Sleep duration and quality in elite athletes measured using wristwatch actigraphy.

Sleep is known to be an important component of recovery from training, yet little is known about the quality and quantity of sleep achieved by elite athletes. The aim of the present study was to quantify sleep in elite athletes using wristwatch actigraphy. Individual nights of sleep from a cohort of Olympic athletes (n = 47) from various sports were analysed and compared to non-athletic controls (n = 20).

How are we measuring resilience following childhood maltreatment? Is the research adequate and consistent? What is the impact on research, practice, and policy?

The authors review the literature on resilience following childhood maltreatment and describe how variation in the measurement of outcomes at various developmental stages affects research findings, practice implications, and policy recommendations. Although the 21 studies reviewed considered competent functioning in similar domains as evidence of resilience following maltreatment, few provided prevalence estimates for specific indicators or across domains of functioning. Using the National Survey of Child and Adolescent Well-Being (NSCAW), the authors explored different ways of operationalizing resilience.

Benzodiazepine-induced reduction in activity mirrors decrements in cognitive and psychomotor performance.

Objective: To assess whether actigraphy is sensitive to benzodiazepine-induced changes in cognitive and psychomotor performance and sleep.

Methods: Healthy young volunteers (n = 23; 11 males), were randomised to a double-blind, placebo-controlled, crossover trial. Actigraphy was used to record motor activity continuously.

Sleep profiles and mood states during an expedition to the South Pole.

Objective: To study sleep parameters and mood profiles of a female explorer traveling solo and unaided to the South Pole during the winter.

Methods: During the 44-day expedition, global activity and sleep were assessed using a wrist actigraph (AW) worn on the nondominant wrist. Mood was assessed using an adapted Profile of Mood States questionnaire.

A double-blind, placebo-controlled investigation of the residual psychomotor and cognitive effects of zolpidem-MR in healthy elderly volunteers.

Aim: To assess residual psychomotor and cognitive effects of a modified-release formulation of zolpidem (zolpidem-MR), developed to provide sustained hypnotic efficacy during the whole night, compared with placebo and flurazepam.

Methods: Twenty-four healthy elderly volunteers received four study treatments (zolpidem-MR 6.25 mg and 12.

A double-blind study in healthy volunteers to assess the effects on sleep of pregabalin compared with alprazolam and placebo.

Study Objectives: To assess the effects of pregabalin compared with alprazolam and placebo on aspects of sleep in healthy volunteers.

Design: Randomized, double-blind, placebo- and active-controlled, 3-way crossover.

Setting: Single research center.