An interventional study of DSE plus MET group A and DSE alone group B in Chronic Non-specific Low Back Pain, sponsored by University of KwaZulu. Completed at 1 site in Nigeria. Open to participants aged 20 Years to 55 Years. Per ClinicalTrials.gov, last updated 2021-07-26.
Sponsored by University of KwaZulu · Not applicable, Interventional, and Treatment
Low back pain is the most common health problem that affects work performance and quality of life. Non-specific low back pain (NSLBP) is defined as low back pain not attributable to a recognizable, known specific pathology. NSLBP is the leading cause of disability among the major musculoskeletal conditions which leads to Impairments, Activity Limitations and participation restrictions. Therefore it becomes a psychosocial/economic burden on individuals, families, communities, industries and government. Existing literature shows globally 40% to 50% of people have LBP at some point in their lives and there exists a challenge in Africa on the best rehabilitation methods for low back pain management which could prevent chronic pain and disability. Therefore, this study aims to determine the effectiveness of MET when combined with DSE in the management of chronic NSLBP patients and to analyze the additional effect the MET procedure will provide relative to DSE.
Low back pain (LBP) is arguably the most prevalent musculoskeletal condition found among both developed and developing nations. Broadly defined as pain or discomfort in the lumbar region of the spine it is the leading cause of activity limitations, resulting in significant losses in productivity at work and incurs billions of dollars in medical expenditure annually. The prevalence of LBP worldwide is estimated to be between 30 and 80% among the general population and has been found to increase with age. In addition, a higher prevalence of LBP has been associated with lower socioeconomic status and lower education levels. According to the Global Burden of Disease (GBD) 2010 study, LBP is currently the 6th highest burden on a list of 291 conditions and is the cause of more years lived with disability globally than any other disease. Affecting just about anyone, of any gender, race or socioeconomic background, LBP has a substantial impact on the overall and financial well-being of an individual and society.
Therefore, it was postulated that the burden of LBP would be greater in lower and middle-income countries like those situated in Africa. A recent systematic review and meta-analysis published in 2018 revealed that the lifetime, annual and point prevalence of LBP among African nations, was higher than the global LBP prevalence. The majority of the studies included in this meta-analysis were conducted in Nigeria, which is a lower-middle-income country. In Nigeria, the annual prevalence rate of LBP has been reported between 33% and 74%, mostly affecting workers. The prognosis after an acute episode of LBP is less favourable than once thought, as 60-80% of the patients will experience recurrence or persistence of this disabling condition.12 Despite the high incidence and prevalence of LBP, little is known about the precise causes. As a clear pathoanatomic diagnosis cannot be identified in 85% of the patients,13 LBP in these patients is labelled as non-specific (NSLBP).
Despite extensive research, the issue of spinal pain management still constitutes a challenge for physicians, physiotherapists, and researchers. There are many therapies claimed to be useful for the treatment of NSLBP, but most of these treatments have not been well investigated or have been found to have modest effects in terms of pain relief and improving disability. Conservative treatment remains the best choice and usually involves physiotherapy. Exercise therapy is one of the most used treatment strategies as it has shown to be effective in decreasing pain and disability, and can even induce functional changes of the back muscles. Although, exercise therapy in highly recommend by experts in treatment guidelines, the evidenced treatment effects remain low to moderate. It is, therefore, useful to further explore the effectiveness of treatments that may assist people with NSLBP. Another, non-invasive, safe and inexpensive treatment technique used by physiotherapists, osteopaths, chiropractors and manual therapists in the treatment of NSLBP is Muscle Energy Technique (MET). MET involves alternating periods of resisted muscle contractions and assisted stretching. Although it has been suggested that MET can be used to lengthen a shortened muscle, mobilize an articulation with restricted mobility, strengthen a physiologically weakened muscle and reduce localized oedema and passive congestion, the physiological mechanisms underlying the therapeutic effects of MET are currently unclear. Mechanisms of altered proprioception, motor programming and control have been proposed, but research is required to confirm these hypotheses. While MET is often used for the treatment of NSLBP, a recent Cochrane review concluded that there is lack of empirical evidence on its effectiveness in the management of chronic NSLBP. These conclusions were made not because of the lack of treatment effectiveness, but because the currently available studies have been generally performed in too small study samples and have a high risk of bias, producing unreliable answers about this therapy. In conclusion, the Cochrane review emphasized the need for larger, high-quality studies to determine the effectiveness and safety of MET in chronic NSLBP.
