ABSTRACT
La fibromialgia es una enfermedad caracterizada por presentar un dolor cónico asociada a una desregulación autonómica de quien la padece, sin muchas alternativas de tratamiento. Este estudio tuvo como objetivo, conocer la relación existente entre el ejercicio físico en medio acuático, la percepción del dolor y el control autonómico cardiovascular en mujeres adultas que padecen fibromialgia. La muestra se compuso por 15 mujeres diagnosticadas con fibromialgia quienes participaron en 24 sesiones de ejercicio en medio acuático de 40 minutos. Se evaluaron medidas antropométricas, variabilidad de frecuencia cardiaca (VFC) y percepción de dolor (PCS) en cuatro tiempos experimentales (t1, basal; t2, sesión 8; t3, sesión 16; t4, sesión 24). Además, se evaluó la percepción al dolor en cada sesión a través de EVA. Los resultados muestran, que la percepción del dolor a través de EVA disminuyó al comparar todas las medias evaluadas antes y después de cada sesión (p < 0.05). En la aplicación de PCS, un menor Dolor Total y Rumiación se obtuvo al comparar t1 con t4. Los valores de VFC mostraron que SDNN y RMSSD fueron mayores después de la sesión, cuando se comparó t4 con t1 (p < 0.05). La frecuencia cardiaca media disminuyó al finalizar las sesiones, mostrando una mejor adaptación al ejercicio. La relación entre dolor y medidas cardiacas, estuvo dada por una correlación positiva en los dominios de dolor registrados antes de las sesiones y los valores de RMSSD y SDNN. En conclusión, la práctica de ejercicio físico en medio acuático, indicaría una menor percepción de dolor y una mejor respuesta autonómica cardiaca en mujeres con fibromialgia
Fibromyalgia is a disease characterized by conical pain associated with autonomic dysregulation of the sufferer, without many treatment alternatives. The objective of this study was to find out the relationship between physical exercise in an aquatic environment, pain perception and cardiovascular autonomic control in adult women suffering from fibromyalgia. The sample consisted of 15 women diagnosed with fibromyalgia who participated in 24 40-minute exercise sessions in a water environment. Anthropometric measures, heart rate variability (HRV ) and pain perception (PCS) were evaluated in four experimental times (t1, baseline; t2, session 8; t3, session 16; t4, session 24). In addition, the perception of pain was evaluated in each session through VAS. The results show that the perception of pain through VAS decreased when comparing all the means evaluated before and after each session (p < 0.05). In the PCS application, a lower Total Pain and Rumination was obtained when comparing t1 with t4. HRV values showed that SDNN and RMSSD were higher after the session, when t4 was compared with t1 (p < 0.05). The mean heart rate decreased at the end of the sessions, showing a better adaptation to exercise. The relationship between pain and cardiac measurements was given by a positive correlation in the pain domains recorded before the sessions and the RMSSD and SDNN values. In conclusion, the practice of physical exercise in an aquatic environment would indicate a lower perception of pain and a better cardiac autonomic response in women with fibromyalgia
Subject(s)
Humans , Female , Adult , Middle Aged , Fibromyalgia/therapy , Exercise/physiology , Exercise Therapy/methods , Hydrotherapy/methods , Heart Rate/physiology , Pain Perception/physiology , Fibromyalgia/physiopathology , Pain Measurement , Chronic Pain/physiopathology , Chronic Pain/therapy , Body Mass Index , Treatment Outcome , Reference Values , Time FactorsABSTRACT
OBJECTIVE: The possible effects of blue light during acute hypoxia and the circadian rhythm on several physiological and cognitive parameters were studied. METHODS: Fifty-seven volunteers were randomly assigned to 2 groups: nocturnal (2200-0230 hours) or diurnal (0900-1330 hours) and exposed to acute hypoxia (4000 m simulated altitude) in a hypobaric chamber. The participants were illuminated by blue LEDs or common artificial light on 2 different days. During each session, arterial oxygen saturation (Spo2), blood pressure, heart rate variability, and cognitive parameters were measured at sea level, after reaching the simulated altitude of 4000 m, and after 3 hours at this altitude. RESULTS: The circadian rhythm caused significant differences in blood pressure and heart rate variability. A 4% to 9% decrease in waking nocturnal Spo2 under acute hypoxia was observed. Acute hypoxia also induced a significant reduction (4%-8%) in systolic pressure, slightly more marked (up to 13%) under blue lighting. Women had significantly increased systolic (4%) and diastolic (12%) pressures under acute hypoxia at night compared with daytime pressure; this was not observed in men. Some tendencies toward better cognitive performance (d2 attention test) were seen under blue illumination, although when considered together with physiological parameters and reaction time, there was no conclusive favorable effect of blue light on cognitive fatigue suppression after 3 hours of acute hypobaric hypoxia. CONCLUSIONS: It remains to be seen whether longer exposure to blue light under hypobaric hypoxic conditions would induce favorable effects against fatigue.
