A5028159473- Sleep and Work-Related Fatigue
- Sleep and related disorders
- Occupational Health and Performance
- Sleep and Wakefulness Research
- Stress and Burnout Research
- Pediatric health and respiratory diseases
- Spaceflight effects on biology
- School Health and Nursing Education
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Workplace Health and Well-being
- Sports Performance and Training
- Cardiac Arrest and Resuscitation
- Resilience and Mental Health
- High Altitude and Hypoxia
- Impact of Light on Environment and Health
- Long-Term Effects of COVID-19
- Health, Environment, Cognitive Aging
- Bullying, Victimization, and Aggression
- Global Health Care Issues
- Health and Wellbeing Research
- Terrorism, Counterterrorism, and Political Violence
- Telemedicine and Telehealth Implementation
- Suicide and Self-Harm Studies
- COVID-19 and Mental Health
- Exercise and Physiological Responses
Walter Reed Army Institute of Research
2018-2024
Institute For Defense Analyses
2023
Center for Neurosciences
2021
University of Massachusetts Amherst
2017-2019
Posttraumatic stress disorder (PTSD) is a debilitating and common consequence of military service. PTSD associated with increased incidence mood disturbances (e.g., anxiety). Additionally, veterans often have poor-quality sleep poor emotion regulation ability. We sought to assess whether such deficits contribute disturbances. In 144 veterans, using double moderation model, we tested the relationship between anxiety examined quality interact moderate this relationship. found that predicts...
Objective To assess the effects of one week sleep extension on mood, fatigue and subjective sleepiness in normal-sleeping young adults. Methods Twenty-seven adults (age 24.4±5.4 years, 11 female) participated. At-home baseline sleep/wake patterns were recorded with wrist actigraphy for 14 days. This was followed by two nights in-lab 8 hours time bed (TIB), then 7 TIB extended to 10 (2100-0700 hours). Fatigue, assessed following 2nd 9th in-laboratory (i.e., 2 8hTIB TIB, respectively) using...
Primary Objective: Risk for mental health disturbances (e.g., depression and anxiety), is elevated following a mild traumatic brain injury (mTBI), even in the chronic stages of injury. In our previous work, we found individuals with mTBI have decreased emotion habituation. The objective current study was to test whether reduced habituation mechanism underlying increased risk mTBI. Research Design: We used cross-sectional assessment sample young adults at least 1 year after an Methods...
US military service members have characteristically poor sleep, even when 'in garrison' or at one's home base. The physical sleeping environment, which is often in military-provided housing barracks, may contribute to sleep quality soldiers. current study aimed assess whether the environment garrison related quality, insomnia risk and readiness.Seventy-four army special operations soldiers participated a cross-sectional study. Soldiers were queried on their surface comfort frequency of being...
Abstract Introduction In a previous study, we found that morning circadian preference and increased fatigue were associated with injuries during nocturnal parachute jump. The purpose of the present study was to replicate this finding, expand upon it by determining whether, extent which, subjective sleep ratings are also predictive injury jumps. Methods Participants included 27 male active duty Soldiers aged 23.7 ± 2.9 years (M SD). completed series questionnaires at baseline (1 week prior...
BACKGROUND: Although multiple studies have documented the impact of insufficient sleep on soldier performance, most done so using artificial measures performance (e.g., tablet or simulator tests). The current study sought to test relationship between and during infantry battle drill training, a more naturalistic measure performance. METHODS: Subjects in were 15 junior Special Operations soldiers. Soldiers wore an actigraph reported their subjective duration quality prior close quarter (CQB)...
Subjective cognitive complaints are common in the chronic stages (>3 months since injury) of mTBI, yet there is limited evidence objective neurocognitive deficits this population. Neuroimaging studies have demonstrated that although performance similar between mTBI individuals and controls, mTBIs broader utilization frontal parietal brain regions during testing. Therefore, it has been suggested preserved following due to changes neural resource allocation (i.e., compensatory processes)....
Abstract Introduction Insufficient sleep during military operations is detrimental to cognition, physical performance, and general health outcomes. However, there evidence of inter-individual differences in resilience loss. Therefore, some Soldiers may be more resilient the effects loss than others. This study examined relationship between duration, resilience, Soldier well-being a deployment-readiness training event. Methods Seventy-six male (aged 25.7±4.0y) from 75th Ranger Regiment...
Abstract Introduction As a result of the global COVID-19 pandemic, there have been significant challenges conducting clinical sleep research. Participant recruitment has particular challenge due to federal safety guidelines and institutional directives. The purpose this project is describe adaptation an in-person study protocol (of problems among military service members their families) entirely remote approach. Methods Prior COVID-19, planned research methods included recruitment,...
Abstract Introduction Sleep loss that is inherent to military operations can lead cognitive errors and potential mission failure. Single Nucleotide Polymorphisms (SNPs) allele variations of several genes (COMT, ADORA2A, TNFa, CLOCK, DAT1) have been linked with inter-individual resilience sleep through various mechanisms. U.S. Army Soldiers resilience-related alleles may be better-suited perform cognitively-arduous duties under conditions than those without these alleles. However,...
Abstract Introduction There is a well-established connection between sleep and the immune system, in midst of global pandemic, it vital to understand relationship COVID-19 symptomatology sleep. While our communities practice safety protocols, medical personnel working on response effort are at high risk for exposure contraction. This creates an urgent need better whether may contribute symptom onset, severity, recovery. study examined subjective objective during infection. Methods Fifty...
Sleep extension is associated with a positive impact on immune function, cognitive performance, and mood. However, it also requires either an earlier bedtime, later arise time, or both. In this study, we utilized natural variability in sleep bedtimes healthy population participating 7-day paradigm to explore the of shifting bedtimes. Twenty-seven adults (20–39 yrs) participated two-phase study. During Phase 1, habitual were recorded via actigraphy at home for two weeks. 2 consisted in-lab...
Daytime sleepiness and nighttime sleep disturbance are commonly reported in mild traumatic brain injury (mTBI) patients. This suggests a difference the accumulation dissipation of pressure between concussed non-concussed It is unknown whether or not these symptoms persist beyond 3 months post-injury. We sought to measure changes physiological -12 post-injury, expecting injured volunteers exhibit increased sensitivity acute, total deprivation (40 h; n=13; 6 concussed; 25 yo). At-home...
While caffeine has been shown to slow the decline of self-reported positive mood compared placebo during total sleep deprivation, what happens chronic restriction is not well known. Additionally, effect on beyond two nights studied. The current study aimed investigate impact (i.e., happiness) using a simulated work week design [e.g. 5 hours time-in-bed (TIB)]. Forty-eight healthy subjects underwent (TIB: hr/night), followed by 3 recovery 8 hr/night) in laboratory. Caffeine gum (200 mg) or...
Although previous studies have highlighted the important role of sleep within occupational settings, few examined on outcomes in high-risk organizations (HRO), where mistakes and errors can grave consequences. Therefore, current study relationship between self-reported outcome measures a military training environment. Cross-sectional survey data were collected from eighteen male U.S. soldiers (28-43 years) an elite US Army unit. Measures included Insomnia Severity Index (ISI), Fatigue Scale...