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Wyświetlanie 1-3 z 3
Tytuł:
Box Handling in the Loading and Unloading of Vans
Autorzy:
Lortie, M.
Baril-Gingras, G.
Powiązania:
https://bibliotekanauki.pl/articles/90133.pdf
Data publikacji:
1998
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
handling
box
handling techniques
field study
work analysis
obsługa
praca fizyczna
chwyt
wysiłek fizyczny
załadunek
rozładunek
Opis:
The handling of 2,306 boxes being loaded or unloaded from vans onto or from 4-wheeled trolleys by 31 handlers in a warehouse were characterized. Handling was videotaped and characterized through an analysis grid completed by three trained observers. The following execution parameters were observed: nature of the exertion applied by the upper limbs, plane and direction of the exertion, resulting displacement of the box, grip, use of the lower limbs and the back. Results show that execution parameters used by handlers vary considerably from those usually recommended or studied. For example, symmetric grips were rarely used (4%). The grip was modified during the handling of half the boxes. Significant knee flexion was rarely observed (3% of exertions). Each box was moved by applying an average o f . 3.5 different exertions. Exertions were mostly applied in a plane parallel to the shoulders; they were rarely executed in a strict sagittal plane (11%). The implication of these observations are discussed.
Źródło:
International Journal of Occupational Safety and Ergonomics; 1998, 4, 1; 3-18
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Background Music on Maximum Acceptable Weight of Manual Lifting Tasks
Autorzy:
Yu, R.
Powiązania:
https://bibliotekanauki.pl/articles/90671.pdf
Data publikacji:
2014
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
background music
manual materials handling
psychophysics
maximum acceptable weight of lift
tempo
tempo muzyki
muzyka
praca fizyczna
wysiłek fizyczny
Opis:
This study used the psychophysical approach to investigate the impact of tempo and volume of background music on the maximum acceptable weight of lift (MAWL), heart rate (HR) and rating of perceived exertion (RPE) of participants engaged in lifting. Ten male college students participated in this study. They lifted a box from the floor, walked 1–2 steps as required, placed the box on a table and walked back twice per minute. The results showed that the tempo of music had a significant effect on both MAWL and HR. Fast tempo background music resulted in higher MAWL and HR values than those resulting from slow tempo music. The effects of both the tempo and volume on the RPE were insignificant. The results of this study suggest fast tempo background music may be used in manual materials handling tasks to increase performance without increasing perceived exertion because of its ergogenic effect on human psychology and physiology.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2014, 20, 3; 437-445
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Praca koni zaprzęgowych na trasie do Morskiego Oka w sezonie 2021 r.
The work of sled horses on the road to Morskie Oko in the season of 2021
Autorzy:
Tischner, Marek
Tischner, Marian
Gospodarczyk, Aleksandra
Janta, Weronika
Męczyńska, Aleksandra
Wrońska, Barbara
Wąsik, Marta
Szczepańska, Ewa
Maciejczyk, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/22181049.pdf
Data publikacji:
2021
Wydawca:
Krajowa Izba Lekarsko-Weterynaryjna
Tematy:
droga do Morskiego Oka
konie
praca
ocena
rok 2021
Tatrzański Park Narodowy
użytkowanie zwierząt
konie zaprzęgowe
wysiłek fizyczny
wydolność fizyczna
tętno
wskaźnik restytucji
Wskaźnik Skuteczności Restytucji
working horses
physical effort
heart rate
Opis:
The aim of this study was to characterize the physical effort and the pace of restitution after the effort in 258 sled horses, working in the Tatra mountains on the route to Morskie Oko in year 2021. Under usual conditions a pair of horses is pulling the cart with 12 tourists and the coachman, what makes a total load of 1580 kg, on the distance of 7 km. The road is 82% uphill with the average slope of 4.6%. Control examination of the heart rate was performed before the exercise, immediately after work and after 10 minutes of rest. The analysis of the effort was made using the restructuring efficiency index restitution success rate, according to the formula: (t2 – t3 / t2 – t1) × 100%, where t1 means the frequency of heart contractions at rest, before endeavor, t2 – the frequency immediately after work, t3 – the frequency after 10 minutes of relaxation. On the basis of this analysis, it can be concluded that the average sledging work on the route to Morskie Oko, was a hard endeavor for 3.3% horses, a strenuous effort for 50% horses, a moderate effort for 44.8% horses and lightweight effort for 1.9% horses. Our data show, that for about 58% of horses, pulling carts with full load on the road to Morskie Oko was a much greater effort, compared to the control tests, when horses pulled carts without passengers in 2019. However, this assessment should take into account Covid-19 pandemic that caused a long break in the horses work in 2021, which could have negative impact on their physical condition.
Źródło:
Życie Weterynaryjne; 2021, 96, 12; 833-837
0137-6810
Pojawia się w:
Życie Weterynaryjne
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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