Resistance values according to prediction equations from the present study (average resistance between 4–30 Hz), and from three previous studies including younger adults
| Ref. | Males | Female | ||
| 70 yrs | 90 yrs | 70 yrs | 90 yrs | |
| Present study | 0.233 | 0.215 | 0.272 | 0.251 |
| Pasker et al. 23 | 0.269 | 0.269 | 0.305 | 0.305 |
| Pasker et al. 24 | 0.249 | 0.238 | 0.285 | 0.271 |
| Govaerts et al. 25 | 0.264 | 0.264 | 0.274 | 0.274 |
Values given are those calculated for males (height: 1.75 m; weight: 80 kg) and females (height: 1.55 m; weight: 50 kg) aged 70 and 90 yrs. Regression equations from the present study yield results which are up to 25% lower than results from previous studies.