Translational journal of the American College of Sports Medicine最新文献

{"title":"Quality of Single-Case Designs Targeting Adults’ Exercise and Physical Activity","authors":"Paula-Marie M. Ferrara, Cory T. Beaumont, K. Strohacker","doi":"10.1249/TJX.0000000000000109","DOIUrl":"https://doi.org/10.1249/TJX.0000000000000109","url":null,"abstract":"Exercise and physical activity (ExPA) interventions require substantial preefficacy and efficacy testing before dissemination at the clinical and community level. Single-case designs (SCD; i.e., small-scale experiments where participants serve as their own controls) hold promise for preefficacy intervention development and refinement. At present, SCD may be underutilized in ExPA promotion, potentially because of the perceived lack of methodological rigor. Purpose: This review aimed to evaluate the quality of SCD research used to test ExPA promotion strategies in adults. Methods: Combinations of key words related to SCD and ExPA were used to search PubMed, Web of Science, and PsycINFO between July and October 2017. Of the 120 individual searches, 1227 titles were found, 10 of which met inclusion criteria. Two published quality assessment tools were then used to analyze SCD quality. Results: Average quality scores were 10 out of 14 (range 8–12) for the first tool and 13 out of 15 (range 9–15) for the second tool. Commonly unmet criteria included the use of assessor blinding (unfulfilled by 100% of studies), fidelity reporting (unfulfilled by 100%), inter-/intrarater reliability (unfulfilled by 80%), and appropriate statistical analyses (unfulfilled by 60%). Conclusion: Quality scores of SCD reporting were moderate to strong, but commonly missed criteria represent rigorous reporting standards for behavioral science. Although not specifically addressed in the quality assessment tools, it is important to note that only one study reported the ExPA prescription with replicable precision (i.e., specific reporting of exercise frequency, intensity, time, type, volume, and progression). Researchers should strive to meet all criteria and provide transparency to elevate the use of SCD for ExPA intervention development before effectiveness testing in real-world conditions. INTRODUCTION Physical inactivity in adults, a leading contributor to multiple noncommunicable diseases (e.g., metabolic disorders, certain cancers, cardiovascular disease), increases risk of premature mortality in the United States (1). Physical activity is Department of Kinesiology, Recreation, and Sport Studies, The University of Tennessee, Knoxville, Knoxville, TN Address for correspondence: Paula-Marie M. Ferrara, M.S., ACSM-CEP, Health, Physical Education, and Recreation Building, The University of Tennessee, Knoxville, 1914 Andy Holt Ave., Knoxville, TN 37996 (E-mail: pferrar1@vols.utk.edu). 2379-2868/0423/0257–0265 Translational Journal of the ACSM Copyright © 2019 by the American College of Sports Medicine http://www.acsm-tj.org Copyright © 2019 by the American College of Sports Medicine. Unauthorized repro defined as any bodily movement produced by skeletal muscle that increases energy expenditure above rest, whereas exercise (a subset of physical activity) refers to structured, repetitive activity conducted with the goal of improving one or more components of physical fitness (2). ","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42610397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anthropometric Predictors of Hemoglobin A1c among Adults: NHANES 2003 to 2004 and 2013 to 2014","authors":"M. Nicolo, C. Compher, P. Shewokis, J. Boullata, D. Sukumar, Sinclair A. Smith, S. Volpe","doi":"10.1249/TJX.0000000000000107","DOIUrl":"https://doi.org/10.1249/TJX.0000000000000107","url":null,"abstract":"\u0000 Nearly 10% of adult Americans have type 2 diabetes mellitus (DM), yet 25% are undiagnosed. Our purpose was to compare body mass index (BMI), waist circumference (WC), and waist-to-height ratio (WHtR) as predictors for type 2 DM in adults 40 to 59 yr of age. We hypothesized that BMI, WC, and WHtR would predict hemoglobin A1c (HbA1c) ≥6.5%, diagnostic of diabetes. Data from the National Health and Nutrition Examination Survey for 2003 to 2004 (N = 1069) and 2013 to 2014 (N = 906) were used in logistic regression models. There were differences in ethnic/racial distribution in the 2003 to 2004 and 2013 to 2014 sample. BMI, WC, and WHtR were higher in 2003 to 2004 than 2013 to 2014 (BMI, 29.5 vs 25.7 kg·m−2; WC, 99.8 vs 87.1 cm; WHtR, 0.59 vs 0.55, respectively, each P < 0.0001). In 2003 to 2004, WC (odds ratio = 2.65, 95% confidence interval = 1.57–4.48) and WHtR (odds ratio = 2.91, 95% confidence interval = 1.69–5.04) predicted HbA1c ≥ 6.5%, but BMI did not. In 2013 to 2014, BMI, WC, or WHtR did not predict HbA1c ≥ 6.5%. WC or WHtR