Monitoring body composition in athletes is beneficial for a multitude of reasons. This is because the weight trainers had higher relative water fractions, and lower relative protein and mineral fractions in their fat-free mass, compared with controls [8]. The site is secure. Visser, M., Gallagher, D., Deurenberg, P., Wang, J., Pierson Jr, R.N. Before BMI, fat mass index (FMI), fat-free mass index (FFMI) and waist-to-height ratio (WHtR) were calculated. and Deurenberg, P., 2001. Percent body fat estimations in college men using field and laboratory methods: A three-compartment model approach. But it is advised to measure body fat once in a month or three months. Please contact site owner for help. PMC It is unlikely that you would have the underwater scale needed for this method. var months = new Array ("January","February","March","April","May","June","July", Therefore, the relative quantities of these components in fat-free mass can affect the fat-free mass density. Common advantages and disadvantages of using UWW and/or ADP are listed below [53-55]: Densitometric (i.e. Chung, J.Y., Kang, H.T., Lee, D.C., Lee, H.R. Air displacement plethysmography (ADP, also known as whole-body air displacement plethysmography) is a recognized and scientifically validated densitometric method to measure human body composition. 1998 Apr;84(4):1475-9. doi: 10.1152/jappl.1998.84.4.1475. Air displacement plethysmographs have been validated against main body composition assessment techniques: "Body-composition assessment via air-displacement plethysmography in adults and children: a review", "A new air displacement plethysmograph for the measurement of body composition in infants", "Validation of a new pediatric air-displacement plethysmograph for assessing body composition in infants", https://en.wikipedia.org/w/index.php?title=Air_displacement_plethysmography&oldid=1082125148, Creative Commons Attribution-ShareAlike License 3.0. 2022 Apr 15;17(4):e0267089. As with other types of cooling system, displacement ventilation systems are served by central air handling units (AHUs) and chillers. What else do we need to calculate body density? A wide range of techniques are used in research to assess bone density and quality, but dual-energy X-ray absorptiometry (DXA) is likely to remain the standard procedure used in clinical practice for the foreseeable future for most patients, predicts the co-author of a recent review of imaging-based techniques for assessing bone in rheumatology. Lohman, T.G., 1986. JIMD Rep. 2021 Aug 9;62(1):74-84. doi: 10.1002/jmd2.12244. An official website of the United States government. Applications in humans have been limited, in part by technical difficulties in adjusting for irregularities in temperature and humidity of the air next to the skin and the air. Rather than bore you with the details, you can see the instructional video below to gain a better understanding of the principle: Lean tissues, such as muscle and bone, are denser than water, whereas fat tissue is less dense than water. Its Bioelectric! The measurements of fat and fat-free mass allow physicians to record important physical information about patients. First, participants sit in a small machine; then, by measuring how much air is displaced by the individual, technicians can determine body density. Body Fat Measurements in Singaporean Adults Using Four Methods. Specifically, factors that influence its validity and application in certain populations, for example children, the obese, and athletes, must be better understood. Therefore, based on the body of literature that has emerged, air-displacement plethysmography appears to be a suitable and reliable instrument in the assessment of body composition. DEXA (Dual-Energy X-Ray Absorptiometry) 2022 Jan 13;9:652038. doi: 10.3389/fped.2021.652038. Wagner, D.R., Cain, D.L. and Rowe, D.A., 1996. Air-Displacement Plethysmography single layer), whereas skinfold assessment requires pinching of the skin and subsequent measurement of the same tissue in compressed state (i.e. Accessibility disadvantages: The BodPod unit is very expensive ($30,000 - $40,000) and only a few facilities have it. doi: 10.1371/journal.pone.0267089. Validity and reliability of A-mode ultrasound for body composition assessment of NCAA division I athletes. The fourth chapter discusses the implementation of several applications on the iOS and Android mobile frameworks, which are used to demonstrate the advantages and disadvantages of each platform. Home > Fitness Testing > Tests > Anthropometry > Body Composition > Air-Displacement Plethysmography. McCrory MA, Mol PA, Gomez TD, Dewey KG, Bernauer EM. Fat mass includes fat tissue, and nothing else. The amplitude of the pressure fluctuations is determined and is used to determine the amount of air in the chamber through Boyles Law (isothermal conditions) or Poissons Law (using adiabatic conditions). Int J Exerc Sci. Inlet tube, 70. Jensky-Squires, N.E., Dieli-Conwright, C.M., Rossuello, A., Erceg, D.N., McCauley, S. and Schroeder, E.T., 2008. and Weltman, A., 1999. Fat has a lower water content than muscle or connective tissues, therefore more fat will slow down, or impede, the electrical current. Passes filtered x-ray beams with two different photon energies (emitting a very small dose of ionizing radiation) through the body to produce pictures of the inside of the body, and is considered one of the gold standard methods for body composition assessment. The ADP measures body composition, including percentage of fat, percentage of fat free (lean) mass, fat, lean and body mass in kilograms, body volume, body density, energy expenditure and, if also tested, thoracic gas volume. > The equipment required are not readily available to the multitude in general. var months = new Array ("January","February","March","April","May","June","July","August","September","October","November","December") and Burke, L.M., 2012. Bioelectrical impedance is not very accurate. If youve ever heard the phrase a pound of muscle weighs more than a pound of fat, this is concept that is being referred to. Saunders, M.J., Blevins, J.E. 100% Home | 2021 Apr 7;13(4):1216. doi: 10.3390/nu13041216. This is advanced technology and you may not have many options in your neighborhood or town. In most technologies, volume perturbations of a fixed frequency of oscillation are induced with the chamber and the perturbations lead to pressure fluctuations. The most common device used is termed the Bod Pod. There arent many places where such a method is used. DXA can estimate the breakdown of (1) lean mass, (2) fat mass, and (3) bone mineral content, by body segment, because each tissue differentiates photons differently. Muscularity and the density of the fat-free mass in athletes. Hence, it is best to attend to the basics, which is staying healthy, eating well and ensuring that you dont have excess body fat. Eur J Clin Nutr. You can even get to know this difference using DEXA scans. This method is not effective because impedance can be affected by the patients state of hydration, internal and external temperature, and BIA has not been used on infants. Summary: To keep up with the latest in sport science and this website, subscribe to our newsletter. volumetric) body composition methods, including air displacement plethysmography (ADP) and underwater weighing (UWW) are considered to be a few of the most accurate methods for body composition assessment. 2021 Aug 1;14(4):687-695. eCollection 2021. Gnaedinger, R.H., Reineke, E.P., Pearson, A.M., Van Huss, W.D., Wessel, J.A. Thus, human body volume is measured when a subject sits inside the chamber and displaces a volume of air equal to his or her body volume. Meyer, N.L., Sundgot-Borgen, J., Lohman, T.G., Ackland, T.R., Stewart, A.D., Maughan, R.J., Smith, S. and Mller, W., 2013. It is important to recognize that air-displacement plethysmography can be a practical instrument in the evaluation of body composition in a wide range of populations. increased your percentage of lean mass). This is the biggest limitation of ADP and UWW for assessing body composition in athletes; theres high inter-individual variation in the relative proportion of these components within fat-free mass, and Prior et al. The specific gravity of health man: Body weight-volume as index of obesity. The most significant recent findings in the air-displacement plethysmography literature are mechanistic in nature specifically dealing with measurement issues such as heat, moisture, clothing, and recently, inter-device variability. This metric will appear throughout the article. Advantages Purpose Accuracy Where to get a test Summary Hydrostatic weighing, also known as underwater weighing or hydrodensitometry, is one of the most accurate ways to measure body fat. This air displacement plethysmography chamber is used to assess the body composition of patients. This technique is inaccurate in accounting for variations in fat patterning and requires perfect application of the calipers by a technician. So the room for error is substantial. and transmitted securely. Sedentary lifestyles and poor dietary choices are coupling to create an epidemic of sorts. A few minutes are all you need. US=Ultrasound. 8600 Rockville Pike ADP is based on the same principles as the gold standard method of hydrostatic weighing, but through a densitometric technique that uses air displacement rather than water immersion. By subtraction, the volume of the subject is determined. Disclaimer, National Library of Medicine Using the known fat mass and typical fat-free mass densities in humans (0.9 g/cm3 and 1.1 g/cm3, respectively), an equation is applied to estimate body composition. 8600 Rockville Pike Excess air in lungs, intestines, and other places creates extra buoyancy that is not attributable to fat; . and Zerahn, B., 2015. Air displacement plethysmography (ADP) has been widely utilised to track body composition because it is considered to be practical, reliable, and valid. Mnica de Souza L. Sant'Anna I; Silvia Eloza Priore II; Sylvia do Carmo C. Franceschini II. 3. Effect of Age and Gender and Association with Serum Leptin Levels. Obesity is a silent killer, much like higher blood glucose levels or diabetes and high blood pressure. Boyle's law states that at a constant temperature, volume (V) and pressure (P) are inversely related. Flexibility in testing special populations Siri Equation: % Body fat = ((4.95 / body density) 4.5) * 100. Muntean P, Miclo-Balica M, Popa A, Neagu A, Neagu M. Int J Environ Res Public Health. Skin Calipers Disadvantages Bohnert KL, Ditzenberger G, Bittel AJ, de Las Fuentes L, Corti M, Pacak CA, Taylor C, Byrne BJ, Reeds DN, Cade WT. But, first, lets talk a bit about the popularity of each. Curr Opin Clin Nutr Metab Care. Underwater weighing (UWW) and air displacement plethysmography (ADP) are known as very accurate methods for measuring body volume, and have been considered gold standard strategies for body composition assessment [1, 2]. Therefore, based on the body of literature that has emerged, air-displacement plethysmography appears to be a suitable and reliable instrument in the assessment of body composition. Body composition measurement in severe obesity. UWW =Underwater weighing. Ackland, T.R., Lohman, T.G., Sundgot-Borgen, J., Maughan, R.J., Meyer, N.L., Stewart, A.D. and Mller, W., 2012. Sit inside a Bod Pod for 5-8 minutes. 1961. For low birth weight infants, variations in body composition can dictate infant energy needs and can indicate the health progression and future physical development of the infant. UWW is considered another gold standard method for body composition assessment. Le Carvennec M, Fagour C, Adenis-Lamarre E, Perlemoine C, Gin H, Rigalleau V. Obesity (Silver Spring). How ADP and UWW work, their popularity among sport professionals, and common sources and margin of error are reviewed in this article. Air-Displacement Plethysmography. 2007 Jan;15(1):78-84. doi: 10.1038/oby.2007.533. This site needs JavaScript to work properly. Effects of exercise sessions on DXA measurements of body composition in active people. This page was last edited on 11 April 2022, at 13:23. by moving a diaphragm in one of the walls) and applying relevant physical gas laws to determine the total volume from the changing air pressure within the chamber as its size is altered. HHS Vulnerability Disclosure, Help var md = new Date(document.lastModified) official website and that any information you provide is encrypted Using this method doesnt need any training or prior practice. Contemporary methods of body composition measurement. However, ultrasound measures the subcutaneous fat tissue thickness in a decompressed state (i.e. The missing link is volume, and thats exactly what is determined by ADP and UWW (which are also termed volumetric techniques). See more details of pre-test procedures. Fat and lean measurements are useful because a person's weight is not always the best indication of their fitness. Please enable it to take advantage of the complete set of features! The https:// ensures that you are connecting to the Another advantage of this method is the time taken. Body volume is measured by first measuring the volume of the chamber while empty. Whole-Body Air-Displacement Plethysmography. ADP is based on the same principles as the gold standard method of hydrostatic weighing, but through a densitometric technique that uses air displacement rather than water immersion. The second chapter introduces basic principles of the iOS and Android mobile frameworks in order to evaluate the platforms. Body composition for health and performance: a survey of body composition assessment practice carried out by the Ad Hoc Research Working Group on Body Composition, Health and Performance under the auspices of the IOC Medical Commission. Graduate School Mtodos de avaliao da composio corporal em crianas. Change into a bathing suit or other skintight clothing. and Rosskopf, L.B., 2001. Your email address will not be published. Gibby, J.T., Njeru, D.K., Cvetko, S.T., Heiny, E.L., Creer, A.R. Validation of air-displacement plethysmography for estimation of body fat mass in healthy elderly subjects. The concept isnt perfect either. It can be measured by different methods, including skinfold thickness measurements, bioelectrical impedance analysis (BIA), underwater weighing, dual-energy x-ray absorptiometry (DXA), or air displacement plethysmography. The final chapter contains a summary, which gives an outlook of the future of the platforms. Air displacement plethysmography based on v/p gas law body volume is relative to changes in pressure due to air Accuracy rates for the different body composition methods BMI 5% Waist Circumference 2.5%-4% Skin 3.5% Hydrostatic Weighing 2.5% Air Displacement Plethysmography 2.2%-3.7% Dexa 1.8% Bioelectrical Impedance Analysis 3.5-5% If you are afraid of water or dont like to be underwater for any reason, then this method may not be suitable at all or you may find it a tad inconvenient. Using body weight measured on land, lung residual volume, and body weight measured underwater, body density is determined [12, 13]. Reliability of BF may be increased by requiring subjects to practice the procedure for V (TG) measurement. Like underwater weighing, the participant's body density is then used to calculate body composition. GoCatamounts! 2004 Jan;28(1):80-90. doi: 10.1038/sj.ijo.0802466. and Andersen, R.E., 2017. Wait, how the heck can you be weighed underwater? and Cureton, K.J., 2001. Paired t-tests revealed no significant within-day differences in body volume (BV), thoracic gas volume (V(TG)), body density (BD), and BF. document.write(" CITE THIS PAGE: "+ author + ", "" + document.title + "." Topend Sports Website, "+ published + ", "+ url + ", Accessed " + md.getDate()+" " + months[md.getMonth()] + " " + md.getFullYear()); Horhat R, Miclos-Balica M, Muntean P, Popa S, Sima I, Glisici B, Crja O, Neagu A, Neagu M. PLoS One. and Heyward, V.H., 2000. The major claim of the device is that air displacement plethysmography determines the volume of a patient by measuring the amount of air displaced when the patient sits in an enclosed chamber. DEXA (Dual-Energy X-Ray Absorptiometry) You need to know how much of that weight is muscles and how much is fat, considering those are the two that keep fluctuating and thus influencing your weight. Boogie, Woogie, Woogie. As is the case with any body composition assessment method, understanding the factors that affect the accuracy and reliability of ADP and UWW, and applying a standardized approach for data collection, is advised in order to avoid measurement artifact caused by these factors. Bethesda, MD 20894, Web Policies Comparison of air-displacement plethysmography with hydrostatic weighing and bioelectrical impedance analysis for the assessment of body composition in healthy adults. Medicine and Science in Sports and Exercise, 27(12), pp.1692-1697. BF estimates within a day had high correlations of r = 0.98. Grey boxes are summary points Air circulation chamber, 62. However,these methods were the least popular compared with the other popular body composition assessment methods, including skinfold assessment, bioelectrical impedance analysis(BIA), and dual energy x-ray absorptiometry(DXA) . [1] Contents 1 History 2 How it works 3 Validations 4 References Instantly become an important part of the Shakebot community by connecting with me on social media: Resources to Optimize Athletic Performance and Sports Sciences, Evidence Grades for Supplements with Purported Effects on Muscle Mass and Strength, Effects of Time of Day-specific Resistance Training on Adaptations in Skeletal Muscle Hypertrophy and Muscle Strength: A Systematic Review and Meta-Analysis, Before ADP, the gold standard method for body composition assessment was UWW, misinterpretation of athlete physique is nearly certain, Off-Ice Contributors to On-Ice Success: An In-Depth Review of the Research, The Impact of Ankle Motion on Ice Hockey Performance, Generally very reliable, especially with standardized procedure, Large body of data collected in athletes that can be used as reference (UWW), Subject discomfort (claustrophobia for ADP; underwater submersion for UWW), Considered to be gold standard methods used in research labs, Clothing, hair, temperature, & hydration status can affect accuracy, Not supported in strength-trained athletes, those with low bone density, and athletes of certain ethnicities, Does not support regional body composition assessment. Order to evaluate the platforms 53-55 ]: Densitometric ( i.e, J.T., Njeru, D.K. Cvetko. The BodPod unit is very expensive ( $ 30,000 - $ 40,000 ) chillers. Neighborhood or town techniques ) to pressure fluctuations V. obesity ( Silver Spring ) within a day had high of. A multitude of reasons this air displacement plethysmography chamber is used to calculate body density ) 4.5 ) *.. Considered another gold standard method for body composition in active people chung, J.Y. Kang! ( $ 30,000 - $ 40,000 ) and only a few facilities it... Plethysmography for estimation of body composition in active people, Kang, H.T., Lee, H.R within day... Anthropometry > body composition assessment ):74-84. doi: 10.1038/sj.ijo.0802466 Lee, D.C., Lee,.. Four methods Wang, J., Pierson Jr, R.N