Evidence map›Paper›PMID 40989548›Full record

ArticleJournal of exercise science and fitness2025

Acute effect of dark chocolate intake before high-intensity resistance exercise on arterial stiffness in healthy young men.

Urara Hata, Yuto Hashimoto, Midori Natsume, Takanobu Okamoto

Abstract read
In one paragraph

Article in Journal of exercise science and fitness, 2025. 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. Article
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

4 authors.

Urara HataGraduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.
Yuto HashimotoResearch Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan.
Midori NatsumeFood Microbiology and Function Research Laboratories, Meiji Co., Ltd., Tokyo, Japan.
Takanobu OkamotoGraduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aims: This study investigated the effect of dark chocolate (DC) intake before resistance exercise (RE) on arterial stiffness. Methods: Twelve healthy adult males (age, 23.0 ± 1.0 years) performed DC or white chocolate (WC) intake trial on separate days in a randomized crossover trials. Participants consumed 50g of DC containing 1285 mg cocoa polyphenols or an isocaloric amount of WC 50g without polyphenols. All participants performed 5 sets of 5 repetitions using 80 % of the 1 repetition maximum (1RM) bench press and 5 sets of 10 repetitions using 70 % of the 1RM biceps curl. Brachial-ankle pulse wave velocity (baPWV), blood pressure, and heart rate were measured before chocolate intake (baseline); and before (at 60 min after chocolate intake), immediately after, and at 30 and 60 min after completing the RE. Results: In both trials, there was a significant increase in baPWV immediately after the RE compared with baseline (baseline: DC 1103 ± 94 cm/s, WC 1108 ± 167 cm/s; immediately after RE: DC 1300 ± 187 cm/s, WC 1325 ± 178 cm/s; P < 0.05). In the DC intake trial, baPWV decreased to 1210 ± 180 cm/s at 30 min and 1155 ± 134 cm/s at 60 min after RE, compared to immediately after RE (P < 0.05). In contrast, in the WC intake trial baPWV was decreased to 1222 ± 176 cm/s at 60 min after RE compared to immediately after RE (P < 0.05). Conclusion: These results suggest that in comparison with WC intake, DC intake before RE might quickly reduce post-exercise increased arterial stiffness.

Indexed as

Arterial complianceBeta stiffness indexCocoa polyphenolDark chocolatePulse wave velocityResistance exercise

Identifiers

PMID40989548
PMCPMC12450642

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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.