may suggest risk of type 2 DM in some populations.","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46329374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Improving Physical Conditions and Female Athlete Literacy Behaviors: Intervention Study","authors":"K. Aizawa, Atsushi Iwasaki, K. Yanagisawa, Chiaki Arai, Koichiro Hayashi, Yuki Nakamura, M. Tomikawa, E. Watanabe, T. Kukidome","doi":"10.1249/tjx.0000000000000102","DOIUrl":"https://doi.org/10.1249/tjx.0000000000000102","url":null,"abstract":"\u0000 The female athlete triad is characterized by low energy availability, menstrual dysfunction, and low bone density. Female athletes are largely unaware of the triad and its consequences. Female athlete literacy is a new concept that refers to the ability to access, understand, and use sports science information relevant to female athletes. We constructed a female athlete conditioning program to disseminate knowledge about the triad; screen for physical conditions such as body composition, bone density, menstrual status, and energy balance; and improve female athlete literacy. The purpose of this study was to determine whether this program improves physical conditions and qualitative change of female athlete literacy behaviors among Japanese female soccer players. The program was evaluated during the intervention and 6 months later. Body composition, bone density, energy balance, and qualitative stage for female athlete literacy behaviors on topics such as self-conditioning, energy balance, body weight, and menstrual management were measured. The qualitative change in the stage for female athlete literacy behaviors, body weight, lean body mass, and bone density improved after the program; percent body fat significantly decreased. Energy intake significantly increased after the program, whereas exercise expenditure and energy availability did not change. This study demonstrated that a female athlete conditioning program improves body composition, energy intake, and bone density, as well as qualitative stage for female athlete literacy behaviors. These findings suggest that improving female athlete literacy may be useful for maintaining good health and improving physical conditioning among female athletes.","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1249/tjx.0000000000000102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43383644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Faith-Integrated Physical Activity Intervention and Cardiometabolic Risk in African American Women.","authors":"Lyndsey M Hornbuckle, Ziya Gizlice, Daniel P Heil, Melicia C Whitt-Glover","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To determine the effects of a 10-month secular (SEC) versus faith-integrated (FI) community-based physical activity (PA) intervention on cardiometabolic risk factors in low active, African-American women.</p><p><strong>Methods: </strong>Participants (age: 55.4±11.6 years; body mass index (BMI): 36.0±7.9 kg/m²; average baseline steps/day: 3,807±1,250) from a larger study (n=418) participated in a sub-study to measure cardiometabolic disease indicators (primary outcomes) and PA (secondary outcomes) pre- and post-intervention (SEC: n=42; FI: n=43). Height, weight, waist and hip circumferences, resting blood pressure, hemoglobin A1c, average steps/day, sedentary behavior, light-intensity physical activity (LPA), and moderate-to-vigorous-intensity physical activity (MVPA) were acquired at baseline and 10 months. Multivariate generalized linear mixed models that included churches as a random effect were used to compare mean changes in outcomes at 10 months between the two study groups (α=0.05).</p><p><strong>Results: </strong>The FI group showed significant time effects for weight (93.4±2.4 to 92.2±2.3 kg), BMI (35.7±1.0 to 35.3±1.0 kg/m²), and waist circumference (106.9±2.2 to 103.8±2.5 cm), while the SEC group had a significant time effect for hip circumference (121.6±1.9 to 119.9±1.7 cm). There were no time effects in either group for blood pressure, hemoglobin A1c, steps/day, sedentary time, or MVPA. FI significantly decreased LPA in both 1-minute activity bouts (641±13 to 588±16 minutes/day) and 10-minute bouts (536±11 to 479±15 minutes/day). There were no significant differences between SEC and FI for any variable.</p><p><strong>Conclusions: </strong>The improvements in body weight, BMI, and waist circumference shown after the FI intervention could have long-term implications on cardiometabolic health, particularly if exercise is continued. Further research is needed to examine the effects of culturally-relevant interventions on chronic disease indicators in African-American women, particularly those established as high risk for cardiometabolic disease.