Cargando…

Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students

BACKGROUND: Low back pain caused by work, ranked the second after cardiovascular diseases, are among the most common reasons of patients’ referral to the physicians in Iran. This study aimed to determine the changes in back compressive force when measuring maximum acceptable weight of lift in Irania...

Descripción completa

Detalles Bibliográficos
Autores principales: SALEHI SAHL ABADI, Ali, NASL SARAJI, Gebraeil, MAZLOUMI, Adel, ZERAATI, Hojjat, HADIAN, Mohammad Reza, JAFARI, Amir Homayoun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Tehran University of Medical Sciences 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5149474/
https://www.ncbi.nlm.nih.gov/pubmed/27957465
_version_ 1782474010277183488
author SALEHI SAHL ABADI, Ali
NASL SARAJI, Gebraeil
MAZLOUMI, Adel
ZERAATI, Hojjat
HADIAN, Mohammad Reza
JAFARI, Amir Homayoun
author_facet SALEHI SAHL ABADI, Ali
NASL SARAJI, Gebraeil
MAZLOUMI, Adel
ZERAATI, Hojjat
HADIAN, Mohammad Reza
JAFARI, Amir Homayoun
author_sort SALEHI SAHL ABADI, Ali
collection PubMed
description BACKGROUND: Low back pain caused by work, ranked the second after cardiovascular diseases, are among the most common reasons of patients’ referral to the physicians in Iran. This study aimed to determine the changes in back compressive force when measuring maximum acceptable weight of lift in Iranian male students. METHODS: This experimental study was conducted in 2015 on 15 young male students were recruited from Tehran University of Medical Science. Each participant performed 18 different lifting tasks involving three lifting frequencies, with three lifting heights, and two box sizes. Each set of experiments was conducted during the 20 min work period using free-style lifting technique. The back compressive force evaluated with hand-calculation back compressive force method. Finally, Pearson correlation test, analysis of variance (ANOVA) and t-test were used for data analysis. RESULTS: The mean of back compressive force (BCF) for the small and large boxes at a frequency of 1lift/min at heights of F - K height, were 1001.02 (±86.74), 1210.57 (±93.77) Ib, respectively. There was a significant difference between mean BCF in terms of frequencies of lifts (P=0.02). The result revealed significant difference between frequencies of 1 lift/min and 6.67 lift/min (P=0.01). There was a significant difference between mean BCF in terms of the sizes of the two boxes (P=0.001). There was a significant relationship between the BCF and maximum acceptable weight of lift in all test conditions (P=0.001). CONCLUSION: BCF is affected by box size, lifting frequency and weight of load.
format Online
Article
Text
id pubmed-5149474
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher Tehran University of Medical Sciences
record_format MEDLINE/PubMed
spelling pubmed-51494742016-12-12 Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students SALEHI SAHL ABADI, Ali NASL SARAJI, Gebraeil MAZLOUMI, Adel ZERAATI, Hojjat HADIAN, Mohammad Reza JAFARI, Amir Homayoun Iran J Public Health Original Article BACKGROUND: Low back pain caused by work, ranked the second after cardiovascular diseases, are among the most common reasons of patients’ referral to the physicians in Iran. This study aimed to determine the changes in back compressive force when measuring maximum acceptable weight of lift in Iranian male students. METHODS: This experimental study was conducted in 2015 on 15 young male students were recruited from Tehran University of Medical Science. Each participant performed 18 different lifting tasks involving three lifting frequencies, with three lifting heights, and two box sizes. Each set of experiments was conducted during the 20 min work period using free-style lifting technique. The back compressive force evaluated with hand-calculation back compressive force method. Finally, Pearson correlation test, analysis of variance (ANOVA) and t-test were used for data analysis. RESULTS: The mean of back compressive force (BCF) for the small and large boxes at a frequency of 1lift/min at heights of F - K height, were 1001.02 (±86.74), 1210.57 (±93.77) Ib, respectively. There was a significant difference between mean BCF in terms of frequencies of lifts (P=0.02). The result revealed significant difference between frequencies of 1 lift/min and 6.67 lift/min (P=0.01). There was a significant difference between mean BCF in terms of the sizes of the two boxes (P=0.001). There was a significant relationship between the BCF and maximum acceptable weight of lift in all test conditions (P=0.001). CONCLUSION: BCF is affected by box size, lifting frequency and weight of load. Tehran University of Medical Sciences 2016-09 /pmc/articles/PMC5149474/ /pubmed/27957465 Text en Copyright© Iranian Public Health Association & Tehran University of Medical Sciences This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
spellingShingle Original Article
SALEHI SAHL ABADI, Ali
NASL SARAJI, Gebraeil
MAZLOUMI, Adel
ZERAATI, Hojjat
HADIAN, Mohammad Reza
JAFARI, Amir Homayoun
Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students
title Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students
title_full Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students
title_fullStr Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students
title_full_unstemmed Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students
title_short Changes in Back Compressive Force When Measuring Maximum Acceptable Weight of Lift in Iranian Male Students
title_sort changes in back compressive force when measuring maximum acceptable weight of lift in iranian male students
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5149474/
https://www.ncbi.nlm.nih.gov/pubmed/27957465
work_keys_str_mv AT salehisahlabadiali changesinbackcompressiveforcewhenmeasuringmaximumacceptableweightofliftiniranianmalestudents
AT naslsarajigebraeil changesinbackcompressiveforcewhenmeasuringmaximumacceptableweightofliftiniranianmalestudents
AT mazloumiadel changesinbackcompressiveforcewhenmeasuringmaximumacceptableweightofliftiniranianmalestudents
AT zeraatihojjat changesinbackcompressiveforcewhenmeasuringmaximumacceptableweightofliftiniranianmalestudents
AT hadianmohammadreza changesinbackcompressiveforcewhenmeasuringmaximumacceptableweightofliftiniranianmalestudents
AT jafariamirhomayoun changesinbackcompressiveforcewhenmeasuringmaximumacceptableweightofliftiniranianmalestudents