K. Häkkinen

10.2k total citations · 2 hit papers
102 papers, 7.5k citations indexed

About

K. Häkkinen is a scholar working on Orthopedics and Sports Medicine, Biomedical Engineering and Rehabilitation. According to data from OpenAlex, K. Häkkinen has authored 102 papers receiving a total of 7.5k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Orthopedics and Sports Medicine, 35 papers in Biomedical Engineering and 21 papers in Rehabilitation. Recurrent topics in K. Häkkinen's work include Sports Performance and Training (70 papers), Muscle activation and electromyography studies (31 papers) and Exercise and Physiological Responses (21 papers). K. Häkkinen is often cited by papers focused on Sports Performance and Training (70 papers), Muscle activation and electromyography studies (31 papers) and Exercise and Physiological Responses (21 papers). K. Häkkinen collaborates with scholars based in Finland, United States and Spain. K. Häkkinen's co-authors include Markku Alén, Paavo V. Komi, William J. Kraemer, A. Pakarinen, Robert U. Newton, Arja Häkkinen, Mauri Kallinen, Míkel Izquierdo, Heikki Kauhanen and Jussi Mikkola and has published in prestigious journals such as Scientific Reports, Journal of Applied Physiology and Journal of Biomechanics.

In The Last Decade

K. Häkkinen

101 papers receiving 6.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Changes in isometric force‐ and relaxation‐time, electromyographic and muscle fibre characteristics of human skeletal muscle during strength training and detraining

1985 602 citations K. Häkkinen, Markku Alén et al. Acta Physiologica Scandinavica profile →
Changes in agonist-antagonist EMG, muscle CSA, and force during strength training in middle-aged and older people

1998 583 citations K. Häkkinen, Mauri Kallinen et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
K. Häkkinen Finland	49	4.4k	2.0k	1.6k	1.5k	1.4k	102	7.5k
Carlos Ugrinowitsch Brazil	48	4.6k 1.1×	1.6k 0.8×	2.9k 1.8×	1.3k 0.8×	1.3k 1.0×	255	8.3k
Keijo Häkkinen Finland	58	6.0k 1.4×	2.1k 1.1×	2.5k 1.5×	2.6k 1.7×	2.3k 1.7×	208	10.6k
Jesper L. Andersen Denmark	57	4.7k 1.1×	3.3k 1.6×	1.5k 0.9×	3.2k 2.1×	2.5k 1.8×	169	11.5k
E. Cafarelli Canada	36	3.0k 0.7×	2.3k 1.1×	1.4k 0.9×	956 0.6×	970 0.7×	57	6.2k
Romuald Lepers France	49	5.8k 1.3×	2.9k 1.5×	2.0k 1.2×	1.0k 0.7×	1.4k 1.0×	263	8.4k
David A. Jones United Kingdom	45	3.3k 0.8×	2.0k 1.0×	996 0.6×	1.1k 0.7×	847 0.6×	109	6.7k
D. G. Sale Canada	49	7.1k 1.6×	4.5k 2.2×	2.5k 1.5×	1.4k 0.9×	1.1k 0.8×	107	11.2k
David A. Jones United Kingdom	48	2.8k 0.6×	3.9k 1.9×	1.1k 0.7×	1.4k 0.9×	849 0.6×	84	7.5k
Sandra K. Hunter United States	51	3.7k 0.8×	4.0k 2.0×	1.4k 0.9×	1.1k 0.7×	599 0.4×	177	8.4k
Hans Degens United Kingdom	49	2.6k 0.6×	1.6k 0.8×	1.0k 0.6×	4.0k 2.6×	1.2k 0.9×	274	10.0k

Countries citing papers authored by K. Häkkinen

Since Specialization

Citations

This map shows the geographic impact of K. Häkkinen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by K. Häkkinen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. Häkkinen more than expected).

Fields of papers citing papers by K. Häkkinen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. Häkkinen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by K. Häkkinen. The network helps show where K. Häkkinen may publish in the future.

Co-authorship network of co-authors of K. Häkkinen

This figure shows the co-authorship network connecting the top 25 collaborators of K. Häkkinen. A scholar is included among the top collaborators of K. Häkkinen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with K. Häkkinen. K. Häkkinen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Lee, Joseph H., Matti Jauhiainen, Anni Joensuu, et al.. (2019). Substantial fat mass loss reduces low-grade inflammation and induces positive alteration in cardiometabolic factors in normal-weight individuals. Scientific Reports. 9(1). 3450–3450. 37 indexed citations

Cadore, Eduardo Lusa, Miriam González‐Izal, Jesús G. Pallarés, et al.. (2014). Muscle conduction velocity, strength, neural activity, and morphological changes after eccentric and concentric training. Scandinavian Journal of Medicine and Science in Sports. 24(5). e343–52. 83 indexed citations

