Pain and injury

What works

Pain is a brain-generated signal and a request for change, not a direct readout of tissue damage. Kelly and Juliet Starrett describe pain as the brain perceiving tissue as a threat and frame it as "a request for change" that invites curiosity rather than panic (The Ready State on YouTube, Instagram). Bill Hartman calls pain "a decision by the brain to bring attention to something potentially important" (Instagram), Jordan Shallow points to Bayesian predictive processing, meaning sensation is only part of perception (Instagram), and Neal Hallinan builds his whole chronic-pain model on the brain and autonomic nervous system rather than local tissue (YouTube). Gray Cook adds that pain in movement often reflects inappropriate muscle tone and stabilization deficits rather than damage at the painful spot (YouTube). The practical upshot, shared across all of them: respect pain, investigate it, but do not automatically equate it with harm.

Never stop training entirely; modify the movement, the load, or the limb and keep going. Jeff Cavaliere's framing is that injuries are "road closures, not city shutdowns" (Instagram) and that training around an injury while avoiding aggravating exercises lets you keep gaining while healing (YouTube). Mike Boyle says the goal of rehab "is not to avoid training but to find a way to keep training" (Instagram) and that one injured limb does not shut down the whole athlete (Instagram). The Starretts prescribe maintaining the minimum tolerable movement, even just breath work or gentle walking, to keep the injured system "plugged in" (Instagram), and regressing movements (simpler, smaller range, slower) rather than pulling athletes from training (TikTok). Michelle Boland trains persistent-pain clients by finding what they can do rather than stopping them (Instagram), and Judd Lienhard keeps knee-pain clients lifting with concentric-only and isometric work (Instagram).

Rebuild injured tissue with a graded loading progression, with isometrics as the entry point. Judd Lienhard's sequence runs passive movement, then overcoming isometrics, then yielding isometrics, then slow eccentrics, then easy plyometrics, because tendons do not heal with rest alone (Instagram, YouTube). The Starretts use 30 second isometric holds for 3 to 5 rounds to desensitize tendons and give the nervous system safe exposure (TikTok, Instagram), plus point isometrics for tendinopathy hot spots combined with breathing and contract-relax work (Instagram). For muscle strains, Lienhard progresses from passive movement to short-length isometrics, then high-rep slow concentrics, then moderate-speed isotonics over about a week (YouTube). The Starretts add that early rehab should build muscular endurance and volume tolerance with moderate loads before chasing maximal strength (Instagram), and that rehab should eventually restore bounce, rhythm, and quickness, not just range of motion (Instagram).

Sudden spikes in training volume are the most preventable injury cause; progress smoothly and stay in the game year-round. Mike Israetel tells athletes to avoid abrupt volume jumps, keep some sport-specific activity year-round, and limit complete post-season breaks to about two weeks (Instagram); he flags preseason volume spikes as a major injury driver in soccer (YouTube) and, after a long layoff, advises avoiding very heavy lifting for 3 to 4 months because tendons adapt more slowly than muscle (YouTube). The Starretts want consistent, progressive tissue loading rather than a sedentary week capped by heroic weekend sessions, with regular low-level plyometric exposure such as jump rope and pogo work for durability (TikTok). Alyssa Olenick names "too much, too fast, too soon" as the dominant injury mechanism (YouTube) and warns runners specifically against volume spikes after breaks (Instagram). Jordan Shallow notes the flip side: underloading at certain dosages is as risky as overtraining (Instagram).

Pain is rarely isolated to the painful joint; assess and treat the joints above and below and the whole movement system. Gray Cook's principle of regional interdependence holds that a local limitation ripples through the body (YouTube) and that shoulder problems routinely involve the neck, upper back, scapula, and even hips (Instagram). The Starretts make the same case for the knee (Instagram), as does Jeff Cavaliere, whose knee-pain protocol starts at the glute medius, hip, and foot (YouTube). Bill Hartman insists injuries are rarely isolated when building return-to-play programs (Instagram), Jordan Shallow traces quad tears back to old ankle injuries (YouTube), and Neal Hallinan treats SI joint pain as a whole-pelvis asymmetry problem rather than a local one (YouTube).

