Analysis of the Heart Rate of Operators of Forwarding Machines during Work Activities
Abstract
:1. Introduction
2. Materials and Methods
2.1. Research Sample
2.2. Heart Rate Measurement
2.3. Sub-Activities
- Maintenance—This activity started the operator’s working day and included, for example, checking the hydraulic and engine oil levels, checking the air filter, checking the condition and inflation of the tires, checking and cleaning all tight spaces, checking for defects and cracks on the machine, optical inspection of the hydraulic crane (tightness of hoses, joints, and hydraulic cylinders), replenishment of fuel, etc.
- Driving—This activity included driving on public roads or crossing between workplaces in a particular forest stand.
- Forwarding—This was a part of the production process that included the work operations of clearing, load assembly, forwarding, sorting at the pick-up point, and landfilling of wood.
- Break—The operator used the break time for a snack or lunch, or to inspect the workplace.
2.4. Statistical Data Processing
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Operator/Activity | Mean Value (bpm) | Median (bpm) | Mode (bpm) | Frequency of Mode | Min. (bpm) | Max. (bpm) | Standard Deviation (bpm) |
---|---|---|---|---|---|---|---|
Operator 1/Maintenance | 89.0962 | 89.5000 | Multiple | 5.0000 | 68.0000 | 107.0000 | 8.2015 |
Operator 1/Driving | 80.8250 | 80.0000 | Multiple | 9.0000 | 67.0000 | 102.0000 | 6.3994 |
Operator 1/Forwarding | 90.6998 | 89.0000 | Multiple | 31.0000 | 74.0000 | 132.0000 | 8.9051 |
Operator 1/Break | 86.7963 | 84.5000 | 80.0000 | 6.0000 | 74.0000 | 118.0000 | 10.0684 |
Operator 2/Maintenance | 102.0357 | 100.0000 | 96.0000 | 4.0000 | 78.0000 | 125.0000 | 10.7685 |
Operator 2/Driving | 85.4296 | 85.0000 | 81.0000 | 13.0000 | 70.0000 | 115.0000 | 7.8201 |
Operator 2/Forwarding | 84.4548 | 86.0000 | Multiple | 41.0000 | 43.0000 | 113.0000 | 10.3740 |
Operator 2/Break | 76.5467 | 76.0000 | Multiple | 6.0000 | 64.0000 | 92.0000 | 6.4626 |
Operator 3/Maintenance | 83.7000 | 82.5000 | Multiple | 2.0000 | 58.0000 | 127.0000 | 15.5078 |
Operator 3/Driving | 75.9231 | 77.0000 | 80.0000 | 5.0000 | 44.0000 | 112.0000 | 11.8954 |
Operator 3/Forwarding | 69.0158 | 69.0000 | 74.0000 | 32.0000 | 42.0000 | 119.0000 | 10.7280 |
Operator 3/Break | 71.0092 | 70.0000 | Multiple | 8.0000 | 50.0000 | 95.0000 | 9.3189 |
Operator 4/Maintenance | 109.0488 | 112.0000 | 106.0000 | 4.0000 | 69.0000 | 122.0000 | 11.1981 |
Operator 4/Driving | 91.1786 | 99.5000 | 103.0000 | 4.0000 | 53.0000 | 129.0000 | 21.6519 |
Operator 4/Forwarding | 79.5497 | 78.0000 | 74.0000 | 26.0000 | 42.0000 | 125.0000 | 13.4346 |
Operator 4/Break | 71.3636 | 71.0000 | Multiple | 1.0000 | 57.0000 | 99.0000 | 12.3148 |
Operator 5/Maintenance | 90.6667 | 93.0000 | Multiple | 3.0000 | 61.0000 | 108.0000 | 11.5059 |
Operator 5/Driving | 79.8702 | 78.0000 | 77.0000 | 16.0000 | 54.0000 | 103.0000 | 7.4796 |
Operator 5/Forwarding | 84.3120 | 83.0000 | 83.0000 | 56.0000 | 51.0000 | 132.0000 | 10.6976 |
Operator 5/Break | 77.3125 | 76.5000 | Multiple | 2.0000 | 62.0000 | 95.0000 | 7.7522 |
Operator 6/Maintenance | 84.2609 | 79.0000 | Multiple | 2.0000 | 58.0000 | 115.0000 | 15.5599 |
Operator 6/Driving | 82.3882 | 82.0000 | 83.0000 | 8.0000 | 60.0000 | 103.0000 | 7.4739 |
Operator 6/Forwarding | 79.5571 | 78.0000 | 78.0000 | 34.0000 | 56.0000 | 126.0000 | 10.0631 |
Operator 6/Break | 73.7368 | 75.0000 | Multiple | 2.0000 | 49.0000 | 107.0000 | 12.1236 |
Operator 7/Maintenance | 97.9804 | 98.0000 | Multiple | 5.0000 | 78.0000 | 114.0000 | 8.6844 |
Operator 7/Driving | 82.8605 | 84.5000 | 89.0000 | 7.0000 | 54.0000 | 109.0000 | 11.5516 |
Operator 7/Forwarding | 83.8573 | 83.0000 | 83.0000 | 45.0000 | 57.0000 | 123.0000 | 9.4690 |
Operator 7/Break | 70.4490 | 70.0000 | 68.0000 | 4.0000 | 45.0000 | 104.0000 | 12.5051 |
Effect | Sum of Squares | Degree of Freedom | Mean Square | F Distribution | p-Value |
---|---|---|---|---|---|
Intersection | 9,576,663 | 1 | 9,576,663 | 85,555.53 | 0.00 |
Operator | 32,037 | 6 | 5339 | 47.70 | 0.00 |
Activity | 41,200 | 3 | 13,733 | 122.69 | 0.00 |
Operator * Activity | 51,414 | 18 | 2856 | 25.52 | 0.00 |
Error | 634,560 | 5669 | 112 | - | - |
Activity | Maintenance | Driving | Forwarding | Break |
---|---|---|---|---|
Maintenance | - | 0.000000 | 0.000000 | 0.00 |
Driving | 0.00 | - | 0.674682 | 0.00 |
Forwarding | 0.00 | 0.674682 | - | 0.00 |
Break | 0.00 | 0.000000 | 0.000000 | - |
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Sláma, D.; Mergl, V.; Pavlíková, E.A. Analysis of the Heart Rate of Operators of Forwarding Machines during Work Activities. Forests 2023, 14, 1348. https://doi.org/10.3390/f14071348
Sláma D, Mergl V, Pavlíková EA. Analysis of the Heart Rate of Operators of Forwarding Machines during Work Activities. Forests. 2023; 14(7):1348. https://doi.org/10.3390/f14071348
Chicago/Turabian StyleSláma, David, Václav Mergl, and Eva Abramuszkinová Pavlíková. 2023. "Analysis of the Heart Rate of Operators of Forwarding Machines during Work Activities" Forests 14, no. 7: 1348. https://doi.org/10.3390/f14071348