Central Fatigue Review Finds Serotonin Signals Are Not a Simple Performance Switch
A new JISSN meta-analysis suggests serotonin-related central fatigue signals vary by outcome, reinforcing caution around simple performance-hack claims.
Category Training
Training articles, exercise technique, programming notes, and workout education.
FDA Warns Performance Supplement Hid DMAA on the Label
FDA says PRE-FORMANCE BLACK, a performance product, contained undeclared DMAA. Lifters should treat the notice as a supplement-safety warning, not routine label fine print.
Creatine Immune-Cell Study Is Interesting, but Not a Cancer Shortcut
UCLA creatine research points to immune-cell effects in early cancer models, but lifters should not treat it as a treatment shortcut.
Lengthened Partials May Build Quads Like Heavier Full Reps, Study Finds
A PubMed-indexed resistance-training study found moderate-load lengthened partial knee extensions produced hypertrophy outcomes similar to heavier full range-of-motion work in an eight-week trial.
Caffeine Gum Study Shows a Same-Day Lift, Not a Recovery Shortcut
A JISSN study found caffeine gum paired with resistance priming improved same-day performance markers in male basketball players, but the effect did not persist at 24 or 48 hours.
Carbs Alone May Not Be the Missing Hypertrophy Lever, Review Finds
A Sports Medicine systematic review and meta-analysis found no clear independent hypertrophy boost from higher carbohydrate intake during resistance training, but the certainty of evidence was low.
Exercise may help aging muscles keep their repair systems online
A Duke-NUS-led study in PNAS points to DEAF1 and mTORC1 as part of the biology that may explain why exercise helps older muscle maintain repair capacity.
Physique Competitors Need a Real Recovery Plan After Show Day
A PubMed-indexed study of natural physique athletes suggests post-show recovery should be planned, monitored, and treated as its own training phase.
Essential Amino Acids May Help Older Women Get More From Resistance Training
A randomized trial suggests resistance training plus essential amino acids may improve muscle fitness markers in healthy older women.
Leg Press Builds Quads Efficiently, but Knee Extensions Still Have a Role
Source credit: PubMed – Medicine and Science in Sports and Exercise. Full text is available via PubMed Central. Short summary A PubMed-indexed July 2026 study in Medicine and Science in Sports and Exercise directly compared two common quad-training choices: single-joint…