Table 1.

Variables, instruments, interpretation, and reference for assessment.

Variables	Instruments	Interpretation of instruments	Author and Year
Functional capacity	FIQ-P	Scores vary from 0 to 100. Higher the value, the greater the impact of fibromyalgia.	Rosado et al. (36)
Pain intensity	VAS	Scores from 0 to 10. Higher the number, the higher intensity.	McCormack et al. (37)
Anxiety level	VAS	Scores from 0 to 10. Higher the number, the higher intensity.	McCormack et al. (37)
Fatigue level	VAS	Scores from 0 to 10. Higher the number, the higher intensity.	McCormack et al. (37)
Mood	VAS	Scores from 0 to 10. Higher the number, better state of mood.	McCormack et al. (37)
Quality of sleep	VAS	Scores from 0 to 10. Higher the number, the worse quality of sleep.	McCormack et al. (37)
Neuromuscular performance	Vertical Jump	Optical measurement system consisting of two transmitting and receiving cells. Higher jump, better neuromuscular performance.	Gonçalves et al. (41)
	Medicine Ball Throw	2kg medicinal ball throw. Higher distance, better neuromuscular performance.	Gonçalves et al. (41)
Balance	Force plate	Lower variation of the pressure centers, better balance.	Sempere-Rubio et al. (42)

FIQ-P, Fibromyalgia Impact Questionnaire Portuguese version; VAS, Visual Analog Scale.