Elbow Pain During Push-Ups and Extension: NIR LED Support for Tricep Tendon Issues

A survey of recreational weight trainers conducted by Colliander & Tesch (1990, European Journal of Applied Physiology) found that elbow complaints accounted for approximately 12% of all training-related musculoskeletal issues — ranking third behind shoulder and knee problems. Among push-up and bench press practitioners specifically, posterior elbow pain at the triceps brachii insertion is a frequently reported but widely mismanaged issue: many trainees either push through the pain, exacerbating tendon pathology, or stop pressing entirely, allowing tricep strength to decline. Neither extreme serves long-term training health. This guide explains the anatomy and mechanisms behind push-up related elbow pain, describes how near-infrared (NIR) LED photobiomodulation may support tissue comfort and recovery, and offers a practical load-management framework for staying active while the tendon heals. Related: Burning Shoulder Pain: Causes and NIR Management

Posterior Elbow Anatomy and Pain Mechanisms

The triceps brachii is a three-headed muscle (long, medial, and lateral heads) that attaches via a common tendon to the olecranon process of the ulna — the bony prominence at the back of the elbow. Its primary function is elbow extension; secondary functions include shoulder extension (long head) and dynamic stabilization of the glenohumeral joint during loaded overhead movements.

Posterior elbow pain during push-up-type movements can arise from several structures:

• Triceps tendinopathy: Degenerative or reactive change in the triceps tendon insertion at the olecranon. Most common in trainers who perform high volumes of elbow extension under load (bench press, overhead tricep extensions, dips).
• Olecranon bursitis: Inflammation of the bursa posterior to the olecranon tip, producing a visible fluid sac and tenderness directly over the bone rather than the tendon attachment.
• Olecranon impingement: During full extension, the olecranon tip contacts the posterior fossa of the humerus — in high-load pressing with elbow hyperextension, this bony contact can produce posterior elbow pain, particularly in individuals with tight posterior capsules.
• Medial collateral ligament stress: During the eccentric descent of a push-up or bench press, valgus stress on the elbow loads the MCL. In individuals with high training volumes or valgus elbow alignment, this can produce medial-sided pain that radiates posteriorly.

The most common presentation in recreational trainers is tricep tendinopathy — pain located 1–2 cm proximal to the olecranon tip, reproduced by resisted elbow extension, and exacerbated by loading in the fully extended position.

Why Push-Ups and Extension Movements Cause Elbow Pain

Push-ups and bench press create a specific mechanical environment that stresses the triceps tendon insertion:

1. Compressive load at insertion: During the lock-out phase of a push-up (full elbow extension), the triceps tendon wraps around the olecranon tip, creating a compressive force between the tendon and the bone beneath it. Compression at the enthesis (bone-tendon interface) is the primary driver of reactive tendinopathy and accounts for why pain is typically worst at full extension, not during the mid-range eccentric descent.
2. Volume accumulation: Tendons adapt more slowly to load than muscle. A rapid increase in push-up volume — even without changing technique — can outpace the tendon's remodeling capacity, leading to reactive tendinopathy within 2–4 weeks of a volume spike.
3. Elbow flare-out: When the elbows are excessively abducted during a push-up (pointing outward rather than tracking at approximately 45–60° from the torso), the triceps long head is placed in a mechanically disadvantaged position, increasing load per unit cross-sectional area at the insertion.
4. Poor shoulder position: Anterior pelvic tilt or protracted scapulae during push-ups increase glenohumeral joint demand on the triceps long head, transferring load proximally and increasing overall insertion stress.

Tricep Tendinopathy: Reactive to Degenerative

Tendinopathy exists on a continuum (Cook & Purdam, 2009, British Journal of Sports Medicine), not as a binary healthy/injured state:

Most push-up–related elbow pain presents in the reactive stage and responds well to load modification within 2–4 weeks. Chronically painful elbows in competitive athletes often show tendon disrepair or degenerative changes on ultrasound, requiring a longer rehabilitation timeline (3–6 months) and progressive heavy eccentric loading.

NIR Photobiomodulation for Tendon Tissue

Tendon tissue has a notably poor blood supply compared to muscle — the triceps tendon receives most of its nutrition via diffusion from the peritenon and intratendinous vessels, making it slow to respond to both injury and therapeutic interventions. NIR photobiomodulation addresses several physiological aspects relevant to tendon pathology:

