Strain — Definition / সংজ্ঞা
Strain হলো muscle বা tendon-এর overstretching, partial tear বা complete tear। Tendon হলো muscle-কে bone-এর সাথে যুক্ত করা fibrous cord। Strain সাধারণত back, neck, hamstring, calf, shoulder-এ বেশি হয়। AAOS অনুযায়ী strain-এ pain, muscle spasm, weakness, swelling, inflammation, cramping দেখা যায়।
Sprain vs Strain
- Sprain: ligament injury — joint-এর ligament ছিঁড়ে/টানে।
- Strain: muscle বা tendon injury — muscle/tendon টানে বা ছিঁড়ে।
Causes / কারণ
- Sudden overstretching: দৌড়, লাফ, হঠাৎ মোচড়, ভারী জিনিস তোলা।
- Poor warm-up: exercise বা sports-এর আগে warm-up না করলে muscle tight থাকে।
- Muscle fatigue: অতিরিক্ত কাজ/জিম/খেলা করলে muscle control কমে যায়।
- Weak or imbalanced muscle: hamstring–quadriceps imbalance, weak core, poor posture।
- Previous strain: আগের injury ঠিকমতো heal না হলে reinjury হয়।
- Improper technique: ভুলভাবে weight lifting, running mechanics, sudden acceleration।
- Dehydration/electrolyte imbalance: cramp ও muscle fatigue বাড়ায়।
- Direct trauma: ধাক্কা/পড়ে যাওয়া থেকেও muscle-tendon tear হতে পারে।
Symptoms / লক্ষণ
Mild strain — Grade I
- হালকা ব্যথা
- muscle tightness
- movement করলে ব্যথা বাড়ে
- সামান্য swelling
- strength প্রায় normal
Moderate strain — Grade II
- তীব্র ব্যথা
- swelling ও bruising
- muscle spasm
- হাঁটা/নড়াচড়া কষ্টকর
- strength কমে যায়
- injured area চাপ দিলে tenderness
Severe strain — Grade III
- muscle/tendon complete tear
- sudden “pop” sensation
- বেশি swelling/bruising
- muscle defect বা gap feel করা যায়
- affected limb ব্যবহার করা যায় না
- severe weakness বা loss of function
Clinical Diagnosis / clinically কীভাবে diagnose করা হয়
Diagnosis মূলত history + physical examination দিয়ে হয়। Mayo Clinic অনুযায়ী exam-এ swelling, tender spots, pain location/intensity দেখে severity বোঝা হয়; complete tear হলে defect দেখা/মনে হতে পারে, আর ultrasound soft tissue injury আলাদা করতে সাহায্য করে।
Specific clinical assessment
- History: injury কীভাবে হয়েছে, pop sound ছিল কি না, হাঁটতে পারছে কি না, previous injury আছে কি না।
- Inspection: swelling, bruising, deformity, muscle gap।
- Palpation: local tenderness, warmth, defect।
- Range of motion: active ও passive movement pain।
- Strength test: resisted contraction করলে pain/weakness।
- Functional test: walking, squatting, heel raise, straight leg raise—injury site অনুযায়ী।
- Neurovascular exam: pulse, sensation, capillary refill—especially severe swelling হলে।
Investigations / পরীক্ষা-নিরীক্ষা
সাধারণ strain-এ usually investigation লাগে না
Mild–moderate strain অনেক সময় clinical diagnosis দিয়েই manage করা যায়।
X-ray
- fracture সন্দেহ হলে
- severe trauma
- bony tenderness
- deformity
- weight bear করতে না পারলে
- avulsion injury সন্দেহ হলে
Ultrasound
- partial/complete muscle tear দেখতে
- hematoma দেখতে
- tendon injury differentiate করতে
- dynamic examination দরকার হলে
MRI
- elite athlete/sports injury
- severe pain + functional loss
- complete tear সন্দেহ
- surgery planning
- symptoms 2–3 সপ্তাহেও improve না হলে
Lab test
- সাধারণ strain-এ CBC/ESR/CRP লাগে না।
- fever, infection, inflammatory myopathy, DVT suspicion থাকলে relevant lab করা যায়।
Differential Diagnosis / যেগুলোর সাথে confuse হতে পারে
- Sprain — ligament injury
- Fracture / avulsion fracture
- Tendon rupture — Achilles rupture, biceps rupture
- Dislocation
- Contusion / muscle bruise
- DOMS — delayed onset muscle soreness, exercise-এর 24–72 ঘন্টা পরে
- DVT — calf pain + swelling + warmth
- Compartment syndrome — severe pain, numbness, tight compartment; emergency
- Radiculopathy / sciatica — back থেকে leg pain, numbness
- Myositis / infection — fever, redness, severe tenderness
Complications / জটিলতা
- Chronic pain: ঠিকমতো rest/rehab না করলে ব্যথা দীর্ঘস্থায়ী হয়।
