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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

Photograph of the experimental box with three different box handle positions(upper, middle, lower) on each side.
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fig_001: Photograph of the experimental box with three different box handle positions(upper, middle, lower) on each side.

Mentions: This study uses a randomized complete block factorial design, with blocking on eachgroup, to examine the effects of different carrying ranges and box handle positions on thebi-manual carrying capacity of females. The independent variables were carrying range andbox handle position. The handle position had three levels, upper, middle and lower, asshown in Fig. 1Fig. 1.


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

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

Photograph of the experimental box with three different box handle positions(upper, middle, lower) on each side.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

fig_001: Photograph of the experimental box with three different box handle positions(upper, middle, lower) on each side.
Mentions: This study uses a randomized complete block factorial design, with blocking on eachgroup, to examine the effects of different carrying ranges and box handle positions on thebi-manual carrying capacity of females. The independent variables were carrying range andbox handle position. The handle position had three levels, upper, middle and lower, asshown in Fig. 1Fig. 1.

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