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ASSESSING THE IMPACT OF POSITIONAL RELEASE TECHNIQUE AND MUSCLE ENERGY TECHNIQUE ON LOW BACK PAIN-A RANDOMIZED CONTROLLED TRIAL |
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Received: Thurs, Aug 25, 2022 Accepted: Mon, June 26, 2023 Published: Thurs, July 06, 2023

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DOI: 10.36283/pjr.zu.12.2/007

ORIGINAL ARTICLE Pakistan Journal of Rehabilitation

Volume 12(Issue 2), 2023 | Page No.

ASSESSING THE IMPACT OF POSITIONAL RELEASE TECHNIQUE AND MUSCLE ENERGY TECHNIQUE ON LOW BACK PAIN-A RANDOMIZED CONTROLLED TRIAL

Fizza Memoni, Shujaat Hussain Memonii

Correspondence

Fizza Memoni




















The Ziauddin University is on the list of I4OA, I4OC, and JISC.


This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0).


Conflict of Interest: The author (s) have no conflict of interest regarding any of the activity perform by PJR.

Keywords: Exercise, muscle energy technique, manual therapy, low back pain, physical therapy modalities, positional release technique.

ABSTRACT


Aims of Study: The purpose of this study is to ascertain the impact of positional release technique and muscular energy technique on low back pain.

Methodology: It was a single blinded randomized controlled trial. Participants were enrolled using envelop method of simple random sampling technique. A total n=30 clinically diagnosed LBP patients with between 26 to 40 y/o were recruited and randomly divided into two groups. Group-A MET (n=15) patients receiving muscle energy technique and Group-B PRT (n=15) patients receiving Positional Release Technique for two weeks.

Results: Between groups analysis was performed using independent t test as the data was normally distributed. The results revealed statically significant results in both the groups. However, group A show more significant results with mean value of 2.0±0.53, 10.73±1.79, and 2.80±0.14 for NPRS, ODI, and Modified Schober’s Test Score respectively as shown in table 3.

Limitations and Future Implications: The study may have had a limited number of participants, which could affect the generalizability of the results. Secondly, the study might have focused on short-term outcomes, assessing the immediate effects of the interventions.

Originality: The study has used and compared new technique and have identified the efficacy between the two physical therapy intervention based study.

Conclusions: According to the findings of this study, both therapy options are successful in treating low back pain. The effectiveness of the patients in the muscle energy technique group, however, showed a substantial difference.


Introduction

According to the Global Burden of Disease, low back pain (LBP) is defined as pain in the area from the lower border of the 12th ribs to the lower gluteal folds, with or without pain referred to one or both lower limbs that lasts for at least one day1. It is a major public health issue, with approximately 577.0 million people worldwide, or 7.5% of the total population, projected to experience LBP at any given time in 20172. Moreover, studies have shown that LBP has a lifetime prevalence of 70-80% by the age of 20, and the new onset rates are around 20% over a 1-2 year period3. Despite this, 85-95% of patients who visit primary care doctors do not have a clear-cut patho-anatomical cause for their pain.

Although most patients do not have a specific diagnosis, there are some underlying causes of LBP that need to be ruled out. For instance, estimates suggest that 0.01% of people who visit their primary care physician for LBP have infections, 0.0-0.7% have malignancies, 5% have inflammatory spondyloarthropathies, and 0-7.4% have osteoporotic vertebral fractures4. LBP-related disability has increased worldwide since 1990, and the prevalence of disability caused by LBP has grown across all age categories, with the 50-54 age group having the highest prevalence. Moreover, adults aged 20 to 65 who were employed lost over 70% of their years due to disabilities caused by LBP4. The prevalence of LBP is expected to rise as the global population ages, with the 50-54 age group currently having the highest prevalence, even though LBP frequency increases with age until 80-89 years5.


While population growth and ageing are the primary contributors to the rise in the burden of LBP, there could be other factors at play. The overall cost of low back pain in European countries accounts for 0.1-2% of their GDP6-7 However, there is a lack of information regarding the cost of LBP in lower-middle income countries. The cost of low productivity is also significant, with chronic low back pain being prevalent among more than 52%8-10 of employees in LMICs. Since the cause of LBP is unknown in most cases, it is classified as non-specific11. The National Institute for Health and Care Excellence guidelines recommend a shift towards self-management, education, and activity-based treatments, rather than surgical and pharmacological approaches12-14. Therefore, it is crucial to develop a program that addresses this condition and reduces the global burden of disease. This study aims to evaluate the effectiveness of positional release technique and muscular energy technique in alleviating pain, improving range of motion, and reducing disability among LBP patients.


Methodology

Study Design

Single blinded randomized controlled trial.

