Courtney J Stevens

Dr. Courtney J Stevens

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Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2012 in Journal of Cancer Epidemiology
Verified
Journal Article
Open access
PDF file
HKHollis C Karoly
Hollis C Karoly
CSCourtney J Stevens
Courtney J Stevens
RMRenee E. Magnan
Renee E. Magnan
NHNicole Harlaar
Nicole Harlaar
KHKent E. Hutchison
Kent E. Hutchison
ABAngela D. Bryan
Angela D. Bryan
Objective. To determine whether genetic variants suggested by the literature to be associated with physiology and fitness phenotypes predicted differential physiological and subjective responses to a bout of aerobic exercise among inactive but otherwise healthy adults.Method. Participants completed a 30-minute submaximal aerobic exercise session. Measures of physiological and subjective responding were taken before, during, and after exercise. 14 single nucleotide polymorphisms (SNPs) that have been previously associated with various exercise phenotypes were tested for associations with physiological and subjective response to exercise phenotypes.Results. We found that two SNPs in theFTOgene (rs8044769 and rs3751812) were related to positive affect change during exercise. Two SNPs in theCREB1gene (rs2253206 and 2360969) were related to change in temperature during exercise and with maximal oxygen capacity (VO2max). TheSLIT2SNP rs1379659 and theFAM5CSNP rs1935881 were associated with norepinephrine change during exercise. Finally, theOPRM1SNP rs1799971 was related to changes in norepinephrine, lactate, and rate of perceived exertion (RPE) during exercise.Conclusion. Genetic factors influence both physiological and subjective responses to exercise. A better understanding of genetic factors underlying physiological and subjective responses to aerobic exercise has implications for development and potential tailoring of exercise interventions.

1 April 2017 in Health Psychology
Verified
Journal Article
Open access
BKBethany M. Kwan
Bethany M. Kwan
CSCourtney J Stevens
Courtney J Stevens
ABAngela D. Bryan
Angela D. Bryan
Anticipated affect may influence exercise behavior via experienced affective responses and intentions. Cognitive manipulations of anticipated affect may inform exercise intervention design. The purpose of this study was to experimentally test the effects of an expectation-based manipulation of affective responses to exercise on anticipated, experienced, and remembered affect and adherence to a 7-day exercise prescription. Participants (N = 98) were randomly assigned to a positive anticipated affect manipulation, a negative anticipated affect manipulation, or a no affect manipulation control. They reported anticipated, experienced, and remembered affect during and after a standardized 30-min bout of treadmill exercise at an intensity just below ventilatory threshold. Participants were asked to try to complete the prescribed exercise daily for 1 week. Differences in affect and exercise behavior were examined across conditions, as were relationships between affect measures, intentions and behavior. The manipulation influenced anticipated and experienced affective responses, but not behavior. Participants generally expected exercise to be less pleasant and more fatiguing that it actually was. Anticipated, experienced, and remembered affect were associated with intentions to exercise. Intentions and remembered affect were both directly associated with exercise behavior. Moderate-to-vigorous exercise can be more pleasant than people expect it to be. Additionally, encouraging exercisers to focus on the positive affective outcomes of exercise can yield a more positive affective experience than those who focus on negative affective outcomes or do not focus on affective outcomes at all. The role of affect in both reflective and automatic motivation to exercise is discussed. (PsycINFO Database Record

