Chronic Stretching: What the Reviews Measured

Weeks of regular static stretching, with range of motion, maximal strength and muscle size as the outcomes, and range of motion after stretching stops: what the syntheses on this entry measured. Their conclusions are not yet recorded in this library, so this entry states no effect.

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Before you start

None, informational content.

When to seek a professional

Persistent joint pain or sudden loss of range of motion, refer to a physician or physical therapist.

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What the evidence says

What the sources say

The sources on this entry studied static stretching over weeks, with range of motion, maximal strength and muscle size as the outcomes. Warneke 2024 is a systematic review and meta-analysis of 42 studies and 1318 participants on chronic stretching, maximal strength and hypertrophy; Arntz 2023 is a systematic review with meta-analysis of 41 studies and 1178 participants on chronic stretching, strength and power across the lifespan; Thomas 2022 is a systematic review with meta-analysis of 35 studies and 1,179 participants with a meta-regression on whether stretch training influences strength. A second Warneke 2024 paper is a meta-analysis of 48 studies that re-examines earlier estimates. Konrad 2025 is a systematic review and meta-analysis of 13 studies and 556 participants on range of motion after stretch training stops. Warneke 2022 is a randomised trial of a long-duration stretching protocol. The sources' conclusions are not yet recorded in this library, so this entry states no effect of chronic stretching on flexibility, strength or muscle size, and nothing about what happens after stopping.

Common misconceptions

Gains happen only during the stretch, actually ROM adapts over weeks of consistent training.

What we won't claim

Stretching permanently lengthens muscles like taffy.
ROM gains transfer automatically to injury protection.

6 sources: 5 meta-analyses, 1 randomised controlled trial

Agreement: Direction recorded for 0 of 6 sources; not yet recorded for the rest.
The claim's outcome: Outcome not yet recorded
Certainty: No source states a certainty rating.
Authors: Sources share authors: K. Warneke (first author of 3 sources).

What each source measured and concluded (6)

meta-analysis · 2023

Arntz et al. (2023) — Chronic Effects of Static Stretching Exercises on Muscle Strength and Power in Healthy Individuals Across the Lifespan: A Systematic Review with Multi-level Meta-analysis

How it was read: read in full text
What the review says it includes: Systematic review with meta-analysis
Studies and participants, as stated: N = 1178 participants across 41 studies

meta-analysis · 2022

Thomas et al. (2022) — Does Stretching Training Influence Muscular Strength? A Systematic Review With Meta-Analysis and Meta-Regression

How it was read: read in full text
What the review says it includes: systematic review with meta-analysis
Studies and participants, as stated: N = 1,179 participants across 35 studies

meta-analysis · 2025

Konrad et al. (2025) — Detraining Effects Following Chronic Stretching Training on Range of Motion: A Systematic Review and Meta-Analysis

How it was read: read in full text
What the review says it includes: meta-analysis, systematic review
Studies and participants, as stated: N = 556 participants across 13 studies

meta-analysis · 2024

Warneke et al. (2024) — Effects of Chronic Static Stretching on Maximal Strength and Muscle Hypertrophy: A Systematic Review and Meta-Analysis with Meta-Regression

How it was read: read in full text
What the review says it includes: systematic review and meta-analysis
Studies and participants, as stated: N = 1318 participants across 42 studies

meta-analysis · 2024

Warneke et al. (2024) — Critical evaluation and recalculation of current systematic reviews with meta-analysis on the effects of acute and chronic stretching on passive properties and passive peak torque

How it was read: read in full text
What the review says it includes: meta-analysis
Studies and participants, as stated: N = [not reported] participants across 48 studies

randomised controlled trial · 2022

Warneke et al. (2022) — Influence of One Hour versus Two Hours of Daily Static Stretching for Six Weeks Using a Calf-Muscle-Stretching Orthosis on Maximal Strength

How it was read: read in full text

Key sources (6)

Every source below is shown with its study design and links to the original study. This is the audit trail.

meta-analysisChronic Effects of Static Stretching Exercises on Muscle Strength and Power in Healthy Individuals Across the Lifespan: A Systematic Review with Multi-level Meta-analysisFabian Arntz, A. Markov, David G. Behm et al. (2023) · Sports Medicine · 10.1007/s40279-022-01806-9 · full text

meta-analysisDoes Stretching Training Influence Muscular Strength? A Systematic Review With Meta-Analysis and Meta-RegressionE. Thomas, Salvatore Ficarra, J. Nunes et al. (2022) · Journal of Strength and Conditioning Research · 10.1519/jsc.0000000000004400 · full text

meta-analysisDetraining Effects Following Chronic Stretching Training on Range of Motion: A Systematic Review and Meta-AnalysisAndreas Konrad, K. Warneke, Olyvia Donti et al. (2025) · Sports Medicine - Open · 10.1186/s40798-025-00935-5 · full text

meta-analysisEffects of Chronic Static Stretching on Maximal Strength and Muscle Hypertrophy: A Systematic Review and Meta-Analysis with Meta-RegressionK. Warneke, L. Lohmann, D. Behm et al. (2024) · Sports Medicine - Open · 10.1186/s40798-024-00706-8 · full text

meta-analysisCritical evaluation and recalculation of current systematic reviews with meta-analysis on the effects of acute and chronic stretching on passive properties and passive peak torqueK. Warneke, L. Lohmann, Gerit Plöschberger, Andreas Konrad (2024) · European Journal of Applied Physiology · 10.1007/s00421-024-05564-6 · full text

randomised controlled trialInfluence of One Hour versus Two Hours of Daily Static Stretching for Six Weeks Using a Calf-Muscle-Stretching Orthosis on Maximal StrengthK. Warneke, M. Keiner, M. Hillebrecht, S. Schiemann (2022) · International Journal of Environmental Research and Public Health · 10.3390/ijerph191811621 · full text

Explore all 567 studies in Flexibility →

The full evidence base this focus area draws on, every study with its design and DOI.

What it is for

Move more freely