Table 3. Proprioceptive control strategy in individuals with COPD in relation to inspiratory muscle strength.
| Trial | COPD group | ||||||
| PImax >85% (n = 9) | PImax <85% (n = 9) | p-value | |||||
| CoP displacement during ankle muscle vibration (cm) | −8.7 | ± | 2.2 | −11.2 | ± | 3.3 | 0.037 |
| CoP displacement during back muscle vibration (cm) | 3.9 | ± | 2.6 | 2.0 | ± | 2.0 | 0.055 |
| CoP displacement during ankle-back muscle vibration (cm) | −6.1 | ± | 3.6 | −8.1 | ± | 2.8 | 0.037 |
| RPW | 0.71 | ± | 0.11 | 0.81 | ± | 0.11 | 0.013 |
Data are presented as mean ± standard deviation. COPD: chronic obstructive pulmonary disease; PImax: maximal inspiratory pressure; CoP: center of pressure; RPW: relative proprioceptive weighting ratio; cm: centimeter; Significant p-values (p<0.05) in bold.