Physical Activity Participation among Children and Youth with Mental Health Symptoms: Clinician Perspectives.

Background/objectives: Physical activity supports mental health and well-being in children and youth. However, there are significant barriers to physical activity participation among individuals impacted by mental health disorders. This study investigates these barriers through the perspective of mental health clinicians who support children and youth.

Impact of COVID-19 on Physical Activity in Families Managing ADHD and the Cyclical Effect on Worsening Mental Health.

Physical activity supports symptom management in children with ADHD and reduces the mental health burden associated with caregiving for children with ADHD. Survey-based research shows that COVID-19 reduced physical activity among diverse populations. This study used a qualitative approach situated within a socioecological framework to (1) understand how COVID-19 impacted physical activity of children with ADHD and their caregivers, to (2) identify barriers to their physical activity, and to (3) identify potential areas of support.

Acute agitated delirious state associated with Taser exposure.

Background: The use of the Taser (Taser International, Scottsdale, Arizona) as a form of nonlethal force is increasingly common because of its safety profile. Tasers have been associated with in-custody mortality particularly in agitated individuals, though potential explanatory mechanisms are poorly understood. While Tasers are often used to subdue acutely agitated individuals, no study has reported Taser exposure precipitating agitation or delirium, even though high-voltage electrical exposure is well documented independently to precipitate acute delirium.

Greater amount of visual feedback decreases force variability by reducing force oscillations from 0-1 and 3-7 Hz.

The purpose was to determine the relation between visual feedback gain and variability in force and whether visual gain-induced changes in force variability were associated with frequency-specific force oscillations and changes in the neural activation of the agonist muscle. Fourteen young adults (19-29 years) were instructed to accurately match the target force at 2 and 10% of their maximal voluntary contraction with abduction of the index finger. Force was maintained at specific visual feedback gain levels that varied across trials.

Removal of visual feedback alters muscle activity and reduces force variability during constant isometric contractions.

The purpose of this study was to compare force accuracy, force variability and muscle activity during constant isometric contractions at different force levels with and without visual feedback and at different feedback gains. In experiment 1, subjects were instructed to accurately match the target force at 2, 15, 30, 50, and 70% of their maximal isometric force with abduction of the index finger and maintain their force even in the absence of visual feedback. Each trial lasted 22 s and visual feedback was removed from 8-12 to 16-20 s.

Persistent low levels of beta-hCG in a patient with recurrent pregnancy loss.

Background: A subset of women with persistent low levels of beta-hCG have undergone potentially harmful treatments despite no evidence of pregnancy or gestational trophoblastic neoplasia.

Case: A 37-year-old woman with a history of recurrent pregnancy loss presented with persistent low levels of beta-hCG. She was treated for ectopic pregnancy and retained products and was later suspected of having a malignancy.