- Recurrent strain: premature return to play/work করলে আবার tear হয়।
- Muscle weakness: tear heal হলেও strengthening না করলে weakness থাকে।
- Reduced flexibility: scar tissue ও stiffness তৈরি হয়।
- Hematoma: muscle-এর ভেতরে blood collection।
- Myositis ossificans: repeated trauma/large hematoma থেকে muscle-এর ভেতরে bone-like calcification।
- Complete tendon rupture: severe strain untreated থাকলে function loss হতে পারে।
- Compartment syndrome: rare but emergency—severe pain, numbness, cold limb, pulse problem।
Treatment / Management — Guideline-based
First 48–72 hours: PRICE / POLICE approach
AAOS এবং Mayo Clinic strain/sprain-এর immediate care হিসেবে rest/ice/compression/elevation বা PRICE recommend করে; Mayo Clinic protect, rest, ice, compression, elevation বলেছে।
করণীয়
- Protect: injured part support করুন; severe leg strain হলে crutch।
- Relative Rest: painful activity বন্ধ, কিন্তু সম্পূর্ণ bed rest নয়।
- Ice: 15–20 মিনিট, দিনে 3–5 বার, প্রথম 48 ঘন্টা; direct skin-এ ice নয়।
- Compression: crepe bandage, তবে বেশি tight নয়।
- Elevation: injured limb heart level-এর উপরে।
- Early gentle movement: pain কমলে gentle ROM শুরু।
- Physiotherapy: stretching → strengthening → functional training → return to work/sports।
Cleveland Clinic উল্লেখ করেছে, RICE acute pain/swelling কমাতে সাহায্য করে, তবে দীর্ঘদিন complete rest করা উচিত নয়; কয়েকদিন পর pain-free gradual movement দরকার।
Pharmacological Treatment / Drug List
Adult dose দেওয়া হলো। শিশু, pregnancy, CKD, liver disease, peptic ulcer, anticoagulant use, asthma, heart disease থাকলে dose আলাদা হবে—doctor ছাড়া NSAID খাবেন না।
1) Paracetamol — first-line pain relief
- Generic name: Paracetamol / Acetaminophen
- Therapeutic category: Analgesic, Antipyretic
- Pharmacological class: Para-aminophenol derivative; central COX inhibition
- Bangladesh available brand name with mg: Napa 500 mg, Napa One 1000 mg, Napa Extend 665 mg, Ace 500 mg, Fast 500 mg, Feva 500 mg, Reset 500 mg, Xpa 500 mg — MedEx-এ Napa ও Ace sprain/bodyache/myalgia/back pain indication হিসেবে আছে।
- Dose: 500 mg every 6–8 hours PRN; max 3,000 mg/day safe practical limit; doctor-advised max 4,000 mg/day in selected adults.
- Duration: 3–5 days.
- কেন used হয়: mild–moderate pain কমাতে; gastric ulcer/kidney risk থাকলে NSAID-এর চেয়ে safer option।
- Side effects: nausea, rash; overdose হলে severe liver injury।
- Interaction: alcohol, warfarin, other paracetamol-containing cold medicine।
- Avoid/caution: liver disease, chronic alcohol use।
2) Ibuprofen — pain + inflammation
- Generic name: Ibuprofen
- Therapeutic category: Analgesic, Anti-inflammatory
- Pharmacological class: NSAID; non-selective COX inhibitor
- Bangladesh available brand name with mg: Serviprofen 400 mg, Siflam 400 mg, Trufen 400 mg, Uniflam 400 mg — MedEx brand list.
- Dose: 200–400 mg every 6–8 hours after meal; MedEx adult max OTC-style dose 1200 mg/day উল্লেখ করে।
- Duration: 3–5 days; usually max 7 days unless doctor reviews.
- কেন used হয়: swelling, inflammatory pain, sports strain pain কমাতে।
- Side effects: gastritis, dyspepsia, GI bleeding, renal impairment, BP rise, bronchospasm।
- Interaction: anticoagulant/warfarin, aspirin, steroid, SSRI, ACEi/ARB + diuretic, lithium, methotrexate।
- Avoid/caution: peptic ulcer, CKD, uncontrolled HTN, heart failure, ischemic heart disease, NSAID-induced asthma, pregnancy 3rd trimester।
3) Naproxen / Naproxen sodium — longer acting NSAID
- Generic name: Naproxen / Naproxen sodium
- Therapeutic category: Analgesic, Anti-inflammatory
- Pharmacological class: NSAID; propionic acid derivative
- Bangladesh available brand name with mg: Naprosyn 250/500 mg, Naprox 250/500 mg, Napryn 250/500 mg, Naxin 250/500 mg, Naspro 250/500 mg, Nuprafen 250/500 mg — MedEx list.
