Katja Waller

1.7k total citations · 2 hit papers
34 papers, 931 citations indexed

About

Katja Waller is a scholar working on Physiology, Public Health, Environmental and Occupational Health and Applied Psychology. According to data from OpenAlex, Katja Waller has authored 34 papers receiving a total of 931 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Physiology, 21 papers in Public Health, Environmental and Occupational Health and 6 papers in Applied Psychology. Recurrent topics in Katja Waller's work include Physical Activity and Health (21 papers), Obesity, Physical Activity, Diet (18 papers) and Behavioral Health and Interventions (6 papers). Katja Waller is often cited by papers focused on Physical Activity and Health (21 papers), Obesity, Physical Activity, Diet (18 papers) and Behavioral Health and Interventions (6 papers). Katja Waller collaborates with scholars based in Finland, United States and Denmark. Katja Waller's co-authors include Urho M. Kujala, Jaakko Kaprio, Paula Iso‐Markku, Eero Vuoksimaa, Keegan Knittle, Juho Polet, Karri Silventoinen, Sari Aaltonen, Birgitte Fagerlund and Valentin Becker and has published in prestigious journals such as Scientific Reports, Neuroscience & Biobehavioral Reviews and Medicine & Science in Sports & Exercise.

In The Last Decade

Katja Waller

29 papers receiving 909 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.

Physical activity as a protective factor for dementia and Alzheimer’s disease: systematic review, meta-analysis and quality assessment of cohort and case–control studies

2022 184 citations Paula Iso‐Markku, Urho M. Kujala et al. profile →
Physical Activity and Cognitive Decline Among Older Adults

2024 62 citations Paula Iso‐Markku, Sari Aaltonen et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Katja Waller Finland	17	435	304	135	95	88	34	931
Zhaowei Kong Macao	25	640 1.5×	185 0.6×	130 1.0×	21 0.2×	94 1.1×	87	1.8k
Lisa M. Nackers United States	15	331 0.8×	340 1.1×	77 0.6×	20 0.2×	71 0.8×	21	1.4k
Debora Valecchi Italy	6	340 0.8×	214 0.7×	345 2.6×	135 1.4×	58 0.7×	10	935
Duccio Bacci Italy	4	318 0.7×	193 0.6×	338 2.5×	134 1.4×	58 0.7×	6	877
Sara Kaffashian France	11	257 0.6×	176 0.6×	242 1.8×	49 0.5×	33 0.4×	12	791
John Öhrvik Sweden	15	105 0.2×	209 0.7×	120 0.9×	23 0.2×	98 1.1×	21	969
Minghui Quan China	18	393 0.9×	306 1.0×	179 1.3×	15 0.2×	44 0.5×	42	1.2k
Samuel J. Ridout United States	16	374 0.9×	71 0.2×	91 0.7×	28 0.3×	25 0.3×	34	1.2k
Tuija M. Mikkola Finland	19	219 0.5×	118 0.4×	51 0.4×	182 1.9×	76 0.9×	60	981
Margaret V. Savage United States	14	187 0.4×	67 0.2×	98 0.7×	94 1.0×	124 1.4×	18	978

Countries citing papers authored by Katja Waller

Since Specialization

Citations

This map shows the geographic impact of Katja Waller'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 Katja Waller with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Katja Waller more than expected).

Fields of papers citing papers by Katja Waller

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Katja Waller. 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 Katja Waller. The network helps show where Katja Waller may publish in the future.

Co-authorship network of co-authors of Katja Waller

This figure shows the co-authorship network connecting the top 25 collaborators of Katja Waller. A scholar is included among the top collaborators of Katja Waller 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 Katja Waller. Katja Waller is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Waller, Katja, et al.. (2025). Genetic Liability to Higher Muscle Strength Associates With a Lower Risk of Cardiovascular Disease Mortality in Men Irrespective of Leisure‐Time Physical Activity in Adulthood: A Longitudinal Cohort Study. Journal of the American Heart Association. 14(9). e036941–e036941.

Leppänen, Marja H., Katja Waller, Bert Bond, et al.. (2025). Associations of Physical Fitness During Childhood with Arterial Structure and Stiffness in Adolescence: An 8-Year Follow-up Study. Sports Medicine - Open. 11(1). 48–48.

Waller, Katja, et al.. (2024). Genetic Liability to Cardiovascular Disease, Physical Activity, and Mortality: Findings from the Finnish Twin Cohort. Medicine & Science in Sports & Exercise. 56(10). 1954–1963. 2 indexed citations

Parkkari, Jari, Jaakko Kaprio, Henri Vähä‐Ypyä, et al.. (2024). Association Between Accelerometer-Measured Physical Activity and Mobility Limitations in Twins. Journal of Aging and Physical Activity. 33(2). 192–200.

