Evidence map›Paper›PMID 42388860›Full record

SynthesisFrontiers in endocrinology2026

High-intensity interval training and continuous glucose monitoring-derived glycemic outcomes in adults with type 2 diabetes: a systematic review and meta-analysis.

Jun Li, Jin Yuan, Yong Zhang, Quanwen Zeng, Haifeng Ma

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Frontiers in endocrinology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

5 authors.

Jun LiSchool of Athletic Performance, Shanghai University of Sport, Shanghai, China.
Jin YuanFaculty of Sports Science, Ningbo University, Ningbo, China.
Yong ZhangSchool of Physical Education, Anhui Polytechnic University, Wuhu, China.
Quanwen ZengSchool of Physical Education, Anhui Polytechnic University, Wuhu, China.
Haifeng MaSchool of Athletic Performance, Shanghai University of Sport, Shanghai, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Type 2 diabetes (T2D) is characterized by chronic hyperglycemia and marked within-day glucose fluctuations. Compared with conventional glycemic markers, continuous glucose monitoring (CGM)-derived metrics provide complementary information on overall glycemic exposure, postprandial responses, and glycemic variability. Although high-intensity interval training (HIIT) has shown promise for improving glycemic control in T2D, its effects on CGM-derived outcomes have not been systematically synthesized. Objective: To systematically review and meta-analyze the effects of HIIT on CGM-derived glycemic outcomes in adults with T2D, compared with non-exercise control (CON) or other exercise interventions. Methods: PubMed, Embase, Web of Science, the Cochrane Library, and EBSCOhost were searched from inception to January 26, 2026. Interventional studies comparing HIIT with CON or other exercise interventions and reporting CGM-derived outcomes were included. When data were suitable for quantitative pooling, pooled estimates were calculated from change-from-baseline values using fixed- or random-effects models. Risk of bias was assessed using RoB 2, RoB 2 for crossover trials, or ROBINS-I, and certainty of evidence was evaluated with GRADE. Results: Twelve studies involving 177 participants were included. Compared with CON, HIIT reduced 24-hour mean glucose, postprandial glucose, and time spent in hyperglycemia, while its effect on mean amplitude of glycemic excursions (MAGE) remained uncertain. Compared with moderate-intensity continuous training (MICT), HIIT further reduced 24-hour mean glucose and time spent in hyperglycemia, but no significant between-group difference was found for MAGE. Overall certainty of evidence ranged from very low to low. Conclusions: HIIT may improve selected CGM-derived glycemic outcomes in adults with T2D, particularly postprandial glucose and hyperglycemic exposure. Compared with MICT, HIIT may offer additional benefits for reducing 24-hour mean glucose and hyperglycemic time. However, confidence in these findings is limited by the small number of studies, methodological limitations, and heterogeneity.

Indexed as

Blood GlucoseDiabetes Mellitus, Type 2High-Intensity Interval TrainingContinuous Glucose MonitoringGlycemic ControlHumansPostprandial PeriodBlood Glucose24-hour mean glucosecontinuous glucose monitoringhigh-intensity interval trainingmeta-analysispostprandial glucosesystematic reviewtime spent in hyperglycemiatype 2 diabetes

Identifiers

PMID42388860
PMCPMC13318697

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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.