Targeting workload to ameliorate risk of heat stress in industrial sugarcane workers
OBJECTIVE: The aim of this study was to quantify the physiological workload of manual laborers in industrial sugarcane and assess the effect of receiving a rest, shade, and hydration intervention to reduce heat stress exposure risk.
METHODS: In an observational study, physiological workload was evaluated for burned cane cutters (BCC), seed cutters (SC) and drip irrigation repair workers (DIRW) using heart rate (HR) recorded continuously (Polar®) across a work shift. Workers' percentage of maximal HR (%HRmax), time spent in different HR zones, and estimated core temperature (ECTemp) were calculated. The effect of increasing rest across two harvests was evaluated for BCC and SC.
RESULTS: A total of 162 workers participated in this study [52 BCC (all male), 71 SC (13 female) and 39 DIRW (16 female)]. Average %HRmax across a work shift was similar between BCC and SC (BCC: 58%, SC: 59%), but lower in DIRW (51%). BCC and SC spent similar proportions of work shifts at hard/very hard intensities (BCC: 13%, SC: 15%), versus DIRW who worked mostly at light (46%) or light-moderate (39%) intensities. SC maximum ECTemp reached 38.2°C, BCC 38.1°C; while DIRW only reached 37.7°C. Females performed at a higher %HRmax than males across work shifts (SC 64% versus 58%; DIRW 55% versus 49%). An additional rest period was associated with a lower average %HRmax across a work shift in BCC.
CONCLUSION: In this setting, BCC and SC both undertake very physiologically demanding work. Females maintained a higher workload than male co-workers. Regulated rest periods each hour, with water and shade access, appears to reduce physiological workload/strain.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:49 |
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| Enthalten in: |
Scandinavian journal of work, environment & health - 49(2023), 1 vom: 01. Jan., Seite 43-52 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lucas, Rebekah A I [VerfasserIn] |
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| Links: |
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| Themen: |
059QF0KO0R |
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| Anmerkungen: |
Date Completed 02.01.2023 Date Revised 08.10.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.5271/sjweh.4057 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM347247849 |
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| 100 | 1 | |a Lucas, Rebekah A I |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Targeting workload to ameliorate risk of heat stress in industrial sugarcane workers |
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| 500 | |a Date Revised 08.10.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a OBJECTIVE: The aim of this study was to quantify the physiological workload of manual laborers in industrial sugarcane and assess the effect of receiving a rest, shade, and hydration intervention to reduce heat stress exposure risk | ||
| 520 | |a METHODS: In an observational study, physiological workload was evaluated for burned cane cutters (BCC), seed cutters (SC) and drip irrigation repair workers (DIRW) using heart rate (HR) recorded continuously (Polar®) across a work shift. Workers' percentage of maximal HR (%HRmax), time spent in different HR zones, and estimated core temperature (ECTemp) were calculated. The effect of increasing rest across two harvests was evaluated for BCC and SC | ||
| 520 | |a RESULTS: A total of 162 workers participated in this study [52 BCC (all male), 71 SC (13 female) and 39 DIRW (16 female)]. Average %HRmax across a work shift was similar between BCC and SC (BCC: 58%, SC: 59%), but lower in DIRW (51%). BCC and SC spent similar proportions of work shifts at hard/very hard intensities (BCC: 13%, SC: 15%), versus DIRW who worked mostly at light (46%) or light-moderate (39%) intensities. SC maximum ECTemp reached 38.2°C, BCC 38.1°C; while DIRW only reached 37.7°C. Females performed at a higher %HRmax than males across work shifts (SC 64% versus 58%; DIRW 55% versus 49%). An additional rest period was associated with a lower average %HRmax across a work shift in BCC | ||
| 520 | |a CONCLUSION: In this setting, BCC and SC both undertake very physiologically demanding work. Females maintained a higher workload than male co-workers. Regulated rest periods each hour, with water and shade access, appears to reduce physiological workload/strain | ||
| 650 | 4 | |a Observational Study | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Research Support, U.S. Gov't, Non-P.H.S. | |
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| 700 | 1 | |a Skinner, Bethany D |e verfasserin |4 aut | |
| 700 | 1 | |a Arias-Monge, Esteban |e verfasserin |4 aut | |
| 700 | 1 | |a Jakobsson, Kristina |e verfasserin |4 aut | |
| 700 | 1 | |a Wesseling, Catharina |e verfasserin |4 aut | |
| 700 | 1 | |a Weiss, Ilana |e verfasserin |4 aut | |
| 700 | 1 | |a Poveda, Scarlette |e verfasserin |4 aut | |
| 700 | 1 | |a Cerda-Granados, Fatima I |e verfasserin |4 aut | |
| 700 | 1 | |a Glaser, Jason |e verfasserin |4 aut | |
| 700 | 1 | |a Hansson, Erik |e verfasserin |4 aut | |
| 700 | 1 | |a Wegman, David H |e verfasserin |4 aut | |
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