The impact of carrying load on physical performance during ascending evacuation movement
(2020) In Fire and Materials- Abstract
- This study investigates how ascending movement is affected by carrying load during a stair‐climbing motion. The methods adopted are based on exercise physiology and fire safety engineering. Experiments with 21 volunteers with mean (SD) age of 27 (4) have been carried out on a stair machine with or without carrying a mass of 8 kg, typical weight of a hand luggage or the average weight of an 8‐months old infant. Oxygen uptake (V˙O2), heart rate (HR), metabolic rate (M), and perceived exertion results showed a decrease in performance in the scenario with additional load. Participants climbed an average of 92 m without carrying a load, in comparison to 84 m when they were carrying it in a 5 minutes task. An average increase of 4% in the V˙O2... (More)
- This study investigates how ascending movement is affected by carrying load during a stair‐climbing motion. The methods adopted are based on exercise physiology and fire safety engineering. Experiments with 21 volunteers with mean (SD) age of 27 (4) have been carried out on a stair machine with or without carrying a mass of 8 kg, typical weight of a hand luggage or the average weight of an 8‐months old infant. Oxygen uptake (V˙O2), heart rate (HR), metabolic rate (M), and perceived exertion results showed a decrease in performance in the scenario with additional load. Participants climbed an average of 92 m without carrying a load, in comparison to 84 m when they were carrying it in a 5 minutes task. An average increase of 4% in the V˙O2 and the HR was found in the experiments with the additional mass. The strongest correlating variables observed were M and the vertical distance covered. Differences in perceived exertion occurred after four minutes into the exercise, with higher values in the case with additional load. These results show the need for considering the negative impact of carrying load while designing infrastructures in case of ascending evacuation and while developing evacuation modelling tools. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/62515120-e31f-4d04-a2de-6352a9a26de5
- author
- Velasco, Alejandra ; Halder, Amitava LU ; Kuklane, Kalev LU and Ronchi, Enrico LU
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Fire and Materials
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85083555213
- ISSN
- 1099-1018
- DOI
- 10.1002/fam.2844
- project
- Physical work capacity and biomechanical aspects as limiting factors in challenging environments
- language
- English
- LU publication?
- yes
- id
- 62515120-e31f-4d04-a2de-6352a9a26de5
- date added to LUP
- 2020-04-28 13:47:57
- date last changed
- 2024-05-29 11:52:05
@article{62515120-e31f-4d04-a2de-6352a9a26de5, abstract = {{This study investigates how ascending movement is affected by carrying load during a stair‐climbing motion. The methods adopted are based on exercise physiology and fire safety engineering. Experiments with 21 volunteers with mean (SD) age of 27 (4) have been carried out on a stair machine with or without carrying a mass of 8 kg, typical weight of a hand luggage or the average weight of an 8‐months old infant. Oxygen uptake (V˙O2), heart rate (HR), metabolic rate (M), and perceived exertion results showed a decrease in performance in the scenario with additional load. Participants climbed an average of 92 m without carrying a load, in comparison to 84 m when they were carrying it in a 5 minutes task. An average increase of 4% in the V˙O2 and the HR was found in the experiments with the additional mass. The strongest correlating variables observed were M and the vertical distance covered. Differences in perceived exertion occurred after four minutes into the exercise, with higher values in the case with additional load. These results show the need for considering the negative impact of carrying load while designing infrastructures in case of ascending evacuation and while developing evacuation modelling tools.}}, author = {{Velasco, Alejandra and Halder, Amitava and Kuklane, Kalev and Ronchi, Enrico}}, issn = {{1099-1018}}, language = {{eng}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Fire and Materials}}, title = {{The impact of carrying load on physical performance during ascending evacuation movement}}, url = {{http://dx.doi.org/10.1002/fam.2844}}, doi = {{10.1002/fam.2844}}, year = {{2020}}, }