Rep Labs Fitness https://replabsfitness.com/ Research-backed training guides from the makers of Rep Labs. en-us Are Deep Squats Bad for Your Knees? What the Research Says https://replabsfitness.com/deep-squats-and-knees https://replabsfitness.com/deep-squats-and-knees Wed, 14 Oct 2026 12:00:00 GMT For healthy knees, deep squats aren't bad if you learn the technique and build load gradually. What the research shows, plus 5 squat technique fixes. Bench Press Form: 5 Fixes a Coach Would Make https://replabsfitness.com/bench-press-form https://replabsfitness.com/bench-press-form Wed, 14 Oct 2026 12:00:00 GMT Better bench press form from NSCA coaching guidance and research: the five-point body contact position, grip, wrists, bar path and a setup checklist. Do You Need to Train to Failure to Build Muscle? https://replabsfitness.com/training-to-failure https://replabsfitness.com/training-to-failure Wed, 14 Oct 2026 12:00:00 GMT No. Stopping 1-3 reps short of failure builds about as much muscle and strength. What the research says, plus reps in reserve explained simply. Do You Really Need 10,000 Steps a Day? What the Research Says https://replabsfitness.com/10000-steps https://replabsfitness.com/10000-steps Wed, 14 Oct 2026 12:00:00 GMT No. In data on 47,471 adults, the benefit of more steps leveled off at 6,000-8,000 a day for people 60+ and 8,000-10,000 for younger adults. Research-based. Does Cardio Kill Your Gains? What 43 Studies Found https://replabsfitness.com/does-cardio-kill-gains https://replabsfitness.com/does-cardio-kill-gains Wed, 14 Oct 2026 12:00:00 GMT A 43-study review found cardio doesn't blunt muscle growth or max strength. Here's where it can interfere and how to schedule runs around lifting days. Does Muscle Soreness Mean You Had a Good Workout? https://replabsfitness.com/muscle-soreness https://replabsfitness.com/muscle-soreness Wed, 14 Oct 2026 12:00:00 GMT No. Soreness tracks how new or unusual a workout was, not how much muscle you'll build. What the research says, and when soreness is a reason to see a doctor. Does Stretching Prevent Injuries? What the Research Says https://replabsfitness.com/stretching-and-injury https://replabsfitness.com/stretching-and-injury Wed, 14 Oct 2026 12:00:00 GMT Mostly no. In a review of 25 trials, stretching didn't lower sports injuries; strength training cut them to under a third. What to do instead. Research-based. Free Weights vs Machines: Which Builds More Muscle? https://replabsfitness.com/free-weights-vs-machines https://replabsfitness.com/free-weights-vs-machines Wed, 14 Oct 2026 12:00:00 GMT Neither has a proven edge for muscle growth. A research-based look at free weights vs machines, why strength is specific, and how to combine them. How Long Should You Rest Between Sets for Muscle and Strength? https://replabsfitness.com/rest-between-sets https://replabsfitness.com/rest-between-sets Wed, 14 Oct 2026 12:00:00 GMT Rest 2-3 minutes on big lifts and about 90 seconds to 2 minutes on small ones. A research-based guide with a rest-time table by lift and goal. How Much Protein Can Your Body Use in One Meal? https://replabsfitness.com/protein-per-meal https://replabsfitness.com/protein-per-meal Wed, 14 Oct 2026 12:00:00 GMT The 30-grams-per-meal limit doesn't hold up. What a 2023 study of 100 g doses found, and why your daily protein total matters most. Research-based. How Should You Warm Up Before Lifting? A Research-Based Routine https://replabsfitness.com/warm-up-before-lifting https://replabsfitness.com/warm-up-before-lifting Wed, 14 Oct 2026 12:00:00 GMT Get warm for 5-10 minutes, then do 3-4 ramp-up sets of your first lift. A research-based warm-up routine with a warm-up-set table for 100 kg / 225 lb. How to Start Running: Zero to 30 Minutes, Week by Week https://replabsfitness.com/start-running-from-zero https://replabsfitness.com/start-running-from-zero Wed, 14 Oct 2026 12:00:00 GMT A research-based run/walk plan to go from no running to 30 minutes nonstop, with the talk test to set your pace and what studies say about building up safely. Is Running Bad for Your Knees? What the Research Says https://replabsfitness.com/running-bad-for-knees https://replabsfitness.com/running-bad-for-knees Wed, 14 Oct 2026 12:00:00 GMT Recreational runners have less knee and hip arthritis than non-runners in the research. What the studies show, where they fall short, and how to run safely. What Do 150 Minutes of Exercise a Week Actually Look Like? https://replabsfitness.com/150-minutes-of-exercise https://replabsfitness.com/150-minutes-of-exercise Wed, 14 Oct 2026 12:00:00 GMT About 30 minutes of brisk walking on 5 days, or 75 minutes of running, plus 2 strength days. Four example weeks show how it fits. Research-based. Which Recovery Habits Actually Work? Ranked by the Research https://replabsfitness.com/recovery-habits-ranked https://replabsfitness.com/recovery-habits-ranked Wed, 14 Oct 2026 12:00:00 GMT Sleep and protein top the list. Massage and compression ease soreness, stretching barely helps, and ice baths may cost gains. A research-based ranking. Your First 12 Weeks of Lifting: A Week-by-Week Beginner Plan https://replabsfitness.com/beginner-lifting-plan https://replabsfitness.com/beginner-lifting-plan Wed, 14 Oct 2026 12:00:00 GMT A research-based 12-week beginner lifting plan: 3 full-body days, 8 to 12 reps, when to add weight, and why early strength gains are mostly neural.