#414 ‒ Resistance training as we age: optimizing exercise selection and training intensity for muscle growth, function, and injury risk management | Jeff Cavaliere, M.S.P.T., C.S.C.S.

Jeff Cavaliere explains that he wanted a career combining education, helping people, and sports. After becoming a physical therapist, he served as the New York Mets’ head physical therapist for three seasons, from 2006 through 2008. In 2009, he began making YouTube videos that translated lessons from elite athletes into training advice for people who would never become professionals. His central philosophy is that rehabilitation, strength training, and athletic performance form one continuum: an injured person is temporarily less functional, while athleticism represents very high function. After roughly 1,700 videos and nearly 15 million subscribers, he still tries to offer flexible solutions rather than one rigid exercise prescription.

Peter and Jeff discuss the tension between education and platforms that reward increasingly short videos. Jeff says short-form content forces educators to select an attention-grabbing soundbite without explaining why it works, leaving viewers with instructions they may not understand or remember. His company jokes about commenters demanding “sets and reps please,” because many people want the prescription while skipping the reasoning. Jeff continues making long-form material, while also extracting short clips and making the first three seconds more engaging. He considers that adaptation frustrating but necessary: the goal is still to teach principles that transfer to exercises beyond the one shown.

Jeff attributes much of his current pain to poor training advice and trying to become a lifter or bodybuilder without correcting known problems. He has extremely flat feet, which he believes shifted stress up the kinetic chain into his knees, hips, and back; he wishes he had consistently used appropriate orthotics earlier. He also has a torn right shoulder labrum, at least a 50% supraspinatus tear, and degeneration that led one clinician to describe the shoulder as resembling that of an 80-year-old. The shoulder injury came from an ill-advised attempt to throw a baseball from the Mets’ outfield to third base for a $1,000 bet. He now trains around painful movements rather than abandoning training altogether.

A year after injuring his shoulder throwing a baseball, Jeff accepted another Mets challenge: throwing a football 60 yards. He succeeded and was paid $1,000, partly because the football throw used a more favorable scapular-plane position and involved more triceps, unlike the high-torque baseball throw. Peter asks why elite athletes such as Bo Jackson make difficult skills look effortless. Jeff says exceptional athletes are neither simply born nor entirely made: they may have more type II fibers, speed, explosive power, neuromuscular efficiency, and proprioceptive intelligence. He cites Bo’s hip injury and David Wright’s career-ending spinal complications as reminders that even extraordinary athletic ability cannot eliminate injury risk.

Peter presents Tom Brady as an example of athletic longevity and rejects the idea that Brady’s success reflects a lack of athleticism. Jeff says pliability is trainable partly by avoiding the trade-off between maximal muscle size and functional elasticity; mobility and flexibility must remain part of training. More important, he views Brady as the embodiment of consistency. Brady presumably performs necessary preparation even when it is not enjoyable, rather than narrowing his work to the things he already does well. Jeff extends that lesson to everyone: life is a sport, and an athlete’s mindset means using specific, structured training—not merely exercise—to address weaknesses and build resilience.

Jeff says the first step in training through the 40s, 50s, and 60s is admitting that the body no longer responds exactly as it did when younger. His transition took three or four years and was signaled by joint soreness, morning fatigue, and irritability rather than ordinary muscle soreness. He distinguishes the training stimulus itself from preparation and recovery, including warm-up, nutrition, and sleep, and says there is no universal solution: each person must run experiments and observe the result. Jeff began using bands before workouts to rehearse movement patterns and warm the rotator cuff. He also accepts that some declines, such as Peter’s worsening near vision, are age-related rather than training failures.

When Peter asks whether aging should change volume, load, or frequency, Jeff’s short answer is to reduce volume while increasing productive repetitions and intensity. He defines zero reps in reserve as mechanical failure, one RIR as having one good repetition left, and two or three RIR as stopping with that many difficult repetitions remaining. More than roughly four RIR is usually junk volume outside warm-ups, especially because most people underestimate their true capacity. Jeff argues that near-failure sets provide a clearer hypertrophy signal while eliminating unnecessary wear and tear. Fewer, harder sets can therefore improve the result without necessarily increasing total recovery demands.

