Injury Modifications

Achilles tendinopathy is degeneration of the Achilles tendon, the largest tendon in the body connecting the calf muscles to the heel. It affects up to 10% of recreational runners. There are two distinct types with different treatment: - Mid-portion (2-6cm above heel): Most common, responds well to eccentric loading - Insertional (at heel bone): Different treatment, do NOT do eccentrics over edge The condition develops from repetitive overload exceeding the tendon's capacity to repair. It is a failed healing response, not inflammation (hence "-opathy" not "-itis"). Recovery requires progressive loading, not rest.

General Principles

• •Tendons respond to progressive loading, not complete rest
• •Mid-portion: Eccentric heel drops are evidence-based first-line treatment (Alfredson protocol)
• •Insertional: Do eccentrics on FLAT surface only, loading over edge is contraindicated
• •Complete rest often makes tendons weaker and more susceptible to injury
• •Expect 3-6 months for full recovery, tendons heal slowly
• •Pain during exercise is acceptable if it stays below 5/10 and does not worsen

Recommended Exercises

Calf strains are tears in the muscle fibers of the gastrocnemius or soleus, the two primary muscles of the calf complex. They are the 3rd most common running injury, affecting approximately 7-13% of runners annually. There are two distinct presentations: - Gastrocnemius strain: Typically acute onset during sprinting or hill work. Pain in the upper/middle calf, often described as "being kicked." - Soleus strain: More insidious onset, associated with higher volume training. Deeper, lower calf pain that is harder to localize. The calf-Achilles complex absorbs 6-8x body weight during running. Unlike Achilles tendinopathy (tendon degeneration), calf strains are muscle fiber tears that follow a more predictable healing timeline.

General Principles

• •Acute phase (first 48-72 hours): protect, ice, compress, elevate
• •Avoid aggressive stretching in the acute phase, it can worsen the tear
• •Progressive loading is key to recovery, tendons and muscles heal stronger with load
• •Return timeline: Grade 1 = 1-2 weeks, Grade 2 = 2-4 weeks, Grade 3 = 4-8 weeks
• •Reinjury risk is highest in the first 2 weeks after return to running
• •Address contributing factors: footwear, training load spikes, calf weakness

Recommended Exercises

Hamstring strains are tears in the muscle fibers of the hamstring group (biceps femoris, semitendinosus, semimembranosus). They occur during high-speed running, sudden acceleration/deceleration, or overstretching. There are two main types: - Acute strain: Sudden injury during activity (sprinting, lunging) - Proximal hamstring tendinopathy: Chronic overuse at the sit bone (ischial tuberosity) Hamstring injuries have HIGH recurrence rates (up to 30%) if return is rushed. Adequate rehabilitation and progressive loading are essential.

General Principles

• •Hamstring reinjury rate is very high, do not rush return
• •Progressive loading (eccentrics) builds tissue tolerance
• •Nordic curls are the gold standard for prevention and rehab
• •Hip flexibility affects hamstring load during running
• •Adequate warm-up before speed work is essential
• •Return when you can sprint at 100% without fear or hesitation

Recommended Exercises

Hip and glute injuries in runners encompass several conditions affecting the hip joint, surrounding muscles, and associated structures. This file covers the most common running-related hip/glute issues: - Hip flexor strain: Iliopsoas or rectus femoris strain from hip flexion - Piriformis syndrome: Buttock pain with sciatica-like symptoms - Greater trochanteric pain syndrome (GTPS): Lateral hip pain, formerly "bursitis" - Gluteal tendinopathy: Degeneration of glute tendons at greater trochanter Proper diagnosis is important as treatment differs between conditions.

General Principles

• •Hip weakness (especially glute medius) underlies many running injuries
• •Piriformis stretching helps piriformis syndrome but diagnosis matters
• •For GTPS: Avoid sleeping on affected side, don't stretch ITB aggressively
• •Address proximal strength to prevent distal injuries
• •Neural mobilization may help piriformis syndrome with sciatica symptoms

Recommended Exercises

Iliotibial band syndrome (ITBS) is one of the most common overuse injuries in runners, causing pain on the outside of the knee. The IT band is a thick band of fascia running from the hip to below the knee. Modern understanding: ITBS is NOT caused by a "tight IT band" that needs stretching. The IT band cannot meaningfully stretch. Instead, it's caused by weak hip muscles (especially glute medius) that allow excessive hip adduction and internal rotation during running, creating friction/compression at the knee. Key insight: Hip strengthening is the primary treatment, not foam rolling the IT band (though this may provide temporary symptom relief).

General Principles

• •Hip strengthening is THE treatment - specifically glute medius
• •The IT band itself cannot be stretched meaningfully
• •Foam rolling may provide temporary relief but doesn't fix the cause
• •Downhill running and cambered surfaces aggravate symptoms
• •Shortening stride and increasing cadence often helps
• •Recovery time correlates with how long you've had symptoms

Recommended Exercises

Knee injuries are among the most common issues for runners, affecting up to 50% of runners annually. The knee absorbs significant impact forces during running (2-3x body weight per step). Most running-related knee pain responds well to activity modification, hip strengthening, and gradual return. Common conditions covered here: - Patellofemoral pain syndrome (runner's knee): anterior knee pain - Patellar tendinopathy: pain at patellar tendon below kneecap - Meniscus irritation: medial or lateral knee pain with possible catching - General overuse knee pain Note: For IT band syndrome (lateral knee pain), see the dedicated ITBS file.