1 November 2018 in Journal of Cardiopulmonary Rehabilitation and Prevention
Verified
Journal Article
Closed access
TWTina Pittman MSW Wagers
Tina Pittman MSW Wagers
CSCourtney J Stevens
Courtney J Stevens
KRKaitlin V. Msed Ross
Kaitlin V. Msed Ross
KLKatherine Kelly Leon
Katherine Kelly Leon
KMKevin S. Masters
Kevin S. Masters
Purpose: Spontaneous coronary artery dissection (SCAD) is a nonatherosclerotic type of acute myocardial infarction that primarily affects young, healthy women without typical risk factors for heart disease. Few investigations have examined psychosocial variables in this population and none have looked at patient perceptions of the experience and stresses associated with having a SCAD event or the resources currently available to SCAD survivors. This investigation describes survivors' subjective experiences of SCAD. Participants also provided information about types and helpfulness of resources available to them post-SCAD, including cardiac rehabilitation. Methods: Participants were recruited online and completed a one-time questionnaire. Results: Participants (n = 409) completed a questionnaire concerning their experiences with their SCAD event in the 1 y and 2 wk prior to the SCAD event. Their responses reflected moderate to high perceptions of stress. Participants experienced the SCAD event as highly stressful and frightening and their heart health presents as a moderate-severe source of current, post-diagnosis stress. Spontaneous coronary artery dissection–based informational support was frequently rated as inadequate, whereas other supportive resources varied in their helpfulness and accessibility. Participants reported positive experiences in cardiac rehabilitation and strong interest in SCAD-specific, professionally led, online patient education and support groups. Conclusions: This study is the largest to date investigation of SCAD survivors and their experiences in this understudied and perhaps underrecognized condition. Opportunities for researchers and providers to develop, tailor, and disseminate SCAD-specific interventions are discussed.

1 January 2020 in The Journal of Frailty & Aging
Verified
Journal Article
Open access
PDF file
RCRebecca S. Crow
Rebecca S. Crow
CPC. L. Petersen
C. L. Petersen
SCS. B. Cook
S. B. Cook
CSCourtney J Stevens
Courtney J Stevens
ATA. J. Titus
A. J. Titus
JBJ. A. Batsis
J. A. Batsis
A 5% change in weight is a significant predictor for frailty and obesity. We ascertained how self-reported weight change over the lifespan impacts rates of

4 September 2019 in Obesity Science & Practice
Verified
Journal Article
Open access
PDF file
John A. BatsisJohn A. Batsis
John A. Batsis
AMAuden C. McClure
Auden C. McClure
AWAaron B. Weintraub
Aaron B. Weintraub
DKDavid F. Kotz
David F. Kotz
SRSivan Rotenberg
Sivan Rotenberg
RRRichard I. Rothstein
Richard I. Rothstein
Summary: Background: The public health crisis of obesity leads to increasing morbidity that are even more profound in certain populations such as rural adults. Live, two‐way video‐conferencing is a modality that can potentially surmount geographic barriers and staffing shortages.Methods: Patients from the Dartmouth‐Hitchcock Weight and Wellness Center were recruited into a pragmatic, single‐arm, nonrandomized study of a remotely delivered 16‐week evidence‐based healthy lifestyle programme. Patients were provided hardware and appropriate software allowing for remote participation in all sessions, outside of the clinic setting. Our primary outcomes were feasibility and acceptability of the telemedicine intervention, as well as potential effectiveness on anthropometric and functional measures.Results: Of 62 participants approached, we enrolled 37, of which 27 completed at least 75% of the 16‐week programme sessions (27% attrition). Mean age was 46.9 ± 11.6 years (88.9% female), with a mean body mass index of 41.3 ± 7.1 kg/m2 and mean waist circumference of 120.7 ± 16.8 cm. Mean patient participant satisfaction regarding the telemedicine approach was favourable (4.48 ± 0.58 on 1‐5 Likert scale—low to high) and 67.6/75 on standardized questionnaire. Mean weight loss at 16 weeks was 2.22 ± 3.18 kg representing a 2.1% change (P < .001), with a loss in waist circumference of 3.4% (P = .001). Fat mass and visceral fat were significantly lower at 16 weeks (2.9% and 12.5%; both P < .05), with marginal improvement in appendicular skeletal muscle mass (1.7%). In the 30‐second sit‐to‐stand test, a mean improvement of 2.46 stands (P = .005) was observed.Conclusion: A telemedicine‐delivered, intensive weight loss intervention is feasible, acceptable, and potentially effective in rural adults seeking weight loss.