Sampling Technique

In this study, 30 patients were included and assigned to either Group A or Group B using the simple random sampling method with the envelope technique. Each group consisted of 15 patients. Before the intervention, all patients underwent a pre-assessment for the three outcome measures.

Study Setting

Data was collected from Al-shifa physical therapy clinic, Hyderabad.

Inclusion Criteria

  • Low back pain (LBP)

  • Age 26 to 40 y/o

  • Occupational/ work-related

  • Job experience >5 years

  • Computer usage >4 hours/ day

Exclusion Criteria

  • Radiating LBP

  • History of spinal surgery

  • Systemic diseases

  • History of trauma

  • Scoliosis

  • Spinal stenosis

  • Discal lesions

Data Collection Procedure

In total n=30 patients with clinically diagnosed LBP divided in categories. In group A (MET); 15 patients receiving muscle energy technique (erector spinae and quadratus lumborum) and Group-B (PRT) 15 patients receiving Positional Release Technique. All participants were blinded regarding treatment.

Patients were provided with informed consent and an orientation was organized in which they were brief about the treatment sessions. After their signed consent, both groups received a therapeutic regime of 12 treatment sessions for 2 weeks followed by a follow-up of 1 session after 15 days. Each session of MET was applied on quadratus lumborum and erector spinae consists of each muscle contraction (post-isometric relaxation and reciprocal inhibition) hold for total duration of 20 seconds and then there is period of relaxation for 10 seconds. This was repeated 9 times. It counts for 270 seconds in total. Each technique positional release of ease is held for total duration of 90 seconds on quadratus lumborum and erector spinae 3 times. It counts for 270 seconds in total. Pain, ROM lumbar spine, Functional disability were assessed via Numeric pain rating scale (NPRS), Modified Schober’s test and Oswestry Disability Index (Fig 1).

Figure-1: Depicting Study Framewor


In the Modified Schober’s

Therapist position

Standing beside patient.

Patient’s position

Standing and then bent down when instructed.

Procedure

This technique involves marking marks 5 cm below and 10 cm above the level of S2, which is recorded in between the posterior superior iliac spines (PSISs). This method is used to measure lumbar range of motion (ROM). The patient will be asked to bend down to the maximum extent possible. The spacing between three places is recorded before and after the forward flexion of the limbs. The difference between the two measures will provide an estimate of the amount of flexion experienced15.

The identical technique is repeated, but this time participant is advised to bend backwards to the greatest extent possible. The amount of extension will be determined by the difference in measurements.


Procedure of Muscle energy technique for erector spinae

Position of the patient

The patient is seated on a couch and has his/her hands behind her neck. Legs of the patient were hanged down. In order to promote side bending and rotation, the practitioner retains a knee on the table next to the patient.

Therapist position

Clinician’s stands beside the individual where its side bending and rotation are to be achieved with one knee supported on couch.

Technique

To perform the technique, the therapist places their hand on the front of the patient's axilla on the side where the rotation is indicated, then moves their hand across the patient's neck and rests it on the opposite shoulder.

Practitioner passively performs flexion, side bending and rotation. Practitioner other hand assess the tighten part and verify that various forces localize at point of maximum tension. When the individual has been brought to a comfortable range of flexion and is holding his or her breath, for 7-10 seconds and ask to upright position, little degree against the therapist's ardent opposition. The patient is then requested to exhale and look in the direction of the side bending. introduced. This mechanism is post isometric relaxation. The patient relaxes and the therapist take him towards new resisting barrier.

At the end of each repetition cycle, the patient is asked to inhale for 7-10 seconds and gently strive to rotate against resistance, towards to the barrier. This results in the antagonists contracting. After relaxing, a further barrier is encountered16.


Frequency of treatment

The procedure is carried out for holding contraction for 20 seconds and then 10 seconds relaxation with 9 repetitions total. It counts for 270 seconds.

Positional release technique for erector spinae

Patient position

Prone lying with ankle bolstered towards the side of tenderness.

Clinician position

Clinician positions itself next to the thorax on the side opposite to be treated.

Technique

Prone lying position hip is extended and adducted. The position is held for one minute and thirty seconds before being gradually returned to neutral. The position is held gently and slowly until the level of discomfort reduces. Place your proximal hand, elbow, and forearm diagonally across your back and toward the unaffected hip to palpate. With your near forearm, support the rib cage that is not affected. In order for your shoulder to touch the patient's shoulder, cross your opposite hand and arm over the opposite shoulder and into the patient's axilla. Your anterior torso may touch the patient's posterior torso depending on how the tables are set up, your size, and the patient's size. Put the palm of your other hand on the patient's posterior rib cage.

While holding the non-affected side with your forearm, use your far arm to extend and rotate the involved side's thorax and shoulder girdle. Once the extension and rotation positions have been identified use the far arm and hand to elevate and depress the shoulder girdle of the affected side17.


