Measurement of Sedentary Behaviors or “Downtime” in Rett Syndrome

This study aimed to validate measures of sedentary time in individuals with Rett syndrome. Twenty-six individuals (median [IQR] age 16.0 (9.4-20.6) years) wore an activPAL accelerometer during video-taped activities and agreement was determined between sedentary time determined by the activPAL and observation. For 11 individuals (median [IQR] age 14.5 (11.5-25.6) years), linear regression was used to determine the relationship between sedentary time recorded on the modified Bouchard activity record diary card and measured using the activPAL. In comparison to observation, the activPAL accurately measured duration of sedentary time with a mean difference (limit of agreement) of –1.0 (6.3) minutes. The duration of Bouchard activity record downtime accounted for 73% of the variance of sedentary time measured by the activPAL (coefficient 0.762, 95% CI 0.413 to 1.111). These data provide clinicians and caregivers with capacity to investigate strategies that would aim to increase activity in the nonexercise component of the activity continuum.

Low-FODMAP-diet in irritable bowel syndrome offers benefits not only in terms of gastrointestinal symptoms, but also in terms of psychopathology in the medium- and long-term

IntroductionLow-FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) diets are strongly recommended to improve irritable bowel syndrome (IBS) symptoms. They are also hypothesized to improve the psychopathological status that often accompanies the syndrome. A study (Ledochowski et al., 2000) suggested that the ingestion of FODMAPs affected negatively the mood and that the elimination of dietary FODMAPs improved depressive symptoms.Objectives/aimsWe aimed to assess the levels of psychopathology pre- and post-diet in IBS patients free of any severe psychiatric disease (e.g., bipolar disorder, major depressive disorder, schizophrenia) or alcohol/substance abuse.MethodsWe consecutively recruited 75 IBS outpatients (68% females; age range = 21–68 years) at the Gastrointestinal Outpatient Center of our University Hospital. They filled out the Symptom Checklist-90-Revised (SCL-90-R), a visual analogue scale (VAS) to rate the intensity of abdominal bloating/pain, and a 2-week diary card registering the frequency of bloating/pain. Then, they were blindly assigned to a low-FODMAP diet, a low-FODMAP gluten-free diet and a control diet for 4 weeks. During the last 2 weeks they filled out a 2nd diary card and rerated the intensity of bloating/pain. Patients were reassessed after a 16-month follow-up. Independent t-test, χ2 test, and one-way ANOVA with Tukey post-hoc test were used.ResultsBaseline characteristics did not differ between the three groups. Post-diet and at follow-up, the two low-FODMAP diets, vs. the test diet, improved not only the intensity and frequency of bloating/pain, but also the SCL-90-R GSI, anxiety, and phobic anxiety scores (P-values < 0.05).ConclusionsThe low-FODMAP diet may improve psychopathology in IBS patients.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Decision Making Concepts for the Remote, Personalized Evaluation of COPD Patients’ Health Status

SummaryIntroduction: This article is part of the Focus Theme of Methods of Information in Medicine on “Biosignal Interpretation: Advanced Methods for Neural Signals and Images”.Objectives: This paper presents the main concepts of a decision making approach for the remote management of COPD patients based on the early detection of disease exacerbation episodes.Methods: An e-diary card is defined to evaluate a number of physiological variables and clinical parameters acquired remotely by means of wearable and environmental sensors deployed in patients’ long-stay settings. The automatic evaluation of the card results in a so-called Chronic Status Index (CSI) whose computation is tailored to patients’ specific manifestation of the disease (i.e., patient’s phenotype). The decision support method relies on a parameterized analysis of CSI variations so as to early detect worsening changes, identify exacerbation severity and track the patterns of recovery.Results: A preliminary study, carried out in real settings with 30 COPD patients monitored at home, has shown the validity and sensitivity of the method proposed, which was effectively able to timely and correctly identify patients’ critical situation.Conclusion: The preliminary results showed that the proposed e-diary card, which presents several novel features with respect to other solutions presented in the literature, can be practically used to remotely monitor COPD patients.