Can a light device help soldiers heal broken bones faster?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * between ages 17-64 (inclusive) years old * Currently completing Advanced Individual Training (AIT) training at Fort Sam Houston and at least 6 weeks prior to graduation * Clinical diagnosis of metatarsal or medial tibial bone stress injury/stress fracture (unilateral or bilateral) by a healthcare provider based on accepted diagnostic criteria, with diagnostic imaging confirmation * Able to read and understand English language for consent purposes * Able to commit to study intervention and follow-up Exclusion Criteria: * Stress fracture to tibia that is not medial (e.g., anterior) or any location other than 5th metatarsal or medial tibia * Has already become a severe non-union bone stress injury/fracture * Received dry needling within the past 4 weeks * Received Platelet Rich Plasma (PRP) injection, corticosteroid injection, or prolotherapy within the past 3 months * Diagnosis of neuropathy affecting sensation to pain * Current or chronic sciatica (lumbosacral radiculopathy) resulting in chronic or intermittent lower extremity pain, numbness, or tingling (all below the knee) * Current or previous diagnosis of eating disorder (e.g., bulimia nervosa, anorexia nervosa, disordered eating, or other eating disorder not specified) * Diagnosis of porphyria (light induced allergy) or photosensitive eczema * Diagnosis of autoimmune disease (e.g., Lupus) * Albinism * Current use of anti-inflammatory steroids due to increased risk of Bone Stress Injury (BSI) with the past two weeks * Current use of medications associated with sensitivity to heat or light in the past five days (e.g., amiodarone, chlorpromazine, doxycycline, hydrochlorothiazide, nalidixic acid, naproxen, piroxicam, tetracycline, thioridazine, voriconazole) * Previous or current (within the past 2 years) use of Depo Provera * Current use of pacemaker * Tattoo in the area of treatment due to sensitivity to Photobiomodulation Therapy (PBMT) * Concurrent participation in another research study receiving treatment for metatarsal or medial tibial bone stress injury/stress fracture * Currently pregnant or plan to become pregnant during intervention period (safety of PBMT not established in pregnancy) * Current diagnosis or symptoms of amenorrhea (≥ 6 months without a menstrual period) or oligomenorrhea (only 4-9 menstrual periods in a year)