Frequency of treatment

Each position of ease is held for 1 minute and 30 seconds with continuous 3 repetitions.

Procedure of Muscle Energy Technique for Quadratus Lumborum

Patient’s position

Supine lying with crossed feet.

Therapist position

Clinician must stand non-treated quadratus lumborum side while holding shoulder to grasp axilla whereas other hand on tip of anterior superior iliac spine (ASIS).

Procedure

The subject is commanded to slightly side bend towards the treated side for 7 seconds. This initiate’s slight isometric contractions on QL. Following a period of 7 seconds, the patient is instructed to relax completely and then side bend towards the untreated side, while the practitioner shifts his weight from the leg closer to the head to the one closer to the feet and tilts his body slightly backwards. This will effectively stretch QL18.

Frequency

The contraction will hold for 15-20 seconds allowing the extensibility of contracted muscle with 3 repetitions.

Procedure of Positional Release Technique for Quadratus Lumborum

Patient position

Lying with prone knee bend


Therapist position

Clinician stands beside the patient on side to be treated.

Procedure

While palpating the quadratus lumborum tender point, apply lateral trunk flexion and move hip joint into abduction, extension and external rotation. Slide both legs across the table toward the QL lesion with your far hand while examining the patient and applying lateral trunk flexion to the affected side. With your far hand, extend, abduct, and externally rotate the stretched limb. Use a bolster or rest the patient's thigh on your thigh and brace it against your body to stabilize the leg into the ideal treatment posture. Once you've established the ideal treatment position, adjust it by applying pressure with your opposite hand or body to the limb that is closest to the lesion 19.

Frequency

Hold this position of ease till 1 minute and 30 seconds unless tenderness is reduced. Follow this procedure 3 times consecutively.

Data analysis was done using SPSS, Version- 21. Percentages and frequency were used to report the gender and number of patients in each group. Whereas, mean ± SD was used to report age, experience, duration of pain and time duration of the computer used by the patients. Pre-post scores of NPRS, modified schober’s test scores and ODI were analyzed using Paired sample t- score. Independent sample t-test was used for further comparison between both groups post treatment as the data was normally distributed.


Ethical Consideration

The guidelines provided by Belmont Report under Helsinki Declaration was exclusively followed. Informed consent were taken prior to recruitment and autonomy was given to left the study at any time without assigning any reason. The protocol was approved from Institutional approval board of Al-Shifa Hospital, IRB number ASC-PT-0122/11/2021.

Results

Thirty patients were recruited in the study, out of which 90% were female and remaining 10% were male, with mean age of 36.43 ± 3.82 years, whereas mean job experience of the patients was 8.30±4.9 years. Participant’s mean time of the computer usage on the daily basis was 4.23± 2.11 and mean duration of experiencing the back pain was 2.17 ± 1.53 months (table 1).

Variables

Mean/ Frequency

SD

GENDER

FEMALE

27 (90)

_

MALE

3 (10)

Age (Years)

36.43

3.82

Pain Duration (months)

2.17

1.53

Duration of Computer Use (Hours per Day)

4.23

2.11

Job Experience (Years)

8.30

4.96

Table IV-1: Characteristics of the participants

Within group analysis was done using dependent t test for all the variables because of normal distribution of data. As shown in Table 2 both groups showed statistically significant results on NPRS. However, the mean score of NPRS in patients receiving Positional Release technique on the numeric pain rating scale decreased to 2 ± 0.53 from 4.6 ± 1.18 after two weeks of intervention in contrast to Muscle Energy Technique Where the pre mean value was 4.4 ± 1.35 that reduced to 1.67 ± 0.81 with p value <0.01.



Variables

Intervention

Baseline values ± SD

Post readings ± SD

CI at 95%

Level of sig.

NPRS

Group A

4.40 ±1.35

1.66 ±0.81

5.0 to 7.0

<0.01

Group B

4.60 ±1.18

2.00 ±0.53

ODI

Group A

19.0 ±1.51

6.06 ±1.27

7.0 to 9.0

<0.01

Group B

18.53 ±1.35

10.73 ±1.79

Modified Schober’s Test

Group A

5.44 ±0.60

7.47 ±0.87

5.0 to 8.0

<0.01

Group B

5.64 ±0.64

7.27 ±0.92

Table IV-2: Within group analysis of NPRS, ODI, and Modified Schober’s Test

Between groups analysis was performed using independent t test as the data was normally distributed. The results revealed statically significant results in both the groups. However, group A show more significant results with mean value of 1.66±0.81, and 6.06±1.27for NPRS, and ODI respectively (table 3).