- Dose: 250–500 mg twice daily after meal.
- Duration: 3–5 days; severe inflammation হলে doctor review সহ 7 days।
- কেন used হয়: moderate inflammatory pain, hamstring/calf/back strain pain।
- Side effects: gastritis, ulcer/bleeding, renal injury, edema, BP rise।
- Interaction: anticoagulant, aspirin, steroid, SSRI, ACEi/ARB, diuretic, lithium, methotrexate।
- Avoid/caution: ulcer, CKD, heart failure, uncontrolled HTN, pregnancy 3rd trimester।
4) Diclofenac — commonly prescribed NSAID, but caution
- Generic name: Diclofenac sodium/potassium
- Therapeutic category: Analgesic, Anti-inflammatory
- Pharmacological class: NSAID; phenylacetic acid derivative
- Bangladesh available brand name with mg: Diclofen 50 mg tablet, Diclofen SR 100 mg, A-Fenac 50 mg, G-Diclofenac 50 mg, Genac 50 mg, Fastfit gel 1%, Fengel gel 1%, Diclofen gel 1% — MedEx lists tablet/gel/injection strengths.
- Dose: oral 50 mg 2–3 times daily after meal; SR 100 mg once daily. Use lowest effective dose.
- Duration: 3–5 days.
- কেন used হয়: acute inflammatory pain, swelling, traumatic muscle pain।
- Side effects: gastritis, GI bleeding, kidney injury, edema, BP rise; diclofenac-এর cardiovascular risk তুলনামূলক বেশি হতে পারে।
- Interaction: lithium, digoxin, anticoagulant, cyclosporine, methotrexate, diuretics, other NSAIDs/steroids—MedEx diclofenac interaction list এ এগুলো উল্লেখ আছে।
- Avoid/caution: ischemic heart disease, stroke risk, CKD, ulcer, uncontrolled HTN, anticoagulant use।
5) Aceclofenac — pain + inflammation
- Generic name: Aceclofenac
- Therapeutic category: Analgesic, Anti-inflammatory
- Pharmacological class: NSAID; COX inhibitor
- Bangladesh available brand name with mg: Flexi 100 mg, Movex 100 mg, Avenac 100 mg, Mervan 100 mg, Labenac 100 mg, Ceclofen 100 mg, Painkil 100 mg, Flexi SR 200 mg — MedEx list.
- Dose: 100 mg twice daily after meal.
- Duration: 3–5 days.
- কেন used হয়: trauma, lumbago, inflammatory musculoskeletal pain; MedEx aceclofenac pain/inflammation and trauma/lumbago indication উল্লেখ করে।
- Side effects: dyspepsia, gastritis, nausea, dizziness, edema, renal risk।
- Interaction: anticoagulant, steroid, other NSAID, ACEi/ARB, diuretic, lithium, methotrexate।
- Avoid/caution: same NSAID cautions।
6) Etoricoxib — COX-2 selective NSAID
- Generic name: Etoricoxib
- Therapeutic category: Analgesic, Anti-inflammatory
- Pharmacological class: Selective COX-2 inhibitor
- Bangladesh available brand name with mg: Etorix 60/90/120 mg, Oricox 60/90/120 mg, Recox 60/90/120 mg, Ribox 60/90/120 mg, Etoshine 60/90 mg, Riox 60/90/120 mg — MedEx list.
- Dose: 60–90 mg once daily after meal; acute severe pain sometimes 120 mg once daily very short course under doctor.
- Duration: 3–5 days.
- কেন used হয়: NSAID দরকার কিন্তু GI irritation কমাতে COX-2 option; তবে cardiac risk বিবেচনা জরুরি।
- Side effects: BP rise, edema, dyspepsia, renal impairment, cardiovascular risk।
- Interaction: warfarin/anticoagulant, ACEi/ARB, diuretic, lithium, methotrexate।
- Avoid/caution: ischemic heart disease, stroke/TIA history, uncontrolled HTN, CKD, heart failure।
7) Diclofenac gel / topical NSAID — local pain
- Generic name: Diclofenac topical gel
- Therapeutic category: Topical analgesic, anti-inflammatory
- Pharmacological class: Topical NSAID
- Bangladesh available brand name with mg: Diclofen gel 1%, Fastfit gel 1%, Fengel gel 1%, Relnac gel 1%, Jefenac gel 1% — MedEx diclofenac topical preparations list করে।
- Dose: affected area-তে thin layer দিনে 3–4 বার; হাত ধুয়ে ফেলবেন।
- Duration: 7–14 days.
