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Active Release Technique (A.R.T) is a hands on soft tissue treatment for ligaments, tendons muscles and nerves. It is the leading soft tissue treatment utilized widely in the treatment of soft tissue injuries and conditions among professional athletes and the general population alike. In the instance of chronic neck pain, along with shoulder and subscapularis pain, ART involves guided pressure being applied to a shortened muscle in the top region of the neck or cervical spine. Most commonly, a healthcare professional will move the patient’s head in a direction that lengthens the muscle. During the motion the doctor maintains a strain on the muscle, as it slides out from beneath the doctor’s fingers.
The active release technique hurts a bit (many patients describe it as a”good hurt”), and it feels like a stretch that you need but can’t do yourself. When a muscle is tight the procedure operates by increasing the nervous system’s tolerance to extend the muscle. ART is utilized to take care of repetitive strain injuries, and it is often used in a variety of other medical practices. This is because it can offer quick results in treating ailments like: tennis elbow, frozen shoulder, shoulder rotator cuff injuries and plantar fasciitis. ART permits the physician to isolate treatment to each individual small muscle of the neck, and treat it through its full selection of movement. The neck muscles are layered, and also to isolate them during therapy demands careful attention.
People have a 70% likelihood of developing neck pain during their lives; thus, neck pain is an important issue affecting economic productivity in modern society. Neck pain is a work-related musculoskeletal disorder that can occur when a person works for a long time or at a high intensity. An increasing number of patients also visit hospitals complaining of pain occurring not only in the neck but also in the upper extremities and head as a result of sustained excessive tension. Although the issue of neck pain is becoming increasingly common and important, research into optimal treatmentslacking.
A common cause of neck pain is mechanical dysfunction, which causes abnormal joint movement, as abnormal cervical joint mobility inside the joint capsule can limit neck movement[4, 5]. Additionally, unbalanced soft tissue around the head and neck structure can place limits on the range of motion (ROM) of the head and cause neck pain. Therefore, many treatments are performed with the aim of restoring soft tissue function or mobility to the joints in patients with chronic neck pain. Joint mobilization (JM) and joint manipulation are the most widely used methods to increase mobility inside the joint capsule. These methods have been reported to increase the ROM and relieve pain[7, 8]. However, JM and joint manipulation performed at the end range of the ROM directly on the joints of the cervical vertebrae can cause tension in the patient’s neck muscles, because the cervical vertebrae are the most sensitive part of the spine and this tension protects the nerves and blood vessels.
The active release technique (ART) is a manual therapy for the recovery of soft tissue function that involves the removal of scar tissue, which can cause pain, stiffness, muscle weakness, and abnormal sensations including mechanical dysfunction in the muscles, myofascia, and soft tissue. The effectiveness of ART has been reported for carpal tunnel syndrome, Achilles tendonitis, and tennis elbow, all of which involve soft tissue near joints in the distal parts of the body. ART is also effective at reducing pain and increasing ROM in patients with a partial tear of the supraspinatus tendon. Most patients with chronic neck pain experience pain and movement limitation as a result of soft tissue impairment in the neck. Accordingly, more research on ART for the treatment of the soft tissues of the neck is warranted. However, no previous studies have assessed how ART can improve ROM in patients with neck pain.
Therefore, the purpose of this study was to compare the influence of ART and JM on the visual analog scale (VAS) score, pressure pain threshold (PPT), and neck ROM of patients with chronic neck pain, with the aim of elucidating additional information on their effects and identifying more efficient treatments that can be used in clinical settings.
The study subjects were 24 patients admitted to Hospital A in Gangnamgu who had a 3-month or longer history of neck pain and had mild disability based on the Neck Disability Index (NDI; 5–14 points). The sample size of this study was based on that of Hyun, while considering the subject dropout rate, and accounting for significance level (5%), power of the test (0.8), and the effect size (f=0.7). Patients with structural abnormalities involving bone fracture or nerves those who had undergone surgery for hernia or had high blood pressure, spondyloarthritis, lumbar spinal stenosis, or scoliosis were excluded from the study. The participating patients understood the study purpose and associated information and provided their written consent to participation. This study was conducted using a procedure ethically suitable for human research in accordance with the Declaration of Helsinki.
We used the VAS to evaluate the degree of neck pain. The VAS is a subjective scoring method for recording the degree of present pain from 0 (no pain) to 10 (the most severe pain ever experienced) on a 10-cm scale. The VAS is difficult to compare among patients because of the subjective nature of the pain, but its reproducibility has been recognized in individual patients (ICC=0.97).