</p>","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":"4 19","pages":"225-234"},"PeriodicalIF":1.1,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7802800/pdf/nihms-1534442.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38750981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mediators of a 12-month change in physical activity in ethnically diverse sample of postpartum women.","authors":"Cheryl L Albright,&nbsp;Lynne R Wilkens,&nbsp;Kara Saiki,&nbsp;Kami K White,&nbsp;Alana D Steffen","doi":"10.1249/TJX.0000000000000106","DOIUrl":"https://doi.org/10.1249/TJX.0000000000000106","url":null,"abstract":"<p><strong>Purpose: </strong>Understanding theoretically derived social and behavioral mediators of long-term increases in physical activity (PA) in a vulnerable population at risk for being underactive is needed to inform future research, clinical applications, and public health efforts. This is an analysis of potential mediators of an intervention that increased long-term (12-month) moderate-to-vigorous physical activity (MVPA) in postpartum (2-12months) women in a randomized trial, using a longitudinal analysis.</p><p><strong>Methods: </strong>Healthy, underactive (i.e., not meeting national guidelines for MVPA) women (n = 311; mean age = 32 ± 5.6 years, 85% minorities) with infants (mean age: 5.7 ± 2.8 months) were randomly assigned to either a tailored eHealth condition consisting of personalized telephone counseling plus access to a website tailored to new mothers' MVPA issues or to a standard MVPA materials-only website. MVPA was assessed via surveys completed at baseline, then 6 and 12 months later. Theoretically derived mediators included social support for MVPA, self-efficacy to increase MVPA, barriers to increasing MVPA, and benefits of increasing MVPA.</p><p><strong>Results: </strong>All mediators, except benefits, improved over the 12 months in the tailored eHealth condition. The tailored condition's effect on increasing MVPA from 6 months to 12 months was mediated by an increase in social support from baseline to six months. No other hypothesized mediators were significant.</p><p><strong>Conclusion: </strong>Our results demonstrated that learning strategies to increase social support for MVPA was instrumental in new mothers' increase in MVPA over a 12 month intervention. During this brief but impactful life-stage, where the focus can understandably be on her baby, being able to elicit support from friends and family may facilitate women's efforts to focus on their own needs with respect to MVPA.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov number.</p>","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":"4 19","pages":"215-224"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6980416/pdf/nihms-1530278.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37581555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A 2-yr Biomechanically Informed ACL Injury Prevention Training Intervention in Female Field Hockey Players","authors":"G. Weir, J. Alderson, B. Elliott, Shina (née: Lee) Leow, D. Devaprakash, K. Starre, C. Goodman, J. Cooke, C. Rechichi, J. Armstrong, B. Jackson, C. Donnelly","doi":"10.1249/TJX.0000000000000105","DOIUrl":"https://doi.org/10.1249/TJX.0000000000000105","url":null,"abstract":"\u0000 \u0000 \u0000 Anterior cruciate ligament (ACL) injury prevention programs have been shown to have mixed success in reducing injury rates, raising the question whether these programs are effectively targeting biomechanical mechanisms of injury. The current study examined the efficacy of a biomechanically informed ACL injury prevention training program in reducing injury risk and injury incidence and investigated its effect on athletic performance.\u0000 \u0000 \u0000 \u0000 Twenty-six elite female field hockey players participated in this study.\u0000 \u0000 \u0000 \u0000 Athletes participated in a 2-yr injury prevention training program. Injury incidence (i.e., lower limb and ACL) and athletic performance (i.e., strength, speed, and aerobic power) were measured during a control season and after two intervention seasons. Biomechanical ACL injury risk factors were recorded during unplanned sidestepping at baseline and after intensive (9 wk: 4 × 20 min·wk−1) and maintenance (16 wk: 3 × 10 min·wk−1) training phases for a subset of athletes (n = 17).\u0000 \u0000 \u0000 \u0000 Training was effective in reducing ACL and lower limb injury incidence after the 2-yr program, where zero ACL injuries occurred after implementation (vs 0.4 per 1000 player hours in the control year). High-risk athletes reduced their peak knee valgus moments by 30% (P = 0.045) and demonstrated improvements in desirable muscle activation strategies after intensive training. The majority of benefits elicited in intensive training were retained during the maintenance phase. One-repetition max strength, beep test scores, and sprint times improved or were maintained over the 2-yr intervention period.