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Effects of box handle position and carrying range on bi-manual carrying capacity for females.

Wu SP, Loiu Y, Chien TH - Ind Health (2015)

Bottom Line: The results show that the handle position has a significant effect on MAWC and overall RPE but no significant effect on HR.Carrying range has a significant effect on the MAWC and HR, but no significant effect on overall HR.Overall, this study confirms that the lower handle position with the W-W carrying range is the best combination for a two-person carrying task.

View Article: PubMed Central - PubMed

Affiliation: Department of Industrial Engineering and Management Information, Huafan University, Taiwan.

ABSTRACT
This study utilizes a psychophysical approach to examine the effects on carrying capacity for bi-manual carrying tasks involving different handle positions and carrying ranges. A total of 16 female subjects participated in the experiment in groups of two people, and each group of subjects performed the tasks in a random order with 12 different combinations of carrying task. The independent variables are handle position (upper, middle, lower) and carrying range (F-F: floor height carried to floor height, F-W: floor height carried to waist height, W-W: waist height carried to waist height, W-F: waist height carried to floor height), the dependent variable is the maximum acceptable carried weight (MAWC), heart rate (HR), and the rating of perceived exertion (RPE). The results show that the handle position has a significant effect on MAWC and overall RPE but no significant effect on HR. Carrying range has a significant effect on the MAWC and HR, but no significant effect on overall HR. The handle position and carrying range have a significant interaction on the MAWC and HR. The RPE for different body parts shows significant differences, and the hands feel the most tired. Overall, this study confirms that the lower handle position with the W-W carrying range is the best combination for a two-person carrying task.

No MeSH data available.


Related in: MedlinePlus

Interaction effects of the handle position and carrying range on the MAWC.
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fig_003: Interaction effects of the handle position and carrying range on the MAWC.

Mentions: As can be seen in Table 2, handle positionand carrying range have significant interaction effects on MAWC and heart rate. Therefore,optimum handle position and carrying range cannot be selected independently of one anotherwithout considering the combined effect of these two factors for different carrying tasks.For the F–F carrying range, as can be seen from Figs.3Fig. 3.


Effects of box handle position and carrying range on bi-manual carrying capacity for females.

Wu SP, Loiu Y, Chien TH - Ind Health (2015)

Interaction effects of the handle position and carrying range on the MAWC.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4591133&req=5

fig_003: Interaction effects of the handle position and carrying range on the MAWC.
Mentions: As can be seen in Table 2, handle positionand carrying range have significant interaction effects on MAWC and heart rate. Therefore,optimum handle position and carrying range cannot be selected independently of one anotherwithout considering the combined effect of these two factors for different carrying tasks.For the F–F carrying range, as can be seen from Figs.3Fig. 3.

Bottom Line: The results show that the handle position has a significant effect on MAWC and overall RPE but no significant effect on HR.Carrying range has a significant effect on the MAWC and HR, but no significant effect on overall HR.Overall, this study confirms that the lower handle position with the W-W carrying range is the best combination for a two-person carrying task.

View Article: PubMed Central - PubMed

Affiliation: Department of Industrial Engineering and Management Information, Huafan University, Taiwan.

ABSTRACT
This study utilizes a psychophysical approach to examine the effects on carrying capacity for bi-manual carrying tasks involving different handle positions and carrying ranges. A total of 16 female subjects participated in the experiment in groups of two people, and each group of subjects performed the tasks in a random order with 12 different combinations of carrying task. The independent variables are handle position (upper, middle, lower) and carrying range (F-F: floor height carried to floor height, F-W: floor height carried to waist height, W-W: waist height carried to waist height, W-F: waist height carried to floor height), the dependent variable is the maximum acceptable carried weight (MAWC), heart rate (HR), and the rating of perceived exertion (RPE). The results show that the handle position has a significant effect on MAWC and overall RPE but no significant effect on HR. Carrying range has a significant effect on the MAWC and HR, but no significant effect on overall HR. The handle position and carrying range have a significant interaction on the MAWC and HR. The RPE for different body parts shows significant differences, and the hands feel the most tired. Overall, this study confirms that the lower handle position with the W-W carrying range is the best combination for a two-person carrying task.

No MeSH data available.


Related in: MedlinePlus