Mar 24, 2026Why Fitness Apps May Be Using the Wrong Exercise PsychologyA review of 66 exercise trials found that habit, identity, and rewards may beat information and goals alone for young adults.behavior change techniqueshabit formationfitness appsRead article →
Mar 24, 2026HIIT Helps Youth Fitness, Not Weight Loss, Study FindsA 47-trial review finds HIIT can raise youth VO2max and lower blood pressure after 8 weeks—without reliably changing BMI or body fat.hiitvo2 maxpediatric fitnessRead article →
Mar 24, 2026Does Pre-Workout Caffeine Lower HRV After Exercise?Pre-workout caffeine does not consistently reduce post-exercise HRV in pooled trials, but strength training and individual responses complicate the answer.caffeinehrvpre-workoutRead article →
Mar 24, 2026Blood Flow Restriction May Amplify HIIT Gains—With CaveatsBlood flow restriction may amplify interval-training gains in trained athletes, but cuff width, individual pressure, and safety gaps change the prescription.blood flow restrictioninterval trainingmuscle strengthRead article →
Mar 24, 2026HIIT for Overweight Adults: What Dose Actually Works?HIIT can raise cardiorespiratory fitness in overweight adults, but research still cannot name the best dose, interval length, or weekly plan.hiitvo2 maxinterval trainingRead article →
Mar 24, 2026Sprint Intervals: Faster Workouts, Unsettled Heart EvidenceSprint interval training can raise fitness, but a 2025 umbrella review found no proven edge over steady cardio—and much of the evidence rates low quality.sprint interval trainingvo2 maxhiitRead article →
Mar 24, 2026HIIT vs. SIT vs. RST for VO2max: What the Rankings MeanA 51-study network meta-analysis reportedly ranks RST first for athlete VO2max. Here's what the evidence supports—and what it cannot yet prove.hiitvo2 maxsprint interval trainingRead article →
Mar 24, 2026Best Exercise for Fatty Liver? It Depends on the OutcomeExercise improves fitness and waist size in MASLD, but the best workout for liver fat remains less certain. Here's what RCT evidence shows.masldvo2 maxintrahepatic lipidRead article →
Mar 24, 2026HFpEF Exercise: Why HIIT Did Not Beat Moderate TrainingIn HFpEF, HIIT and moderate exercise both improved peak VO2 versus advice alone. The largest trial explains why harder intervals did not win.hiithfpefvo2 maxRead article →
Mar 23, 2026HIIT vs. Steady Cardio After 60: Is the Edge Worth It?A 2026 meta-analysis finds HIIT improves VO2max slightly more than steady cardio after 60. See what the 1.17 mL/kg/min edge means.hiitvo2 maxolder adultsRead article →
Mar 23, 2026Online HIIT in Pregnancy: What an 8-Week Trial FoundAn 8-week online HIIT trial preserved fitness markers and improved body composition in pregnancy. Here is what the data support—and who it does not cover.hiitpregnancyprenatal exerciseRead article →
Mar 23, 2026Walking, Dementia, and HFpEF: What Step Data ShowHow daily step counts and brisk walking relate to dementia and HFpEF risk, what 9,826 steps means, and why the evidence still cannot prove cause alone.daily stepsdementia preventionwalking speedRead article →