Evidence map›Paper›PMID 40917803›Full record

SynthesisFrontiers in physiology2025

The effects of French contrast training on lower limb athletic performance in healthy adults: a systematic review and meta-analysis.

Ziren Zhao, Zhili Ma, Chao Wu, Xin Zheng, Tingyuan Liu, Nijiao Deng, Kaixiang Zhou

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Ziren Zhao *College of Physical Education and Health Science, Chongqing Normal University, Chongqing, China.
Zhili Ma *College of Sports and Health, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
Chao WuPhysical Education Department, University of International Business and Economics, Beijing, China.
Xin ZhengCollege of Physical Education and Health Science, Chongqing Normal University, Chongqing, China.
Tingyuan LiuCollege of Physical Education and Health Science, Chongqing Normal University, Chongqing, China.
Nijiao DengCollege of Physical Education and Health Science, Chongqing Normal University, Chongqing, China.
Kaixiang ZhouCollege of Physical Education and Health Science, Chongqing Normal University, Chongqing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: French Contrast Training (FCT) is a unique complex training (CT) method that has gained attention in sports science. Participant characteristics, training protocols, and control group types may influence the effects of FCT on lower limb athletic performance. Objective: The aim of this systematic review and meta-analysis was to assess the effects of FCT on jump, sprint, and maximal strength in healthy adults and to identify potential moderators of training effects. Methods: We searched five databases (PubMed, Web of Science, Embase, EBSCO, and CNKI). Seven randomized controlled trials with 195 participants were included. We used a random-effects model for the outcomes (jump, sprint, and maximal strength) to calculate the pooled effect sizes (standardized mean differences, SMD). Subgroup analyses and GRADE assessments were conducted to explore heterogeneity and assess the quality of evidence. Results: FCT significantly improved sprint (large effect: SMD = -0.92; 95% CI: 1.30 to -0.55; p < 0.001) and jump performance (moderate effect: SMD = 0.62; 95% CI: 0.33 to 0.91; p < 0.001). However, FCT failed to significantly improve maximal strength (small effect: SMD = 0.43; 95% CI: 0.04 to 0.89; p = 0.07). Subgroup analyses revealed that control group type, training frequency, training load, and participant characteristics were moderating variables influencing training effects. Conclusion: French contrast training is more effective than traditional resistance training for enhancing lower limbs explosive performance in healthy adults. However, there is not enough evidence to show it is superior to traditional complex training or that it improves maximal strength. Future research should aim to optimize FCT protocols and explore long-term adaptability across different populations. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php, identifier CRD420251000409.

Indexed as

athletic performanceFrench contrast trainingjumpmaximal strengthsprint

Identifiers

PMID40917803
PMCPMC12408690

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.