Rehab is a daily practice you own, not something done to you in appointments. The Starretts are emphatic that physical therapy sessions provide the framework and feedback while the patient does the actual rehab through consistent day-to-day work; a few hours a week may cover basic function, but returning to sport demands near-daily mobilization, strengthening, and positional practice (Instagram, TikTok). They add that healing and full functional recovery after lower-body injuries can run 12 to 18 months, well past discharge, so keep monitoring with tests like the single-leg jump (TikTok). Jordan Shallow gives realistic rehab timelines of 12 to 24 weeks for meaningful cases (YouTube), and Gray Cook pairs hands-on resets with self-management skills so patients are not dependent on repeated treatments (YouTube). Boyle frames the ideal as collaboration between the physical therapist and the strength coach so training never fully stops (Instagram).

Train the uninjured side; strength transfers across. Mike Boyle recommends continuing regular unilateral lower-body training on the uninvolved leg plus normal upper-body work, because cross-transfer helps preserve strength in the injured limb through neural adaptations (Instagram, Instagram, Instagram). Jordan Shallow takes single-leg work on the healthy side to failure during rehab (Instagram), and the Starretts build whole-body training around the injury as a core rehab principle (Instagram).

Blood flow restriction training is a validated low-load tool for rehab and surgical preparation. Boyle cites research supporting BFR as effective and safe for building strength at low loads under trained supervision, including early after tendon surgery (Instagram). The Starretts use BFR before surgery to bank strength without joint stress (TikTok) and prescribe a 30-15-15-15 rep scheme alongside isometrics for tendon desensitization (Instagram). Vonda Wright points people with knee pain toward low-impact work plus BFR so they can keep training hard (TikTok).

Proactively train the rotator cuff and the scapula; the shoulder trades stability for mobility and needs the support. Vonda Wright calls the shoulder inherently unstable and prescribes five banded exercises (forward flexion, cross-body abduction, external rotation, internal rotation, rows) at 3 sets of 10 (Instagram, Instagram). Jeff Cavaliere programs banded cuff work 3 to 4 times per week starting with 3 to 5 sets of 5 to 10 second isometric holds (Instagram) and identifies shoulder-blade immobility as the leading cause of shoulder pain (Instagram). The Starretts target internal rotation with Cuban rotations, kettlebell work, and 30 second yielding isometrics, aiming for roughly 70 degrees internal and 90 degrees external rotation (YouTube). Progression should move beyond isolation: Jordan Shallow advances cuff work through arcs of movement and co-contraction rather than just heavier external rotations (Instagram), and Gray Cook favors closed-chain drills like reach-roll-lift before open-chain patterns (YouTube).

Low back pain has no blanket protocol; keep moving, individualize, and stop fearing flexion. Bill Hartman and Gray Cook both insist on individualized assessment over generic programs (YouTube, Instagram). Boyle's rule is never stop training with back pain (Instagram), and Lienhard argues the spine is built to flex and should be trained through flexion at low load rather than protected from it (Instagram, YouTube). Jeff Cavaliere points to glute medius weakness as a key contributor and notes discs account for only around 30 percent of cases (Instagram, Instagram), while the Starretts find athletic back pain is often a hip flexion range problem rather than a strength deficit (YouTube).

Technique quality, controlled tempo, and form maintenance are frontline injury prevention. Mike Israetel holds that good technique is essential for both safety and results, and that sloppy technique ends careers (Instagram, Instagram). Vonda Wright calls constant form work the best injury prevention for heavy lifting (Instagram). Cavaliere slows reps to roughly 8 seconds to relieve joint stress during painful sessions (Instagram), Judd Lienhard stops sets at the first warning sign of technique breakdown (YouTube), and Alyssa Olenick frames form as a spectrum where better form lowers risk even though imperfect form does not guarantee injury (YouTube).

