Scholars@Duke
Matthew John Peterson

Matthew John Peterson

Adjunct Associate Professor in the Department of Medicine
Medicine, Geriatrics and Palliative Care
matthew.peterson@duke.edu
Duke Box 3003, Durham, NC 27710
601 S. College Rd, Veterans Hall 2029E, Wilmington, NC 28403

Selected Publications

Economic Analysis of Primary Care-Based Physical Activity Counseling in Older Men: The VA-LIFE Trial.

Journal Article J Am Geriatr Soc · March 2017 OBJECTIVES: To perform an economic evaluation of a primary care-based physical activity counseling intervention that improved physical activity levels and rapid gait speed in older veterans. DESIGN: Secondary objective of randomized trial that assessed the ... Full text Open Access Link to item Cite

Association of Hearing Impairment With Incident Frailty and Falls in Older Adults.

Journal Article J Aging Health · June 2016 OBJECTIVE: We aimed to determine whether hearing impairment (HI) in older adults is associated with the development of frailty and falls. METHOD: Longitudinal analysis of observational data from the Health, Aging and Body Composition study of 2,000 partici ... Full text Link to item Cite

A Novel Analytic Technique to Measure Associations Between Circulating Biomarkers and Physical Performance Across the Adult Life Span.

Journal Article J Gerontol A Biol Sci Med Sci · February 2016 Understanding associations between circulating biomarkers and physical performance across the adult life span could aid in better describing mechanistic pathways leading to disability. We hypothesized that high concentrations of circulating biomarkers woul ... Full text Link to item Cite

Association of traumatic brain injury with subsequent neurological and psychiatric disease: a meta-analysis.

Journal Article J Neurosurg · February 2016 OBJECTIVE: Mild traumatic brain injury (TBI) has been proposed as a risk factor for the development of Alzheimer's disease, Parkinson's disease, depression, and other illnesses. This study's objective was to determine the association of prior mild TBI with ... Full text Link to item Cite

Neural Correlates of Schizophrenia Negative Symptoms: Distinct Subtypes Impact Dissociable Brain Circuits.

Journal Article Mol Neuropsychiatry · December 2015 BACKGROUND: The negative symptoms of schizophrenia include deficits in emotional expression and motivation. These deficits are stable over the course of illness and respond poorly to current medications. Previous studies have focused on negative symptoms a ... Full text Link to item Cite

Differences between completely physically inactive and low active older men and their response to an exercise intervention: the Veterans LIFE study.

Journal Article Healthy Aging Res · 2015 BACKGROUND: Physical activity interventions typically do not report behavioral changes in activity sub-groups. The aim of this study was to compare baseline differences and changes in physical activity between truly physically inactive men and low active m ... Full text Open Access Link to item Cite

A pilot study of partial unweighted treadmill training in mobility-impaired older adults.

Journal Article Biomed Res Int · 2014 BACKGROUND: Partial unweighted treadmill training is a potentially effective modality for improving fitness and function in frail elders. We tested the feasibility of partial unweighted treadmill training in older, mobility-impaired veterans. METHODS: Eigh ... Full text Link to item Cite

Enhanced fitness: a randomized controlled trial of the effects of home-based physical activity counseling on glycemic control in older adults with prediabetes mellitus.

Journal Article J Am Geriatr Soc · September 2012 OBJECTIVES: To determine whether a home-based multicomponent physical activity counseling (PAC) intervention is effective in reducing glycemic measures in older outpatients with prediabetes mellitus. DESIGN: Controlled clinical trial. SETTING: Primary care ... Full text Open Access Link to item Cite

Lessons learned when innovations go awry: a baseline description of a behavioral trial-the Enhancing Fitness in Older Overweight Veterans with Impaired Fasting Glucose study.

Journal Article Transl Behav Med · November 2011 Individuals diagnosed with impaired glucose tolerance (i.e., prediabetes) are at increased risk for developing diabetes. We proposed a clinical trial with a novel adaptive randomization designed to examine the impact of a home-based physical activity (PA) ... Full text Open Access Link to item Cite

Long-term changes in physical activity following a one-year home-based physical activity counseling program in older adults with multiple morbidities.

Journal Article J Aging Res · December 26, 2010 This study assessed the sustained effect of a physical activity (PA) counseling intervention on PA one year after intervention, predictors of sustained PA participation, and three classes of post-intervention PA trajectories (improvers, maintainers, and de ... Full text Open Access Link to item Cite

Teaching yoga to seniors: essential considerations to enhance safety and reduce risk in a uniquely vulnerable age group.

Journal Article J Altern Complement Med · August 2010 BACKGROUND: Seniors age 65 and older represent the fastest-growing sector of the population and, like many Americans, are increasingly drawn to yoga. This presents both an extraordinary opportunity and a serious challenge for yoga instructors who must be b ... Full text Open Access Link to item Cite

Walking in old age and development of metabolic syndrome: the health, aging, and body composition study.

