<?xml version="1.0" encoding="utf-8"?>
<journal>
<title>Razi Journal of Medical Sciences</title>
<title_fa>مجله علوم پزشکی رازی</title_fa>
<short_title>RJMS</short_title>
<subject>Medical Sciences</subject>
<web_url>http://rjms.iums.ac.ir</web_url>
<journal_hbi_system_id>39</journal_hbi_system_id>
<journal_hbi_system_user>journal39</journal_hbi_system_user>
<journal_id_issn>2228-7043</journal_id_issn>
<journal_id_issn_online>2228-7051</journal_id_issn_online>
<journal_id_pii></journal_id_pii>
<journal_id_doi></journal_id_doi>
<journal_id_iranmedex></journal_id_iranmedex>
<journal_id_magiran></journal_id_magiran>
<journal_id_sid></journal_id_sid>
<journal_id_nlai></journal_id_nlai>
<journal_id_science></journal_id_science>
<language>en</language>
<pubdate>
	<type>jalali</type>
	<year>1392</year>
	<month>7</month>
	<day>1</day>
</pubdate>
<pubdate>
	<type>gregorian</type>
	<year>2013</year>
	<month>10</month>
	<day>1</day>
</pubdate>
<volume>20</volume>
<number>112</number>
<publish_type>online</publish_type>
<publish_edition>1</publish_edition>
<article_type>fulltext</article_type>
<articleset>
	<article>


	<language>fa</language>
	<article_id_doi></article_id_doi>
	<title_fa>بررسی تاثیر وضعیت‌های مطلوب و نامطلوب نشسته بر روی کارایی تست توجهی در کار با رایانه</title_fa>
	<title>Assessment of effect of awkward seating postures on attention test performance while working with computer</title>
	<subject_fa>فیزیوتراپی ورزشی</subject_fa>
	<subject>Sports Physiotherapy</subject>
	<content_type_fa>پژوهشي</content_type_fa>
	<content_type>Research</content_type>
	<abstract_fa>

&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal unicode-bidi: embed direction: rtl text-justify: kashida text-kashida: 0% mso-pagination: none&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;زمینه
و هدف&lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;: وضعیت های نامطلوب کاری عوارضی همچون به خطر انداختن سلامتی
و کاهش زمان کار و تولید کنندگی را در بر دارد. مطالعه حاضر با هدف بررسی تاثیر
کار در وضعیت نامطلوب بر روی کارایی در تست توجهی انجام شد.&lt;o:p /&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal unicode-bidi: embed direction: rtl text-justify: kashida text-kashida: 0% mso-pagination: none&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;روش
کار&lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;: لذا با دو نوع طراحی متفاوت ایستگاه کاری از افراد خواسته شد
تا یک کار ذهنی نسبتاً پیچیده را برای مدت تقریبی یک ساعت انجام دهند. وضعیت
قرارگیری ستون فقرات در&lt;font size=&quot;2&quot;&gt;&lt;font face=&quot;B Mitra&quot;&gt;&lt;span style=&quot;mso-spacerun: yes&quot;&gt; &lt;/span&gt;وضعیت نشسته&lt;span style=&quot;mso-spacerun: yes&quot;&gt; &lt;/span&gt;از طریق روش &lt;/font&gt;&lt;/font&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-family: &quot;B Mitra&quot; mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;RULA&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt; مورد ارزشیابی قرار گرفت. برای ایجاد خستگی ذهنی ار سوالات ساده
ریاضی، شامل اعمال اصلی استفاده شد. علاوه بر آن ارزیابی فردی از طریق پرسش نامه
برای ارزیابی احساس فردی از خستگی ذهنی و خستگی جسمی انجام شد.&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;font-family: &quot;B Mitra&quot; mso-bidi-language: FA mso-ascii-font-family: Calibri mso-hansi-font-family: Calibri&quot;&gt;&lt;o:p /&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal unicode-bidi: embed direction: rtl text-justify: kashida text-kashida: 0% mso-pagination: none&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;یافته‌ها:&lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 13pt mso-bidi-language: FA&quot;&gt; &lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;بین نمره &lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-family: &quot;B Mitra&quot; mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;RULA&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;
در دو گروه وضعیت مطلوب و وضعیت نامطلوب اختلاف معنی دار وجود داشت (001/0&lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-family: &quot;B Mitra&quot; mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;p&lt;&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;). این اختلاف در وضعیت نشسته باعث به وجود آمدن درک بیشتری از
خستگی هم در مقیاس فیزیکی (023/0= &lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-family: &quot;B Mitra&quot; mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;p&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;) و هم در مقیاس
ذهنی (002/0= &lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-family: &quot;B Mitra&quot; mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;p&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;) در بین افرادی شد که در وضعیت نامطلوب
قرار داشتند. نتایج نشان داد وضعیت نامطلوب کاری با زمان واکنش افراد رابطه معنی
دار ندارد (050/0= &lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-family: &quot;B Mitra&quot; mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;p&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;) اما می­تواند توجه انتخابی را تحت
تاثیر قرار دهد (028/0= &lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-family: &quot;B Mitra&quot; mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;p&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;). &lt;o:p /&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal unicode-bidi: embed direction: rtl text-justify: kashida text-kashida: 0% mso-pagination: none&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;نتیجه&lt;/span&gt;&lt;/b&gt;&lt;b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 9pt mso-bidi-font-size: 10.0pt&quot; dir=&quot;ltr&quot;&gt;‌&lt;/span&gt;&lt;/b&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;گیری&lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;font-family: &quot;B Mitra&quot; font-size: 10pt mso-ascii-font-family: &quot;Times New Roman&quot; mso-hansi-font-family: &quot;Times New Roman&quot; mso-ansi-font-size: 9.0pt&quot;&gt;:
این مطالعه نشان داد وضعیت های نامناسب کاری می­توانند منجر به نقص کارایی شناختی
شوند.&lt;o:p /&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;</abstract_fa>
	<abstract>

