Neuromuscular performance characteristics of open-wheel and rally drivers

von Backman, Jani (Autor), ... Häkkinen, Keijo (Autor), Ylinen, Jari (Autor), Häkkinen, Arja (Autor), Kyröläinen, Heikki (Autor)
Erschienen in Journal of strength and conditioning research, 19 (2005), 4, S. 777-784, Lit.

High responders to hypertrophic strength training also tend to lose more muscle mass and strength during detraining than low responders : erratum

von Räntilä, Aapo (Autor), ... Ahtiainen, Juha P. (Autor), Avela, Janne (Autor), Restuccia, Joel (Autor), Kidgell, Dawson (Autor), Häkkinen, Keijo (Autor)
Erschienen in Journal of strength and conditioning research, 38 (2024), 4, S. 639, Lit.

Effects of L-carnitin L-trartrate supplementation on muscle oxygenation responses to resistance exercise

von Spiering, Barry A. (Autor), ... Kraemer, William J. (Autor), Hatfield, Disa L. (Autor), Vingren, Jakob L. (Autor), Fragala, Maren S. (Autor), Ho, Jen Yu (Autor), Thomas, Gwendolyn A. (Autor), Häkkinen, Keijo (Autor), Volek, Jeff S. (Autor)
Erschienen in Journal of strength and conditioning research, 22 (2008), 4, S. 1130-1135, Lit.

Power output and electromyographic activity during and after a moderate load muscular endurance session

von Smilios, Ilias (Autor), ... Häkkinen, Keijo (Autor), Tokmakidis, Savvas P. (Autor)
Erschienen in Journal of strength and conditioning research, 24 (2010), 8, S. 2122-2131, Lit.

Lower-body muscle structure and its role in jump performance during squat, countermovement, and depth drop jumps

von Earp, Jacob E. (Autor), ... Kraemer, William J. (Autor), Newton, Robert U. (Autor), Comstock, Brett A. (Autor), Fragala, Maren S. (Autor), Dunn-Lewis, Courtenay (Autor), Solomon-Hill, Glenn (Autor), Penwell, Zachary R. (Autor), Powell, Matthew D. (Autor), Volek, Jeff S. (Autor), Denegar, Craig R. (Autor), Häkkinen, Keijo (Autor), Maresh, Carl M. (Autor)
Erschienen in Journal of strength and conditioning research, 24 (2010), 3, S. 722-729, Lit.

Recovery after heavy resistance exercise and skeletal muscle androgen receptor and insulin-like growth factor-I isoform expression in strength trained men

von Ahtiainen, Juha P. (Autor), ... Lehti, Maarit (Autor), Hulmi, Juha J. (Autor), Kraemer, William J. (Autor), Alen, Markku (Autor), Nyman, Kai (Autor), Selänne, Harri (Autor), Pakarinen, Arto (Autor), Kovanen, Vuokko (Autor), Mero, Antti A. (Autor), Häkkinen, Keijo (Autor), Komulainen, Jyrki (Autor)
Erschienen in Journal of strength and conditioning research, 25 (2011), 3, S. 767-777, Lit.

EMG, muscle fibre and force production characteristics during a 1 year training period in elite weight-lifters

von Häkkinen, Keijo (Autor), ... Komi, Paavo V. (Autor), Alen, Markku (Autor), Kauhanen, Heikki (Autor)
Erschienen in European journal of applied physiology, 56 (1987), 4, S. 419-427, Lit.

Force production characteristics of leg extensor, trunk flexor and extensor muscles in male and female basketball players

von Häkkinen, Keijo (Autor) ...
Erschienen in The Journal of sports medicine and physical fitness, 31 (1991), 3, S. 325-331, Lit.

Training-induced changes in neuromuscular performance under voluntary and reflex conditions

von Häkkinen, Keijo (Autor), ... Komi, Paavo V. (Autor)
Erschienen in European journal of applied physiology, 55 (1986), 2, S. 147-155, Lit.

