Accepted for/Published in: JMIR Serious Games
Date Submitted: Aug 28, 2023
Open Peer Review Period: Aug 27, 2023 - Oct 22, 2023
Date Accepted: Apr 25, 2024
(closed for review but you can still tweet)
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
The Effects of Supplementation with Fruit and Vegetable Enzymes on Aerobic Capacity and Blood Lactate Response in Elderly Individuals af-ter Extremely Low-volume High-Intensity Interval Exercise: A Feasibil-ity Study on Exercise Design Using Exergaming
ABSTRACT
Background:
The potential role of fruit and vegetable enzymes might have positive effect in modulating fatigue in elderly population after extremely low-volume high-intensity interval exercise (ELVHIIE) though ex-ergaming
Objective:
We aimed to investigate the impact of a 14-day supplementation with fruit and vegetable enzymes on aerobic capacity and blood lactate response in elderly individuals following ELVHIIE through exer-gaming.
Methods:
Sixteen female elderly participants were recruited in this study (Pairwise Grouping Based on Lactate Levels into an enzyme group and a placebo group). Participants engaged in exergaming using Ninten-do Switch Ring Fit Adventure, which involved ELVHIIE comprising 8 sets of 20 seconds of maximal effort exercise with 30 seconds of rest between sets, resulting in a total exercise duration of 380 seconds. Blood lactate levels, heart rate, rating of perceived exertion, and training impulse (TRIMP) were as-sessed. The enzyme group received fruit and vegetable enzyme supplementation twice daily (30 c.c.) for 14 days.
Results:
The enzyme group exhibited significantly lower blood lactate levels compared to the placebo group. Specifically, after the 4th and 8th exercise sessions, the enzyme group had lower lactate levels, respec-tively. Moreover, at 5- and 10-minutes post-exercise, the enzyme group also demonstrated lower lactate lev-els, respectively. Both groups exceeded 85% of their estimated maximum heart rate during exercise.
Conclusions:
Supplementation with fruit and vegetable enzymes significantly reduced blood lactate levels, suggest-ing a potential role in modulating lactate production or clearance during and after exercise. Clinical Trial: National Cheng Kung University Human Research Ethics committee, Taiwan (ID: 112-419).
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