Red Light Therapy for Shin Splints: What the Evidence Shows
Red light therapy for shin splints works best as an add-on to rest and a gradual return to running, not as a way to keep training through the pain. The closest controlled evidence comes from light on other lower-leg tissues, where pain fell more than with placebo. Below: what the research shows, how to tell shin splints from a stress fracture, where light fits next to ice and rest, recovery timelines, shockwave, warning signs and a panel set-up for the inner shin.
Key takeaways
- Shin splints, known medically as medial tibial stress syndrome, affect 5% to 35% of runners. Newman, 2013
- A 2022 review of 18 trials with 784 people found lower-leg tendon and heel pain 14.98 mm lower on a 100 mm scale with laser light at recommended doses than with placebo. BMJ Open, 2022
- In the same review, light added to exercise lowered pain by 18.15 mm more than exercise alone, straight after treatment. BMJ Open, 2022
- In a 2016 pilot of 830 nm LED light on university athletes' injuries, mean return to play was 9.6 days against 19.23 days expected, without a control group. Foley, 2016
- Orthopaedic surgeons advise being pain-free for at least 2 weeks before returning to exercise. AAOS
Does red light therapy for shin splints help?
The closest evidence is encouraging: light on the Achilles, the patellar tendon and the sole of the foot lowered pain more than placebo, and more again when added to exercise. Shin splints themselves have little light research, so treat light as an add-on to rest and a graded return.
Shin splints are pain along the shin bone, the tibia. Mayo Clinic The muscles and tendons that attach along its inner edge belong to the same family of tissues as those studied below.
| Study | What it looked at | Main finding |
|---|---|---|
| BMJ Open, 2022 | 18 trials, 784 people: 11 plantar fasciitis, 5 Achilles, 2 patellar tendon | Pain 14.98 mm lower than placebo at recommended doses |
| BMJ Open, 2022 | Light added to exercise | Pain 18.15 mm lower straight after, 19.67 mm lower at 9 weeks |
| Foley, 2016 | 830 nm LED, 395 sports injuries in university athletes | Return to play 9.6 days against 19.23 days expected |
No adverse events were reported in any trial in the 2022 review. BMJ Open, 2022 Those trials used lasers held on the skin at a few points.
The 2016 pilot covered sprains, strains, ligament injuries, tendonitis and bruising, with a mean of 4.3 sessions per injury. Foley, 2016 Pain fell by up to 6 points within 2 to 6 sessions. The authors note it had no control group. Our guide to red light therapy for athletes covers the same study.
A small 1994 laser trial in 49 army conscripts, who were all resting from running and marching, found no extra difference from placebo at 14 days. Nissen, 1994
Who gets shin splints most: runners, dancers or military recruits?
Runners, dancers and military recruits carry the highest risk, because all three load the lower leg hard and often. In recruits, a 2024 review reported rates of 35% to 56%.
The review covered military basic training. Alessa, 2024 Mayo Clinic lists these risk factors: Mayo Clinic
- New runners: starting a running programme.
- Fast build-ups: rapidly increasing how long, how often or how hard you train.
- Surfaces: hills, uneven ground or hard surfaces.
- Feet: flat feet or high arches.
Cleveland Clinic adds long hours standing, poor shoes, low vitamin D and low bone density. Cleveland Clinic For recruits, shock-absorbing insoles have the strongest evidence for prevention. Alessa, 2024
Is it shin splints or a stress fracture?
Shin splints usually cause tenderness spread along more than 5 cm of the inner shin bone, while a stress fracture tends to hurt at one point under 5 cm. Pain that becomes constant, or is there at rest, needs a doctor before you try light.
StatPearls uses this 5 cm rule to separate the two. StatPearls Mayo Clinic notes that pain which becomes constant may be a stress reaction or stress fracture. Mayo Clinic
- Spread-out tenderness: more than 5 cm along the inner edge points to shin splints.
- Point tenderness: one small sore spot under 5 cm points to a possible stress fracture.
- Imaging: an X-ray is often normal early on, and MRI can show small stress fractures that X-rays miss.
The imaging points come from StatPearls and Cleveland Clinic. Cleveland Clinic If a stress fracture is found, use light only after your doctor agrees, over intact skin, and never remove a boot, brace or splint to do it.