Outcome

Group A

Group B

F-test

95% CI of difference

p-value

NPRS Scores

1.66±0.81

2.0±0.53

0.565

-0.18 to 2.52

<0.01

ODI Scores

6.06±1.27

10.73±1.79

0.635

-3.43 to 0.43

<0.01

Modified Schober’s Test Score

7.47±0.13

7.27±0.14

0.14

-2.42 to -0.45

<0.01

Table 3: Post NPRS, Modified Schober’s Test and ODI Scores between MET and PRT

Discussion

The purpose of this research was to see how muscle energy method and position release on the quadratus lumborum and erector spinae affected pain, lumbar range, and impairment in people with low back pain. The results of our study revealed that both interventions were effective in both the groups with post mean value of 2.0±0.53, 10.73±1.79, and 2.80±0.14 for NPRS, ODI, and Modified Schober’s Test Score in Group B and 1.66±0.81, 6.06±1.27, and 3.46±0.13 for group A respectively. The results were in consistent with the finding of Priyanka rashi et al20 that Muscle energy technique has more beneficial effects in relieving pain.

There “was critical difference in the force of pain within the groups and between the groups after 4th week of treatment. Decline in pain intensity as documented with improvement in lumbar ROM was huge in the PRT group. As “found from the MODQ scale, relief from discomfort was accomplished with both Group A and Group B, in this study was considerably more critical in the PRT group. Here, MET helps in increase in blood supply, thus it decreases stiffness and restores the ROM”. It help in increasing mobility and strengthens the back muscles. While, hot moist packs help in reducing erector spinae spasm as it is helpful in increasing vascular permeability, vasodilation and reducing “inflammation. Thus, it leads to decease in pain and increasing mobility of back. PRT, used in this study had result in pain reduction. Pain reduction might have been due to the incongruent decline in the intrafusal and extrafusal fibers and reproduction of the undue proprioceptive activity21. Kaorr has given a conceptual model, how various manipulative methodologies such as isometric and stretching might be effective in the somatic dysfunction treatment22.


MET and PRT are likely useful in the relief of inflammation and spasm of the erecter spine muscle23-25 because they have activities that are akin to soft-tissue interventions, such as stretching the soft tissue in the affected spot and pushing fluids out of the inflamed area. Numerous studies have shown how effective MET and PRT are for treating low back pain. However, no study has compared the two methods using the MODQ scale for daily living tasks. There was no discernible difference between the two groups at the conclusion of the 4-week treatment period; however, there were statistically significant improvements in both active and passive lumbar extension range of motion.


MET are a successful method of treating both acute and chronic lower back pain. Chronic lateral epicondylitis and chronic neck discomfort can both be effectively treated with MET. When a functional restriction is present, MET can be used to extend the range of motion in a joint. Compared to MET, other methods appear to be better suitable for trigger sites26-27.


The greater effectiveness of the MET group may be due to its ability to directly target the erector spinae and quadratus lumborum muscles, which are commonly involved in LBP. The use of PRT, which involves the release of muscle tension through gentle positioning, may have also contributed to the improvements observed in the PRT group.


Overall, the study provides evidence to support the use of manual therapy techniques for the treatment of LBP. However, further research is needed to determine the optimal combination of manual therapy techniques for treating LBP, as well as their long-term effectiveness in reducing disability and improving quality of life for individuals with LBP. The findings of the study are consistent with previous research that has highlighted the effectiveness of manual therapy techniques in treating LBP. PRT and MET are two widely used manual therapy techniques that have been shown to reduce pain, improve range of motion, and increase muscle strength.


A Cochrane systematic review on 12 randomized controlled studies with 14 comparisons and 500 individuals across all comparisons was performed in 2016. With the exception of one, the studies included were typically tiny (with sample sizes ranging from 20 to 72), and the majority were deemed to be at high risk of bias. All trials reported on short-term results. To enable merging, the studies were split into seven functionally comparable analyses based on the patient group (acute or chronic LBP) and the type of control intervention. The addition of MET to other therapies did not result in better pain and disability results in the near term, according to low-quality data from meta-analyses and GRADE evaluation28.


Conclusion

This study aimed to investigate the impact of Positional Release Technique and Muscle Energy Technique on individuals experiencing low back pain. The results of the study indicate that both therapy options are effective in addressing low back pain. Notably, the muscle energy technique demonstrated significantly greater effectiveness than the positional release technique.

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    i Sr. Lecturer/ Principal, Hyderabad Institute of Medical & Allied Science, Hyderabad, Pakistan (0009-0005-2895-6439)

    ii Assistant Professor/Vice principal, Isra University, Hyderabad, Pakistan (0009-0009-6778-9927)


    ISSN PRINT: 2311-3863 1 ISSN ONLINE: 2309-7833

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