\u0000 \u0000 \u0000 \u0000 Biomechanically informed injury prevention training was successful in reducing both biomechanical ACL injury risk factors and ACL injury incidence while maintaining and/or improving athletic performance. It is important to consider the biomechanical mechanisms of injury when designing injury prevention programs.\u0000","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1249/TJX.0000000000000105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47013289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occupational Differences in Barriers and Incentives for Routine Exercise among Municipal Workers","authors":"B. Melton, T. K. Kessinger, G. Ryan, A. Riggs","doi":"10.1249/tjx.0000000000000094","DOIUrl":"https://doi.org/10.1249/tjx.0000000000000094","url":null,"abstract":"\u0000 The U.S. Department of Health and Human Services recommends that employers create healthy worksites through promotion wellness programs that included routine exercise, daily physical activity, and nutritional education among other initiatives.\u0000 \u0000 \u0000 This study aimed to identify barriers and incentives of routine exercise in varying occupations among rural municipal workers in Southeast Georgia.\u0000 \u0000 \u0000 \u0000 A cross-sectional research design was used to evaluate the barriers and incentives for exercise among rural municipal workers in a rural setting. The four occupational departments used for analysis were as follows: fire, police, public works, and administration/other. An electronic survey was sent to all 309 workers on November 2016. The survey asked for participants to rank 10 common exercise barriers and incentives. One-hundred and twenty-three (~40%) complete responses were used for analysis.\u0000 \u0000 \u0000 \u0000 Based on a personal ranking, lack of time to exercise (mean = 2.2), inconvenient time/location of a facility (2.5), and no motivation (5.3) were found to be the top three barriers across all employees. No significant differences (P > 0.05) between departments were found for nine of the exercise barrier rankings. “Cost is too much” was only significantly different result found (P = 0.019) between departments, with fire department reporting lower than the other departments. Another barrier approaching significance was “feel awkward exercising” (P = 0.054).\u0000 \u0000 \u0000 \u0000 The results suggest that a variation of motivators and incentives, depending on occupational responses, could be a successful means of improving exercise in all employees, instead of implementing a single motivating tactic based on the raw majority.\u0000","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44549261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Faith-Integrated Physical Activity Intervention and Cardiometabolic Risk in African American Women.","authors":"Lyndsey M. Hornbuckle, Z. Gizlice, D. Heil, M. Whitt-Glover","doi":"10.1249/tjx.0000000000000110","DOIUrl":"https://doi.org/10.1249/tjx.0000000000000110","url":null,"abstract":"PURPOSE\u0000To determine the effects of a 10-month secular (SEC) versus faith-integrated (FI) community-based physical activity (PA) intervention on cardiometabolic risk factors in low active, African-American women.\u0000\u0000\u0000METHODS\u0000Participants (age: 55.4±11.6 years; body mass index (BMI): 36.0±7.9 kg/m2; average baseline steps/day: 3,807±1,250) from a larger study (n=418) participated in a sub-study to measure cardiometabolic disease indicators (primary outcomes) and PA (secondary outcomes) pre- and post-intervention (SEC: n=42; FI: n=43). Height, weight, waist and hip circumferences, resting blood pressure, hemoglobin A1c, average steps/day, sedentary behavior, light-intensity physical activity (LPA), and moderate-to-vigorous-intensity physical activity (MVPA) were acquired at baseline and 10 months. Multivariate generalized linear mixed models that included churches as a random effect were used to compare mean changes in outcomes at 10 months between the two study groups (α=0.05).\u0000\u0000\u0000RESULTS\u0000The FI group showed significant time effects for weight (93.4±2.4 to 92.2±2.3 kg), BMI (35.7±1.0 to 35.3±1.0 kg/m2), and waist circumference (106.9±2.2 to 103.8±2.5 cm), while the SEC group had a significant time effect for hip circumference (121.6±1.9 to 119.9±1.7 cm). There were no time effects in either group for blood pressure, hemoglobin A1c, steps/day, sedentary time, or MVPA. FI significantly decreased LPA in both 1-minute activity bouts (641±13 to 588±16 minutes/day) and 10-minute bouts (536±11 to 479±15 minutes/day). There were no significant differences between SEC and FI for any variable.