Summer increases physical activity: hiking, cycling, swimming, walks on the beach. And with it, inquiries about knee pain also increase. If you notice discomfort when going down stairs, walking downhill, or after a hike, you are not alone. In this guide, we explain why the knee hurts in summer, what makes it worse, and what you can do at home to relieve it and stay active all season.
Why summer is the time of greatest risk for knees
The knee is the largest and most complex joint in the human body, and also one of the most vulnerable. During the summer, several risk factors converge that do not exist at other times:
- Sudden increase in activity: going from winter inactivity to hiking, the beach, and sports without a gradual adaptation overloads the cartilage and tendons of the knee.
- Uneven surfaces: walking on sand, stones, or mountain trails generates lateral forces on the knee that flat surfaces do not produce.
- Inadequate footwear: flat flip-flops and unsupportive espadrilles increase tension on the knee joint and the plantar fascia.
- Dehydration: the synovial fluid that lubricates the knee is affected by insufficient hydration, increasing joint friction.
- Heat and inflammation: high temperatures can exacerbate inflammatory processes in already sensitive joints, especially in people with osteoarthritis or chondromalacia.
The most common causes of knee pain in summer
Iliotibial band syndrome
Typical of runners and cyclists. The pain appears on the outside of the knee after a while of activity. It usually worsens when going down slopes or repeatedly bending the knee.
Patellofemoral chondromalacia (runner's knee)
Degeneration of the cartilage under the kneecap, causing a dull and diffuse pain around the patella that intensifies when going up and down stairs, kneeling, or sitting for a long time with bent knees.
Patellar tendinitis
Inflammation of the patellar tendon, very common in jumping sports (volleyball, basketball, hiking with elevation changes). The pain is located just below the patella and increases with exercise.
Knee osteoarthritis
Wear and tear of the joint cartilage is more symptomatic with heat and humidity. Older people or those with overweight notice a clear worsening in summer, especially after activities such as walking on the beach.
Sprain or ligament strain
Poor support on uneven terrain can cause a forced twist of the knee. The pain is immediate and is accompanied by swelling within a few hours.
How to relieve knee pain at home
Acute phase (first 48-72 hours)
If the pain appears suddenly after exertion, apply the RICE protocol:
- Rest: avoid activities that trigger the pain for 24-48 hours.
- Ice: apply ice wrapped in a cloth for 15-20 minutes every 2-3 hours for the first 48 hours.
- Compression: use a compression knee brace to reduce inflammation and provide stability to the joint.
- Elevation: keep the leg elevated when sitting or lying down to facilitate venous return.
Subacute phase and maintenance
Once the acute phase has passed, the goal is to strengthen the supporting muscles and protect the joint during activity:
- Always wear a compression knee brace during high-impact activities or on uneven terrain.
- Always warm up before starting: 5-10 minutes of light walking and joint mobility.
- Stretch the quadriceps, hamstrings, and calves after finishing.
- Constant hydration: at least 2 liters of water a day in summer.
Why a compression knee brace makes a difference
Compression acts on three simultaneous mechanisms that simple rest does not achieve:
- Reduces inflammation by limiting the excessive accumulation of synovial fluid.
- Improves proprioception — the knee brace activates the joint's position receptors, reducing the risk of another involuntary twist.
- Stabilizes the patella during movement, especially during descents and changes of direction.
The BronFit Compression Knee Brace with Silicone Springs also adds two lateral silicone springs that hold the patella laterally, something especially useful for chondromalacia and sprains with instability. It is not a rigid bandage — it is completely flexible and can be worn all day during summer activities. If you want to compare this model with other types of knee braces (with lateral stabilizers, for osteoarthritis, for high-impact sports), check out our complete guide to compression knee braces.
Exercises to strengthen the knee and prevent injuries in summer
The quadriceps muscle is the main protector of the knee. Strengthening it gradually is the best long-term prevention:
- Partial squats: lower only to 45° — without letting the knee go past the toes. 3 sets of 12 repetitions.
- Seated quadriceps extension: with a rolled-up towel under the knee, extend the leg until horizontal. Hold for 5 seconds. 3 sets of 15.
- Glute bridge: lying on your back, raise your hips by squeezing your glutes. 3 sets of 15. Strengthens the posterior chain that unloads the knee.
- Lateral march with elastic band: activates the gluteus medius and stabilizes the knee in the frontal plane. 2 sets of 20 steps in each direction.
- Step-up on a step: go up and down a 15-20 cm step in a controlled manner. 3 sets of 12 repetitions per leg.
Important: if any of these exercises cause acute pain, stop and consult a physical therapist.
When to see a doctor for knee pain?
Most summer knee pains resolve in 1-2 weeks with relative rest, compression, and physical therapy. But there are signs that require urgent medical attention:
- Significant swelling that appears within minutes after the impact or twist
- Inability to bear weight on the leg
- Visible deformity or loud snap at the time of injury
- Pain that does not improve or worsens after 72 hours of rest
- Feeling of instability or that the knee "gives out"
Frequently asked questions about knee pain in summer
Can you go hiking with knee pain?
It depends on the cause and intensity of the pain. With mild discomfort, hiking on flat terrain with a compression knee brace and trekking poles is possible. If there is pain when going down slopes or instability, it is better to rest and consult before returning to the mountains.
Is swimming good for the knee?
Yes, swimming is one of the best exercises for injured knees because it eliminates impact. Freestyle and backstroke are the safest. Avoid breaststroke if you have pain on the inside of the knee.
Which knee brace is best for walking in the mountains?
For hiking, the knee brace with lateral silicone springs offers the best combination of compression, patellar stability, and freedom of movement. The lateral springs are especially useful on descents, which are the time of greatest load for the knee.
Is heat or cold better for knee pain?
In the first 48-72 hours after an acute injury: cold. From that point on, for chronic pains such as osteoarthritis: heat. Heat improves circulation and relaxes the periarticular muscles. For mixed pains, the cold-heat contrast can be very effective.
Do you wear the knee brace all day or only when exercising?
In the acute phase, you can wear it during the day to reduce inflammation, taking it off when sleeping. Once improved, use it mainly during physical activity. It is not recommended to wear it permanently in the long term because it can weaken the supporting muscles.
Is it normal for the knee to crack without pain?
Joint clicks or cracks without associated pain are usually benign and are due to gas bubbles in the synovial fluid or the sliding of tendons. If they are accompanied by pain, swelling, or limited movement, it is worth consulting a doctor.
Conclusion
Summer does not have to mean giving up physical activity because of the knee. With proper prevention, the correct equipment, and well-applied first aid, most summer pains resolve quickly and without consequences. Discover our selection of knee braces and joint health products at Bronmart.
