Effect of kaempferol ingestion on physical activity and sleep quality: a double-blind, placebo-controlled, randomized, crossover trial

Bibliographic Details
Title: Effect of kaempferol ingestion on physical activity and sleep quality: a double-blind, placebo-controlled, randomized, crossover trial
Authors: Yasutaka Ikeda, Aina Gotoh-Katoh, Shinpei Okada, Shuichi Handa, Teruyuki Sato, Tsubasa Mizokami, Bungo Saito
Source: Frontiers in Nutrition, Vol 11 (2024)
Publisher Information: Frontiers Media S.A., 2024.
Publication Year: 2024
Collection: LCC:Nutrition. Foods and food supply
Subject Terms: behavioral change, daily step count, sleep quality, Fitbit, kaempferol, Nutrition. Foods and food supply, TX341-641
More Details: BackgroundKaempferol (KMP), a flavonoid in edible plants, exhibits diverse pharmacological effects. Growing body of evidence associates extended lifespan with physical activity (PA) and sleep, but KMP’s impact on these behaviors is unclear. This double-blind, placebo-controlled, crossover trial assessed KMP’s effects on PA and sleep.MethodsA total of 33 city workers (17 males and 16 females) participated in this study. They were randomly assigned to take either 10 mg of KMP or placebo for 2 weeks in the order allocated, with a 7-day washout period in between. All participants wore an accelerometer-based wearable device (Fitbit Charge 4), which monitored daily PA, heart rate (HR), and HR variability during sleep.ResultsThe duration of wearing the device was 23.73 ± 0.04 h/day. HR decreased in each PA level, and the mean daily step count and distance covered increased significantly during KMP intake compared to placebo. The outing rate, number of trips, number of recreational activities, and time spent in recreation on weekends increased. Sleep quality improved following KMP intake. The decrease in HR and increase in RMSSD may be important in mediating the effects of these KMPs.ConclusionKMP leads to behavioral changes that subsequently improve sleep quality and potentially improve long-term quality of life.Clinical Trial Registrationhttps://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000048447, UMIN000042438.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2296-861X
Relation: https://www.frontiersin.org/articles/10.3389/fnut.2024.1386389/full; https://doaj.org/toc/2296-861X
DOI: 10.3389/fnut.2024.1386389
Access URL: https://doaj.org/article/522013481adb4acca348820ae985f663
Accession Number: edsdoj.522013481adb4acca348820ae985f663
Database: Directory of Open Access Journals
More Details
ISSN:2296861X
DOI:10.3389/fnut.2024.1386389
Published in:Frontiers in Nutrition
Language:English