Journal Article Metab Syndr Relat Disord · August 2010 BACKGROUND: The specific health benefits of meeting physical activity guidelines are unclear in older adults. We examined the association between meeting, not meeting, or change in status of meeting physical activity guidelines through walking and the 5-ye ... Full text Open Access Link to item Cite

The impact of self-reported arthritis and diabetes on response to a home-based physical activity counselling intervention.

Journal Article Scand J Rheumatol · May 2010 OBJECTIVES: Physical activity (PA) has the potential to improve outcomes in both arthritis and diabetes, but these conditions are rarely examined together. Our objective was to explore whether persons with arthritis alone or those with both arthritis and d ... Full text Open Access Link to item Cite

Is diabetes associated with poorer self-efficacy and motivation for physical activity in older adults with arthritis?

Journal Article Scand J Rheumatol · 2010 OBJECTIVES: The primary aim was to explore whether arthritis is associated with poorer self-efficacy and motivation for, and participation in, two specific types of physical activity (PA): endurance training (ET) and strength training (ST). A further objec ... Full text Link to item Cite

The Veterans Learning to Improve Fitness and Function in Elders Study: a randomized trial of primary care-based physical activity counseling for older men.

Journal Article J Am Geriatr Soc · July 2009 OBJECTIVES: To determine the effects of primary care-based, multicomponent physical activity counseling (PAC) promoting physical activity (PA) guidelines on gait speed and related measures of PA and function in older veterans. DESIGN: Randomized controlled ... Full text Link to item Cite

Physical activity as a preventative factor for frailty: the health, aging, and body composition study.

Journal Article J Gerontol A Biol Sci Med Sci · January 2009 BACKGROUND: It is unclear if physical activity (PA) can prevent or reverse frailty. We examined different doses and types of PA and their association with the onset and severity of frailty. METHODS: Health, Aging and Body Composition (Health ABC) study par ... Full text Link to item Cite

Effect of physical activity guidelines on physical function in older adults.

Journal Article J Am Geriatr Soc · October 2008 OBJECTIVES: To determine whether elderly people who meet national guidelines have higher physical function (PF) scores than those who do not and the effect on functional trajectory when physical activity (PA) levels change from above to below this threshol ... Full text Link to item Cite

Project LIFE--Learning to Improve Fitness and Function in Elders: methods, design, and baseline characteristics of randomized trial.

Journal Article J Rehabil Res Dev · 2008 Insufficient levels of physical activity have significant clinical consequences. Primary care settings typically do not emphasize physical activity counseling. We describe the design, methods, and baseline characteristics of "Learning to Improve Fitness an ... Full text Link to item Cite

Effect of telephone exercise counseling on frailty in older veterans: project LIFE.

Journal Article Am J Mens Health · December 2007 This study sought to determine if telephone exercise counseling attenuates frailty in older, male veterans through increased levels of physical activity. Eighty-one elderly, male veterans (age = 78.4 +/- 4.9 years) randomized to intervention (n = 39) or co ... Full text Link to item Cite

Project LIFE: a partnership to increase physical activity in elders with multiple chronic illnesses.

Journal Article J Aging Phys Act · July 2006 The authors describe a medical center-based randomized trial aimed at determining the feasibility and effectiveness of partnering patients and primary-care providers with an exercise health counselor. Study participants included 165 veterans age 70 years a ... Full text Link to item Cite

Physical Activity And Disability

Conference Medicine & Science in Sports & Exercise · May 2005 Full text Cite

Physical function in sedentary and exercising older veterans as compared to national norms.

Journal Article J Rehabil Res Dev · September 2004 We examined the associations between sedentary older veterans, those regularly involved in an outpatient exercise program and physical function. Sedentary and currently exercising older veterans performed a 30 s chair-stand test and 6 min walk test as part ... Full text Link to item Cite

Comparison of caloric expenditure in intermittent and continuous walking bouts.

Journal Article J Strength Cond Res · May 2004 This study compared the caloric expenditure of 30 consecutive minutes (30 minute) of moderate intensity walking with 3 intermittent 10-minute bouts (3 x 10 minutes) of moderate intensity walking in healthy, unfit men (40-49 years). Screening consisted of V ... Full text Link to item Cite

Development and validation of skinfold-thickness prediction equations with a 4-compartment model.

Journal Article Am J Clin Nutr · May 2003 BACKGROUND: Skinfold-thickness measurements are commonly obtained for the indirect assessment of body composition. OBJECTIVE: We developed new skinfold-thickness equations by using a 4-compartment model as the reference. Additionally, we compared our new e ... Full text Link to item Cite

Accuracy of VO2(max) prediction equations in older adults.

Journal Article Med Sci Sports Exerc · January 2003 PURPOSE: We explored the accuracy and bias of prediction equations (ACSM and Foster) in older, deconditioned men and women. We also examined the predictors of VO2(max) to further understand which variables affect respiratory fitness in the elderly. METHODS ... Full text Link to item Cite