Topic
Recovery
Active recovery, deload weeks, parasympathetic tools, and rest days.
Rex DaltonDoes Taking a Deload Week Actually Build More Muscle?
Every competitive lifter in a 246-athlete survey deloaded on schedule, roughly 6.4 days every 5.6 weeks, mostly for fatigue management, and almost nobody had tested whether the week off did anything.
Lauryn BrittDo Electrolytes Actually Prevent Muscle Cramps During a Race?
A review of 10,533 IRONMAN medical tent records across 49,530 starters found that cramping athletes had the same serum sodium and potassium as athletes treated for anything else.
Atlas MercerDoes Urolithin A Actually Make You Stronger, or Just Better at Recovering?
In trained runners and lifters, urolithin A failed to move race times or one-rep maxes, so if you are already fit and buying it to add raw performance, the trials do not back that purchase.
Rex DaltonDo Antagonist Supersets Build the Same Muscle in Less Time?
A 2025 Sports Medicine meta-analysis of 19 studies found supersetting cut workout time about 37 percent while producing muscle growth statistically identical to traditional straight sets.
Jamie ReyesIf You Take Months Off From Lifting, Does the Muscle Come Back Faster?
Muscle you lose during a long layoff comes back faster than it first grew, because the myonuclei your training installed stay inside the fiber even after the size shrinks.
Lauryn BrittWhy Does Delayed-Onset Muscle Soreness Peak Two Days Later, Not Right After a Hard Workout?
The soreness that arrives 24 to 48 hours after an unfamiliar workout has a name — delayed-onset muscle soreness — and its timing tells you something important about what is actually damaged. For decades, the popular s…
Lauryn BrittDoes Sleep Loss Actually Slow Down How Fast Your Injured Tissue Heals?
Most people treat sleep as the softest variable in recovery — the thing they'll sacrifice first when life gets busy after an injury. The wound-healing literature suggests that's a mistake. In a controlled study of exp…
Lauryn BrittWhy Do ACL Injuries Spike in the Days Before a Period? The Ligament Laxity Research
If you tear an ACL without contact, the odds that it happened during a specific window of your menstrual cycle are not random. A body of work stretching back over two decades has found that non-contact ACL ruptures cl…
Rex DaltonDoes Training the Same Muscle Right After You Sleep Build It Faster?
Everybody obsesses over rest days and recovery windows, but almost nobody asks the flip side of the question: does the timing of your session relative to your sleep-wake cycle change how much muscle you actually build…
Elias KiptooDoes Adding a Weekly Downhill Run Actually Protect Your Legs on Race Day?
Most marathoners train their quads to push and forget to train them to brake. Then they hit a downhill course like Boston, or the back half of any point-to-point race, and the eccentric load shreds a muscle that was n…
Jamie ReyesDoes Training Your Weekly Volume in Fewer Sets With Longer Effort Build the Same Muscle?
Here's a question I get from lifters who are chronically short on time: instead of grinding through three or four straight sets, can you do one long set that keeps the muscle under continuous tension and call it a day…
Lauryn BrittDoes Loading a Tendon With Heavy, Slow Reps Actually Reverse Tendinopathy Better Than Rest?
The old advice for a cranky patellar or Achilles tendon was to stop moving it and wait. The research has quietly buried that idea. Håkan Alfredson's foundational work on chronic Achilles tendinopathy showed that a twe…
Jamie ReyesDo Longer Muscles at the Stretched Position Actually Grow Faster? What the Lengthened-Partials Research Really Shows
Here's a question that keeps landing in my inbox: if the bottom of a rep is where the magic happens, should you just live there and skip the top? The lengthened-partial crowd says yes, and for once the hype has some r…
Atlas MercerHow Much Does Cold Water Immersion After Lifting Blunt Your Muscle Gains?
The protocol question is not whether an ice bath feels good after a hard session. It is whether the cold is quietly deleting the adaptation you paid for. The data here is more precise than most people assume. In a con…
Rex DaltonDoes Stretching a Muscle Under Load Between Sets Build More Muscle?
Here's a trick that keeps showing up in the hypertrophy literature, and it's not fluff: holding a muscle in a deep, stretched position under load, either during the set or between sets, appears to add growth on top of…
Atlas MercerHow Long Should You Rest Before Retesting a One-Rep Max After a Hard Session?