&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal text-justify: inter-ideograph&quot;&gt;&lt;b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt mso-bidi-language: FA&quot;&gt;Background: &lt;/span&gt;&lt;/b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt&quot;&gt;Undesirable
work situations (such as awkward postures) can result in health issues such as
musculoskeletal disorders in addition to reduced productivity and efficiency.
The main purpose of this study was to determine the effect of these awkward
postures on attention task performance.&lt;/span&gt;&lt;span style=&quot;font-size: 13pt mso-bidi-font-family: &quot;B Mitra&quot;&quot;&gt;&lt;o:p /&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal text-justify: inter-ideograph tab-stops: right 7.3pt center 265.9pt&quot;&gt;&lt;b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt&quot;&gt;Methods&lt;/span&gt;&lt;/b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt&quot;&gt;: Hence by
designing two different simulated work stations, subjects were asked to
complete a relatively complicated cognitive task on a 1 hour experimental
session. RULA analytical method was used to evaluate the working postures. A
series of mathematical tests was used as a fatigue manipulation tool. Moreover
a subjective assessment was conducted by questionnaire.&lt;span lang=&quot;AR-SA&quot; dir=&quot;rtl&quot;&gt;&lt;o:p /&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal text-justify: inter-ideograph tab-stops: right 7.3pt center 265.9pt&quot;&gt;&lt;b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt&quot;&gt;Results:&lt;/span&gt;&lt;/b&gt;&lt;span style=&quot;font-size: 12pt mso-bidi-font-family: &quot;B Mitra&quot; mso-ascii-font-family: Calibri mso-hansi-font-family: Calibri&quot;&gt;&lt;font face=&quot;Calibri&quot;&gt; &lt;/font&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt&quot;&gt;RULA score showed a significant
difference between groups (p&lt; 0.001). This difference showed that subjects
in awkward posture reported more mental (p= 0.002) and physical fatigue (p=
0.023) than the standard posture group. The results also showed that awkward
posture is related to impaired selective attention (p= 0.028) and a poor
difference in the simple reaction time (p=0.050) was observed between the
groups.&lt;o:p /&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;margin: 0in 0in 0pt text-align: justify line-height: normal text-justify: inter-ideograph tab-stops: right 7.3pt center 265.9pt&quot;&gt;&lt;b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt&quot;&gt;Conclusions: &lt;/span&gt;&lt;/b&gt;&lt;span style=&quot;font-family: &quot;Times New Roman&quot;,&quot;serif&quot; font-size: 12pt&quot;&gt;This study
supports the theory that physical workload can interfere with cognitive
performance in a concomitant mental activity.&lt;span lang=&quot;AR-SA&quot; dir=&quot;rtl&quot;&gt;&lt;o:p /&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;&lt;font face=&quot;Times New Roman&quot; size=&quot;3&quot;&gt; &lt;/font&gt;</abstract>
	<keyword_fa>بار شناختی، وضعیت نامطلوب، خستگی ذهنی.</keyword_fa>
	<keyword>Cognitive load, Awkward posture, Mental fatigue.</keyword>
	<start_page>36</start_page>
	<end_page>44</end_page>
	<web_url>http://rjms.iums.ac.ir/browse.php?a_code=A-10-1-1457&amp;slc_lang=fa&amp;sid=1</web_url>


