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Related Experiment Video

Updated: Mar 17, 2026

Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health

Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health

Published on: December 1, 2023

A meta-analysis to determine the dose response for strength development.

Matthew R Rhea¹, Brent A Alvar, Lee N Burkett

¹Department of Exercise and Wellness, Arizona State University, Mesa, AZ 85212, USA. matthew.rhea@asu.edu

Medicine and Science in Sports and Exercise

|March 6, 2003

Summary

Optimal strength training involves specific intensity, frequency, and volume. Untrained individuals benefit most from 60% intensity, 3 days/week, while trained individuals thrive at 80% intensity, 2 days/week, with four sets maximizing gains for both.

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Last Updated: Mar 17, 2026

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Published on: December 17, 2021

Area of Science:

Exercise Physiology
Sports Science
Biomechanical Engineering

Background:

Understanding the dose-response relationship in strength training is crucial for effective program design.
Existing research on strength gains offers limited insight into optimal training parameters across different intensities, frequencies, and volumes.
A comprehensive meta-analysis is needed to quantify these relationships.

Purpose of the Study:

To identify a quantifiable dose-response relationship for strength training.
To provide evidence-based guidelines for optimizing training intensity, frequency, and volume.
To inform the prescription of effective resistance training programs.

Main Methods:

A meta-analysis was conducted on 140 studies.
Included studies involved strength-training interventions with calculable effect sizes (ES).
A total of 1433 effect sizes were analyzed to determine dose-response trends.

Main Results:

Training intensity for maximal gains differs between untrained (60% of one repetition maximum) and trained (80% of one repetition maximum) individuals.
Optimal training frequency for maximal gains is 3 days/week for untrained and 2 days/week for trained individuals.
Four sets per muscle group appear to elicit maximal strength gains in both trained and untrained populations.

Conclusions:

Identified dose-response trends support progressive overload principles in resistance training.
Findings can guide the development of training programs to maximize the effort-to-benefit ratio.
This analysis provides a quantifiable basis for personalized strength training prescription.