How fast can you get stronger without getting bigger?
Effects of a 20-Week High-Intensity Strength Training Program on Muscle Strength Gain and Cardiac Adaptation in Untrained Men: Preliminary Results of a Prospective Longitudinal Study
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
This study tested if lifting heavy weights for 20 weeks makes people stronger — even if they don’t lose fat or gain muscle mass.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 537 / 72
Evidence Score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
This study tested if lifting heavy weights for 20 weeks makes people stronger — even if they don’t lose fat or gain muscle mass.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 537 / 72
Evidence Score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Publication
Authors
Pamart N, Drigny J, Azambourg H, Remilly M, Macquart M, Lefèvre A, Lahjaily K, Parienti JJ, Rocamora A, Guermont H, Desvergée A, Ollitrault P, Tournoux F, Saloux E, Normand H, Reboursière E, Gauthier A, Hodzic A
Related Content
Claims (6)
Strength expression is movement-specific, but in untrained individuals, neuromuscular adaptation from compound movements provides greater initial strength gains than specificity-driven training.
Even though these guys got a lot stronger from lifting weights, their weight and body fat didn’t change much—they just got more muscle without losing fat.
When untrained young men lift heavy weights three times a week for five months, they get much stronger—some exercises more than double their original strength.
People get noticeably stronger in just 4 weeks of heavy weightlifting—even before their muscles get bigger—because their nerves learn to fire better.
Even though these guys lifted really heavy weights almost every day for five months, not a single one got hurt.