For specific situations

• Midlife women and frozen shoulder. Vonda Wright explains frozen shoulder as capsule inflammation often triggered by estrogen loss in midlife or diabetes; her protocol is to keep the shoulder moving from the first sign of soreness, get into physical therapy fast, consider hormone optimization and lower sugar intake, and reserve steroid or PRP injections for stubborn cases (Instagram, TikTok, TikTok).
• Arthritis and joint pain. Wright emphasizes that osteoarthritis is a whole-joint disease, that stronger muscles around a joint mean less pain and better function (Instagram), that running does not cause arthritis on current data (Instagram), and that excess body weight multiplies joint load 7 to 10 times (Instagram). Jordan Shallow notes that losing 10 to 15 pounds can outperform corrective exercise for knee pain (Instagram), and Judd Lienhard confirms muscle around damaged joints slows progression and eases pain (TikTok).
• Hypermobile people. Alyssa Olenick treats strength training as both rehab and prevention for hypermobility spectrum disorder, staying at 80 to 90 percent of capacity with skilled physical therapy support (YouTube). Neal Hallinan adds that hypermobility involves autonomic dysregulation, faulty interoception, and frequent mast cell comorbidity, so lifestyle and multidisciplinary care matter alongside loading (YouTube).
• ACL and major lower-body surgery. The Starretts put realistic return-to-sport at about a year, warning that discharge at 6 to 12 weeks is associated with roughly 25 percent reinjury, and track single-leg jump symmetry well past formal therapy (YouTube, TikTok). Lienhard considers squats and deadlifts generally safe post-ACL with caution on single-leg loading early (YouTube).
• Runners returning from foot pain. Lienhard limits running to 2 to 3 sessions per week, increases volume slowly, favors soft surfaces, cross-trains with cycling and swimming, and strengthens calves and tibialis anterior (YouTube). Michelle Boland uses front-foot-elevated split squats and backward sled drags to rebuild runners after peak seasons (Instagram).
• Plantar fasciitis mornings. The Starretts advise pointing, flexing, and rolling the foot before getting out of bed, then loading gradually with side-to-side weight shifts before full weight bearing (Instagram).
• Older adults and risk selection. Boyle has athletes tolerate higher-risk exercises for higher reward, while adults over 40 should choose low-risk, high-reward options (Instagram). Cavaliere prescribes controlled, slower movements with manageable weights for older or orthopedically limited trainees (YouTube). Lauren Colenso-Semple contraindicates jumping for people with prior fractures, urinary incontinence, or pain on the movement (Instagram).
• Regenerative injections. The Starretts position PRP, prolotherapy, and autologous stem cells for patients who have plateaued with physical therapy but are not yet surgical candidates, with dextrose prolotherapy suiting mild ligament laxity and PRP or stem cells for more severe cases (YouTube). Vonda Wright uses PRP at doses around 10 billion platelets for arthritis (YouTube), and Michelle MacDonald stresses these are adjuncts that never replace mechanics and rehab (Instagram).
• Barefoot and minimalist footwear. Wright endorses barefoot running only after a gradual, staged transition from supportive shoes; jumping straight in raises injury risk (YouTube). Hallinan goes further for patients in pain with extension postures, moving them out of minimalist shoes into footwear with better sensory input (YouTube).

Open questions

• NSAIDs and anti-inflammatories. The Starretts argue against masking pain with ibuprofen or Toradol because pain is a needed signal and inflammation is part of healing; they prefer Tylenol when medication is needed (Instagram, YouTube, YouTube). Vonda Wright, by contrast, recommends ibuprofen and ice at the first sign of frozen shoulder, and brief anti-inflammatory courses in osteoarthritis (TikTok, Instagram). The reconcilable middle: avoid habitual masking to push through training, but short targeted courses have a place in specific inflammatory conditions.
• Core training for low back pain. Pat Davidson flatly states core training is not the fix for back pain (Instagram), and the Starretts agree athletic back pain is rarely a strength problem (YouTube), while Cavaliere's glute medius work and Hallinan's left-abdominal activation protocols still assign targeted trunk and hip work a role (Instagram, YouTube). The split is over generic core strengthening as a universal prescription, not over targeted work.
• Isolated banded cuff drills versus integrated patterns. Wright and Cavaliere prescribe classic banded rotation protocols (Instagram, Instagram), while Gray Cook argues isolated internal and external rotations with bands are inferior to multi-planar, closed-chain, and PNF-style patterns (YouTube), and Bill Hartman sees band work as useful mainly for positioning rather than strength (Instagram). Shallow's progression from isolation into arcs and co-contraction bridges the two camps (Instagram).
• Healing peptides (BPC-157, TB500). Mike Israetel reads the animal data as moderate to large tissue-repair effects but stresses the absence of quality human trials, with TB500 carrying a theoretical tumor-feeding angiogenesis risk (YouTube). Louisa Nicola echoes both the cartilage-healing mechanism and the cancer caution (Instagram), and Judd Lienhard rates post-op BPC-157 as probably safe but of limited benefit for bone healing (YouTube). Cautious curiosity, not endorsement, is the shared position.
• Balance devices and unstable-surface training. Israetel finds balance boards and isolated ankle drills transfer poorly compared with sport-specific dynamic work (YouTube), and Frans Bosch dismisses bosu balls and mini bands for robust rehab (Instagram), while the Starretts still use balance work as sensory input for brain remapping after injury (Instagram). The disagreement dissolves when balance work is framed as sensory rehab rather than performance training.

