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This study aimed to determine the associations between adherence to the 24-hour movement guidelines and symptoms of anxiety and depression among Colombian university students.
Cross-sectional study.
1125 individuals (mean age 20.2±2.5 years; 56.7% female).
Students sampled from a single public university.
Participants completed validated self-report instruments: the International Physical Activity Questionnaire-Short Form to assess physical activity (PA), sedentary behaviour (SB) and the Pittsburgh Sleep Quality Index to assess sleep duration. Symptoms of depression and anxiety were measured using the Hospital Anxiety and Depression Scale, with a score of ≥11 used to classify elevated symptoms. Binary logistic regression models were used to estimate associations between adherence to the 24-hour movement guidelines (meeting all three, two, one or none) and mental health outcomes, adjusting for potential confounders.
Only 15.5% of students met all three components of the 24-hour movement guidelines. Meeting a greater number of components was significantly associated with lower odds of depressive and anxiety symptoms. In fully adjusted analyses, students who met all three guidelines were less likely to report anxiety symptoms (OR=0.26; 95%CI 0.13 to 0.54) and depressive symptoms (OR=0.42; 95%CI 0.22 to 0.79) compared with those who met none. Among individual behaviours, sufficient PA and adequate sleep were independently associated with lower odds of both outcomes, whereas high SB was associated with higher odds of elevated symptoms.
In this cross-sectional study, adherence to a greater number of 24-hour movement guideline components was associated with lower levels of anxiety and depressive symptoms in a graded manner. However, the cross-sectional design precludes inference regarding directionality or causality, and bidirectional associations or residual confounding remain possible. Longitudinal and interventional studies are needed to determine whether integrated daily movement behaviours influence mental health outcomes in young adults, particularly in Latin American populations.
by Patricia Quintero-Rincón, Karina Caballero-Gallardo, Elkin Galeano, Oscar Flórez-Acosta
This study investigated the chemical and biological potential of Bidens pilosa and Croton sp., plants from megadiverse ecosystems in Colombia, collected in Santander de Quilichao (Cauca) and San Basilio de Palenque (Bolivar). The chemical profile was analyzed by UHPLC-ESI-Orbitrap-HRMS, and the total phenolic and flavonoid content was quantified using colorimetric methods. Antioxidant capacity was assessed using methods that evaluate reducing power and electron transfer mechanisms. The inhibition of key enzymes in skin aging, such as tyrosinase, hyaluronidase, and collagenase, was evaluated, as well as cytotoxicity in keratinocytes and human melanoma cells. Chemical characterization revealed distinctive phytochemical profiles: B. pilosa contained 21.1 mg GAE/g DT of phenolics and 64.6 mg RE/g DT of flavonoids, dominated by p-coumaric acid and rosmarinic acid, while Croton sp. exhibited higher levels of phenolics (169.4 mg GAE/g DT) and 54.1 mg RE/g DT of flavonoids, highlighting rosmarinic acid, p-coumaric acid and quercetin. Both extracts showed significant antioxidant capacity and enzyme modulation, including moderate collagenase inhibition (53.9–55.0%), high hyaluronidase inhibition (64.5–76.5%), and low tyrosinase inhibition (11.1–12.7%), suggesting protection of extracellular matrix and hyaluronic acid during skin aging. Sun protection factor was limited (SPF: 14.5 for B. pilosa and 11.6 for Croton sp.), with low ultraviolet absorption, consistent with low antityrosinase activity. Cytotoxicity assays demonstrated that B. pilosa was not toxic to HaCaT keratinocytes (IC₅₀ > 500 µg/mL) and displayed antimelanoma activity on A375 cells (IC₅₀ = 398.6 µg/mL), whereas Croton sp. showed moderate selectivity towards melanoma cells (IC₅₀ HaCaT = 329.5 µg/mL; IC₅₀ A375 = 189.0 µg/mL). The results suggest that both plants have potential in dermatological applications such as anti-melanoma agents, antioxidants, and modulators of skin aging enzymes, although highlight the importance of improving strategies to maximize their efficacy and safety.A successful extubation process is critical for the future health outcomes of paediatric patients, as it tests the functioning of the respiratory system without the support of mechanical ventilation. However, extubation can cause stress, pain, anxiety or discomfort in patients, which may sometimes lead to an increased likelihood of reintubation. Music-based interventions and therapies have been shown to be effective in reducing anxiety and stress levels in ventilated patients in the paediatric intensive care unit (PICU), but studies evaluating the effect of music therapy during the extubation process in the PICU are scarce.
This is a pragmatic multicentre randomised clinical trial with two parallel arms. The intervention group will receive standard care + music therapy during the extubation process, and the control group will receive standard care alone. The main outcome measure is heart rate, which will be measured every minute for 5 min pre-extubation, during the extubation process and up to 10 min postextubation. Secondary outcome measures are: oxygen saturation, respiratory rate, blood pressure and heart rate variability. A total of 82 patients will be randomised.
This study was approved by the Research Ethics Committee of the Fundación Universitaria Sanitas (CEIFUS 1356-24, date of approval: 3 May 2024). All parents or legal guardians of patients will sign a written informed consent, and if applicable, assent from participants will be sought. The results will be disseminated through publications in peer-reviewed journals, conferences and presentations at the hospitals’ clinical committees.
Version 1.0, 18 December 2024.
NCT06591533, trial registration date: 10 September 2024.
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