Jeff separates psychological failure—the point at which discomfort makes someone unwilling to continue—from form failure and true mechanical failure. Slower repetitions or minor form looseness can be acceptable if the body remains stable and the exercise is still recognizable, but joint pain is a stop signal because the target muscle is no longer receiving the intended stimulus. Failure is safer on movements such as curls or pulldowns, where the weight can simply be lowered, than on squats or other compound lifts. For front or back squats, Jeff recommends saving one or at most two repetitions rather than grinding to failure, using racks, safety pins, boxes, or elevated deadlift setups to build confidence.

Peter describes once being able to add an all-out hill climb to a recovery ride or a maximal swim set, but now encountering days when a governor prevents that effort. Jeff says sleep, nutrition, and outside stress can consume the reserve needed to reach the next level of intensity, even when the person can still show up consistently. Aging adds biological constraints: declining type II fibers, muscle mass, and hormones affect strength, effort, stress regulation, and sleep quality. These factors make the same workout more demanding. The practical implication is to preserve consistency while recognizing that maximal intensity cannot be summoned every day as it could in one’s 30s.

For shoulder development, Jeff recommends a vertical press because it trains all three deltoid heads and preserves the functional ability to lift overhead. People with shoulder limitations can use a landmine press, narrower barbell grip, or one-arm dumbbell pressing, progressing toward overhead work as tolerated. For aesthetics, lateral raises—especially cable versions—emphasize the middle delt, while wide-elbow cable rows and face pulls train the often-neglected rear delt. He recommends roughly eight to ten high-effort weekly sets for shoulders, with less potentially sufficient for biceps and triceps because compound pulling and pressing add volume. Triceps programming should include a heavy lying extension, a pushdown, and a movement placing the long head in a fully shortened position, such as a kickback.

Jeff identifies eccentric overload as a major biceps growth stimulus, recommending cheat curls with controlled lowering and chin-ups performed with a slightly more open angle to shift work toward the biceps. Incline curls stretch the long head, while preacher or conventional curls emphasize the short head. Forearms need more than wrist curls: reverse curls train the brachioradialis, and banded pronation, supination, deviation, or rolling drills address additional functions. For chest, Jeff wants both pressing and arm adduction. He favors a roughly 30-degree incline press for people whose upper chest lags, plus cable crossovers or floor flies. He considers deep dumbbell flies risky for many shoulders and says dips can remain useful if depth, shoulder depression, and fatigue are controlled.

Jeff says nutrition determines whether abs are visible, while training determines their development. Ab work should include top-down flexion, bottom-up pelvic movement, rotation in both directions, and movements bringing the rib cage and pelvis together; slow, purposeful contractions are preferable to counting unproductive repetitions. For the back, he organizes training around vertical pulls, horizontal rows, upper-back and scapular work, and direct low-back strengthening. Tighter elbows emphasize the lats, while drifting elbows upward shifts a row toward the rhomboids, traps, and rear delts. He recommends progressing from chest-supported rows to unsupported standing rows, adding hyperextensions, reverse hypers, Supermans, and face pulls. In face pulls, two ropes allow adequate external rotation and a final overhead raise can involve the lower traps.

For quads, Jeff favors front squats, goblet squats, belt squats, Spanish squats, and upright Bulgarian split squats; leaning forward shifts more work toward the glutes. Leg growth may respond better to two weekly sessions than to endlessly extending one workout. He insists that smaller stabilizers still matter: hip drops or bumps, lateral work, and controlled external-rotation drills train the gluteus medius and address weaknesses that can contribute to hip or low-back problems. Calves require both straight-knee gastrocnemius work and bent-knee soleus work. Jeff recommends slow lowering, a four-second pause in the stretched position, and one-leg variations to prevent the Achilles tendon from taking over. Because calves are used constantly, two to four short weekly sessions may be more effective than one.

Jeff’s “exercise graveyard” is not a claim that an exercise injures everyone; it is a list of movements whose risk-to-benefit ratio is poor for many people when safer substitutes provide the same stimulus. His clearest example is the upright row: pulling the elbows high combines shoulder elevation and internal rotation under load, while a high pull that leads with the wrists can train the deltoids and traps without that position. He is similarly skeptical of behind-the-neck presses and pulldowns, heavy deep dumbbell flies, and dumbbell side bends. His broader rule is to modify rather than shut down training: an injury is a road closure, not a city closure, and appropriate loading remains part of recovery.