جستجوی مقالات مرتبط با کلیدواژه « myofascial trigger points » در نشریات گروه « پزشکی »

The purpose of this work was to explore cervical position sense and electromyographic (EMG) responses of cervical muscles during head repositioning movements in students with and without upper trapezius muscle trigger points.

Forty-six right-handed men and women subjects without upper extremity disorders participated in this study. The maximal voluntary contraction (MVC) was measured three time before the fatigue test. A force gauge was used to measure force while recording with a monitor. Measurement was initiated with a MVC force before and after fatigue pain and head positioning were measured. When the protocol was accomplished, the subjects showed signs of exhaustion; however, they were not subjectively evaluated for fatigue. As the protocol aimed at assessing muscle fatigue, a force level of 80% MVC was induced.

These findings support the argument that the precision of the neck position sense can be reduced by the fatigue of the neck muscle. Fatigue impaired balance in the trapezius muscles. After removing vision this resulted in an increased center of pressure excursions on a force platform. Motor control did not change significantly in this study.

Fatigue had a more significant effect on cervical kinematics in the healthy subjects, probably due to the fact that altered neck motor control in volunteers implied that these individuals were not completely able to make up for fatigue of the neck muscle. Significant pain and head positioning changes were identified following fatigue applied to the pre-determined myofascial trigger points, but the changes were insignificant in the sham control group.

Osteoarthritis is one of the most common rheumatological diseases and is also considered as one of the causes of myofascial trigger points (MtrPs). Dry needling (DN) is one of the methods used for the treatment of the MtrPs. The aim of the current study was to investigate the effects of DN on pain in participants with knee osteoarthritis (KOA).

In this before and after preliminary clinical trial study, patients with mild to moderate KOA were enrolled. In one session, after determining the location of trigger points in quadriceps and gastrocnemius muscles, the patients underwent DN. The pain was evaluated at baseline, by passing 4 days and 1 month from the intervention using the Visual Analog Scale (VAS).

Sixteen patients with a mean age of 56.5 (4.53) years old have completed the study and follow‑up period. According to the ANOVA analysis, VAS values indicated a significant decrease in pain score at the 4th and 1 month after the intervention compared to baseline (P < 0.001). There was no significant difference between VAS at the 4th day of intervention and also 1 month later of intervention (P = 0.087).

The application of one session DN can lead to improvement in pain intensity in participants with mild to moderate KOA.

Cervicogenic headache (CGH) is a secondary headache with a cervical source that radiates pain to the head or face. Accordingly, one reason of CGH is myofascial trigger points. The purpose of this study was to investigate the effect of one session dry needling (DN) of myofascial trigger points of the sternocleidomastoid (SCM) muscle in patients with CGH.

In this before‑and‑after clinical trial, 16 females aged 18–60 years with a clinical diagnosis of CGH were enrolled. All of the patients received one session DN into the myofascial trigger points of the SCM muscle. Headache index (HI), headache duration, headache frequency, and headache disability index (HDI) were assessed at 2 weeks before and 2 weeks after the intervention. This study was registered in Clinical Trials as IRCT20181109041599N1.

One session DN into myofascial trigger points of the SCM muscle showed a significant improvement in HI (P < 0.001). Duration and frequency of headache as well as HDI significantly reduced after intervention (P < 0.001).

One session DN into myofascial trigger points of the SCM muscle was effective on improvement of HI, headache duration, headache frequency, and HDI in patients with CGH.

The aim of the present study was to investigate the immediate effect of time (30 and 90 seconds) trigger point compression techniques in the latent trigger points of upper trapezius muscle. Methods and Materials: A total of 39 women, aged between 20-30 who were diagnosed with latent MTrPs in the upper trapezius muscle, participated in the present study. Participants were randomly assigned to 3 groups, 13 each, using block randomization

trigger point compression (30 sec), trigger point compression (90 sec), and control group. In all groups, the measurements were carried out before and after the intervention.

The duration of 30 and 90 sec trigger point compression techniques were observed to decrease the pain and increase the pain pressure threshold (P<0.001). Significant differences were found between the duration of 30 sec trigger point compression technique and control group in terms of pain magnitudes (P<0.001) and pain pressure threshold (P<0.01). Also, there were significant differences between the duration of 90 sec trigger point compression technique and control group regarding pain magnitudes and pain pressure threshold (P<0.001). Moreover, significant differences were observed between these 2 treatment groups in terms of pain magnitudes (P<0.05) and pain pressure threshold (P<0.001). The duration of 90 sec trigger point compression technique was observed to have more effects compared with that for duration of 30 sec.

The results of the present study indicated that each of the 2 treatments decreased pain and increased pain pressure threshold. The results introduce the duration of 90 sec trigger point compression technique as a more effective treatment compared with that of the duration of 30 sec for latent MTrPs.

Myofascial trigger points (MTrPs) of the upper trapezius muscle causes impairment of functional activity and reduces the quality of life. Several physical therapy interventions can be used to treat myofascial trigger points. Currently, dry needling (DN) is emerging as a physical therapy technique for use in treating MTrPs. The aim of this narrative review was to evaluate the effectiveness of dry needling in treating myofascial trigger points of the upper trapezius muscle. The PubMed database was searched for articles published through December, 2018. The main problem of most articles exists in the methods section; therefore, their results may be affected by bias. A standardized guideline for both the training and practice of using DN to treat MTrPs should be developed to minimize the risk of DN complications.

Physiotherapists have accepted the dry needling (DN) technique as an adequate treatment for myofascial trigger points (MTrPs). Considering that most similar studies have only focused on one muscle, the current study aimed at evaluating the influence of DN on patients with musculoskeletal pains caused by active MTrPs in shoulder girdle muscles.

This quasi-experimental study was achieved based on experiences and observations in clinical settings. Totally, 20 subjects were selected with pain in shoulders and/or upper limbs, as well as head and neck with 3 to 5 MTrPs in the shoulder girdle muscles. They were candidates for treatment with DN in 5 sessions every other day during 2 weeks. The subjects were evaluated by the visual analogue scale (VAS), pressure-pain threshold (PPT), and the disabilities of the arm, shoulder, and hand (DASH). The statistical analysis was done using the paired t test.

A significant difference was observed in VAS, DASH, and PPT results after the intervention compared with those values before the intervention. P≤0.05 was considered as the level of significance.

Considering the observed improvements in VAS, the PPT, and DASH scores, the DN can be used as an impressive therapeutic method for MTrPs in shoulder girdle muscles.