Alterations of mechanical characteristics of human skeletal muscle during strength training

von Häkkinen, Keijo (Autor), ... Komi, Paavo V. (Autor)
Erschienen in European journal of applied physiology, 50 (1983), 2, S. 161-172, Lit.

Neural activation and force production of arm flexor muscles during normal and fatigue loading against constant and variable resistance

von Kauhanen, Heikki (Autor), ... Häkkinen, Keijo (Autor), Komi, Paavo V. (Autor)
Erschienen in Scandinavian journal of sports sciences, 11 (1989), 2, S. 79-86, Lit.

Training and detraining adaptations in electromyographic, muscle fibre and force production characteristics of human leg extensor muscles with special reference to prolonged heavy...

von Häkkinen, Keijo (Autor) ... Jyväskylä: Universität Erfurt (Verlag), 1986, 106 S., Lit.

Muscle fiber characteristics, muscle cross-sectional area and force production in strength athletes, physically active males and females

von Ryushi, T. (Autor), ... Häkkinen, Keijo (Autor), Kauhanen, Heikki (Autor), Komi, Paavo V. (Autor)
Erschienen in Scandinavian journal of sports sciences, 10 (1988), Bd. 1, S. 7-15, Lit.

Effect of explosive type strength training on electromyographic and force production characteristics of leg extensor muscles during concentric and various stretch-shortening cycle...

von Häkkinen, Keijo (Autor), ... Komi, Paavo V. (Autor)
Erschienen in Scandinavian journal of sports sciences, 7 (1985), 2, S. 65-76, Lit.

Effects of fatigue and recovery on electromyographic and isometric force- and relaxation-time characteristics of human skeletal muscle

von Häkkinen, Keijo (Autor), ... Komi, Paavo V. (Autor)
Erschienen in European journal of applied physiology, 55 (1986), 6, S. 588-596, Lit.

Effects of the tennis tournament on players' physical performance, hormonal responses, muscle damage and recovery

von Ojala, Tuomo (Autor), ... Häkkinen, Keijo (Autor)
Erschienen in Journal of sports science and medicine, 12 (2013), 2 (Special issue on tennis), S. 240-248, Lit.

Changes in electrical and mechanical behavior of leg extensor muscles during heavy resistance strength training

von Häkkinen, Keijo (Autor), ... Komi, Paavo V. (Autor)
Erschienen in Scandinavian journal of sports sciences, 7 (1985), 2, S. 55-64, Lit.

Increased fascicle length but not patellar tendon stiffness after accentuated eccentric-load strength training in already-trained men

von Walker, Simon (Autor), ... Trezise, Joanne (Autor), Haff, Guy Gregory (Autor), Newton, Robert U. (Autor), Häkkinen, Keijo (Autor), Blazevich, Anthony J. (Autor)
Erschienen in European journal of applied physiology, 120 (2020), 11, S. 2371-2382, Lit.

Effects of upper body eccentric versus concentric strength training and detraining on maximal force, muscle activation, hypertrophy and serum hormones in women

von Häkkinen, Keijo (Autor), ... Newton, Robert U. (Autor), Walker, Simon (Autor), Häkkinen, Arja (Autor), Krapi, Sonja (Autor), Rekola, Rebekka (Autor), Koponen, Päivi (Autor), Kraemer, William J. (Autor), Haff, G. Gregory (Autor), Blazevich, Anthony J. (Autor), Nosaka, Kazunori (Autor), Ahtiainen, Juha P. (Autor)
Erschienen in Journal of sports science and medicine, 21 (2022), 2, S. 200-213, Lit.

Book of Abstracts

von Häkkinen, Keijo (Autor), ... Komi, Paavo V. (Autor), Mero, Antti (Autor), Keskinen, Kari L. (Autor) Jyväskylä: 1995, 1042 S., Lit.