Should the light go on the inner edge or the front of the shin?
Aim at the sore stretch you can press, which for most people is the inner edge of the shin bone. Some feel it more at the front of the lower leg, so light whichever area is tender.
Orthopaedic guidance places the pain along the inner edge of the tibia. AAOS The NHS describes pain and tenderness along the front of the lower leg. NHS
- Bare skin: take off socks, sleeves and tape over the area.
- Compression sleeves: wear them between sessions if you like, not during, since fabric blocks most of the light.
- Whole stretch: turn the leg so the full tender length faces the panel, not one spot.
Which wavelength suits red light therapy for shin pain: red or near-infrared?
Near-infrared was the light used in the closest trials, at 780 to 860 nm, 830 nm and 904 nm. Red light can run alongside it, as in our athletes guidance.
The 2022 review based its recommended doses on 780 to 860 nm and 904 nm lasers. BMJ Open, 2022 The athlete pilot used 830 nm LEDs. Foley, 2016
For red light therapy for shin pain, run the near-infrared channels high with red on, and leave the 480 and 590 nm channels off.
What settings did the light trials use?
The studied light was low power, held on the skin at a few points, a few times a week over several weeks, always next to rest or exercise. Those doses are per point and do not convert into panel minutes.
| Source | Light | Dose | Sessions | Placement |
|---|---|---|---|---|
| BMJ Open, 2022 | 780 to 860 nm laser | At least 4 J per point, 2 to 3 points | Varied, follow-up 4 to 12 weeks | Contact on tendon or fascia |
| BMJ Open, 2022 | 904 nm laser | At least 2 J per point, 2 to 3 points | Varied | Contact on tendon or fascia |
| Foley, 2016 | 830 nm LED | Not given in the abstract | 2 to 6 per injury, mean 4.3 | On the skin over the injury |
To stay closer to the studied range, turn each channel down from 100%, set a shorter timer, or step back towards 12 inches. Our tendonitis article covers the same review in more detail.
Is red light better than ice for shin splints?
No, ice stays the standard first step and light does not replace it. Light fits the weeks of rest and rebuilding that follow.
The NHS advises ice wrapped in a towel for up to 20 minutes every 2 to 3 hours, with paracetamol or ibuprofen gel or tablets. NHS Mayo Clinic suggests 15 to 20 minutes, 3 to 4 times a day for several days. Mayo Clinic
- Fresh knocks: keep heat, including a warm panel, off a fresh injury for the first 2 to 3 days.
- Same skin: do not ice and light the same area back to back; let the skin return to its normal temperature first.
- Medicines: our precautions rule out photosensitising medication, so if you take ibuprofen, naproxen or any other medicine, check with your pharmacist or doctor before using the device.
Can you keep running with shin splints if you use red light?
No, the guidance is to stop the activity causing the pain and switch to lower-impact exercise. Light belongs in that rest and rebuild phase, not in running through it.
Mayo Clinic says to rest from painful activity, "But don't stop moving." Mayo Clinic Swimming, cycling and water running are suggested meanwhile.
- Time away: avoid intense activity for up to a few weeks. Cleveland Clinic
- Build-up: increase impact activity by about 10% a week. Mayo Clinic
- Shoes: replace cushioned running shoes every 350 to 500 miles, or 560 to 800 km.
- Too soon: returning early can bring the pain back and raise stress fracture risk.
Once you are back running, a short session on the legs before training fits our before or after workout guide.
How long do shin splints take to heal, and where does light fit?
Most shin splints get better within a few weeks of rest and self-care. Stubborn cases took about 2 to 3 months in trials, so light sits alongside a long, graded return.
| Phase | What guidance says | Where light fits |
|---|---|---|
| First days | Stop the painful activity; ice up to 20 minutes every 2 to 3 hours (NHS) | Ice first; no heat on a fresh knock for 2 to 3 days |
| Rest weeks | Several weeks off the causing activity, with swimming, cycling or an elliptical (AAOS) | Sessions 3 to 5 times a week on the sore stretch |
| Before running | Pain-free for at least 2 weeks (AAOS) | Keep a daily pain score out of 10 |
| Return | Shorter, less often, lower intensity; about 10% more each week (AAOS, Mayo) | A short session on the legs before training |
| Stubborn cases | About 2 to 3 months to run 18 minutes pain-free in trials | Stays an add-on to a physio-led plan |
The NHS says shin splints "usually get better within a few weeks". NHS In a study of 42 athletes, a graded running programme alone took 91.6 days to full recovery. Moen, 2012 With shockwave added, it took 59.7 days.