Föhr, Tiina, Katja Waller, Anne Viljanen, et al.. (2023). Mortality Associations With DNA Methylation-Based Biological Aging and Physical Functioning Measures Across a 20-Year Follow-up Period. The Journals of Gerontology Series A. 78(8). 1489–1496. 6 indexed citations

Föhr, Tiina, Katja Waller, Anne Viljanen, et al.. (2021). Does the epigenetic clock GrimAge predict mortality independent of genetic influences: an 18 year follow-up study in older female twin pairs. Clinical Epigenetics. 13(1). 128–128. 27 indexed citations

Schumann, Moritz, Ziyuan Chen, Xiuqiang Wang, et al.. (2021). Maximal isometric strength indices are associated with the oxygen cost of walking and running in recreationally active men and women. Research in Sports Medicine. 30(5). 540–553. 1 indexed citations

Aaltonen, Sari, Katja Waller, Henri Vähä‐Ypyä, et al.. (2020). Motives for physical activity in older men and women: A twin study using accelerometer‐measured physical activity. Scandinavian Journal of Medicine and Science in Sports. 30(8). 1409–1422. 9 indexed citations

Iso‐Markku, Paula, et al.. (2020). Twin studies on the association of physical activity with cognitive and cerebral outcomes. Neuroscience & Biobehavioral Reviews. 114. 1–11. 3 indexed citations

10.

Kujala, Urho M., Henri Vähä‐Ypyä, Katja Waller, et al.. (2019). Chronic diseases and objectively monitored physical activity profile among aged individuals – a cross-sectional twin cohort study. Annals of Medicine. 51(1). 78–87. 24 indexed citations

11.

Waller, Katja, Henri Vähä‐Ypyä, Noora Lindgrén, et al.. (2018). Self-reported Fitness and Objectively Measured Physical Activity Profile Among Older Adults: A Twin Study. The Journals of Gerontology Series A. 74(12). 1965–1972. 10 indexed citations

12.

Waller, Katja, Jaakko Kaprio, Tellervo Korhonen, Annamari Tuulio‐Henriksson, & Urho M. Kujala. (2016). Persistent leisure-time physical activity in adulthood and use of antidepressants: A follow-up study among twins. Journal of Affective Disorders. 200. 172–177. 11 indexed citations

13.

Jennum, Poul, Erik Lykke Mortensen, Steen Gammeltoft, et al.. (2016). Melatonin and cortisol profiles in late midlife and their association with age-related changes in cognition. Nature and Science of Sleep. 8. 47–47. 32 indexed citations

14.

Karvinen, Sira, Katja Waller, Mika Silvennoinen, et al.. (2015). Physical activity in adulthood: genes and mortality. Scientific Reports. 5(1). 18259–18259. 51 indexed citations

15.

Waller, Katja, Jaakko Kaprio, & Urho M. Kujala. (2014). Dyspnea and All-Cause Mortality. Medicine & Science in Sports & Exercise. 46(8). 1538–1545. 6 indexed citations

16.

Waller, Katja. (2011). Leisure-time physical activity, weight gain and health : a prospective follow-up in twins. Jyväskylä University Digital Archive (University of Jyväskylä).

17.

Waller, Katja, Urho M. Kujala, Jaakko Kaprio, Markku Koskenvuo, & Taina Rantanen. (2010). Effect of Physical Activity on Health in Twins. Medicine & Science in Sports & Exercise. 42(4). 658–664. 10 indexed citations

18.

Waller, Katja, Jaakko Kaprio, Mikko Lehtovirta, et al.. (2010). Leisure-time physical activity and type 2 diabetes during a 28 year follow-up in twins. Diabetologia. 53(12). 2531–2537. 43 indexed citations

19.

Leskinen, Tuija, Katja Waller, Sari Aaltonen, et al.. (2009). Effects of 32-Year Leisure Time Physical Activity Discordance in Twin Pairs on Health (TWINACTIVE Study): Aims, Design and Results for Physical Fitness. Twin Research and Human Genetics. 12(1). 108–117. 40 indexed citations

20.

Becker, Valentin, Monther Bajbouj, Katja Waller, Roland M. Schmid, & Alexander Meining. (2007). Clinical trial: persistent gastro‐oesophageal reflux symptoms despite standard therapy with proton pump inhibitors – a follow‐up study of intraluminal‐impedance guided therapy. Alimentary Pharmacology & Therapeutics. 26(10). 1355–1360. 62 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.

Explore authors with similar magnitude of impact