Cautions

• Seek medical evaluation rather than self-managing when symptoms linger, strength decreases, or range of motion changes (Michelle MacDonald, Instagram), when pain cannot be worked through (Gray Cook, YouTube), or when soreness changes without a training explanation, where the Starretts suggest blood panels and medical consultation (Instagram).
• Roughly 30 percent of people discharged from medical care remain in pain and at high musculoskeletal risk, so discharge is not the same as recovery (Gray Cook, Instagram).
• Do not leave braces or compression sleeves on continuously; they can cause distal swelling. The Starretts prefer short, aggressive compression (voodoo floss wrapped toward the heart for at least a minute) plus elevation (YouTube).
• Imaging findings frequently fail to match symptoms; MRIs should be read alongside movement capability and clinical presentation, not as a verdict (Bill Hartman, Instagram; Michelle Boland, Instagram).
• Previous injury is itself a leading risk factor for the next one, and risk factors multiply rather than add, so incomplete rehab compounds over time (Gray Cook, YouTube, Instagram).

Putting it into practice

• Default response to non-traumatic pain: modify rather than remove. Regress range, slow tempo, reduce load, or switch to isometric or concentric-only variations, and keep the session going (Starretts, Boyle, Lienhard, Cavaliere).
• For tendon issues, program 30 second isometric holds, 3 to 5 rounds, progressing to yielding isometrics, slow eccentrics, then easy plyometrics over weeks; add BFR at a 30-15-15-15 scheme when heavy loading is not tolerated (Lienhard, Starretts).
• Cap week-over-week volume increases; never jump from low to high volume after breaks or in preseason, and after a layoff of months keep loads submaximal for 3 to 4 months while tendons catch up (Israetel, Olenick, Starretts).
• Include 2 to 3 weekly touches of low-level elasticity work (jump rope, pogos, easy hops) year-round for tissue durability (Starretts, Jamieson).
• Program proactive rotator cuff and scapular work 2 to 4 times per week: banded cuff series at 3 sets of 10, or 5 to 10 second isometric holds progressing to arcs and closed-chain reach-roll-lift patterns (Wright, Cavaliere, Starretts, Cook, Shallow).
• During any injury, keep training the uninvolved limbs at normal intensity, including unilateral lower-body work on the healthy leg, to exploit cross-transfer (Boyle, Shallow, Starretts).
• For back pain, do not prescribe a generic core block; screen hip flexion range and glute medius function first, keep the person training, and reintroduce loaded flexion gradually at low load (Davidson, Starretts, Cavaliere, Lienhard).
• Set realistic recovery expectations in the plan: 12 to 24 weeks for significant rehab, up to 12 to 18 months for full function after major lower-body injury, with single-leg jump symmetry checks before full return to sport (Shallow, Starretts).

Experts in this guide: Instagram, The Ready State on YouTube, TikTok, YouTube.

Before you act. Entrain is a free knowledge resource. It brings together what named doctors, scientists and coaches teach publicly, with sources, so you can explore and discuss it with your own clinician. It does not diagnose, treat or prescribe, and it is not a substitute for medical care.