Table 1.
Equations used to estimate parameters of skin temperature.
| Outcome | Reference | ibuttons (n) | Anatomical positions. Fig. 1 | Participants (n) | Equations |
|---|---|---|---|---|---|
| Mean skin temperature | 14 ISO 9886–200441 (14-ISO) | 14 | From 1 to 14 | 9 | (Forehead*0.07) + (Neck*0.07) + (Right Scapula*0.07) + (Left Chest*0.07) + (Right Deltoid*0.07) + (Left Elbow*0.07) + (Right Abdomen*0.07) + (Left Hand*0.07) + (Left Lumbar *0.07) + (Right Thigh*0.07) + (Left Hamstring*0.07) + (Right Shinbone*0.07) + (Left Gastrocnemius*0.07) + (Right Instep*0.07) |
| 8 ISO 9886–200441 (8-ISO) | 8 | 1, 3, 4, 5, 6, 9, 10, 13 | 10 | (Forehead*0.07) + (Right Scapula*0.175) + (Left Chest*0.175) + (Right Deltoid*0.07) + (Left Elbow*0.07) + (Left Hand*0.05) + (Right Thigh*0.19) + (Left Gastrocnemius*0.2) | |
| 4 ISO 9886–200441 (4-ISO) | 4 | 2, 3, 9, 12 | 10 | (Neck*0.28) + (Right Scapula*0.28) + (Left Hand*0.16) + (Right Shinbone*0.28) | |
| Boon et al.15 (Boon) | 5 | 10, 16, 8, 9, 14 | 10 | (((Right Thigh*0.383) + (Right Clavicular *0.293) + (Right Abdomen*0.324)) + ((Left Hand + Right Instep)/2))/4) | |
| PROFITH | 26 | From 1 to 26 | 8 | (Forehead + Neck + Right Scapula + Left Chest + Right Deltoid + Left Elbow + Right Abdomen + Left Hand + Left Lumbar + Right Thigh + Left Hamstring + Right Shinbone + Left Gastrocnemius + Right Instep + Right Supraclavicular + Right Clavicular + Right Subclavicular + Left Forearm + Left top of forefinger + Right Forearm + Right top of forefinger + Left Shinbone + Right Gastrocnemius + Left Instep + Right Chest + Left Thigh)/26 | |
| Proximal skin temperature | Kräuchi et al.36 (Kräuchi) | 4 | 1, 10, 17, 8 | 10 | (Forehead*0.093) + (Right Thigh*0.347) + (Right Subclavicular*0.266) + (Right Abdomen*0.294)/4 |
| van Marken Lichtenbelt et al.26 (Van Marken) | 3 | 10, 17, 8 | 10 | (Right Thigh*0.383) + (Right Subclavicular*0.293) + (Right Abdomen*0.324) | |
| Schellen et al.32 (Schellen) | 4 | 3, 7, 4, 8 | 11 | (Right Scapula + Left Lumbar + Left Chest + Right Abdomen)/4 | |
| Boon et al.15 (Boon) | 3 | 10, 16, 8 | 10 | (Right Thigh*0.383) + (Right Clavicular*0.293) + (Right Abdomen*0.324) | |
| PROFITH | 5 | 8, 25, 4, 3, 2 | 11 | (Right Abdomen + Right Chest + Left Chest + Right Scapula + Neck)/5 | |
| Distal skin temperature | Kräuchi et al.36 (Krauchi) | 2 | 9, 14 | 11 | (Left Hand + Right Instep)/2 |
| PROFITH | 6 | 1, 19, 21, 14, 24, 9 | 11 | (Forehead + Left top of forefinger + Right top of forefinger + Right Instep + Left Instep + Left Hand)/6 | |
| Body temperature gradient | Boon et al.15 (Boon) | 5 | 9, 14, 10, 16, 8 | 10 | [(Left Hand + Right Instep)/2]- [(Right Thigh*0.383) + (Right Clavicular*0.293) + (Right Abdomen*0.324)] |
| PROFITH | 11 | 1, 19, 21, 14, 24, 9, 8, 25, 3, 2 | 11 | [(Forehead + Left top of forefinger + Right top of forefinger + Right Instep + Left Instep + Left Hand)/6]-[(Right Abdomen + Right Chest + Left Chest + Right Scapula + Neck)/5] | |
| Supraclavicular temperature gradient | PROFITH: (S-LC) | 2 | 15, 4 | 11 | (Right Supraclavicular(S)-Left Chest(LC)) |
| Lee et al.29 (Lee S-RC) | 2 | 15, 25 | 11 | (Right Supraclavicular(S)- Right Chest (RC)) | |
| PROFITH: (S-SB) | 2 | 15, 17 | 11 | (Right Supraclavicular(S)-Right Subclavicular(SB)) | |
| Peripheral temperature Gradient | Sessler et al.3 Right arm | 2 | 20, 21 | 11 | (Right Forearm-Right Top of forefinger) |
| PROFITH: Left arm | 2 | 18, 19 | 11 | (Left Forearm-Left Top of forefinger) | |
| PROFITH: Right Leg | 2 | 23, 14 | 11 | (Right Gastrocnemius- Right Instep) | |
| PROFITH: Left Leg | 2 | 13, 24 | 11 | (Left Gastrocnemius-Left Instep) |