The PPT measurement was performed by one investigator using an algometer. The right and left upper trapezius and sternocleidomastoideus (SCM) were pressed at a constant speed. The subject was asked to respond immediately when the pressure changed to pain, and the mechanical pressure was recorded. The mean value of two measurements was used; increasing PPT values indicate a higher-pressure pain threshold. An algometer is particularly useful for measuring the trigger point in myofacial pain syndrome, because it can determine the precise location of the source pain and quantify the pressure sensitivity of muscles (ICC=0.78–0.93)[16, 17].
Passive ROM was measured by fixing the subject’s shoulder so that it was not affected by the other parts of the trunk. Then, neck flexion, extension, right side bending, left side bending, right rotation, and left rotation were measured. The range of the angle was measured with a therapist passively assessing the patient’s pain-free neck-joint ROM.
The 24 subjects with chronic neck pain included in the study were randomly assigned to one of three groups following an equivalent control group pre-test/post-test design. For 3 weeks, the ART and JM groups received treatment twice per week for 20 minutes. After all the interventions were completed, the VAS score, PPT, and ROM were measured again. In the ART group, ART was used to treat the muscles demonstrating scar tissue, among the muscles involved in neck movement. After shortening based on fiber texture in the longitudinal direction, soft tissue mobilization was performed with active or passive stretching to lengthen the tissue that had been shortened.
JM was performed using Kaltenborn’s techniques of traction and gliding. In order to relieve pain with physiological movements including flexion, extension, side bending, and rotation, traction at Grade I or II was performed for 10 seconds. Additionally, in order to recover hypomobility, traction and gliding were performed at level 3 and maintained for 7 seconds. Both treatments included 2–3 seconds of rest and were repeated 10 times. Subjects in the control group did not receive any treatment for chronic neck pain.
SPSS 18.0 for Windows was used to analyze the results. In order to confirm the homogeneity of subjects’ general characteristics and dependent variables, descriptive statistics and the Kruskal-Wallis test were used. The Wilcoxon rank test was performed to assess the difference between pre- and post-treatment values in each group, and the Mann-Whitney U test was used to identify significant differences among the groups. The threshold for statistical significance was chosen as 0.05.
The extent of change in VAS score, PPT, and ROM was compared between patients with chronic neck pain who underwent ART or JM. Twenty-four patients with a 3-month or longer history of chronic neck pain participated in this study. The three groups demonstrated no significant differences in NDI scores, ages, heights, or weights (p>0.05) (Table 1).
The ART and JM groups both demonstrated significant improvements in VAS pain scores (p<0.05), but no significant change was observed in the control group (p>0.05). The PPT significantly increased (p<0.05), in every muscle measured in the ART group, and in all muscles other than the right upper trapezius in the JM group. Muscle PPT demonstrated no significant change in the control group (p>0.05) (Table 2).
After treatment, the ART and JM groups both demonstrated significant increases (p<0.05) in every neck joint ROM parameter, while no significant changes were observed in the control group (p>0.05) (Table 2).
The extent of change in the VAS pain score and PPT between pre- and post-treatment significantly differed across the three groups (p<0.05). The posthoc test indicated that changes in the VAS scores significantly differed between the ART and control groups, and between the JM and control groups (p<0.05), but not between the ART and JM groups (p>0.05). The changes in PPTs of the right upper trapezius and left SCM significantly differed to between the ART and JM groups (p<0.05); however no significant differences were observed in the other muscles (p>0.05). Between the JM and control groups, the change in right SCM PPT demonstrated a significant difference (p<0.05); however, no difference was observed in other muscles (p>0.05). Between the ART and control group, the change in PPT significantly differed for all the measured muscles (p<0.05). The changes in VAS score and PPT were greater in the ART group than in the JM group, but these differences were not statistically significant (Table 3).
The extent of change in ROM after the treatments significantly differed across the three groups (p<0.05). The posthoc test indicated that the change in ROM significantly differed between the ART and JM groups only in neck flexion (p<0.05), but not in other ROM measurements (p>0.05). There was no significant difference in neck flexion ROM between the JM and control groups (p>0.05), but all other ROM parameters significantly differed between these groups (p<0.05). The ART and control groups significantly differed in terms of the change in ROM for all the parameters measured (p<0.05). The change in ROM was greater in the ART group than in the JM group, but this difference was not reach statistically significant (Table 3).
Dr. Alex Jimenez’s Insight
The following study compared the use of the active release technique (A.R.T.) to the use of joint mobilization to determine the best method for treating chronic neck pain symptoms. As it will be properly described below, the research study concluded that ART and joint mobilizations are both effective as treatment for patients with chronic neck pain, however, the active release technique demonstrated a greater effectiveness for neck pain associated with soft tissue injury. A.R.T. is believed to be a better treatment option for chronic neck pain mainly because soft tissue injuries are believed to be the cause of painful symptoms in 87.5 percent of cases, where ART is performed directly on the area of damage.
