{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T13:04:26Z","timestamp":1791983066408,"version":"4.4.0"},"reference-count":32,"publisher":"Wiley","issue":"15","license":[{"start":{"date-parts":[[2010,7,14]],"date-time":"2010-07-14T00:00:00Z","timestamp":1279065600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Flanders Fund for Scientific Research","award":["project G0691.08"],"award-info":[{"award-number":["project G0691.08"]}]},{"name":"Research Council of Katholieke Universiteit Leuven, Belgium","award":["contract OT\/07\/074"],"award-info":[{"award-number":["contract OT\/07\/074"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Movement Disorders"],"published-print":{"date-parts":[[2010,11,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Background: Turning is the most important trigger for freezing of gait (FOG) in Parkinson's disease (PD), and dual\u2010tasking has been suggested to influence FOG as well. Objective: To understand the effects of dual tasking and turning on FOG. Methods: 14 Freezers and 14 non\u2010freezers matched for disease severity and 14 age\u2010matched controls were asked to turn 180\u00b0 and 360\u00b0 with and without a cognitive dual\u2010task during the off\u2010period of the medication cycle. Total number of steps, duration, cadence, freezing\u2010frequency, and secondary\u2010task performance were measured. Results: Seven freezers froze during the protocol. Freezing occurred in 37.5% of trials during 180\u00b0 turning compared to 0% during straight\u2010line walking (\n                    <jats:italic>X<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    = 10.44,\n                    <jats:italic>p<\/jats:italic>\n                    &lt; 0.01). The occurrence of FOG increased during 360\u00b0 when also a dual\u2010task was added (\n                    <jats:italic>X<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    = 4.23,\n                    <jats:italic>p<\/jats:italic>\n                    = 0.04). Freezers took significantly more steps and were slower than controls in all conditions. The presence of a dual\u2010task increased these differences. Cadence increased significantly for freezers during 360\u00b0 and 180\u00b0 compared to straight\u2010line walking. In contrast, cadence was decreased during turning in controls and non\u2010freezers. During straight\u2010line walking, only freezers made errors in the secondary task. Controls increased their error\u2010rate during 180\u00b0 turning, whereas freezers deteriorated their secondary task performance during 360\u00b0. Conclusions: 360\u00b0 turning in combination with a dual\u2010task is the most important trigger for freezing. During turning, non\u2010freezers and controls decreased their cadence whereas freezers increased it, which may be related to FOG. Freezers adopted a posture second strategy in contrast to non\u2010freezers when confronted with a dual task. \u00a9 2010 Movement Disorder Society\n                  <\/jats:p>","DOI":"10.1002\/mds.23327","type":"journal-article","created":{"date-parts":[[2010,7,14]],"date-time":"2010-07-14T17:25:45Z","timestamp":1279128345000},"page":"2563-2570","source":"Crossref","is-referenced-by-count":317,"title":["Freezing of gait in Parkinson's disease: The impact of dual\u2010tasking and turning"],"prefix":"10.1002","volume":"25","author":[{"given":"Joke","family":"Spildooren","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah","family":"Vercruysse","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaat","family":"Desloovere","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wim","family":"Vandenberghe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric","family":"Kerckhofs","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alice","family":"Nieuwboer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2010,11,10]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/mds.21927"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.42.2.333"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/mds.21458"},{"key":"e_1_2_7_5_2","first-page":"163","article-title":"Falls In Parkinson's disease. 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