\u0000\u0000\u0000CONCLUSIONS\u0000The improvements in body weight, BMI, and waist circumference shown after the FI intervention could have long-term implications on cardiometabolic health, particularly if exercise is continued. Further research is needed to examine the effects of culturally-relevant interventions on chronic disease indicators in African-American women, particularly those established as high risk for cardiometabolic disease.","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":"4 19 1","pages":"225-234"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45589837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time to Elevate the Education of Clinical Exercise Physiologists: A Professional Doctorate Model","authors":"C. Ozemek, L. Kaminsky, P. Brubaker, C. Lavie, R. Arena","doi":"10.1249/TJX.0000000000000093","DOIUrl":"https://doi.org/10.1249/TJX.0000000000000093","url":null,"abstract":"\u0000 The increasing prevalence of noncommunicable diseases and multimorbidity negatively affects an individual’s quality of life and health trajectory; this trend and resultant personal and clinical outcomes are of significant concern. Healthy living (HL) behaviors (physical activity, dietary modification, smoking cessation, and medication compliance) are known to provide substantial health benefits that slow the progression or in some cases reverse the deleterious effects associated with inactivity and consumption of a diet high in sodium, fat content, added sugars, and energy-dense foods. However, it is becoming increasingly clear that a one-size-fits-all approach to HL interventions in populations at risk for or diagnosed with noncommunicable diseases is inadequate to promote optimization of health outcomes. Practitioners implementing HL interventions, such as clinical exercise physiologists (CEP), must instead understand the complexity or multimorbidity phenotypes and be able to effectively tailor programs for each condition. Although CEP may receive master’s level training in this area, the rise in patients with complex multimorbidity warrants consideration of elevating the professional expectations to better prepare CEP in training to deliver highly effective primary and secondary prevention HL interventions. Many licensed allied health professions (i.e., physical therapy, pharmacy, occupational therapy, nursing, nutrition, etc.) have recognized the call to move toward professional doctoral degree programs to better prepare practitioners within their field. This article proposes a professional doctorate degree program aimed at enhancing the training of CEP to become highly effective practitioners.","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44344896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prescription Thyroid Replacement Does Not Affect Outcomes in an Intensive Weight Reduction Program","authors":"Gerald C. Dembrowski, Jessica W. Barnes","doi":"10.1249/TJX.0000000000000092","DOIUrl":"https://doi.org/10.1249/TJX.0000000000000092","url":null,"abstract":"\u0000 With the complex role of the thyroid in metabolism and conflicting evidence of weight gain or loss as a result of prescription thyroid hormone replacement (THR), it is important to understand how THR affects weight loss beyond the standard measures of body weight % and body mass index (BMI). We examined differences in body composition improvement in individuals taking and not taking THR over 60 d of an intensive weight loss program. The 20Lighter Program (T20LP), a doctor-supervised weight loss and metabolic health program, included 6 wk of patent-pending very low calorie meal plans and a 3-wk customized transition back to a normal dietary intake. Of 2200 participants completing T20LP by December 31, 2017, ~10% reported taking prescription THR. From initial baseline to 60 d, T20LP participants from both groups showed statistically significant and clinically meaningful reductions in body weight, BMI, % body fat, visceral fat, metabolic age, and increases in % body water. To our knowledge, our study is the first large-scale analysis comparing weight loss outcomes in participants who take THR and participants who do not. Our data show both groups do equally well with respect to % body weight lost, BMI reduction, body fat and visceral fat reduction, and improvement in tissue hydration, and we found no disadvantage in any physiologic or metabolic outcome in weight loss participants on THR. Weight loss participants requiring prescription THR are capable of achieving body composition and metabolic improvements on par with those who do not require prescription THR.","PeriodicalId":75243,"journal":{"name":"Translational journal of the American College of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43326284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}