Mero, Antti A., Juha J. Hulmi, J. Holviala, et al.. (2012). Resistance training induced increase in muscle fiber size in young and older men. European Journal of Applied Physiology. 113(3). 641–650. 58 indexed citations

Sedliak, Milan, et al.. (2011). Muscle strength, resting muscle tone and EMG activation in untrained men: interaction effect of time of day and test order-related confounding factors.. PubMed. 51(4). 560–70. 16 indexed citations

Taipale, Ritva S., Jussi Mikkola, Ari Nummela, et al.. (2010). Strength Training in Endurance Runners. International Journal of Sports Medicine. 31(7). 468–476. 74 indexed citations

Tanskanen, Minna, Arja Uusitalo, K. Häkkinen, et al.. (2009). Aerobic fitness, energy balance, and body mass index are associated with training load assessed by activity energy expenditure. Scandinavian Journal of Medicine and Science in Sports. 19(6). 871–878. 29 indexed citations

Izquierdo, Míkel, José A. L. Calbet, Miriam González‐Izal, et al.. (2009). Neuromuscular Fatigue after Resistance Training. International Journal of Sports Medicine. 30(8). 614–623. 60 indexed citations

Cristea, Alexander, Marko T. Korhonen, K. Häkkinen, et al.. (2008). Effects of combined strength and sprint training on regulation of muscle contraction at the whole‐muscle and single‐fibre levels in elite master sprinters. Acta Physiologica. 193(3). 275–289. 35 indexed citations

Tomás-Carús, Pablo, et al.. (2008). Eight months of physical training in warm water improves physical and mental health in women with fibromyalgia: A randomized controlled trial. Journal of Rehabilitation Medicine. 40(4). 248–252. 96 indexed citations

10.

Mikkola, Jussi, et al.. (2007). Concurrent Endurance and Explosive Type Strength Training Improves Neuromuscular and Anaerobic Characteristics in Young Distance Runners. International Journal of Sports Medicine. 28(7). 602–611. 93 indexed citations

11.

Linnamo, Vesa, Robert U. Newton, K. Häkkinen, et al.. (2000). Neuromuscular responses to explosive and heavy resistance loading. Journal of Electromyography and Kinesiology. 10(6). 417–424. 68 indexed citations

12.

Häkkinen, K., Markku Alén, Mauri Kallinen, Robert U. Newton, & William J. Kraemer. (2000). Neuromuscular adaptation during prolonged strength training, detraining and re-strength-training in middle-aged and elderly people. European Journal of Applied Physiology. 83(1). 51–62. 321 indexed citations

13.

Häkkinen, K., et al.. (1996). Bilateral and Unilateral Neuromuscular Function and Muscle Cross-Sectional Area in Middle-Aged and Elderly Men and Women. The Journals of Gerontology Series A. 51A(1). B21–B29. 105 indexed citations

14.

Häkkinen, K. & A. Pakarinen. (1994). Serum hormones and strength development during strength training in middle‐aged and elderly males and females. Acta Physiologica Scandinavica. 150(2). 211–219. 74 indexed citations

15.

Häkkinen, K. & Mauri Kallinen. (1994). Distribution of strength training volume into one or two daily sessions and neuromuscular adaptations in female athletes.. PubMed. 34(2). 117–24. 44 indexed citations

16.

Häkkinen, Arja, K. Häkkinen, & Pekka Hannonen. (1994). Effects of Strength Training on Neuromuscular Function and Disease Activity in Patients with Recent-onset Inflammatory Arthritis. Scandinavian Journal of Rheumatology. 23(5). 237–242. 71 indexed citations

17.

Perhonen, Merja, et al.. (1992). Strength training and neuromuscular function in elderly people with total knee endoprosthesis. Scandinavian Journal of Medicine and Science in Sports. 2(4). 234–243. 37 indexed citations

18.

Häkkinen, K., Mauri Kallinen, P. V. Komi, & Heikki Kauhanen. (1991). Neuromuscular adaptations during short-term "normal" and reduced training periods in strength athletes.. PubMed. 31(1). 35–42. 30 indexed citations

19.

Häkkinen, K., Kari L. Keskinen, Markku Alén, Paavo V. Komi, & Heikki Kauhanen. (1989). Serum hormone concentrations during prolonged training in elite endurance-trained and strength-trained athletes. European Journal of Applied Physiology. 59(3). 233–238. 44 indexed citations

20.

Häkkinen, K.. (1989). Maximal force explosive strength and speed in female volleyball and basketball players. 16(6). 291–304. 16 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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