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Peak frequencies charactering power spectrum density (PSD); see Figure 6.
| Subject no. | Fundamental frequency (: FF) | Frequency band | ||||
|---|---|---|---|---|---|---|
| 1–2 [Hz] | 2–3 [Hz] | 3–4 [Hz] | 4–5 [Hz] | 5–6 [Hz] | ||
| 1 | 1.1 | 1.1 (FF × 1) | 2.3 (FF × 2) | 3.3 (FF × 3) | — | 5.6 (FF × 5) |
| 2 | 1.1 | 1.1 (FF × 1) | 2.2 (FF × 2) | 3.2 (FF × 3) | 4.4 (FF × 4) | 5.4 (FF × 5) |
| 3 | 1.1 | 1.1 (FF × 1) | 2.4 (FF × 2) | 3.3 (FF × 3) | 4.4 (FF × 4) | — |
| 4 | 1.4 | 1.4 (FF × 1) | 2.8 (FF × 2) | — | 4.2 (FF × 3) | — |
| 5 | 1.3 | 1.3 (FF × 1) | 2.6 (FF × 2) | 3.9 (FF × 3) | — | 5.3 (FF × 4) |
