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| Study groups | Section | Mean (SD) Metabolic rate (W m-2) | Mean(SD) WBGT (°C) | Permissible limit (°C)* | Presence of heat stress (Yes/No) | P-value.** |
| Control | CNC | 314( 25.1) | 16.75( 0.4) | 26.7 | No | < 0.001 |
| BMD | 350( 54.2) | 35.4( 5.8) | 28 | Yes | ||
| Case | DISA | 355( 49.8) | 32.6( 5.3) | 28 | Yes | |
| Melting | 315( 63.4) | 30.8( 6.8) | 26.7 | Yes | ||
| *According to ACGIH recommended limit/** One-way ANOVA test/Mean (SD) is presented. | ||||||
