Squat, stoop, or semi-squat: a comparative experiment on lifting technique.
10.1007/s11596-012-1009-3
- Author:
Zhenglun WANG
1
;
Lei WU
;
Jingzhi SUN
;
Lihua HE
;
Sheng WANG
;
Lei YANG
Author Information
1. Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. zhlwang@mails.tjmu.edu.cn
- Publication Type:Journal Article
- MeSH:
Adult;
Biomechanical Phenomena;
physiology;
Female;
Humans;
Lifting;
Male;
Muscle Fatigue;
physiology;
Muscle, Skeletal;
physiology;
Young Adult
- From:
Journal of Huazhong University of Science and Technology (Medical Sciences)
2012;32(4):630-636
- CountryChina
- Language:English
-
Abstract:
There are actually no sufficient data for lifting technique assessment. A laboratory study was undertaken to determine the effect of 3 regular lifting techniques on erector muscle activation, cardiovascular strain and subjective response. Thirty student volunteers participated in the study, and were required to lift a weight with different techniques. Stoop-, squat-, semi-squat-lifting resulted in 3, 2 and 1 time of the highest percentage of the maximum voluntary electrical activation (MVE%) respectively. In the same order, the lowest median frequency (MF) existed 1, 1 and 2 times. Muscle fatigue was 4 times in squat, 36 in semi-squat and 43 in stoop lifting. Heart rate was the highest in squat and lowest in stoop respectively, with a middle level in semi-squat lifting. It may be recommended to adopt mainly the semi-squat technique for daily lifting works. For heavy lifting, it should use the squat technique. Stoop lifting may also be used alternatively but for light things.
