Ranking Best quads exercises Exercises where quads are a main mover, best muscle growth rating first, with more weight on ratings several sources agree on. Growth per unit of fatigue and injury risk are shown when rated.
2 Barbell back squat Squat Barbell
Growth 4.4 5 sources
Worth the fatigue 2.0 2 sources
Injury risk 3.0 4 sources 5 Machine hack squat Squat Hack squat machine
Growth 4.2 5 sources
Worth the fatigue 4.2 5 sources
Injury risk 3.0 2 sources 6 Machine belt squat Squat Belt squat machine
Growth 4.5 2 sources
Worth the fatigue 5.0 1 source 7 Smith machine squat Squat Smith machine
Growth 4.5 2 sources
Worth the fatigue 4.0 1 source
Injury risk 3.0 2 sources 8 Machine leg press Squat Leg press machine
Growth 3.8 4 sources
Worth the fatigue 3.3 3 sources
Injury risk 2.0 1 source 16 Sissy squat Knee extension No equipment
Growth 3.5 2 sources 17 Leg extension Knee extension Leg extension machine
Growth 3.3 3 sources
Worth the fatigue 4.5 2 sources
Injury risk 2.0 1 source 18 Step-up Lunge Dumbbells
Growth 3.0 2 sources Not rated yet How to read the ratings Scores run 1-5 and average the sources behind each exercise. Each rating is a language-model summary of claims made in the named videos and studies, fact-checked against their transcripts. Treat them as hints, not verdicts: open an exercise to see every claim and its source.
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Rankings for other muscles : chest , front delts , side delts , rear delts , lats , upper back , traps , biceps , triceps , forearms , abs , obliques , lower back , glutes , hamstrings , adductors , calves , hip flexors