Synergistic Effects of High-Intensity Interval Training and Asparagus officinalis L. Root Extract Supplementation on Metabolic Regulation, Oxidative Stress, and Inflammation in Overweight and Obese Adults
Abstract
Excess adiposity is associated with increased oxidative stress and inflammation, which contribute to metabolic dysregulation. Both exercise training and bioactive plant-derived compounds have been explored as therapeutic strategies to mitigate these effects. Asparagus (Asparagus officinalis L.) root extract, rich in ecdysteroids such as 20-hydroxyecdysone (20E), exhibits potent antioxidant and anti-inflammatory activities. This randomized controlled trial investigated the combined effects of high-intensity interval training (HIIT) and asparagus root extract (ARE) supplementation on metabolic parameters, oxidative stress, inflammatory biomarkers, and white blood cell counts in overweight and obese adults. Seventy-two participants aged 18-30 years with a body mass index ≥ 23 kg/m2 were randomly assigned to one of four groups: control (CON), ARE supplementation only (ARE), HIIT only (HIIT), and combined intervention (COM). The HIIT protocol comprised a modified Tabata regimen of progressive bodyweight intervals at 80-90% and 40-50% of maximal perceived exertion, performed three times per week for 12 weeks. Participants in the ARE and COM groups received a daily oral dose of ARE providing 1.71 ± 0.24 mg/kg/day of 20E. Compared with the CON group, the HIIT group showed significant reductions in total cholesterol (TC), the TC/high-density lipoprotein cholesterol (HDLC) ratio, and blood glucose levels, alongside significant increases in HDLC and superoxide dismutase (SOD) activity…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design.
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