A 2013 review found research had not shown anything clearly better than prolonged rest. Newman, 2013
Is red light or shockwave better for shin splints?
Neither is settled: shockwave has more shin splints studies, but its results are mixed too. Shockwave is a clinic treatment, while light is something you can use at home alongside rest.
- Shockwave, cohort: success in 76% with home training plus shockwave, against 37% with home training alone, at 15 months. Rompe, 2010
- Shockwave, sham-controlled pilot: 28 adults; only pain on pressing was lower, by 1.1 points out of 10. Newman, 2017
- Light: the closest evidence is the lower-leg tendon review, with pain 14.98 mm lower than placebo.
A 2013 review of 11 shin splints trials found none free enough from bias to recommend any treatment, and called shockwave "the most promising". Winters, 2013 Rest and a graded return stay the base, whatever you add.
Which shin pain needs a doctor first?
See a doctor before trying light if the pain is severe, constant or at rest, sits at one point, or does not improve with rest, ice and painkillers. Numbness, tingling or marked swelling also need checking first.
- Urgent advice: call NHS 111 if the pain is severe or you have injured your shin. NHS
- Emergency care: a crack you heard, a misshapen leg, or skin that turns blue, grey or cold.
- Not improving: see a doctor if rest, ice and over-the-counter painkillers do not help. Mayo Clinic
- Swelling or nerves: swelling, numbness or tingling, or pain lasting more than a week or two after rest. Cleveland Clinic
- Other causes: severe swelling, redness, cramping or burning in the calf, or a numb or tingling foot point away from shin splints. StatPearls
Doctors may order a bone scan, MRI or a pressure test to rule out a stress fracture, tendinitis or compartment syndrome. AAOS
How do you use a Kivorla panel for shin splints?
Hang the panel low or stand it on the floor, sit or stand with one lower leg level with it, and turn the inner shin towards it at about 6 inches. Run near-infrared high with red on for 10 to 15 minutes per leg, three to five times a week, and judge it at three to four weeks.
The 9-Spectrum Red Light Therapy Panel carries 480, 590, 630, 660, 670, 810, 830, 850 and 1060 nm, each dimmable from 1 to 100%. Its 810, 830 and 850 nm channels sit inside the 780 to 860 nm range of the closest trials.
- Position: hang it low on a door or wall with the included door hook, pulley, hanging cables and screws, or stand it upright on the floor.
- Aim: turn the knee slightly outward so the inner edge of the shin faces the panel, on clean, bare skin.
- Distance: about 6 inches, stepping back towards 12 inches if it feels hot.
- Channels: 810, 830, 850 and 1060 nm high; 630 and 660 nm on; 480 and 590 nm off or at their lowest; continuous light.
- Timer: 10 to 15 minutes per leg, set with the controller from 1 to 30 minutes. If no time is set, the panel stops at 5 minutes.
- Eyes: wear the included goggles from before the light comes on until the timer stops. See our guide to red light therapy goggles.
- Log: score shin pain out of 10 after the same everyday test, such as a brisk walk.
The surface stays at or below 40°C, so do not touch it. Warm is fine; if it feels hot, dim the near-infrared or step back. Leave at least 6 hours between 30-minute sessions. The face mask is a full-face shell and is not designed for legs.
Standard shipping to the US, UK and Germany is free. Read the precautions before ordering: they rule out use in pregnancy, with light-triggered seizures, a thyroid condition, photosensitising medication, broken skin or Fitzpatrick skin types V or VI. Under our return and refund policy, returns are accepted within 30 days: an unopened device with its seals intact is refunded less a 10% restocking fee, and an opened device that is undamaged and complete is refunded less 20%.
Kivorla devices are general wellness devices, not medical devices, and are not intended to treat shin splints or stress fractures. See a doctor or physiotherapist for pain at one spot, pain at rest or pain that does not ease with rest, and keep the rest and return plan they advise.