Weighted vests in CrossFit increase physiological stress during walking and running without changes in spatiotemporal gait parameters

This study quantified the physiological and biomechanical effects of the 20 lb (9.07 kg, males) and 14 lb (6.35 kg, females) weighted vest used in CrossFit, and whether they were predisposed to injury. Twenty subjects (10 males, 10 females) undertook walking (0%, 5% and 10% gradient) and running tri...

Full description

Saved in:
Bibliographic Details
Published in:Ergonomics 2022, Vol.65 (1), p.147-158
Main Authors: Gaffney, Christopher J., Cunnington, Jack, Rattley, Kate, Wrench, Elizabeth, Dyche, Chloe, Bampouras, Theodoros M.
Format: Article
Language:English
Subjects:
Biomechanical Phenomena
Biomechanics
Carbohydrates
CrossFit
Energy expenditure
Energy Metabolism
external load
Female
Females
Gait
Gait recognition
Heart Rate
Humans
injury
Lactic acid
Male
Males
Oxidation
Oxygen consumption
Oxygen uptake
Parameters
Physiological effects
Physiology
Running
sex-based differences
Stress (physiology)
Stress, Physiological
Training
Walking
weighted resistance exercise
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study quantified the physiological and biomechanical effects of the 20 lb (9.07 kg, males) and 14 lb (6.35 kg, females) weighted vest used in CrossFit, and whether they were predisposed to injury. Twenty subjects (10 males, 10 females) undertook walking (0%, 5% and 10% gradient) and running trials in two randomised study visits (weighted vest/no weighted vest). Physiological demand during walking was increased with the vest at 10% but not 5% or 0% with no change in gait variables. In the running trial, the weighted vest increased oxygen uptake (males; females) (+0.22L/min, p 
ISSN:0014-0139
1366-5847
DOI:10.1080/00140139.2021.1961876