Medical Journal of the Islamic Republic Of Iran
مجله پزشکی جمهوری اسلامی ایران
Med J Islam Repub Iran
Medical Sciences
http://mjiri.iums.ac.ir
2
journal2
1016-1430
2251-6840
8
10.18869/mjiri
14
8888
13
en
jalali
1393
10
1
gregorian
2015
1
1
29
1
online
1
fulltext
en
The effects of arm movement on reaction time in patients with latent and active upper trapezius myofascial trigger point
Physical Therapy
Physical Therapy
Original Research
Original Research
<p dir="ltr" style="text-align: justify"><strong>Background: </strong>Myofascial pain syndrome is a significant source of mechanical pain. The aim of this study was to investigate the effects of arm movement on reaction time in females with latent and active upper trapezius myofascial trigger point.</p>
<p dir="ltr" style="text-align: justify"><strong>Methods</strong>: In this interventional study, a convenience sample of fifteen women with one active MTP, fifteen women with one latent MTP in the upper trapezius, and fifteen normal healthy women were participated. Participants were asked to stand for 10 seconds in an erect standing position. Muscle reaction times were recorded including anterior deltoid (AD), cervical paraspinal (CP) lumbar paraspinal (LP), both of upper trapezius (UT), sternocleidomastoid (SCM) and medial head of gastrocnemius(GcM). Participants were asked to flex their arms in response to a sound stimulus preceded by a warning sound stimulus. Data were analyzed using one-way ANOVA Test.</p>
<p dir="ltr" style="text-align: justify"><strong>Results</strong>: There was significant differences in motor time and reaction time between active and control groups (p< 0.05) except for GcM. There was no significant difference in motor time between active and passive groups except for UT without MTP and SCM (p< 0.05). Also, there were no significant differences in motor times between latent MTP and control groups. Furthermore, there was no significant difference in premotor times between the three groups.</p>
<p dir="ltr" style="text-align: justify"><strong>Conclusion</strong>: The present study shows that patients with active MTP need more time to react to stimulus, but patients with latent MTP are similar to healthy subjects in the reaction time. Patients with active MTP had less compatibility with environmental stimulations, and they responded to a specific stimulation with variability in Surface Electromyography (SEMG).</p>
<p></p>
Myofascial trigger point, Surface Electromyography (SEMG), Reaction Time.
1159
1168
http://mjiri.iums.ac.ir/browse.php?a_code=A-10-1-924&slc_lang=en&sid=1
Marzieh
Yassin
m.yassin.pt@gmail.com
200319475328460019506
200319475328460019506
No
Physical Therapy Department, Rehabilitation Faculty, Tehran University of Medical Sciences, Tehran, Iran.
Saeed
Talebian
Talebian@sina.tums.ac.ir
200319475328460019507
200319475328460019507
Yes
Physical Therapy Department, Rehabilitation Faculty, Tehran University of Medical Sciences, Tehran, Iran.
Ismail
Ebrahimi Takamjani
Ebrahimi.pt@gmail.com
200319475328460019508
200319475328460019508
No
Physical Therapy Department, Rehabilitation Faculty, Iran University of Medical Sciences, Tehran, Iran.
Nader
Maroufi
Maroufi.n@iums.ac.ir
200319475328460019509
200319475328460019509
No
Physical Therapy Department, Rehabilitation Faculty, Iran University of Medical Sciences, Tehran, Iran.
Amir
Ahmadi
Ahmadi.a@iums.ac.ir
200319475328460019510
200319475328460019510
No
Physical Therapy Department, Rehabilitation Faculty, Iran University of Medical Sciences, Tehran, Iran.
Javad
Sarrafzadeh
Sarrafzadeh.j@iums.ac.ir
200319475328460019511
200319475328460019511
No
Physical Therapy Department, Rehabilitation Faculty, Iran University of Medical Sciences, Tehran, Iran.
Anita
Emrani
Anita.emrani@gmail.com
200319475328460019512
200319475328460019512
No
Physical Therapy Department, Rehabilitation Faculty, Iran University of Medical Sciences, Tehran, Iran.