Repetitive motions and the use of smart phones and tablets in abnormal head postures can stress the head, neck, and shoulder areas. Additionally, abnormal head posture can cause mechanical dysfunction of the cervical joint, which can lead to pain, fibrosis of soft tissue, adaptive shortening, loss of flexibility, and mechanical deformation reflecting the condition of hypomobility, where there is no movement inside the normal joint capsule[20, 21]. When mechanical dysfunction is present in a vertebra, manual therapy is typically performed, and it can be an effective method of relieving neck pain related to such dysfunction. JM is used to treat joints with hypomobility or progressive limitation of mobility, by identifying a cervical segment with abnormal mobility and irritating the sensory receptors that sense pain, thus eliciting effects on the muscle, which in turn stimulate the muscles to apply force in the appropriate direction.
After 3 weeks of JM, the VAS, ROM, and PPT values of muscles other than the right upper trapezius demonstrated significant improvements compared to their pre-test values. The PPT also increased in the right upper trapezius, but the difference was not statistically significant. The trapezius is particularly susceptible to damage by repetitive movements of the hand and arm while performing work such as using a computer. Most of the study participants were right-handed and thus performed more movement of the right upper extremity than the left, which may explain why the improvement of the right upper trapezius PPT was not reach statistically significant.
ART is a method for treating the soft tissues such as the tendon, nerve, and myofascia, and is performed for repetitive strain injury, acute injury, and functional fixation damage due to abnormal posture maintained over the long term. Furthermore, ART is an effective at resolving adhesion of scar tissue and the soft tissue that causes pain, spasm, muscle weakness, tingling, and other symptoms.
Robb et al. demonstrated immediate improvement of muscle PPT when ART was used to treat patients with adductor strain. Additionally, in a study by Tak et al., ART treatment for 3 weeks on the gluteus medius of a patient with low back pain for 3 weeks resulted in improvement of the patient’s VAS score and PPT. Although our target area differed from the studies of Tak et al. and Robb et al., significant improvement was observed in the VAS score, PPT, and ROM after using ART to treat the neck muscles in the present study. It is our opinion that these improvements in VAS score and PPT after treatment is the result of decreases in muscle tone after removing scar tissue adherent to soft tissue.
In a study by James involving 20 young men with no injury of the lower extremity, hamstring flexibility increased immediately after ART was applied. Similarly, in the present study, ROM significantly increased after ART was applied on the neck for 3 weeks. This finding indicates that scar tissue, which can limit the mobility of soft tissue, can be removed by ART and thus relieve limitations of movement.
Although no statistically significant difference was detected in many cases, the change in the VAS score, PPT, and ROM demonstrated a consistent trend toward being greater in the ART group than in the JM group. This greater effect may be related to the observation that soft tissue injury is the cause of pain in 87.5% of neck pain cases, and ART is performed directly on the injured soft tissue, whereas JM treats the limited area of the joint. This study compared the effect of treatment over a short period of 3 weeks, and thus, it remains unclear how long its effectiveness is maintained. Longerterm follow-up surveys are needed after the cessation of treatment. Additionally, it is difficult to generalize our findings, as the sample sizes were small. In order to reinforce these findings, more research is needed.
In conclusion, this study compared the VAS score, PPT, and ROM across 24 subjects with chronic neck pain receiving ART, JM, or no treatment. It revealed that ART and JM both positively affected the VAS score, PPT, and ROM, and that the two methods demonstrated few significant differences in their effects. Thus, ART and JM are both effective for the treatment of patients with chronic neck pain, but ART demonstrated a trend toward greater effectiveness for patients with neck pain involving soft tissue injury. Therefore, ART appears to be a better option for treating patients with chronic neck pain in the clinical setting. Follow-up research involving greater numbers and diversity of subjects with longer terms are needed to expand upon these findings.
The purpose of the article above is to present the effectiveness of the active release technique, or ART, towards the management and improvement of chronic neck pain in a clinical setting. Information referenced from the National Center for Biotechnology Information (NCBI). The scope of our information is limited to chiropractic as well as to spinal injuries and conditions. To discuss the subject matter, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
Curated by Dr. Alex Jimenez
Sciatica is medically referred to as a collection of symptoms, rather than a single injury and/or condition. Symptoms of sciatic nerve pain, or sciatica, can vary in frequency and intensity, however, it is most commonly described as a sudden, sharp (knife-like) or electrical pain that radiates from the low back down the buttocks, hips, thighs and legs into the foot. Other symptoms of sciatica may include, tingling or burning sensations, numbness and weakness along the length of the sciatic nerve. Sciatica most frequently affects individuals between the ages of 30 and 50 years. It may often develop as a result of the degeneration of the spine due to age, however, the compression and irritation of the sciatic nerve caused by a bulging or herniated disc, among other spinal health issues, may also cause sciatic nerve pain.
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