Items | Before enrollment (week −2-(−1) | Intervention period (weeks 1–12) | End of intervention (week 13) | Follow-up period (weeks 13–24) | End of follow-up (week 25) | |
---|---|---|---|---|---|---|
Inclusion criteria | × |  |  |  |  | |
Exclusion criteria | × |  |  |  |  | |
Informed consent | × |  |  |  |  | |
Baseline measurement | × |  |  |  |  | |
Randomization and allocation | × |  |  |  |  | |
Lumbar muscle strength | × |  | × |  | × | |
Lumbar proprioception function | × |  | × |  | × | |
Self-reported symptom intensity | × |  | × |  | × | |
Stress | × |  | × |  | × | |
Self-efficiency | × |  | × |  | × | |
Attention | × |  | × |  | × | |
Physical fitness | Cardiopulmonary function | × |  | × |  | × |
Flexibility | × |  | × |  | × | |
Hand grip strength | × |  | × |  | × | |
Self-esteem | × |  | × |  | × | |
Mood and mindfulness | × |  | × |  | × | |
Quality of life | × |  | × |  | × | |
Quality of sleep | × |  | × |  | × | |
Adverse events |  | × |  | × |  | |
Self-report diaries |  | × |  | × |  |