{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T11:14:02Z","timestamp":1780658042738,"version":"3.54.1"},"reference-count":49,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T00:00:00Z","timestamp":1775692800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T00:00:00Z","timestamp":1775692800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J intellect Disabil Res"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Research has shown significant underdiagnoses in adults with intellectual disabilities, highlighting the need for objective health measurements to prevent overshadowing. Physical fitness, crucial for health and functioning, is consistently poor in this population, increasing the risk of adverse outcomes. Fitness tests are promising but to date lack specific reference values from large datasets for broader applicability. This study examines the feasibility of four physical fitness tests in two large European cohort studies, IDS\u2010TILDA in Ireland and the HA\u2010ID study in the Netherlands, to address barriers and improve inclusion in research and care.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Method<\/jats:title>\n                    <jats:p>This study used data from IDS\u2010TILDA (40+ years) and HA\u2010ID (60+ years) cohort studies. Static balance was measured by the capability of maintaining three stances; muscle strength was measured as grip strength; muscular endurance was measured with the Five\u2010Times Chair Stand; and cardiorespiratory fitness was measured with the Two\u2010Minute Step Test. Reasons for non\u2010compliance were documented. The feasibility of these tests and reasons for non\u2010successful performance were described for the total group and across participant characteristics.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The IDS\u2010TILDA sample was younger than the HA\u2010ID sample, with more participants being independent in mobility. All fitness tests showed moderate to good feasibility, except the Full\u2010Tandem stance in the IDS\u2010TILDA sample. Lower feasibility was found in adults with severe and profound intellectual disabilities, walking aids and wheelchair users. Key barriers for participation were physical limitations and difficulties understanding the task.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study showed overall moderate to good feasibility. Physical limitations and difficulties understanding the task were important barriers, emphasising the need for the person\u2010centred approach taken by both studies. Feasibility for including standardised physical fitness assessments, with a person\u2010centred approach, in large cohort studies is shown. Including physical fitness assessment is recommended to allow for comparability and combining of data for more knowledge on physical fitness in adults with intellectual disabilities.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jir.70103","type":"journal-article","created":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T01:49:37Z","timestamp":1775785777000},"page":"688-699","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Feasibility of Physical Fitness Measurements in Older Adults With Intellectual Disabilities Within Two Large Cohort Studies: The HA\u2010ID and IDS\u2010TILDA Study"],"prefix":"10.1111","volume":"70","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6630-8807","authenticated-orcid":false,"given":"Alyt","family":"Oppewal","sequence":"first","affiliation":[{"name":"Department of General Practice, Intellectual Disability Medicine Research, Erasmus MC University Medical Center Rotterdam  Rotterdam the Netherlands"},{"name":"Academic Collaborative Research Center Healthy Ageing and Intellectual Disabilities  Rotterdam the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2209-4859","authenticated-orcid":false,"given":"Louise","family":"Lynch","sequence":"additional","affiliation":[{"name":"Trinity Centre for Ageing and Intellectual Disability, School of Nursing and Midwifery Trinity College Dublin  Dublin Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3097-8048","authenticated-orcid":false,"given":"Eilish","family":"Burke","sequence":"additional","affiliation":[{"name":"Trinity Centre for Ageing and Intellectual Disability, School of Nursing and Midwifery Trinity College Dublin  Dublin Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,9]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.archger.2011.02.006"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dhjo.2020.100886"},{"key":"e_1_2_11_4_1","volume-title":"ACSM'S Guidelines for Exercise Testing and Prescription","author":"American College of Sports Medicine","year":"2025"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(12)60240-2"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ridd.2015.10.022"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1519\/JPT.0000000000000164"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1352\/2326-6988-8.2.124"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/jir.12756"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pmedr.2016.06.008"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen-2021-053499"},{"key":"e_1_2_11_12_1","unstructured":"Fess E. E. andC.Moran.1981. \u201cClinical Assessment Recommendations.\u201d Indianapolis USA American Society of Hand Therapists Monograph."},{"key":"e_1_2_11_13_1","first-page":"26","article-title":"Reliability of Four Simple, Quantitative Tests of Balance and Mobility in Healthy Elderly Females","volume":"10","author":"Franchignoni F.","year":"1998","journal-title":"Aging (Milano)"},{"key":"e_1_2_11_14_1","doi-asserted-by":"publisher","DOI":"10.1177\/0898264312438551"},{"key":"e_1_2_11_15_1","first-page":"1","article-title":"Anthropometric Reference Data for Children and Adults: United States, 2015\u20102018","volume":"36","author":"Fryar C. 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