Navigation Links
Obesity linked to low endurance, increased fatigue in the workplace
Date:7/23/2014

FALLS CHURCH, Va. -- U.S. workplaces may need to consider innovative methods to prevent fatigue from developing in employees who are obese. Based on results from a new study published in the Journal of Occupational and Environmental Hygiene (JOEH), workers who are obese may have significantly shorter endurance times when performing workplace tasks, compared with their non-obese counterparts.

The study, conducted at Virginia Tech in Blacksburg, Va., examined the endurance of 32 individuals in four categories (non-obese young, obese young, non-obese older, and obese older) who completed three distinct tasks that involved a range of upper extremity demands -- hand grip, intermittent shoulder elevation, and a simulated assembly operation. Each task involved periods of work and rest, and included pacing demands similar to those experienced by workers in manufacturing settings.

"Our findings indicated that on average, approximately 40 percent shorter endurance times were found in the obese group, with the largest differences in the hand grip and simulated assembly tasks. During those tasks, individuals in the obese group also exhibited greater declines in task performance, though this difference was only evident among females," said Lora A. Cavuoto, PhD, an assistant professor in the department of industrial and systems engineering at the University at Buffalo, SUNY, in Buffalo, New York.

In addition to examining how obesity affected physical demands and capacity, Cavuoto and her colleagues looked at the interactive effect of obesity and age on endurance times.

"Previous studies have indicated that both age and obesity lead to decreased mobility, particularly when it comes to walking and performing lower extremity tasks. However, we found no evidence of an interactive effect of obesity and age on endurance times, which is contrary to previous findings," said Maury A. Nussbaum, PhD, a professor in the department of industrial and systems engineering at Virginia Tech, who also worked on the study.

Obesity is associated with physiological changes at the muscular level, including a decrease in blood flow, thereby limiting the supply of oxygen and energy sources. When performing sustained contractions, these physiological changes may lead to a faster onset of muscle fatigue. The prevalence of obesity has doubled over the past three decades, and this increase has been associated with more healthcare costs, higher rates of workplace injury, and a greater number of lost workdays.

According to Cavuoto and Nussbaum, the results from this and related studies will contribute to a better understanding of the ergonomic impacts of obesity and age, which is important for describing the link between personal factors and the risk of workplace injury.

"Workers who are obese may need longer rest breaks to return to their initial state of muscle function. Based on the increased fatigue found among workers who are obese, workplace designers may need to consider adding fixtures and supports to minimize the amount of time that body mass segments need to be supported. We believe our results will help to develop more inclusive ergonomic guidelines," said Cavuoto.


'/>"/>
Contact: Nicole Racadag
nracadag@aiha.org
703-846-0700
American Industrial Hygiene Association
Source:Eurekalert

Related medicine news :

1. Disrupted Sleep May Raise Risk for Obesity, Diabetes: Study
2. Obesitys Health Costs Double Earlier Estimates
3. Troubled Homes May Fuel Obesity in Girls
4. Childhood Obesity May Raise Odds of Adult Liver Cancer
5. Could the Childhood Obesity Epidemic Be Ebbing?
6. New research finds no association between white potato consumption (baked, boiled mashed) and obesity, Type 2 diabetes or systemic inflammation
7. Mayo Clinic: Obesity epidemic fueling rise in rheumatoid arthritis among women
8. Treating childhood obesity: A family affair
9. Rising Obesity Rates Might Mean More Rheumatoid Arthritis
10. Research May Point to New Obesity Treatments
11. U.S. Obesity Rate Set to Soar, Costing Billions: CDC
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/4/2016)... Watsonville, California (PRWEB) , ... May 04, 2016 ... ... powerful formulation of foundational nutrients that supports cellular and metabolic health. This synergistic ... and 400 mg free-form curcumin, along with 150 mg of reduced glutathione and ...
(Date:5/4/2016)... ... , ... Natalie Jill is a well respected lifestyle mentor and ... launch of her new book: Natalie Jill’s 7 Day Jump Start: Unprocess Your Diet ... start a new healthy lifestyle featuring simple recipes using MitoXcell’s raw cacao formula. ...
(Date:5/4/2016)... ... May 04, 2016 , ... Bayco Products has announced the ... dual-light flashlights in models NSP-9842XL and NSR-9844XL . , First previewed at ... uses 2 included CR-123 batteries to produce up to 650 lumens in a ...
(Date:5/4/2016)... ... May 04, 2016 , ... ... ankles, and elbows. Engineered with athletes in mind, OMNIFORCE offers high-performance, less ... ineffective circular knitting, common in the industry) produces premium flat-knit construction with ...
(Date:5/4/2016)... KS (PRWEB) , ... May 04, 2016 , ... ... Transtem™ Patient 2016, a powerful cellular therapy software application that helps blood ... treatments to patients. , Since Transtem’s initial launch, Mediware has continued to enhance ...
Breaking Medicine News(10 mins):
(Date:5/4/2016)... Research and Markets has ... Myeloma Market and Competitive Landscape Highlights - ...      (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ) , ... Highlights 2016, provides comprehensive insights into Multiple ... Myeloma market valuations and forecast, Multiple Myeloma ...
(Date:5/4/2016)... May 4, 2016 ... the  "Global Acute lymphocytic Leukemia Market and ... their offering.       (Logo: ... Lymphocytic Leukemia Market and Competitive Landscape Highlights ... Leukemia pipeline products, Acute Lymphocytic Leukemia epidemiology, ...
(Date:5/3/2016)... acquired a major investment from Sino-German High-Tech Fund to further expand product development, strengthen its disease modeling capabilities and ... ... ... ... ...
Breaking Medicine Technology: