Cold pressor test (mean (SD))
| Control(N=23) | Achilles tendinopathy (N=20) | p Values* | |
|---|---|---|---|
| Achilles tendon PPT (kPa)† | |||
| Before cold pressor test | 671.4 (215.7) | 253 (80.5) | <0.001 |
| During cold pressor test | 831.9 (213.3) | 289.4 (114.3) | <0.001 |
| CPM effect (kPa) | 160.5 (84.9) | 36.4 (68.1) | <0.001 |
| Water temperature (°C) | 9.0 (0.9) | 9.1 (0.8) | 0.73 |
| NPRS during cold pressor test | 6.2 (1.3) | 6.9 (1.6) | 0.15 |
*p Values correspond to independent t tests.
†Contralateral to the dominant hand for the control group and the (most) affected for the Achilles tendinopathy group.
°C, degrees Celsius; CPM, conditioned pain modulation; kPa, kilopascal; NRPS, Numerical Pain Rating Scale.