elämäntyöstä liikuntabiologian alalla professori Keijo Häkkiselle


Never give up an active life, Prof. Keijo Häkkinen presenting at the International Seminar in Jyväskylä


Longevity: Prof. Keijo Häkkinen: The aging neuromuscular system in men and women still responds to strength training


Lääkärilehti: Prof. Keijo Häkkinen: Voimaharjoittelu kannattaa aloittaa myös ikääntyneenä