Gross and fine motor function in fibromyalgia and chronic fatigue syndrome

The Discussion says the FM group had the highest BMI, but the between-group BMI difference was not significant. It reports a positive correlation between weight—not BMI—and reaction time during gait initiation; the Results report longer, not decreased, reaction times for FM compared with healthy controls. (LLM, conf=0.88)

Checked by a reasoning model — may be wrong.

The Introduction describes fibromyalgia as characterized by chronic widespread pain, reports cognitive complaints, and notes substantial symptom overlap with chronic fatigue syndrome. The Discussion says newer diagnostic criteria include fatigue and cognition. The passages do not describe mood or sleep disorders as features of fibromyalgia, or characterize its pain as medically unexplained. (LLM, conf=0.88)

The Discussion (page not provided) says high BMI may impair fine and gross motor skills and that low physical activity may adversely affect motor proficiency in patients with fibromyalgia or chronic fatigue syndrome. It also links avoidance of pain and fatigue to inactivity and deconditioning, but does not establish that these factors perpetuate a cycle of disability. (LLM, conf=0.84)

The Results (Gait initiation; page not provided) report significantly longer gait-initiation reaction times in patients with FM than in healthy controls. The Introduction also reports reduced gait velocity in FM. Our copy does not establish reduced stride length or altered postural sway; the separately cited muscle-activation clause is not necessary to this verdict. (LLM, conf=0.84)

The Discussion says low physical activity is common in FM and may be correlated with poor motor control and lower movement velocity. It also says high BMI is common in FM, but does not establish a correlation between BMI and physical activity. The claim presents the tentative motor-control association as an established correlation. (LLM, conf=0.88)

The Introduction reports prior findings of manual-dexterity deficits in fibromyalgia, and the Discussion describes sensory–motor processing deficits in fibromyalgia and chronic fatigue syndrome. But the Discussion presents their connection to poor motor function as a possible explanation, especially for gross motor function; this study found no statistically significant difference in fine-motor performance. Dopamine dysregulation is attached to a different citation and is not assessed here. (LLM, conf=0.85)

The Discussion (page not provided) reports mixed associations across motor tasks: weight correlated with reaction time during gait initiation but not with Purdue Pegboard scores. It also notes indications that high BMI adversely affects motor skills. The paper does not establish that the literature is mixed specifically about obesity and postural stability; its own comparison concerns weight and motor performance in fibromyalgia and chronic fatigue syndrome groups. (LLM, conf=0.82)

The Discussion (page unavailable) suggests that avoiding aggravation of pain and fatigue contributes to low physical activity in fibromyalgia, and reports reduced motor performance. It does not establish that severe fatigue affects depression or pain perception, or measure exercise adherence; avoiding activity is not the same as adherence to an exercise program. (LLM, conf=0.83)

The Discussion (page unavailable) suggests that patients with fibromyalgia may benefit from exercise therapy including sensory–motor challenges. It does not describe combining that exercise with pain-coping skills, making it tailored and enjoyable, or using it to improve confidence in movement and activity participation. (LLM, conf=0.87)

The Introduction discusses overlapping symptoms of fibromyalgia and chronic fatigue syndrome, and the Methods report fatigue ratings, but neither gives a prevalence of poor sleep or links it to severe fatigue. Searches for the 80% figure and sleep quality found no passage addressing the quoted claim. In the full citing sentence, this source’s citation is attached to physical functioning rather than to the prevalence figure. (LLM, conf=0.77)