Study | Timepoint of comparison | Â | Participant groups | HRV measure | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Time Domain | Frequency Domain | Non-Linear | ||||||||||||
N= | RRi | RMSSD | SDNN | PNN50 | TP | LF | HF | LF n.u. | HF n.u. | LF/HF | SD1 | SD2 | |||
Strahler & Ziegert [62] | 20 mins post to baseline | 50 |  | ↔* | ↔ |  |  |  |  |  |  |  |  |  |  |
20 mins post to stress |  | ↑* | ↑ |  |  |  |  |  |  |  |  |  |  | ||
20 mins post to immediately post |  | ↑* | ↑ |  |  |  |  |  |  |  |  |  |  | ||
Clemente-Suárez et al. [54] | 30 mins post to baseline | 38 |  |  | ↓ |  |  |  |  |  | ↑ | ↓ |  |  |  |
30 mins post to stress |  |  | ↔ |  |  |  |  |  | ↔ | ↔ |  |  |  | ||
Ghazali et al. [73] | 45 mins post to immediately post | 48 |  | ↔ |  |  | ↔ |  |  |  |  |  | ↔ |  |  |
75 mins post to 45 mins post |  | ↑ |  |  | ↑ |  |  |  |  |  | ↔ |  |  | ||
Dussault et al. [30] | 2 & 4 h post to baseline | 7 | Short flight supine |  |  |  |  | ↔↔ |  |  | ↔↔ | ↔↔ |  |  |  |
Short flight standing |  |  |  |  | ↔↔ |  |  |  |  | ↔↑ |  |  | |||
26 | Long flight supine |  | ↔↔ | ↔↔ | ↔↔ | ↔↔ |  |  | ↔↔ | ↔↔ | ↔↔ |  |  | ||
Long flight standing | ↓↓* | ↔↔ | ↔↔ | ↔↔ | ↔↔ |  |  | ↔↔ | ↔↔ | ↔↑ | ↔↔ | ↔↔ | |||
2 & 4 h post to immediately post | 7 | Short flight supine |  |  |  |  | ↔↔ |  |  | ↔↔ | ↔↔ |  |  |  | |
Short flight standing |  |  |  |  | ↔↔ |  |  |  |  | ↓↔ |  |  | |||
26 | Long flight supine | ↔↔ | ↔↔ | ↔↔ | ↔↔ | ↔↔ |  |  | ↔↔ | ↔↔ | ↔↔ |  |  | ||
Long flight standing | ↔↔* | ↓↓ | ↓↓ | ↔↔ | ↓↓ |  |  | ↑↑ | ↓↓ | ↑↑ | ↓↓ | ↓↓ | |||
Aasa et al. [78] | work free day 1 & 2 to preceding work day | 26 | Few health complaints |  |  |  |  |  | ↔↔ | ↔↔ |  |  |  |  |  |
Many health complaints |  |  |  |  |  | ↓↓ | ↑↑ |  |  |  |  |  | |||
Lyytikainen et al. [79] | Work free day 1, 2 & 3 to preceding work day | 14 | 24-h recording |  | ↑↔↑ | ↔↔↑ |  |  |  |  |  |  | ↔↓↓ |  |  |
Night time recording |  | ↔↑↔ | ↔↔↔ |  |  |  |  |  |  | ↔↓↔ |  |  |