en دقت تشخیصی آزمون برخاستن و راه رفتن زمان دار در بیماران مبتلا به پارکینسون دارای قفل شدن حین راه رفتن کاردرمانی Occupational Therapy پژوهشي Research <div style="text-align: justify;"><strong>Background: </strong>Freezing of gait (FOG) is a disabling clinical phenomenon in patients with Parkinson&#39;s disease (PD), which is characterised by short episodes of inability to step and affect about 38.2 % of these patients. Abrupt FOG may disturb the balance and, thus, it is considered as a common cause of falls in PD. This study was designed to evaluate the fall diagnostic accuracy of the Timed Up and Go Test (TUG), a reliable and valid clinical test to assess mobility and risk of falls, in patients with PD who had FOG.<br> <strong>Methods:</strong> In this cross-sectional study, 80 subjects with a diagnosis of idiopathic PD who had FOG by mean &plusmn; SD age of 63.63&plusmn;9.76 years and mean &plusmn; SD disease duration of 7.82&plusmn;5.76 years were enrolled by simple non-probability sampling method. They were divided into two faller and non-faller groups based on the history of fall during the past six months. Sensitivity, specificity, negative and positive likelihood ratios, and receiver operator characteristic curve was calculated for TUG.<br> <strong>Results:</strong> The TUG score indicated significant differences between faller PD patients who had FOG and non-faller PD patients who had FOG (p=0.003). The best cut-off point for discriminating faller and non-faller PD patients who had FOG was 11.85 seconds (sensitivity= 68.97% and specificity= 86%).<br> <strong>Conclusion:</strong> TUG demonstrated moderate sensitivity and specificity to fall status in patients with PD who had FOG, suggesting its use in conjunction with other tests for screening those who may need intervention for decreasing falls.</div> Movement disorders, Parkinson's disease, Accidental falls, Balance, Sensitivity and specificity 157 163 http://fdj.iums.ac.ir/browse.php?a_code=A-10-35-2&slc_lang=en&sid=1 Zakieh Sadat Saberi زکیه سادات صابری zssaberi@gmail.com 10031947532846001766 10031947532846001766 No گروه کاردرمانی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی ایران، تهران، ایران. Seyed Amir Hasan Habibi امیرحسن حبیبی habibi.sah@iums.ac.ir 10031947532846001767 10031947532846001767 No گروه نورولوژی، بیمارستان حضرت رسول اکرم، دانشگاه علوم پزشکی ایران، تهران، ایران. Saeed Behzadipour سعید بهزادی پور behzadipour@sharif.ir 10031947532846001768 10031947532846001768 No گروه مهندسی مکانیک، دانشگاه صنعتی شریف، تهران، ایران. Ghorban Taghizadeh قربان تقی زاده gh_taghizade@yahoo.com 10031947532846001769 10031947532846001769 Yes مرکز تحقیقات توانبخشی، دپارتمان کاردرمانی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی ایران، تهران، ایران.