About this trial
The aim of this randomized controlled trial is to find the effectiveness of low load blood restriction training on improving hamstring muscle strength, alleviating pain and reducing functional disability in nonspecific low back pain patients
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Both gender
Age is between 18-45 years
Individuals with pain localized posteriorly below the costal margin and above the inferior gluteal folds for more than 12 weeks
A score greater than or equal to 4/10 on Numeric Pain Rating Scale (NPRS)
Disqualifiers
Patients of spinal stenosis, disc herniation spondylolisthesis, spondylosis or osteoporosis will be excluded
Participants had a history of hip or lower extremity pathology requiring medical or surgical intervention.
History of venous thromboembolism (VTE), clotting or other hematologic disorder
Peripheral arterial disease, hypertension (blood pressure >140/90 mm Hg), coronary artery disease
Trial design
Parallel
Treatments tested in this trial
Conventional PT
Other interventionAll interventional participants will attend 3 weekly 45-50 minutes sessions for a duration of four week. Group B will receive electrical hot packs for 8-10 minutes followed by myofascial releases using a foam roller for 5-8 minutes primarily targeting the hamstring. Total 4 sets of each exercise (Glute bridge exercises, lumbar extension exercise, straight leg raise from prone and table top exercises) with 20 repetitions will be performed. Allow 30-60 sec rest interval
Low Blood Flow Restriction Training
Other interventionAll interventional participants will attend 3 weekly 45-50 minutes sessions for a duration of four week. Group A will receive electrical hot packs for 8-10 minutes followed by myofascial releases using a foam roller for 5-8 minutes primarily targeting the hamstring. For low load BFR training therapist will place sphygmomanometer cuff 10cm below the inguinal crease on the upper 3rd of thigh. The inflation pressure range will be individualized intended to produce complete arterial occlusion measured manually by palpating posterior tibial artery until the pulse will be felt no longer. Deflate the pressure cuff up to 60-80% of the AOP to create partial arterial occlusion. Total 4 sets of each exercise (Hamstring curls, Single leg hamstring curls on stability ball, standing hamstring curl, hamstring curl with sliders) with 30 repetitions in 1st set and then 15 repetitions in remaining 3 sets. Allow 30-60 sec rest interval between sets
Treatment groups
Trial outcomes
Primary outcomes
Manual Muscle Testing (MMT)
MMT is the most commonly used method for documenting impairments in muscle strength. The examiner in the application of force to the subject's resistance evaluates the muscles being studied as subjectively "weak" or "strong" on a 5-point scale.
Numeric Pain Rating Scale (NPRS)
The NPRS is a segmented numeric version of the visual analog scale which is used to assess pain. It scores ranges from 0-10, 0 means No pain and 10 means Severe pain. Patient will be asked to verbally report the pain score.
Oswestry Disability Index (ODI)
The Oswestry Disability Index (ODI) a patient-completed questionnaire which gives a subjective percentage score of pain-related disability in persons with low back pain (LBP). The Oswestry Disability Index (ODI) addresses a broader concept of disability than that directly related to pain intensity
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