L. Schaap

7.7k citations

89 papers · 4.5k · 2 hit papers · h-index 31

Impact in

Geriatrics and Gerontology top 0.5%
- Frailty in Older Adults
Physiology top 0.5%
- Nutrition and Health in Aging
- Body Composition Measurement Techniques
- Adipose Tissue and Metabolism

Papers in

Physiology 22
- Nutrition and Health in Aging 19
- Body Composition Measurement Techniques 6
Rheumatology 9
- Osteoarthritis Treatment and Mechanisms 8

Co-authors: Marjolein Visser (29 shared papers)Saskia M.F. Pluijm (5 shared papers)Dorly J. H. Deeg (16 shared papers)Annemarie Koster (3 shared papers)Natasja M. van Schoor (27 shared papers)Hanneke A. H. Wijnhoven (13 shared papers)Paul Lips (9 shared papers)Anne B. Newman (3 shared papers)
Journals: Clinical Endocrinology (4 papers)Health & Place (3 papers)Aging Clinical and Experimental Research (3 papers)BMC Public Health (3 papers)BMC Musculoskeletal Disorders (3 papers)
Partner nations: Netherlands United Kingdom South Africa

In The Last Decade

L. Schaap

82 papers receiving 4.4k citations

L. Schaap's Hit Papers

align trajectories log scale

Higher Inflammatory Marker Levels in Older Persons: Associations With 5-Year Change in Muscle Mass and Muscle Strength 2009 · 561 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2009 The Journals of Gerontology Series A
2006 The American Journal of Medicine