- কেন used হয়: localized mild–moderate strain pain; oral NSAID contraindicated হলে safer।
- Side effects: skin irritation, rash, burning sensation।
- Interaction: oral NSAID-এর সাথে একসাথে বেশি ব্যবহার করলে systemic NSAID risk বাড়তে পারে।
- Avoid/caution: broken skin, eczema, NSAID allergy।
8) Tizanidine — muscle spasm থাকলে
- Generic name: Tizanidine hydrochloride
- Therapeutic category: Skeletal muscle relaxant
- Pharmacological class: Centrally acting α2-adrenergic agonist
- Bangladesh available brand name with mg: Relentus 2 mg, Sirdalud 2 mg, Tizadin 2 mg, Tizalex 2 mg, Tizalud 2 mg, Tizan 2 mg, Tizanac 2 mg — MedEx list.
- Dose: 2 mg at night or 2 mg 2–3 times daily; MedEx painful muscle spasm dose 2–4 mg three times daily উল্লেখ করে।
- Duration: 3–5 days only; sedation থাকলে night dose preferable।
- কেন used হয়: painful muscle spasm/cramp কমাতে; MedEx spine-related painful muscle spasm indication উল্লেখ করে।
- Side effects: drowsiness, dizziness, dry mouth, hypotension, weakness, liver enzyme rise।
- Interaction: ciprofloxacin/fluvoxamine avoid; alcohol, sedatives, benzodiazepine, antihypertensive-এর সাথে sedation/hypotension বাড়ে।
- Avoid/caution: liver disease, elderly, low BP, driving/operating machine।
9) Eperisone — muscle tightness/spasm থাকলে
- Generic name: Eperisone hydrochloride
- Therapeutic category: Skeletal muscle relaxant
- Pharmacological class: Centrally acting muscle relaxant
- Bangladesh available brand name with mg: Myonil 50 mg, Eprel 50 mg, Ezymas 50 mg — MedEx brand list.
- Dose: 50 mg three times daily after meal; MedEx adult dose দিনে ৩টি tablet three divided dose উল্লেখ করে।
- Duration: 3–7 days.
- কেন used হয়: muscle tightness/spasm কমাতে; MedEx এটিকে centrally acting skeletal muscle relaxant বলেছে।
- Side effects: dizziness, drowsiness, nausea, abdominal pain, rash, diarrhea, headache, constipation।
- Interaction: tolperisone HCl ও methocarbamol-এর সাথে avoid—MedEx interaction।
- Avoid/caution: driving, elderly, hypersensitivity।
10) Pantoprazole — NSAID-induced gastric protection, selected patients
- Generic name: Pantoprazole sodium
- Therapeutic category: Anti-ulcerant, acid suppressant
- Pharmacological class: Proton pump inhibitor
- Bangladesh available brand name with mg: Pantonix 20/40 mg, Pansec 20/40 mg, Pantex 20/40 mg, Pantolok 20/40 mg, Pantomak 20/40 mg, Pantogut 20/40 mg — MedEx list.
- Dose: 20–40 mg once daily before breakfast while taking NSAID in high-risk patient.
