高强度抗阻运动前摄入黑巧克力对健康年轻男性动脉硬化的急性影响

IF 2.4 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness Pub Date : 2025-08-25 DOI:10.1016/j.jesf.2025.08.005

Urara Hata , Yuto Hashimoto , Midori Natsume , Takanobu Okamoto

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引用次数: 0

摘要

目的探讨抗阻运动（RE）前摄入黑巧克力（DC）对动脉硬化的影响。方法12名健康成年男性（年龄23.0±1.0岁）采用随机交叉试验，在不同的日子分别进行DC或白巧克力（WC）摄入试验。参与者摄入50g含有1285毫克可可多酚的DC或50g不含多酚的等量WC。所有参与者都进行了5组5次重复，使用80%的1次最大重复（1RM）卧推和5组10次重复，使用70%的1RM二头肌弯曲。在巧克力摄入前（基线）测量肱-踝脉搏波速度（baPWV）、血压和心率；结果在两项试验中，与基线（基线：DC为1103±94 cm/s， WC为1108±167 cm/s； RE后立即：DC为1300±187 cm/s， WC为1325±178 cm/s； P < 0.05）相比，RE后立即的baPWV显著增加。在直流吸入试验中，与直接吸入相比，吸入后30分钟和60分钟的baPWV分别降至1210±180 cm/s和1155±134 cm/s （P < 0.05）。相比之下，在进食WC试验中，与立即进食相比，进食后60分钟的baPWV降至1222±176 cm/s （P < 0.05）。结论与摄入WC相比，运动前摄入DC可迅速降低运动后增加的动脉僵硬度。临床试验注册号：UMIN000052616。

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

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. Clinical Trials Registry Number: UMIN000052616.

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来源期刊

Journal of Exercise Science & Fitness 医学-运动科学

CiteScore

5.10

自引率

3.60%

发文量

审稿时长

31 days

期刊介绍： The Journal of Exercise Science and Fitness is the official peer-reviewed journal of The Society of Chinese Scholars on Exercise Physiology and Fitness (SCSEPF), the Physical Fitness Association of Hong Kong, China (HKPFA), and the Hong Kong Association of Sports Medicine and Sports Science (HKASMSS). It is published twice a year, in June and December, by Elsevier. The Journal accepts original investigations, comprehensive reviews, case studies and short communications on current topics in exercise science, physical fitness and physical education.