Presentation is loading. Please wait.

Presentation is loading. Please wait.

ASSESSMENT OF ENERGY EXPENDITURE IN WORKERS IN THE AUTOMOTIVE INDUSTRY ______________________________________________________ Dr. Michaela MACHAJOVÁ, Bc.Monika.

Similar presentations


Presentation on theme: "ASSESSMENT OF ENERGY EXPENDITURE IN WORKERS IN THE AUTOMOTIVE INDUSTRY ______________________________________________________ Dr. Michaela MACHAJOVÁ, Bc.Monika."— Presentation transcript:

1 ASSESSMENT OF ENERGY EXPENDITURE IN WORKERS IN THE AUTOMOTIVE INDUSTRY ______________________________________________________ Dr. Michaela MACHAJOVÁ, Bc.Monika THÓTOVÁ Trnava University Faculty of Health Sciences and Social Work Department of Public Health Trnava, Slovakia 3 rd International Conference and Exhibition on Occupational Health & Safety June 24-25, 2014 Valencia Conference Centre, Valencia, Spain

2 The main objective To assess energy expenditure of workers during work shift in automobile industry The intermediate objectives 1.To measure heart rate and energy consumption of workers by measurement device Polar RS To compare the results with the legal regulations of Slovak Republic 3.To find out the difference in levels of energy expenditure between individual work positions 4.Determine energy expenditure by using index method by Borsky and compare results against measured values  Key words: heart rate, energy expenditure, time frame, work load

3  Hall of coating  September – December 2013  5 work positions, 20 workers Selection of subjects   Inclusion criteria  Exclusion criteria Data collection  Face to face questionnaire  Observation  Stalking  Instrumental method /Polar RS 400/ Calculation of energetic expenditure  Harris – Benedict equation  Values of index method by Borsky } Time frame

4 Break HR min HR max 30 min 72 bpm 130 bpm

5 Table 1 Increase in heart rate and comparison with the permissible values ​​ and work position of employees in the age group y. ID Work position /sealing/ Increase HR /bpm/ Permissible value /bpm/ Exceeding /bpm/ averagelimitaveragelimit 1 Left/right side of the floor Left/right side of the floor Left/right side of the floor Engine compartment Engine compartment Tail hood Engine compartment Boot Doors in hinges Doors in hinges

6 Table 2 Comparison of observed and permissible values ​​ of energy expenditure of employees in the age group y. ID Work position /sealing/ Energy expenditure "netto" /kJ/ Permissible value /kJ/ Exceeding /kJ/ 1 Left/right side of the floor Left/right side of the floor Left/right side of the floor Engine compartment Engine compartment Tail hood Engine compartment Boot Doors in hinges Doors in hinges

7 Table 3 Comparison of energy expenditure during the work between work positions Work position Energy expenditure of workers /kJ/ Average /kJ/ Sealing of boot , Sealing of left/right side of the floor , Sealing of engine compartment , Sealing of doors in hinges , Sealing of tail hood , p NS

8 Table 4 Time frame and work energy expenditure - sealing left/right side of the floor Note: 1 Category by Borsky: A - posture, B - movement (walking), C – amount of muscular effort and degree of load; 2 energy expenditure; 3 included waiting for car body, failure, extra breaks Work operationCategory 1 Total time for work shift /min/ EE 2 "from" /kJ/ EE "to„ /kJ/ Preparation Astand 63 81,9182,7 Cmediumboth upper limbs Bwalking 80 m/min13221 Coat sealant Abend forward Cmediumboth upper limbs and trunk Bwalking 80 m/min13221 Spread sealant and set out acustic carpet Abend forward ,3548,1 Cmediumboth upper limbs and trunk Bwalking 80 m/min23391 Downtime 3 Astand89115,7 Break time 30 Total ,96965,5

9 Graph 1 Comparison of work energy expenditure by Polar RS 400 and index method by Borsky – sealing of left/right side of the floor

10 Table 5 Comparison of energy expenditure acquired by Polar RS 400 and index method by Borsky Work position Energy expenditure Polar RS 400 /kJ/ Energy expenditure Borsky /kJ/ p Sealing of boot ,3 – 6628, Average 6701,3 5848,5NS Sealing of left/right side of the floor ,9 – 6965, Average 6819,5 6080,2NS Sealing of engine compartment ,8 – 6550, Average 5957,3 5656,7 NS Sealing of door in hinges ,3 – 6156, Average 5623,0 5364,7NS Sealing of tail hood ,5 – 4141, Average 4612,8 3574,5NS

11  Small focus group of workers  Smoking  Body disproportion  High- frequency equipment near the measurement device

12  Increase of heart rate  8 workers /2 x only average value was exceeded/  3 x sealing of engine compartment  Energetic expenditure  4 workers /3 x heart rate was exceeded/  2 x sealing of left/right side of the floor  Comparison - work position  Difference was not confirmed  Comparison - Polar RS 400/Borsky  Difference was not confirmed

13


Download ppt "ASSESSMENT OF ENERGY EXPENDITURE IN WORKERS IN THE AUTOMOTIVE INDUSTRY ______________________________________________________ Dr. Michaela MACHAJOVÁ, Bc.Monika."

Similar presentations


Ads by Google