There were no statistically significant differences in attrition rates between the interventions .
In general , adverse effects were poorly recorded , but no serious adverse effects were reported .
The evidence ( rated as low quality ) suggested that moderate- and moderate- to high-intensity resistance training improves multidimensional function , pain , tenderness , and muscle strength in women with fibromyalgia .
The evidence ( rated as low quality ) also suggested that eight weeks of aerobic exercise was superior to moderate-intensity resistance training for improving pain in women with fibromyalgia .
There was low- quality evidence that 12 weeks of low-intensity resistance training was superior to flexibility exercise training in women with fibromyalgia for improvements in pain and multidimensional function .
There was low- quality evidence that women with fibromyalgia can safely perform moderate- to high-resistance training
BACKGROUND Fibromyalgia is characterized by chronic widespread pain that leads to reduced physical function .
Exercise training is commonly recommended as a treatment for management of symptoms .
We examined the literature on resistance training for individuals with fibromyalgia .
Resistance training is exercise performed against a progressive resistance with the intention of improving muscle strength , muscle endurance , muscle power , or a combination of these .
OBJECTIVES To evaluate the benefits and harms of resistance exercise training in adults with fibromyalgia .
We compared resistance training versus control and versus other types of exercise training .
Effects of strength vs aerobic exercise on pain severity in adults with fibromyalgia: A randomized equivalence trial
Summary Strengthening and aerobic exercise had equivalent effects on reducing pain severity in patients with fibromyalgia .  Abstract Strength training and aerobic exercise have beneficial effects on pain in adults with fibromyalgia . However , the equivalence of strengthening and aerobic exercise has not been reported . The primary aim of this r and omized equivalence trial involving patients with fibromyalgia admitted to an interdisciplinary pain treatment program was to test the hypothesis that strengthening ( n = 36 ) and aerobic ( n = 36 ) exercise have equivalent effects ( 95 % confidence interval within an equivalence margin ±8 ) on pain , as measured by the pain severity subscale of the Multidimensional Pain Inventory . Secondary aims included determining the effects of strengthening and aerobic exercise  on peak Vo2 uptake , leg strength , and pressure pain thresholds . In an intent‐to‐treat analysis , the mean ( ± st and ard deviation ) pain severity scores for the strength and aerobic groups at study completion were 34.4 ± 11.5 and 37.6 ± 11.9 , respectively . The group difference was −3.2 ( 95 % confidence interval , −8.7 to 2.3 ) , which was within the equivalence margin of Δ8 . Significant improvements in pain severity ( P < .001 ) , peak Vo2 ( P < .001 ) , strength ( P < .001 ) , and pain thresholds ( P < .001 ) were observed from baseline to week 3 in the intent‐to‐treat analysis ; however , patients in the aerobic group ( mean change 2.0 ± 2.6 mL/kg/min ) experienced greater gains ( P < .013 ) in peak Vo2 compared to the strength group ( mean change 0.4 ± 2.6 mL/kg/min ) . Knowledge of the equivalence and physiological effects of exercise have important clinical implication s that could allow practitioners to target exercise recommendations on the basis of comorbid medical conditions or patient preference for a particular type of exercise . This study found that strength and aerobic exercise had equivalent effects on reducing pain severity among patients with fibromyalgia
There were no statistically significant differences in attrition rates between the interventions .
In general , adverse effects were poorly recorded , but no serious adverse effects were reported .
The evidence ( rated as low quality ) suggested that moderate- and moderate- to high-intensity resistance training improves multidimensional function , pain , tenderness , and muscle strength in women with fibromyalgia .
The evidence ( rated as low quality ) also suggested that eight weeks of aerobic exercise was superior to moderate-intensity resistance training for improving pain in women with fibromyalgia .
There was low- quality evidence that 12 weeks of low-intensity resistance training was superior to flexibility exercise training in women with fibromyalgia for improvements in pain and multidimensional function .
There was low- quality evidence that women with fibromyalgia can safely perform moderate- to high-resistance training
BACKGROUND Fibromyalgia is characterized by chronic widespread pain that leads to reduced physical function .
Exercise training is commonly recommended as a treatment for management of symptoms .
We examined the literature on resistance training for individuals with fibromyalgia .
Resistance training is exercise performed against a progressive resistance with the intention of improving muscle strength , muscle endurance , muscle power , or a combination of these .
OBJECTIVES To evaluate the benefits and harms of resistance exercise training in adults with fibromyalgia .
We compared resistance training versus control and versus other types of exercise training .