- Duration: NSAID course চলাকালীন 3–7 days; ulcer/GERD থাকলে doctor-directed longer course।
- কেন used হয়: NSAID-associated gastritis/ulcer risk কমাতে; Pantonix NSAID-induced ulcer indication-এ ব্যবহৃত।
- Side effects: headache, diarrhea/constipation, abdominal discomfort; long-term হলে B12/Mg deficiency, infection risk।
- Interaction: clopidogrel interaction less than omeprazole but still review; warfarin/digoxin/methotrexate caution।
- Avoid/caution: unnecessary long-term use নয়।
Bangladesh doctors commonly কী prescribe করেন — practical list
Mild strain
- Paracetamol 500 mg PRN
- Diclofenac gel 1% local application
- PRICE + rest + physiotherapy advice
Moderate strain with swelling
- Paracetamol + short course NSAID: Ibuprofen / Naproxen / Aceclofenac
- Topical diclofenac gel
- PPI if gastritis/ulcer risk থাকে
Strain with painful muscle spasm
- Paracetamol or NSAID
- Muscle relaxant: Tizanidine 2 mg at night or Eperisone 50 mg TDS
- Physiotherapy after acute pain decreases
Severe strain / suspected tear
- Analgesic
- Immobilization/support
- Ultrasound/MRI
- Orthopedic referral
- Surgery only if complete tendon/muscle tear or functional rupture
Normally strain-এ দরকার হয় না
- Antibiotic
- Steroid
- Long-term painkiller
- Opioid/tramadol
- Repeated NSAID injection
Emergency referral / কখন দ্রুত ডাক্তার দেখাবেন
- হাঁটতে/weight bear করতে পারছেন না
- severe swelling/bruising
- pop sound + sudden weakness
- numbness/tingling/cold limb
- pain progressively বাড়ছে
- deformity বা muscle gap
- fever/redness/warmth
- back strain-এর সাথে urine/stool control problem, leg weakness, saddle anesthesia
Prevention / প্রতিরোধ
- Exercise-এর আগে 5–10 মিনিট warm-up।
- Heavy lifting-এর সময় correct posture।
- Sudden intensity increase করবেন না—10% rule follow।
- Regular stretching + strengthening।
- Previous strain হলে full rehab ছাড়া খেলাধুলায় return নয়।
- Proper footwear।
- Hydration maintain।
- Workstation posture ঠিক রাখা।
- Gym-এ ego lifting না করা।
- Pain থাকলে “push through” না করে rest + assessment।
Overview / Summary
Strain হলো muscle বা tendon-এর stretch/tear injury। Mild strain rest, ice, compression, elevation, paracetamol/topical gel এবং gradual rehab-এ ভালো হয়। Moderate pain/swelling হলে short-course NSAID ব্যবহার করা যায়, তবে ulcer, kidney disease, heart disease, uncontrolled BP, anticoagulant use থাকলে NSAID ঝুঁকিপূর্ণ। Severe strain বা complete tear সন্দেহ হলে ultrasound/MRI ও orthopedic referral দরকার।
Actionable Plan / Steps
- প্রথম 48 ঘন্টা PRICE: protect, relative rest, ice, compression, elevation।
- Pain mild হলে Paracetamol ± Diclofenac gel।
- Swelling/inflammation বেশি হলে doctor review করে short-course NSAID।
- Spasm থাকলে 3–5 দিনের জন্য muscle relaxant বিবেচনা।
- 3–7 দিনের মধ্যে pain কমলে gentle stretching শুরু।
- 1–2 সপ্তাহে strength training শুরু; pain-free না হলে sports/gym নয়।
- Severe weakness, pop sound, walking inability, numbness থাকলে urgent orthopedic consult।
Reference List
Textbook
- Harrison’s Principles of Internal Medicine, 21st ed. McGraw-Hill. Section: Disorders of joints and adjacent tissues / approach to musculoskeletal pain.
- Davidson’s Principles and Practice of Medicine, 24th ed. Elsevier. Chapter: Musculoskeletal disorders.
- Robbins & Cotran Pathologic Basis of Disease, 10th ed. Elsevier. Chapter: Tissue repair, regeneration, fibrosis.
- Guyton and Hall Textbook of Medical Physiology, 14th ed. Elsevier. Chapter: Skeletal muscle contraction and neuromuscular function.
Guideline / Clinical source
- American Academy of Orthopaedic Surgeons. Sprains, Strains and Other Soft-Tissue Injuries — strain definition, symptoms, RICE, rehab.
- Mayo Clinic. Muscle strains: Diagnosis and treatment — exam, ultrasound, PRICE, analgesics, rehab.
- Cleveland Clinic. RICE Method for Injury — immediate soft tissue injury care and gradual movement.
- MedEx Bangladesh — Bangladesh brand availability and generic medicine data for paracetamol, NSAIDs, muscle relaxants, PPI.
Peer-reviewed journals with DOI
- Baoge L, Van Den Steen E, Rimbaut S, et al. Treatment of Skeletal Muscle Injury: A Review. ISRN Orthopedics. 2012;2012:689012. DOI: 10.5402/2012/689012.
- Jones P, Dalziel SR, Lamdin R, et al. Oral non-steroidal anti-inflammatory drugs versus other oral analgesic agents for acute soft tissue injury. Cochrane Database Syst Rev. 2020;8:CD007789. DOI: 10.1002/14651858.CD007789.pub3.
- van den Bekerom MPJ, Struijs PAA, Blankevoort L, et al. What is the evidence for rest, ice, compression, and elevation therapy in the treatment of ankle sprains in adults? J Athl Train. 2012;47(4):435–443. DOI: 10.4085/1062-6050-47.4.14.
Md.Rafiqul Islam Lipu,Date:-06-06-2026 saturday ,Time:-12-27-49 Pm