General Principles

• •Reduce impact forces through softer surfaces and shorter strides
• •Avoid excessive downhill running (eccentric quad loading)
• •Strengthen glutes and hips to reduce knee valgus
• •Consider gait analysis for form corrections
• •Increasing cadence by 5-10% often reduces knee loading
• •VMO (inner quad) strengthening helps patellar tracking

Recommended Exercises

Lower back stiffness in runners commonly arises from hip flexor tightness, glute inhibition, weak core endurance, and poor running posture. The repetitive impact and forward lean of running can create or exacerbate lumbar restrictions. Running-specific causes: - Hip flexor dominance from repetitive hip flexion - Weak or inhibited glutes - Core fatigue during long runs - Inadequate warm-up - Prolonged sitting between runs

Masters runners (50+) can continue to train effectively and improve performance, but require specific adjustments to account for age-related physiological changes: reduced recovery capacity, decreased tendon elasticity, lower VO2max ceiling, and increased injury susceptibility. These adjustments are not about limiting runners. They are about optimizing training to produce the best results within the body's changing capacity. Many masters runners achieve personal bests by training smarter, not harder.

Plantar fasciitis is the most common cause of heel pain in runners, affecting the thick band of tissue (plantar fascia) connecting the heel to the toes. It typically causes stabbing pain with first steps in the morning or after periods of rest. The condition is often related to tight calf muscles, excessive training load, or inadequate footwear support. Despite the name "-itis" (inflammation), chronic cases are often more degenerative than inflammatory, similar to tendinopathy.

General Principles

• •Calf stretching is the most important intervention - do it multiple times daily
• •Never walk barefoot on hard surfaces, especially in the morning
• •The first steps of the day matter - stretch before getting out of bed
• •Arch support (shoes or orthotics) reduces fascial strain
• •Avoid flat, unsupportive shoes (flip flops, ballet flats)
• •Ice rolling can provide temporary relief (frozen water bottle under foot)

Recommended Exercises

Foundational exercises to prevent the most common running injuries. Perform 2-3 times per week, ideally on easy run days or rest days.

General Principles

• •Patience is faster - proper return prevents re-injury
• •Walk before you run, literally
• •Build volume before intensity
• •Monitor for warning signs daily

Shin splints (medial tibial stress syndrome, MTSS) are the most common overuse injury in runners, affecting up to 35% of runners at some point. The condition involves inflammation and microtrauma along the posteromedial border of the tibia, where the soleus and tibialis posterior attach. Shin splints exist on a continuum with stress fractures. MTSS involves diffuse tenderness along 5+ cm of the tibia, while a stress fracture presents as focal, pinpoint tenderness. This distinction is critical because the management differs significantly. Common conditions covered here: - Medial tibial stress syndrome (most common, inner shin border) - Anterior shin splints (less common, outer shin, tibialis anterior) - Tibial stress reaction (early-stage bone stress, precursor to fracture) Risk factors: sudden volume increases, hard surfaces, worn footwear, overpronation, low bone density, female sex, prior shin splint history.

General Principles

• •Shin splints can progress to stress fracture if not addressed, gradual return is critical
• •Address training errors: volume spikes, inappropriate footwear, hard surfaces
• •Strengthen calves and anterior tibialis to absorb impact forces
• •Consider orthotics or gait analysis if overpronation is present
• •Increasing cadence by 5-10% reduces tibial loading per step (Heiderscheit et al. 2011)
• •Surface matters: prefer grass, trails, or treadmill over concrete and asphalt

Recommended Exercises

Stress fractures are overuse injuries where repetitive loading exceeds bone's ability to repair, causing microscopic damage that progresses to fracture. They represent a spectrum from stress reaction (bone edema, no fracture line) to complete stress fracture. Common sites in runners: tibia (most common), metatarsals, femoral neck, navicular, pelvis (sacrum, pubic rami). CRITICAL: Stress fractures require REST FROM RUNNING. There is no "running through" a stress fracture. Some locations (femoral neck, navicular) are HIGH-RISK and require strict non-weight-bearing and possibly surgery.

General Principles

• •Stress fractures require rest from impact - there is no alternative
• •MRI is the gold standard for diagnosis (X-ray often negative early)
• •Night pain and pain at rest suggest stress fracture, not soft tissue
• •High-risk locations require immediate orthopedic referral
• •Return too quickly = high risk of refracture
• •Address underlying causes: training errors, footwear, nutrition, hormones

Recommended Exercises

Upper back (thoracic spine) stiffness in runners affects arm swing, breathing efficiency, and overall running economy. While less common than lower back issues, thoracic stiffness can impair performance and contribute to neck and shoulder discomfort during runs. Running-specific causes: - Tense upper body during runs - Poor posture from desk work affecting running form - Limited rotation in arm swing - Breathing restrictions from thoracic stiffness - Fatigue-related posture collapse on long runs