Back
 ENG  Vol.12 No.1 , January 2020
Effects of Anthropometry Variations on Physiological Parameters of Heart Rate, Oxygen Consumption, Aerobic Power While Performing Manual Operation at Fixed Vice Height
Abstract: This study investigated the effect of fixed height standing-workstation on different people with diverse anthropometry dimensions. Measurements of some anthropometric and physiological parameters are carried out as bases for the calculation of body mass index (BMI) and the determination of the maximum heart rate (HRmax) and aerobic power (VO2max) of individual subject while performing manual cutting operation with hacksaw on fixed vice height of 940 mm. Twenty subjects (S1 to S20) parted 2 mm thick square-pipe of 25 mm × 25 mm. Each subject carried out cutting operation in 5 replicates and their physiological parameters during activities are measured to determine their expended energy (EE) and oxygen consumption rate (VO2). The results showed that subject S4 with BMI of 20.76 kg/m2 has maximum cutting rate of 5.33 stroke/s, while subject S8 with BMI of 23.39 kg/m2 has minimum cutting rate of 0.92 stroke/s. There was a statistically significant effect on the interaction between BMI, EE and Cutting rate, with F = 827.54, P = 0.000, R2 = 0.967 and S = 1.749 units. Subject S11 was discovered to have VO2 (28.54 l/min) and VO2max (24.36 ml/min/kg), with highest value of EE (2.94 kcal/min). Wear rates of 1.86 teeth/s and 9.55 teeth/s have the same energy cost (EE = 0.87 kcal/min) but different cutting time of 36.65 s (S18) and 10.89 s (S20) respectively. This could explain in-part that excess 25.76 s utilized in operation time by subject S18 is responsible for keeping approximately 7.7 teeth intact as regards tool management. EE and Tool Wear Rate in one-way analysis of variance, were statistically significant (F = 45.87, P = 0.000, R2 = 54.69% and S = 1.617 units) at 0.05 level.
Cite this paper: Akanbi, O. , Afolabi, B. and Adegboye, O. (2020) Effects of Anthropometry Variations on Physiological Parameters of Heart Rate, Oxygen Consumption, Aerobic Power While Performing Manual Operation at Fixed Vice Height. Engineering, 12, 47-57. doi: 10.4236/eng.2020.121005.
References

[1]   Kong, Y.K., Lowe, B.D., Lee, S.J. and Krieg, E.F. (2008) Evaluation of Handle Shapes for Screwdriving. Applied Ergonomics, 39, 191-198.
https://doi.org/10.1016/j.apergo.2007.05.003

[2]   Byungjoon, B.J.K. (2012) Effect of Ergonomic Design Changes in Hand Tools on Physiological Cost and Subjective Ratings. International Journal of Occupational Safety and Ergonomics, 18, 267-277.
https://doi.org/10.1080/10803548.2012.11076932

[3]   Vyavahare, R.T. and Kallurkar, S.P. (2012) Anthropometric and Strength Data of Indian Agricultural Workers for Equipment Design: A Review. Agricultural Engineering International: CIGR Journal, 14, 102-114.
http://www.cigrjournal.org

[4]   George, S. (2010) Cutting Tool Applications: Saws & Sawing. American Machinist, Machining/Cutting.

[5]   Liang, M., Wei, Z., Damien, C., Fouad, B., François, G.M.L., Zhang, W., Bennis, F., Chablat, D. and Guillaume, F. (2009) Multi-Objective Optimisation Method for Posture Prediction and Analysis with Consideration of Fatigue Effect and Its Application Case. Computers & Industrial Engineering, 57, 1235-1246.
https://doi.org/10.1016/j.cie.2009.06.003

[6]   Arvidsson, I., Akesson, I. and Hansson, G.A. (2003) Wrist Movements among Females in a Repetitive, Non-Forceful Work. Applied Ergonomics, 34, 309-316.
https://doi.org/10.1016/S0003-6870(03)00042-5

[7]   Bisht, D.S. and Khan, M.R. (2013) Ergonomic Assessment Methods for the Evaluation of Hand Held Industrial Products: A Review. Proceedings of the World Congress on Engineering, London, 3-5 July 2013, Vol. 1.

[8]   Aghazadeh, F. and Mital, A. (1987) Injuries Due to Hand Tools. Applied Ergonomics, 18, 273-278.
https://doi.org/10.1016/0003-6870(87)90134-7

[9]   Afolabi, B.O., Adejumo, A.O.D. and Jokanola, O.O. (2015) Comparative Assessment of Two Methods in the Production of Fermented Cassava Flour (Láfún) on Manual Energy Expended Retting Time and the Product Quality. Food Science and Quality Management, 42, 20-28.

[10]   Tayyari, F. and Smith, J. (2003) Occupational Ergonomics Principles and Applications. Kluwer Academic Publishers, Boston.

[11]   Varghese, M.A., Saha, P.N. and Atreya, N. (1994) A Rapid Appraisal of Occupational Workload from a Modified Scale of Perceived Exertion. Ergonomics, 37, 485-491.
https://doi.org/10.1080/00140139408963665

[12]   Robergs, R.A. and Landwehr, R. (2002) The Surprising History of the “Hrmax = 220 − Age” Equation. Journal of Exercise Physiology Online, 5, 1-10.

[13]   Scott, P.A. and Charteris, J. (2004) In Cultural Ergonomics. Chap. 8, Elsevier, Oxford, 228, 242.

[14]   Afolabi, B.O., Adejumo, A.O.D. and Adegbulugbe, T.A. (2013) Ergonomics Effects on Output Capacities of Two Selected Locally Fabricated Engine Powered Maize Shellers. International Journal of Advances in Science and Technology, 6, 99-118.

[15]   Afolabi, B.O. and Akanbi, O.G. (2013) Effects of Body Mass Index on Aerobic Power (VO2 Max) and Energy Expenditure (EE): Case of Manual Load Lifting in Agro-Processing. International Journal of Scientific and Engineering Research, 4, 1718-1721.

 
 
Top