Peers

Countries citing papers authored by L. Schaap

Since Specialization

Citations

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

Fields of papers citing papers by L. Schaap

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside L. Schaap, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with L. Schaap Line = papers co-authored together L. Schaap links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 89 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Inflammatory Markers and Loss of Muscle Mass (Sarcopenia) and Strength The American Journal of Medicine ·L. Schaap, Saskia M.F. Pluijm, Dorly J. H. Deeg, Marjolein Visser Hit paper breakdown →	2006	841
2	Higher Inflammatory Marker Levels in Older Persons: Associations With 5-Year Change in Muscle Mass and Muscle Strength The Journals of Gerontology Series A ·L. Schaap, Saskia M.F. Pluijm, D.J.H. Deeg, T. B. Harris, Stephen B. Kritchevsky, Anne B. Newman, Lisa H. Colbert, M. Pahor, S. M. Rubin, Frances A. Tylavsky, Marjolein Visser, (unknown) Hit paper breakdown →	2009	561
3	Adiposity, Muscle Mass, and Muscle Strength in Relation to Functional Decline in Older Persons Epidemiologic Reviews ·L. Schaap, Annemarie Koster, Marjolein Visser	2012	337
4	Consequences of Sarcopenia Clinics in Geriatric Medicine ·Marjolein Visser, L. Schaap	2011	242
5	Inflammation and Race and Gender Differences in Computerized Tomography‐measured Adipose Depots Obesity ·Leigh Beasley, Annemarie Koster, Anne B. Newman, M K Javaid, Luigi Ferrucci, Stephen B. Kritchevsky, Lewis H. Kuller, Marco Pahor, L. Schaap, Marjolein Visser, Susan M. Rubin, Bret H. Goodpaster, Tamara B. Harris, (unknown)	2009	205
6	High Long-Term Cortisol Levels, Measured in Scalp Hair, Are Associated With a History of Cardiovascular Disease The Journal of Clinical Endocrinology & Metabolism ·Laura Manenschijn, L. Schaap, Natasja M. van Schoor, Suzan van der Pas, Geeske Peeters, Paul Lips, Jan W. Koper, Elisabeth F. C. van Rossum	2013	175
7	Self-Reported Impact of the COVID-19 Pandemic on Nutrition and Physical Activity Behaviour in Dutch Older Adults Living Independently Nutrients ·Marjolein Visser, L. Schaap, Hanneke A. H. Wijnhoven	2020	144
8	Determinants of protein–energy malnutrition in community-dwelling older adults: A systematic review of observational studies Ageing Research Reviews ·Rachel van der Pols-Vijlbrief, Hanneke A. H. Wijnhoven, L. Schaap, Caroline B. Terwee, Marjolein Visser	2014	143
9	The association of sex hormone levels with poor mobility, low muscle strength and incidence of falls among older men and women Clinical Endocrinology ·L. Schaap, Saskia M.F. Pluijm, (unknown), Natasja M. van Schoor, Marjolein Visser, Louis Gooren, Paul Lips	2005	138
10	Osteoarthritis and frailty in elderly individuals across six European countries: results from the European Project on OSteoArthritis (EPOSA) BMC Musculoskeletal Disorders ·María Victoria Castell, Suzan van der Pas, À. Otero, Paola Siviero, Elaine Dennison, Michael Denkinger, Nancy L. Pedersen, Mercedes Sánchez-Martínez, Rocío Queipó, Natasja M. van Schoor, Sabina Zambon, Mark H. Edwards, Richard Peter, L. Schaap, Dorly J. H. Deeg	2015	129
11	The association between diabetes and dermal microvascular dysfunction non-invasively assessed by laser Doppler with local thermal hyperemia: a systematic review with meta-analysis Cardiovascular Diabetology ·Dagmar Fuchs, Pepijn P. Dupon, L. Schaap, Richard Draijer	2017	97
12	Biomechanical comparison of hard and soft hip protectors, and the influence of soft tissue Bone ·Natasja M. van Schoor, Albert J. van der Veen, L. Schaap, Theo H. Smit, Paul Lips	2006	73
13	Body weight and body composition in old age and their relationship with frailty Current Opinion in Clinical Nutrition & Metabolic Care ·Ilse Reinders, Marjolein Visser, L. Schaap	2016	71
14	Diagnostic accuracy of self-reported arthritis in the general adult population is acceptable Journal of Clinical Epidemiology ·Geeske Peeters, Mohamad Alshurafa, L. Schaap, Henrica C. W. de Vet	2014	70
15	Role of Osteoarthritis, Comorbidity, and Pain in Determining Functional Limitations in Older Populations: European Project on Osteoarthritis Arthritis Care & Research ·Sabina Zambon, Paola Siviero, Michael Denkinger, Federica Limongi, María Victoria Castell, Suzan van der Pas, À. Otero, Mark H. Edwards, Richard Peter, Nancy L. Pedersen, Mercedes Sánchez-Martínez, Elaine Dennison, Antonella Gesmundo, L. Schaap, Dorly J. H. Deeg, Natasja M. van Schoor, Stefania Maggi	2015	67
16	Low free testosterone levels are associated with prevalence and incidence of depressive symptoms in older men Clinical Endocrinology ·Devina Joshi, Natasja M. van Schoor, Willem de Ronde, L. Schaap, Hannie C. Comijs, Aartjan T.F. Beekman, Paul Lips	2009	64
17	The relationship between serum IGF-1, handgrip strength, physical performance and falls in elderly men and women European Journal of Endocrinology ·I. Caroline van Nieuwpoort, Mariska Vlot, L. Schaap, Paul Lips, Marjolein Drent	2018	57
18	Relationships between physical performance and knee and hip osteoarthritis: findings from the European Project on Osteoarthritis (EPOSA) Age and Ageing ·Mark H. Edwards, Suzan van der Pas, Michael Denkinger, Camille Parsons, Anthony James, L. Schaap, Sabina Zambon, M.V. Castell, Florian Herbolsheimer, Hans Nåsell, Mercedes Sánchez-Martínez, À. Otero, Thorsten Nikolaus, Natasja M. van Schoor, Nancy L. Pedersen, Stefania Maggi, Dorly J. H. Deeg, Cyrus Cooper, Elaine Dennison	2014	56
19	Physical Activity Patterns Among Older Adults With and Without Knee Osteoarthritis in Six European Countries Arthritis Care & Research ·Florian Herbolsheimer, L. Schaap, Mark H. Edwards, Stefania Maggi, À. Otero, Erik J. Timmermans, Michael Denkinger, Suzan van der Pas, Joost Dekker, Cyrus Cooper, Elaine Dennison, Natasja M. van Schoor, Richard Peter, (unknown)	2015	54
20	Low testosterone levels and decline in physical performance and muscle strength in older men: findings from two prospective cohort studies Clinical Endocrinology ·L. Schaap, Saskia M.F. Pluijm, D.J.H. Deeg, Brenda W.J.H. Penninx, Barbara J. Nicklas, Paul Lips, Tamara B. Harris, Anne B. Newman, Steve Kritchevsky, Jane A. Cauley, Bret H. Goodpaster, Frances A. Tylavsky, Kristine Yaffe, Marjolein Visser, (unknown)	2007	54

About L. Schaap

L. Schaap is a scholar working on Physiology, Rheumatology, Geriatrics and Gerontology, Health and Psychiatry and Mental health, having authored 89 papers that have together received 4.5k indexed citations. Recurring topics across this work include Nutrition and Health in Aging (19 papers), Osteoarthritis Treatment and Mechanisms (8 papers), Frailty in Older Adults (7 papers), Body Composition Measurement Techniques (6 papers), Health disparities and outcomes (6 papers), Urban Transport and Accessibility (5 papers), Dutch Social and Cultural Studies (4 papers) and Taxation and Legal Issues (3 papers). The work is most often cited by research in Geriatrics and Gerontology (375 citations), Physiology (1.9k citations), Behavioral Neuroscience (124 citations), Rehabilitation (182 citations) and Physical Therapy, Sports Therapy and Rehabilitation (125 citations). L. Schaap has collaborated with scholars based in Netherlands, United Kingdom and South Africa. Frequent co-authors include Marjolein Visser, Saskia M.F. Pluijm, Dorly J. H. Deeg, Annemarie Koster, Natasja M. van Schoor, Hanneke A. H. Wijnhoven, Paul Lips, Anne B. Newman, Stephen B. Kritchevsky and D.J.H. Deeg. Their work appears in journals such as Clinical Endocrinology, Health & Place, Aging Clinical and Experimental Research, BMC Public Health and BMC Musculoskeletal Disorders.

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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L. Schaap

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L. Schaap

L. Schaap's Hit Papers

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All Works

About L. Schaap

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