Objective: To assess the quality of life, muscle strength and functional capacity in women with fibromyalgia (FM).
Patients and methods: Cross-sectional study carried out with 31 female volunteers (age range, 35 to 60 years), paired in two groups (16 with FM, and 15 in the control group). Both groups underwent the following assessments: one-repetition maximum (1RM) of knee flexors and extensors; quality of life (application of the SF-36 questionnaire); 6-minute walk test (6MWT); pinch strengths (tripod, pulp-to-pulp, and key) and handgrip strength.
Results: A significant difference between the groups was observed in the following variables: handgrip strength; pulp-to-pulp and tripod pinch strength of both hands; and the 1RM test of knee flexors and extensors in both limbs (P < 0.05). Only the key pinch showed no statistical difference between groups for both limbs (P > 0.05). The 6MWT also showed a statistical difference between the groups (P < 0.01). The SF-36 showed that women with FM have reduced functional capacity, increased bodily pain, and worsened general health status (P < 0.05).
Conclusion: The results revealed, in women with FM, a reduction in the following: muscle strength in the upper and lower limbs; the distance walked in the 6MWT; and quality of life.