Fibromyalgia and Sedentarism: Which Came First, the Chicken or the Egg?

Fibromyalgia is a chronic disease that causes widespread pain throughout the body, as well as fatigue and a variety of other accompanying symptoms. Physical activity is one of the most useful non-pharmacological treatments for pain and symptom reduction. Therefore, the main objective of this research was to analyse the objective levels of sedentary lifestyle and physical activity, as well as the study of heart rate variability as a predictor of health. A total of 21 women previously diagnosed with fibromyalgia (FM) and 10 healthy women of the same age range participated in the study. Accelerometry was used for the determination of physical activity and sedentary lifestyle as well as the study of heart rate variability (HRV) at rest for the assessment of cardiovascular health. The results show that participants with fibromyalgia have higher levels of sedentary lifestyles and worse cardiovascular health outcomes compared to healthy participants not diagnosed with fibromyalgia. In conclusion, it is observed that the analysis of heart rate variability is a good predictor for the determination of cardiovascular health in patients diagnosed with fibromyalgia. A debate is open to whether sedentary lifestyles and being overweight accentuate the fibromyalgia disease or whether it is the disease itself that favors increased physical inactivity, reflected in inferior cardiovascular health. Future research is needed to deepen this analysis in order to improve the quality of life of these patients.