A5075181543- Occupational Health and Performance
- Sports injuries and prevention
- Sports Performance and Training
- Ergonomics and Musculoskeletal Disorders
- Orthopaedic implants and arthroplasty
- Musculoskeletal pain and rehabilitation
- Total Knee Arthroplasty Outcomes
- Shoulder Injury and Treatment
- Advanced X-ray and CT Imaging
- Resilience and Mental Health
- Body Composition Measurement Techniques
- Shoulder and Clavicle Injuries
- Knee injuries and reconstruction techniques
- Hip and Femur Fractures
- Lower Extremity Biomechanics and Pathologies
- Cardiovascular and exercise physiology
- Bone fractures and treatments
- Elbow and Forearm Trauma Treatment
- Musculoskeletal synovial abnormalities and treatments
- Technology Assessment and Management
- Mitochondrial Function and Pathology
- Grit, Self-Efficacy, and Motivation
- Cancer-related cognitive impairment studies
- Trauma and Emergency Care Studies
- Genetics and Physical Performance
U.S. Army Research Institute of Environmental Medicine
2015-2024
United States Army
2007-2022
American Physical Therapy Association
2007
Orthopaedic Research
1994-1997
University of Cambridge
1996-1997
Addenbrooke's Hospital
1992-1996
Dual-energy X-ray absorptiometry (DEXA) is increasingly used to measure changes in bone mineral density (BMD) around femoral prostheses after total hip arthroplasty. We have studied the factors which affect accuracy of these measurements. The coefficient variation was < 2% using a hydroxyapatite phantom, 2.7% an anthropomorphic phantom specimen, and 1% repeated measurements on implanted cadaver femora. precision did not vary with different implant materials or designs. In patients we found...
Sleep restriction degrades cognitive and motor performance, which can adversely impact job performance increase the risk of accidents. Military personnel are prone to operating under sleep restriction, previous work suggests that military marksmanship may be negatively affected such conditions. Results these studies, however, mixed have often incorporated additional stressors (e.g. energy restriction) beyond restriction. Moreover, few studies investigated how degree difficulty a task impacts...
Musculoskeletal injuries (MSKIs) pose a significant threat to military readiness and are difficult monitor due Soldiers' reluctance seek medical treatment. There is high risk of developing MSKIs while going through initial entry training (IET), many which go unreported. The purposes this study were identify the contributing factors that influence US Army trainees not care for self-reported symptoms musculoskeletal injury (SMSKI) establish how those may differ by sex, school, installation...
After an anterior cruciate ligament (ACL) injury, people need secondary prevention strategies to identify osteoarthritis at its earliest stages so that interventions can be implemented halt or slow the progression toward long-term burden. The Osteoarthritis Action Alliance formed interdisciplinary Secondary Prevention Task Group develop a consensus on recommendations provide clinicians with are intended reduce risk of after person has ACL injury. group achieved 15 out 16 address patient...
We measured bone mineral density (BMD) in the proximal femur by dual-energy X-ray absorptiometry (DEXA) 20 patients after cemented total hip arthroplasty over a period of one year. found statistically significant reduction periprosthetic BMD six months on medial side and lateral adjacent to mid distal thirds prosthesis. At year operation there was mean 6.7% region calcar 5.3% increase femoral shaft tip implant. These changes reflect pattern reduced stress increased around They support...
Abstract Background Attrition rate in new army recruits is higher than incumbent troops. In the current study, we identified risk factors for attrition due to injuries and physical fitness failure recruit training. A variety of predictive models were attempted. Methods This retrospective cohort included 19,769 Army soldiers Australian Defence Force receiving training during a period from 2006 2011. Among them, 7692 reserve received 28-day course, remaining 12,077 full-time an 80-day course....
This study examined psychological and physical health factors in a cohort of U.S. Marine recruits with the goal developing comprehensive understanding attributes bring to training. 1,350 male completed multimeasure survey during first week A 2-way multivariate analysis variance (MANOVA) was conducted explore relationship hardiness dimensions on several factors. Compared other military samples, this reported similar levels control rigidity subscales. Recruits who higher scores measure...
Canino, MC, Foulis, SA, Zambraski, EJ, Cohen, BS, Redmond, JE, Hauret, KG, Frykman, PN, and Sharp, MA. U.S. Army Physical Demands Study: Differences in physical fitness occupational task performance between trainees active duty soldiers. J Strength Cond Res 33(7): 1864-1870, 2019-U.S. initial entry training (IET) is designed to prepare for the military environment subsequent training, including specific programs increase perform job-specific tasks minimal acceptable standard (MAPS). The aim...
Physical training programs that enhance battlefield-related fitness needs have been increasingly advocated as operational demands on the US military increased, but few studies evaluated program effectiveness. The purpose of this study was to compare a novel 7-week physical with traditional army in improving selected measures and task performance. One hundred eighty subjects performed 30-m rush wearing fighting load, simulated casualty recovery 1-repetition maximum bench press, repetition...
This study evaluated the musculoskeletal injury (MSKI) self-reporting behaviors among active-duty Air Force Special Warfare personnel to explore potential limitations of surveillance approaches.Participants completed a 47-item survey between December 2018 and March 2019 regarding their MSKI history. Participants were asked if they sought medical care for symptoms consistent with MSKIs reasons did or not report injuries. Injury reporting rates calculated descriptive statistics rank ordering...
Context The Osteoarthritis Action Alliance formed a secondary prevention task group to develop consensus on recommendations reduce the risk of osteoarthritis after knee injury. Objective Our goal was provide clinicians with that are intended person has sustained an anterior cruciate ligament Specifically, this manuscript describes our methods, literature reviews, and dissenting opinions elaborate rationale for identify critical gaps. Design Consensus process. Setting Virtual video conference...
Exercise has important effects on skeletal mineralization. Changes in bone mineral density (BMD) and content (BMC) as measured by dual energy X-ray absorptiometry were investigated a group of 17 male novice college oarsmen over 7-month period compared with eight age-matched controls. The rowing training programme consisted approximately 8 h rowing, 1 weight training, running per week. After 7 months the mean BMD lumbar spine (L1-L4) had increased significantly 2.9% (P < 0.001) BMC 4.2%...
The 20-m shuttle run test (MSRT) is a common field used to measure aerobic fitness in controlled environments. U.S. Army currently assesses with the two-mile (TMR), but external factors may impact performance. aim of this study examine relationship between Physical Fitness Test TMR performance and MSRT military personnel. A group 531 (403 males 128 females) active duty soldiers (age: 24.0 ± 4.1 years) performed an indoor facility. Heart rate was monitored for duration test. Post-heart...