Knee Osteoarthritis

Explanation of Diagnosis

Knee osteoarthritis is a common, long-term wear-and-tear condition where the joint cartilage in the knee gradually deteriorates. Over time, the knee joint surfaces can become less smooth, and the body often responds with inflammation, bone spur formation, and changes in how the joint moves. This usually happens slowly over years, often related to age, prior injuries, repetitive stress, weight-bearing load, and genetics. Common symptoms include knee pain with walking or stairs, stiffness (especially after rest), reduced range of motion, and sometimes swelling or a “grinding” feeling.

Specific Work Modifications

• If you stand for long periods, shift positions frequently and consider a supportive anti-fatigue mat.
• If you sit for long periods, add short standing or walking breaks every 30 to 60 minutes to reset stiffness.
• Choose chairs and desk heights that keep your hips slightly higher than your knees to reduce knee strain.
• Avoid carrying heavy loads up and down stairs; use carts, ask for assistance, or split loads into smaller trips.
• Limit repetitive kneeling or squatting at work; use tools with long handles or raise your work height when possible.
• Use supportive footwear at work and replace worn shoes, since inadequate support can increase knee stress.

Specific Activity Modifications

• Reduce impact activities such as running, jumping, and high-step aerobics during flare-ups and on high-pain days.
• For cardio, prioritize low-impact options like cycling (with comfortable seat height), swimming, water walking, or an elliptical if tolerated.
• When climbing stairs, use a slower pace and hold a rail; consider taking breaks rather than pushing through pain.
• Modify strength training by using partial ranges at first (within a pain-friendly limit) and avoid deep knee bends early on.
• If your hobby involves gardening, tiling, or yard work, use kneeling pads with short sessions, or alternate with standing tasks to avoid prolonged knee flexion.
• Aim to keep activities distributed across the week rather than doing long, intense sessions that provoke symptoms.

Recommended Supplements

• Glucosamine sulfate 1500 mg once daily may help some people with osteoarthritis symptoms, with effects that are usually gradual; evidence is mixed, so monitor your response.
• Chondroitin sulfate 800 to 1200 mg once daily may reduce pain for some people; it’s often used alone or combined with glucosamine.
• Omega-3 fish oil about 1000 mg per day of combined EPA/DHA may help calm inflammation-related discomfort in some individuals.
• Curcumin (turmeric extract) 500 to 1000 mg once or twice daily may provide mild symptom relief for some people; choose a reputable product.

Recommended Nutrition and Hydration

Diet Recommendations

• Choose a Mediterranean-style pattern with vegetables, fruit, legumes, whole grains, nuts, and olive oil, which can support an anti-inflammatory balance.
• Maintain adequate protein intake (for example from fish, poultry, eggs, dairy, tofu, or beans) to support muscle that helps offload the knee.
• If weight loss is needed, gradual reduction in calorie intake can decrease knee joint load and often improves pain with activity.
• Limit highly processed foods and added sugars, which can worsen overall inflammation and energy balance.

Hydration Tips

• Drink enough fluids to keep your urine pale yellow, especially around exercise days.
• If you have swelling or cramps, discuss personalized fluid and electrolyte needs with your clinician rather than self-prescribing.

Home Exercise Prescription

Perform these exercises about 4 to 6 days per week, keeping movements controlled and within a pain-friendly range.

1. Seated Knee Extension: Sit with feet on the floor; slowly straighten the knee until you feel gentle muscle effort, then lower slowly; repeat 10 to 15 times per side.
2. Straight Leg Raise: Lie on your back, tighten the thigh, and lift the straight leg about 12 to 18 inches (or as tolerated), then lower slowly; repeat 8 to 12 times per side.
3. Heel Slides for Range of Motion: Sit or lie down; gently slide your heel toward your buttocks to the comfortable limit, then slide back; repeat 10 to 15 times.
4. Calf Stretch Against a Wall: Keep the knee straight and heel down; lean forward until you feel a stretch in the calf, hold without bouncing; hold 30 to 45 seconds, repeat 2 to 3 times per side.
5. Glute Bridge: Lie on your back with knees bent; lift hips by tightening glutes, pause briefly, then lower slowly; repeat 8 to 12 times.
6. Side-Lying Hip Abduction: Lie on your side, keep toes pointing forward, lift the top leg slightly and slowly, then lower; repeat 8 to 12 times per side.

Helpful Books

• "The Knee Osteoarthritis Exercise Guide" written by Boyd and colleagues
• "Managing Pain" written by Nicole Sachs
• "Pain Free" written by Pete Egoscue
• "The Sports Medicine Patient Advisor" written by Scott W. H. B. Kahan and others