Most lifters treat strength as a fixed number. It is not. It is a signal that decays and recovers on a measurable curve, and the shape of that curve is more predictable than your gym-day intuition suggests. When you f…
Jamie ReyesDo Wider Grips on the Lat Pulldown Actually Build a Wider Back Than Narrow Grips?
Every gym has that guy who swears the ultra-wide pulldown is the only way to build a barn-door back. The logic sounds reasonable: wide grip, wide lats. But the actual muscle-activation data tells a messier story. When…
Rex DaltonDoes Training Closer to Your Actual 1RM Build More Strength Than Lighter Loads?
Here's a question I get from every competitor who's spent a year in the 8-to-12 rep range and now wants a bigger squat, bench, and deadlift for a powerlifting meet: do you actually have to grind heavy singles and doub…
Rex DaltonDoes Doing Cardio After Lifting Kill Your Muscle Gains?
You've heard it in every gym locker room: cardio steals your gains. So lifters skip conditioning entirely, show up to prep with the cardiovascular capacity of a houseplant, and then wonder why they gas out on stage. T…
Jamie ReyesDoes Adding Tempo to Your Lifts Build More Muscle, or Just Slow You Down?
There's a stubborn gym myth that grinding every rep slowly — four seconds down, four seconds up — packs on more size because the muscle is "under tension longer." It sounds logical, and it gets repeated like gospel. B…
Rex DaltonDoes Spreading Your Reps Over More Range Build More Muscle Than Partials at the Top?
Lifters love to argue about partials, and most of them are arguing about the wrong half of the rep. The interesting question isn't whether partials "count." It's whether training a muscle at long muscle lengths — the…
Lauryn BrittWhy Your Sprained Ankle Keeps Rolling: The Hidden Sensory Deficit Behind Chronic Instability
The first ankle sprain is bad luck. The fifth one is a system that never relearned where your foot is in space. Roughly 40 percent of people who sprain an ankle once go on to develop chronic ankle instability — the re…
Lauryn BrittWhy Do Hamstring Injuries Keep Coming Back? The Eccentric Strength Answer
The hamstring is the most re-injured muscle group in sport, and the reason is not bad luck. Roughly a third of strained hamstrings tear again, most of them inside the first two weeks of return. For years the field ass…
Rex DaltonHow Many Hard Sets Per Muscle Per Week Actually Build the Most Muscle?
Walk into any gym and you'll hear two camps yelling at each other. One says ten sets a week is plenty. The other says you need thirty or you're leaving gains on the table. The truth, backed by the biggest meta-analysi…
Jamie ReyesDoes Spreading Your Sets Across the Day Build More Muscle Than One Long Workout?
Most lifters assume the workout is a single block: you walk in, you hammer your sets, you leave. But a question keeps surfacing in the research that's worth your attention if your schedule is chaotic: what if you spli…
Rex DaltonShould You Lift to Failure or Leave Reps in the Tank? The Hypertrophy Answer
Here is the question that ends more arguments in my gym than any other: do you have to grind every set to the point where the bar stops moving, or can you stop short and still grow? The bros say failure or it doesn't…
Rex DaltonShould You Train a Muscle Twice a Week or Hammer It Once? The Frequency Verdict
Walk into any gym and you'll hear two camps screaming at each other. One says hit chest once a week and bomb it with twenty sets. The other says split that volume across the week and grow faster. I've coached both. Th…
Atlas MercerHow Long Should You Rest Between Sets to Build Muscle? The 3-Minute Data
Most lifters rest by feel, which means they rest by impatience. The data says impatience costs you hypertrophy. In a controlled trial, Schoenfeld and colleagues compared 1-minute versus 3-minute rest intervals in resi…
Jamie ReyesWhy the Bottom Half of Your Rep Builds the Most Muscle
People love to lock out their reps to show they finished the job, but if you want to build actual size, you need to respect the stretch. Over the past few years, sports science has confirmed what old-school lifters al…
Atlas MercerThe Parasympathetic Trap of Heart Rate Variability
The default assumption in wearable analytics is that a higher heart rate variability indicates a higher state of recovery. This is a heuristic, and heuristics fail at the margins. Willpower will convince you to train…