<author_list>
	<author>
	<first_name>Hamid</first_name>
	<middle_name></middle_name>
	<last_name> Reza Mokhtarinia</last_name>
	<suffix></suffix>
	<first_name_fa> حمیدرضا</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa> مختاری نیا</last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code>3900319475328460024200</code>
	<orcid>3900319475328460024200</orcid>
	<coreauthor>Yes
</coreauthor>
	<affiliation>University of Social Welfare Rehabilitation Science</affiliation>
	<affiliation_fa>دانشگاه علوم بهزیستی و توانبخشی، تهران</affiliation_fa>
	 </author>


	<author>
	<first_name>Hamid </first_name>
	<middle_name></middle_name>
	<last_name>Shiri</last_name>
	<suffix></suffix>
	<first_name_fa>حمید</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa> شیری</last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code>3900319475328460024201</code>
	<orcid>3900319475328460024201</orcid>
	<coreauthor>No</coreauthor>
	<affiliation>University of Social Welfare Rehabilitation Science</affiliation>
	<affiliation_fa>دانشگاه علوم بهزیستی و توانبخشی، تهران</affiliation_fa>
	 </author>


	<author>
	<first_name>Mahnaz</first_name>
	<middle_name></middle_name>
	<last_name> Saremi</last_name>
	<suffix></suffix>
	<first_name_fa>مهناز</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa> صارمی</last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code>3900319475328460024202</code>
	<orcid>3900319475328460024202</orcid>
	<coreauthor>No</coreauthor>
	<affiliation>Shahid Beheshti University of Medical Sciences</affiliation>
	<affiliation_fa>دانشگاه علوم پزشکی شهید بهشتی</affiliation_fa>
	 </author>


	<author>
	<first_name>Porya</first_name>
	<middle_name></middle_name>
	<last_name> Reza-Soltani</last_name>
	<suffix></suffix>
	<first_name_fa>پوریا</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa> رضا سلطانی</last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code>3900319475328460024203</code>
	<orcid>3900319475328460024203</orcid>
	<coreauthor>No</coreauthor>
	<affiliation>University of Social Welfare Rehabilitation Science</affiliation>
	<affiliation_fa>دانشگاه علوم بهزیستی و توانبخشی، تهران</affiliation_fa>
	 </author>


	<author>
	<first_name>Ali Asghar</first_name>
	<middle_name></middle_name>
	<last_name> Dadkhah</last_name>
	<suffix></suffix>
	<first_name_fa>علی اصغر</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa> دادخواه</last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code>3900319475328460024204</code>
	<orcid>3900319475328460024204</orcid>
	<coreauthor>No</coreauthor>
	<affiliation>University of Social Welfare Rehabilitation Science</affiliation>
	<affiliation_fa>دانشگاه علوم بهزیستی و توانبخشی، تهران</affiliation_fa>
	 </author>


</author_list>


	</article>
</articleset>
</journal>
