I have knee pain tell me so.e exercise

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knee pain exercise therapy

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Here are evidence-based exercises for knee pain, drawn from Harrison's Principles of Internal Medicine (22nd ed.) and Miller's Review of Orthopaedics, with support from recent systematic reviews:

Exercises for Knee Pain

Note: The specific exercises below are most applicable to osteoarthritis and general knee pain. If your pain is from a ligament injury, recent surgery, or another specific cause, see a physiotherapist for a tailored plan before starting.

1. Quadriceps Strengthening (Most Important)

Weakness in the muscles surrounding the knee is strongly correlated with pain severity. Strengthening the quadriceps is the cornerstone of knee pain management.

Straight Leg Raises

Lie on your back, one leg straight
Tighten the thigh muscle of the straight leg and lift it to ~45°
Hold 3–5 seconds, lower slowly
3 sets of 10–15 reps

Seated Leg Extension (bodyweight)

Sit in a chair, slowly straighten one knee and hold for 5 seconds
Lower slowly
3 sets of 10–15 reps

Mini Squats (0–30° range)

Stand holding a support if needed
Bend knees slightly (not a full squat) and hold 5 seconds
This strengthens quads with less joint stress

2. Hip and Glute Strengthening

Weak hip abductors contribute to poor knee alignment and increased pain, especially in patellofemoral pain.

Clamshells

Lie on your side, knees bent, feet together
Lift the top knee while keeping feet touching
3 sets of 15 reps each side

Side-Lying Leg Raises

Lie on your side, keep the top leg straight
Raise it to ~45°, hold briefly, lower slowly
3 sets of 15 reps

Glute Bridges

Lie on your back, knees bent, feet flat
Press through heels and lift your hips until body is straight
Hold 3–5 seconds
3 sets of 10–15 reps

3. Low-Impact Aerobic Exercise

Per Harrison's, aerobic capacity is significantly reduced in people with knee OA, and low-impact exercise is better tolerated than running or treadmill work:

Swimming or water aerobics — reduces joint load while improving strength and aerobic fitness
Cycling (stationary bike with seat raised high) — low impact, good range of motion
Walking on flat ground — effective; avoid hills if they trigger pain
Tai chi — evidence supports its use for knee OA; improves balance and reduces pain

4. Range of Motion & Stretching

These alone are not sufficient to reduce pain, but support overall joint health:

Heel Slides

Lie on your back, slowly slide your heel toward your buttocks, hold, return
Improves flexion range

Hamstring Stretch

Sit at the edge of a chair, straighten one leg with foot on the floor
Lean slightly forward until a gentle pull is felt at the back of the thigh
Hold 30 seconds, 3 reps each side

Calf Stretch

Stand facing a wall, one foot back, keep heel on the ground
Lean forward until a stretch is felt in the calf
Hold 30 seconds, 3 reps

Key Principles (Evidence-Based)

Principle	Evidence
Resistance + aerobic training is most effective	Harrison's 22E, 2025
High-intensity strengthening is no better than moderate	Harrison's 22E, 2025
Activities that worsen pain should be avoided	Harrison's 22E, 2025
Adherence is the biggest challenge — pick exercises you enjoy	Harrison's 22E, 2025
Weight loss amplifies the benefit of exercise in knee OA	Harrison's 22E, 2025

When to See a Doctor or Physiotherapist

Pain is severe, sudden, or associated with swelling/locking
Pain follows an injury (fall, twist, impact)
Symptoms persist beyond 4–6 weeks despite exercise
You've had knee surgery

A physiotherapist can individualize your program — this makes exercises significantly more effective than generic routines.

Sources: Harrison's Principles of Internal Medicine 22E (2025, McGraw Hill Medical); Miller's Review of Orthopaedics 9th Ed. Recent systematic review support: Patellofemoral Pain Best Practice Guide (Br J Sports Med 2024)

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