1. Tenocyte metabolic support: Tenocytes — the resident cells of tendons — undergo mitochondrial stress during reactive tendinopathy phases. NIR photons absorbed by cytochrome c oxidase (CCO) in tenocyte mitochondria may restore ATP production capacity, supporting the protein synthesis activity necessary for collagen turnover and remodeling. Hamblin & Demidova (2006) documented a 20–40% increase in cellular ATP output at fluences of 2–10 J/cm².
2. Collagen synthesis stimulation: de Freitas & Hamblin (2016) demonstrated that NIR-stimulated fibroblasts increase Type I collagen synthesis — the primary structural collagen of tendons. During the tendon disrepair and degenerative stages, improved collagen organization is a primary rehabilitation goal.
3. Peritendinous blood flow enhancement: NO released from CCO and oxyhemoglobin under NIR exposure improves microvascular perfusion in the peritendinous tissue — enhancing the nutrient and oxygen delivery that avascular tendons depend on from their peritenon circulation.
4. Anti-inflammatory modulation: During reactive phases, NIR-mediated NF-κB down-regulation may reduce the local inflammatory signaling that drives pain sensitization, without fully suppressing the adaptive response that tendons need for remodeling.

Current clinical evidence for NIR photobiomodulation specifically on tricep tendinopathy is limited. Broader literature on NIR for Achilles tendinopathy, patellar tendinopathy, and lateral epicondylitis (all sharing similar tendon pathophysiology) shows consistent trends toward reduced pain and improved function, supporting the physiological rationale for posterior elbow application.

NIR Protocol for Posterior Elbow

Application technique matters for elbow NIR use. Position the device over the posterior elbow with the arm in a comfortable extended or slightly flexed position (10–20° flexion), targeting the triceps tendon insertion area 1–3 cm proximal to the olecranon tip:

Apply the device after — not instead of — therapeutic exercise. The mechanical load stimulus from exercise drives collagen remodeling; NIR supports the cellular environment in which that remodeling occurs. Using NIR as a substitute for loading will not resolve tendinopathy.

Load Management and Exercise Modification

The most effective intervention for reactive tricep tendinopathy is immediate load modification — not complete rest. Complete unloading of a tendon causes rapid type I collagen degradation and reduces tendon stiffness, making return to full training harder and slower than a managed reduction-and-progression approach.

Practical load management strategies:

• Reduce volume before intensity: If you were performing 4 sets of 20 push-ups daily, reduce to 3 sets of 10 rather than reducing to a lighter exercise variation. Tendons respond to load magnitude and volume independently.
• Avoid end-range compression: Stop push-up repetitions 5–10° before full lock-out during the reactive phase. This eliminates the compressive force at the olecranon without abandoning the exercise entirely.
• Eccentric bias during sub-acute phase: Eccentric (lengthening) loading at controlled velocity is the most evidence-supported exercise modality for tendinopathy remodeling. Slow eccentric tricep extensions — 3 seconds descent, no active concentric — performed at moderate load (6–8 RPE) 3×15 daily is a practical starting point for the disrepair phase.
• Technique correction: Narrow elbow position during push-ups (45–60° from torso rather than 90°) reduces tricep insertion compressive load by approximately 20%. This is a permanent technical change worth making regardless of pain status.
• Progressive return to full loading: Increase weekly push-up volume by no more than 10% per week once pain is consistently below 3/10 during exercise and resolves within 24 hours post-session.

CIRIUS for Elbow Wellness

For trainees managing posterior elbow discomfort alongside a continued pressing program, a reliable and easy-to-position NIR device makes post-session recovery care more consistent. The CIRIUS NIR LED healthcare device emits dual 660 nm and 850 nm wavelengths from a compact panel that can be positioned over the posterior elbow without requiring a specialized stand or an awkward arm position.

The 660 nm wavelength targets the superficial triceps tendon, while 850 nm reaches the deeper tenocyte layers within the tendon substance and the peritendinous vasculature. The auto-timer ensures session length consistency even when used after a fatiguing pressing session. CIRIUS is a wellness and comfort support device; it is not a substitute for a structured load management program or medical evaluation of elbow pathology.

Precautions and Red Flags

Most push-up–related posterior elbow pain responds to load modification within 2–6 weeks. However, the following signs warrant medical evaluation rather than self-management:

• Acute tendon rupture: Sudden sharp pop during a maximal-effort press, followed by visible deformity (bunched muscle belly), sudden complete loss of extension strength, and bruising. This is a medical emergency requiring orthopedic assessment within 24–48 hours.
• Joint effusion: Visible swelling of the elbow joint (not just the olecranon bursa) accompanied by warmth and restricted range of motion suggests intra-articular pathology (loose body, osteochondral lesion) or infection — seek evaluation.
• Neurological symptoms: Pain radiating into the ring and small fingers, numbness, or tingling may indicate ulnar nerve entrapment at the cubital tunnel rather than tendon pathology — these have different management requirements.
• Failure to respond to 6–8 weeks of load management: If pain does not improve with structured load modification, imaging (ultrasound or MRI) and physiotherapy assessment should guide further management.

For NIR device use: never apply to open skin, active rashes, or areas of suspected infection. Do not use NIR as a reason to continue training through pain that would otherwise indicate rest — comfort support is not the same as tissue repair.