Therefore, the aims of this study are to determine the effectiveness of MET when combined with DSE in the management of chronic NSLBP patients and to analyze the additional effect the MET procedure will provide relative to DSE. Thus, the efficacy of the combination of MET plus DSE will be compared with outcomes of treatment with DSE or standard physiotherapy (SP) in the management of chronic NSLBP. The study will evaluate the effect of each intervention on trunk Range of Motion (ROM), muscle functions (limited to muscles strength, endurance, force and Maximal voluntary contraction [MVC]), Quality of Life (QoL), functional disability, activity limitations and participation restrictions.
The primary goal of this study is to evaluate the effects of MET in combination with DSE on quality of life and trunk muscles functions in patients with chronic NSLBP, however, the study involves the following as general goal that needs to be realized;
Therefore, the RCT component of this research has the following objectives.
Exclusion Criteria:
The DSE will consist of seven exercise activities that will be administered at random viz; 1. Bridging 2. Supine twist stretch 3. Double leg knee to chest stretch 4. Plank heel raise 5. Ball squat 6. Leg press on ball 7. Hip Lifts. The MET procedure will involve a total of 5-10 contralateral isometric voluntary contractions that will be resisted by force equal to the participant's for 30 seconds with 5 seconds rest between contractions (corresponding to 20-30%).
Procedure: DSE plus MET group A
The DSE will consist of seven exercise activities that will be administered at random viz; 1. Bridging 2. Supine twist stretch 3. Double leg knee to chest stretch 4. Plank heel raise 5. Ball squat 6. Leg press on ball 7. Hip Lifts.
Procedure: DSE alone group B
This group will involve classical massage, therapeutic exercises (strengthening spinal and abdominal muscles) and a combination of interferential therapy and therapeutic ultrasound (INF/UTS) applied to the lumbosacral region. The participants will be asked to perform the therapeutic exercises once a day at home.
Procedure: Standard Physiotherapy treatment group C
The Dynamic stabilization exercises will consist of seven exercises, which are aimed to strengthen the lumbar stabilizing muscles. All seven dynamic stabilization exercises will be performed once and always in random order. The procedure for MET involves voluntary contraction of the participant's muscle in a precisely controlled direction, at varying levels of intensity, against a distinctly executed counterforce applied by the therapist. In this type of therapy, a participant contracts muscles by pushing against resistance provided by the therapist. The therapist then assists the participant in stretching, strengthening and relaxing those muscles.
The DSE in this arm is the same a described in group A, i.e. it involves seven exercises activities administered randomly at every session of the study intervention.
In the control group, the participants will receive standard physiotherapy treatment offered for the management of chronic NSLBP patients in Nigeria. Therefore, individuals randomized to this therapeutic group will be treated with classical massage, therapeutic exercises and a combination of interferential therapy and therapeutic ultrasound (INF/UTS) applied to the lumbosacral region.
Medical Outcomes Survey Short-Form-36 (SF-36)
Quality of Life (QoL) will be assessed with SF-36, The questionnaire is divided into 10 segments with a total of 36 questions. The segments involve Demography, General Health, Limitation of Activities, Physical Health Problem, Emotional Health Problem, Social Activities, Pain, Energy and Emotion, Social Activities and General Health.
Time frame: 6 month
Activity Limitation and Participation Restriction
Level of activity Limitation and Participation Restriction would be measured using Orebro Musculoskeletal Pain Screening Questionnaire.
Time frame: 6 month
Basal Mass Index (Demographic data)
Using formula; Body weight/Height square.
Time frame: Once
Skin fold thickness for percentage body fat (Demographic data)
Skin fold calliper would be used to measure participants skin fold thickness
Time frame: Once
Transverse abdominus muscles contraction rate
Pressure biofeedback unit
Time frame: 6 months
Level of pain perception
Level of Pain Perception would be measured using pain numeric rating scale, it has a scale of 0-10-mm (0 means no Pain, 1-3 means mild pain, 4-7 means moderate pain and 8-10 means severe pain) and the minimally important change for the visual analog scale is 2 (using a 0-10 self-report scale). The patient is asked to make three pain ratings, corresponding to current, best and worst pain experienced over the past 24 hours. The average of the 3 scores will represent patient's level of pain perception.
Time frame: 6 months
Functional Disability
Level of Functional Disabilities of Participant resulting from CMLBP would be measured using Oswestry disability Index
Time frame: 6 months
Spine range of motion
Inclinometer would be used to measure trunk range of motion
Time frame: 6 months
Trunk extension endurance test
Biering-sorensen test
Time frame: 6 months
Trunk flexion endurance test
McGill's torso battery test
Time frame: 6 months
Trunk side flexion endurance test
McGill's torso battery test
Time frame: 6 months
Global Rating of Change Scale (GROC)
This scale will be used to evaluate the satisfaction of the participant with the study intervention in term of improvement on symptoms.
Time frame: 6 months
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Plan to share: Undecided — We have not yet decided whether to share IPD, but we will when we find it convenient
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University of KwaZulu