Impacts of frequency and posture on body mass index in manual handling tasks

Tetteh, Edem G.; Latif, Niaz; McGlothlin, James D.; Peters, Jerry

doi:10.1002/hfm.20155

Cited by 10 publications

(10 citation statements)

References 16 publications

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“…(18) Fatigue-induced reductions in muscle capacity can lead to increased risk of injury, as well as decreased work performance. (19) Recently, Tetteh et al (20) investigated fatigue of the upper back muscles during two manual handling tasks, concluding that a higher BMI leads to a longer time to complete self-paced tasks and decreased performance. Movement time increases have also been observed for upper extremity tasks requiring controlled aiming.…”

Section: Introductionmentioning

confidence: 99%

The Influences of Obesity and Age on Functional Performance During Intermittent Upper Extremity Tasks

Cavuoto

Nussbaum

2014

Journal of Occupational and Environmental Hygiene

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In this study, the main and interactive effects of obesity and age on functional performance were assessed during intermittent exertions involving the upper extremity. The prevalence of obesity has doubled over the past 30 years and this increase is associated with higher health care costs, rates of workplace injury, and lost workdays. Obesity and aging can modify job demands and affect worker capacity in terms of muscular and psychomotor function. However, there is a lack of empirical studies quantifying the work-relevant (or ergonomic) impacts related to task demands, capacities, and their potential imbalance. Eight obese and eight non-obese participants from each of two age groups (18-25 and 50-65 years) completed three endurance tasks involving fixed levels of task demands: hand grip, shoulder flexion, and a simulated assembly task using the upper extremity. Measures of functional performance including endurance, discomfort, motor control, and task performance were recorded for each of the task conditions. Endurance times were ∼60% longer for the non-obese group, and older participants had longer endurance times; however there was no evidence of interactive effects of obesity and age. Obesity also impaired functional performance, as indicated by higher rates of strength loss, increases in discomfort, and declines in task performance. These observed impairments may reflect underlying physiological differences among individuals who are obese, but that are independent of age. Obesity-related impairments may have implications for the design of work duration and demand level to prevent fatigue development for workers who are obese.

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Section: Introductionmentioning

confidence: 99%

The Influences of Obesity and Age on Functional Performance During Intermittent Upper Extremity Tasks

Cavuoto

Nussbaum

2014

Journal of Occupational and Environmental Hygiene

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“…Therefore, the change of health mechanism is related to senility and a physical/mental disability. Especially, obesity is a chronic condition resulting from an excess in body fat, and can lead to brain hemorrhage, arteriosclerosis, diabetes, hyperlipidemia, hypertension, metabolic syndrome, and so forth, in all ages and backgrounds (Tetteh et al, 2009).…”

Section: Literature Reviewmentioning

confidence: 99%

“…Also, an increase in total plasma cholesterol levels with age was shown, and the female participants had higher cholesterol levels than did the males. Earlier studies have shown that the Elderly may cause increased risk of hypertension and high cholesterol and a strong correlation between age and health status (Tetteh et al, 2009).…”

Section: Literature Reviewmentioning

confidence: 99%

Effectiveness of the Smart Healthcare Glove System for Elderly Persons with Hypertension

Kim

Cho

2012

Hum Ftrs & Erg Mfg Svc

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With the global population growth of elderly persons, there has been a tendency toward higher quality of life, along with continually increasing expectations and needs for enhanced health care for elderly persons. The purposes of this research were to develop the E‐textile–based Smart Healthcare Glove System (SHGS) with Transcutaneous Electrical Nerve Stimulator (TENS) as a health care device for the elderly hypertensive, and to evaluate the effectiveness of SHGS for hypertensive treatment. The SHGS consists of an inner glove with sensor‐embedded conductive textiles; an outer glove; a TENS for electrical stimulation; and an arm band for a ubiquitous health care wearable device. The SHGS with TENS is used for hypertension treatment and care by electrically stimulating meridian points on the palm. The health care performance test was carried out with a dozen elderly female patients (six Senior‐old‐ageing and six Old‐ageing groups) suffering from hypertension, and was conducted to measure blood pressure and pulse rate before and after wearing the SHGS with TENS for 15 min. Significantly, this study found that the mean blood pressure of all 12 patients after wearing SHGS decreased from 142.58 ± 9.90/82.46 ± 4.45 mmHg to 119.83 ± 9.23/75.79 ± 4.90 mmHg in systolic blood pressure (p < .001) as well as diastolic blood pressure (p < .01) by paired t test. Also, the mean blood pressure of chronic hypertensive patients decreased significantly from 149.25 ± 9.45/82.75 ± 2.70 mmHg to 125.33 ± 9.78/76.67 ± 3.31 mmHg in systolic blood pressure (p < .001). In addition, there was a significant difference in blood pressure before and after wearing the SHGS by Wilcoxon signed rank test (p value: 0.0313, 0.0005). These results suggest that SHGS decreases blood pressure, improves irregular blood circulation, and can be an effective high‐tech health care device for elderly hypertensive patients. Although this study used only elderly participants, the results of the study may be generalized to hypertensive patients at any age. © 2012 Wiley Periodicals, Inc.

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“…Psychosocial risk exposures and MSDs across working‐age men and women were investigated by Collins and O'Sullivan (2010). Tetteh, Latif, McGlothlin, & Peters (2009) investigated the impacts of lift frequency and posture on body mass index. Kwon, You, & Jung (2009) examined the maximum acceptable frequencies (motions/min) of upper‐extremity motions in the sagittal plane at different forces.…”

Section: Literature Reviewmentioning

confidence: 99%

An Experimental Study to Evaluate the Effect of Ambient Temperature during Manual Lifting and Design of Optimal Task Parameters

Singh

Batish

Singh

et al. 2011

Hum Ftrs & Erg Mfg Svc

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In the present study, the effect of lifting task parameters on the heart rate and oxygen uptake of workers during manual lifting tasks in different ambient conditions was evaluated. The experiments conducted in two different temperature conditions showed a significantly higher oxygen uptake and heart rate in colder conditions as compared to warmer conditions. Three other factors, namely, load, lifting frequency, and vertical distance were found to significant affect the responses. Various combinations of significant factors were used to calculate oxygen uptake and heart rate. These were then compared with the safe limits as per the maximum aerobic capacity of workers. Based on these comparisons, the safe combinations were identified that can be used to design lifting tasks in varied ambient conditions. The study further concluded that lifting tasks performed in winter should have different relaxation or fatigue allowances built into the cycle time of the task to compensate for higher exertion. © 2011 Wiley Periodicals, Inc.

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Impacts of frequency and posture on body mass index in manual handling tasks

Cited by 10 publications

References 16 publications

The Influences of Obesity and Age on Functional Performance During Intermittent Upper Extremity Tasks

The Influences of Obesity and Age on Functional Performance During Intermittent Upper Extremity Tasks

Effectiveness of the Smart Healthcare Glove System for Elderly Persons with Hypertension

An Experimental Study to Evaluate the Effect of Ambient Temperature during Manual Lifting and Design of Optimal Task Parameters

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