In the patient group HRV parameters suggestive of decreased parasympathetic activity correlated with different FM symptoms, including its main complaint: pain intensity.
The group variables will be included, taking the control group as a reference, together with the sociodemographic variables (age and sex) and the baseline variables of the severity of the complaint (pain intensity and frequency).
Secondary outcomes include the patient's main complaints, pain intensity, medical consumption, functional status, quality of life, and psychological variables.
Secondary outcome measures include main complaints, pain intensity, medical consumption, coping, functional status, quality of life, and psychological variables.
Characteristics of shoulder complaints included intensity and duration of pain (3-6 months, 6-12 months, >12 months), previous shoulder pain, previous treatment, and dominant arm involvement.
12 months after initial sick leave, perceived reduced ability to walk far due to the complaints, pain intensity during activities, and physiotherapy prior to participation in the trial, were the strongest predictors for non RTW.
Descriptive statistics were used to present the course of complaints (pain intensity, global improvement, number of visits, NHP, SCL and GSRS), the frequencies of diagnostic and therapeutic interventions and the referrals over the 18-month follow-up.
Musculoskeletal and psychological complaints were recorded by monthly reports the four months preceding and 12 months succeeding a work session in the laboratory; complaint-severity indices were computed from complaint-severity scores (intensity score × duration score).
