A Fuzzy Logic-Based Personalized Method to Classify Perceived Exertion in Workplaces Using a Wearable Heart Rate Sensor
Table 4
Activities in the experiments.
Activity
Description
Sweep the floor
One broom (1 kg) was used in this activity. A hallway (42 m long × 0.5 m width) was the area to sweep. The volunteers started in one corner of the hallway and swept in overlapping strokes in towards the end of the hallway.
Washing windows
The total dimensions of the window were 110 cm × 90 cm. The research participants started at the top and worked down the window. This activity was executed in indoor environments.
Stacking chairs
Placing the entire stack of chairs had a short walk away (3 m). This activity was done using iron chairs (7 kg). During these activities were created several stacks, each stack with 8 chairs; all experiments were done in an indoor hallway. Never were stacked more than ten chairs at a time.
