A Fuzzy Logic-Based Personalized Method to Classify Perceived Exertion in Workplaces Using a Wearable Heart Rate Sensor

Figure 9

Perceived exertion: sweeping, cleaning windows, and stacking chairs. (a) Worker 3 (moderately habituated female—scalar values), (b) Worker 3 (moderately habituated female—linguistic values), (c) Worker 6 (not habituated male—scalar values), and (d) Worker 6 (not habituated male—linguistic values).

(a)

(b)

(c)

(d)