Table 2 Loadings for variables in factor 1 – the symptom severity factor
From: Data driven model of midportion achilles tendinopathy health created with factor analysis
Factor labels | |||||
|---|---|---|---|---|---|
Biopsychosocial | Lower extremity function | Body size | Load tolerance | Tendon structure | |
Pain catastrophizing scale | 0.83 | 0.07 | 0.04 | 0.03 | -0.09 |
PROMIS Social roles & activities | -0.75 | 0.03 | 0.08 | 0.15 | 0.07 |
PROMIS anxiety | 0.74 | 0.07 | -0.09 | -0.08 | -0.03 |
PROMIS pain interference | 0.71 | -0.11 | 0.19 | 0.17 | -0.02 |
PROMIS fatigue | 0.66 | -0.01 | -0.23 | -0.04 | 0.13 |
CSI | 0.64 | -0.11 | -0.23 | -0.02 | 0.02 |
PROMIS depression | 0.64 | -0.02 | -0.10 | -0.21 | -0.11 |
FAOS quality of life | -0.60 | -0.09 | -0.11 | -0.26 | 0.03 |
PROMIS sleep disturbances | 0.60 | -0.16 | -0.03 | -0.07 | -0.01 |
FAOS Sports | -0.53 | -0.11 | -0.13 | -0.20 | 0.04 |
TSK | 0.51 | 0.11 | 0.28 | -0.04 | -0.06 |
VISA-A | -0.50 | 0.21 | -0.01 | -0.33 | -0.06 |
PROMIS physical function | -0.47 | 0.11 | -0.12 | -0.24 | -0.21 |
Achilles tendon resting angle with knee flexed | 0.31 | 0.03 | 0.04 | 0.30 | 0.04 |