Juha P. Ahtiainen, PhD

University Researcher / Yliopistotutkijaprässi_2b netti.jpg

 

 

Contact information

 

Department of Biology of Physical Activity, University of Jyväskylä

P.O.Box 35

FIN-40014 University of Jyväskylä, FINLAND

Tel. +358-40-8053740

e-mail: juha.ahtiainen (at) jyu.fi

 

 

Education

 

Ph.D. (2006), Science of Sport Coaching and Fitness testing; “Neuromuscular, Hormonal and Molecular Responses to Heavy Resistance Training in Strength Trained Men”, Department of Biology of Physical Activity, University of Jyväskylä, Finland

M.Sc. (2001), Exercise Physiology; Department of Biology of Physical Activity, University of Jyväskylä, Finland

Physical Therapy (1996), Satakunta University of Applied Sciences, Pori, Finland

 

 

Research Interests

 

• Neuromuscular adaptations to resistance training

• Muscle hypertrophy

• Cellular and molecular events modulating skeletal muscle adaptations to exercise training

• Inter-individual variability in training-induced adaptations

• Recovery profiles following different kind of exercises

• Resistance training and sport performance

 

 

Background

 

Dr. Ahtiainen completed his doctorate in Science of Sport Coaching and Fitness Testing at the Department of Biology of Physical Activity, University of Jyväskylä in 2006 under supervision of Prof. Keijo Häkkinen. After completing his PhD, he worked as a Lecturer and Senior Assistant of Sport Coaching and Fitness Testing in the Department of Biology of Physical Activity. His current position since 2011 has been University Researcher with special focus on the Science of Sport Coaching and Fitness Testing in the Department of Biology of Physical Activity. The majority of his ongoing projects are related to resistance training-induced neuromuscular adaptations in various research groups. He is also involved in a diverse range of exercise training research projects in humans and including also examining exercise training adaptations with animal models.

 

 

Selected publications

 

Ahtiainen JP, Alen M, Kraemer WJ, Pakarinen A & Häkkinen K. Muscle hypertrophy, hormonal adaptations and strength development to strength training in strength athletes and non-athletes. European Journal of Applied Physiology, 2003; 89:555-563

Ahtiainen JP, Pakarinen A, Alen M, Kraemer WJ & Häkkinen K. Short vs. long rest period between the sets in hypertrophic resistance training: influence on muscle strength, size and hormonal adaptations in trained men. Journal of Strength and Conditioning Research, 2005; 19:572-582

Ahtiainen JP, Häkkinen K. Strength athletes are capable to produce greater muscle activation and neural fatigue during high-intensity resistance exercise than nonathletes. J Strength Cond Res. 2009; 23(4):1129-34.

Ahtiainen JP, Hulmi JJ, Kraemer WJ, Lehti M, Pakarinen A, Mero AA, Karavirta L, Sillanpää E, Selänne H, Alen M, Komulainen J, Kovanen V, Nyman K, Häkkinen K. Strength, endurance or combined training elicit diverse skeletal muscle myosin heavy chain isoform proportion but unaltered androgen receptor concentration in older men. International Journal of Sports Medicine. 2009;30:879-87.

Ahtiainen JP, Lehti M, Hulmi JJ, Kraemer WJ, Alen M, Nyman K, Selänne H, Pakarinen A, Komulainen J, Kovanen V, Mero AA, Häkkinen K. Recovery after heavy resistance exercise and skeletal muscle androgen receptor and IGF-I isoform expression in strength trained men. Journal of Strength and Conditioning Research, 2011; 25:767-777

Ahtiainen JP, Hulmi JJ, Kraemer WJ, Lehti M, Nyman K, Selänne H, Alen M, Pakarinen A, Komulainen J, Kovanen V, Mero AA, Häkkinen K. Heavy resistance exercise training and skeletal muscle androgen receptor expression in younger and older men, Steroids, 2011; 76:183-92.

Ahtiainen JP, Nyman K, Huhtaniemi I, Parviainen T, Helste M, Rannikko A, Kraemer WJ, Häkkinen K. Effects of resistance training on testosterone metabolism in younger and older men. Exp Gerontol. 2015; 69:148-58.

Ahtiainen JP, Walker S, Silvennoinen M, Kyröläinen H, Nindl BC, Häkkinen K, Nyman K, Selänne H, Hulmi JJ. Exercise type and volume alter signaling pathways regulating skeletal muscle glucose uptake and protein synthesis. Eur J Appl Physiol. 2015; 115(9):1835-45.

Ahtiainen JP, Walker S, Peltonen H, Holviala J, Sillanpää E, Karavirta L, Sallinen J, Mikkola J, Valkeinen H, Mero A, Hulmi JJ, Häkkinen K. Heterogeneity in resistance training-induced muscle strength and mass responses in men and women of different ages. Age (Dordr). 2016; 38(1):10.

 

Professional and societal activities

 

Finnish Society of sport Sciences, Committee of Fitness Testing (since 2004), chair