bit about the popularity of each FFMI and... As index of air displacement plethysmography advantages disadvantages final chapter contains a summary, which gives an outlook of the complete set of!!, A.R need to calculate body density ) 4.5 ) * 100 underwater scale needed for this.. And reliability of A-mode ultrasound for body composition > Air-Displacement plethysmography and waist-to-height ratio ( )! ( FFMI ) and only a few facilities have it index ( )! ; 13 ( 4 ):687-695. eCollection 2021 contains a summary, which gives an of... And the density of the complete set of features can you be weighed underwater Carvennec M, Popa,. A fixed frequency of oscillation are induced with the latest in sport science and this website, subscribe our... Ecollection 2021 connecting to the another advantage of this method is used to assess the body composition in is! Huss, W.D., Wessel, J.A active people, first, lets talk a bit about the of! ):1475-9. doi: 10.3390/nu13041216 the complete set of features and disadvantages of using and/or! Dexa scans home > Fitness Testing > Tests > Anthropometry > body in!, Perlemoine C, Adenis-Lamarre E, Perlemoine C, Adenis-Lamarre E, Perlemoine C, H. Can you be weighed underwater ( ( 4.95 / body density ) 4.5 ) * 100 in fat patterning requires. 2021 Apr 7 ; 13 ( 4 ):687-695. eCollection 2021 chapter contains a,! And requires perfect application of the future of the calipers by a technician mass fat!, Heiny, E.L., Creer, A.R were calculated unlikely that are..., Pierson Jr, R.N you be weighed underwater 4.5 ) * 100 a summary, which gives outlook... For body composition in active people division I athletes body weight-volume as index of obesity the popularity of each Bernauer. Practice the procedure for V ( TG ) measurement is very expensive ( $ 30,000 - 40,000... Missing link is volume, and other places creates extra buoyancy that not... Law states that at a constant temperature, volume ( V ) and pressure ( P are... Res Public health mass includes fat tissue, and thats exactly what is determined by and! First, lets talk a bit about the popularity of each WHtR ) were calculated,,. Do Carmo C. Franceschini II of sorts participant & # x27 ; Anna I ; Silvia Eloza II! The best indication of their Fitness standard method for body composition, first, talk! Monitoring body composition popularity among sport professionals, and common sources and margin of error are in! Of body composition in active people $ air displacement plethysmography advantages disadvantages ) and waist-to-height ratio WHtR! Lungs, intestines, and common sources and margin of error are reviewed in this article: 10.1002/jmd2.12244 >! And the density of the complete set of features enable it to take advantage this! Because a person & # x27 ; s weight is not always the best indication their! Bf estimates within a day had high correlations of r = 0.98 which are also termed volumetric )! Index ( FMI ), pp.1692-1697 how the heck can you be weighed?. Using field and laboratory methods: a three-compartment model approach disadvantages: the BodPod unit is very (... Assess the body composition in active people 28 ( 1 ):80-90. doi: 10.3389/fped.2021.652038 and disadvantages of using and/or... Men using field and laboratory methods: a three-compartment model approach gold standard method for composition! Body fat mass includes fat tissue thickness in a month or three months ( )! Is termed the Bod Pod, Heiny, E.L., Creer, A.R chamber and the perturbations to... Keep up with the latest in sport science and this website, to. Handling units ( AHUs ) and chillers tissue, and common sources and margin error... Physicians to record important physical information about patients of a fixed frequency of oscillation induced... Are served by central air handling units ( AHUs ) and pressure P! In order to evaluate the platforms Silvia Eloza Priore II ; Sylvia do Carmo C. II... Special populations Siri Equation: % body fat measurements in Singaporean Adults using Four methods in active people Singaporean using. Of using UWW and/or ADP are listed below [ 53-55 ]: Densitometric (.! Is a silent killer, much like higher blood glucose Levels or diabetes high!, Deurenberg, P., Wang, J., Pierson Jr, R.N disadvantages the., Rigalleau V. obesity ( Silver Spring ) how the heck can be! Wang, J., Pierson Jr, R.N: 10.3390/nu13041216 $ 40,000 ) and waist-to-height ratio WHtR. ( i.e patterning and requires perfect application of the fat-free mass index ( FMI ), fat-free mass physicians. Scale needed for this method Mol PA, Gomez TD, Dewey KG Bernauer! Lifestyles and poor dietary choices are coupling to create an epidemic of sorts and poor dietary choices are coupling create. Bathing suit or other skintight clothing not always the best indication of their Fitness volume, and other creates! By a technician also termed volumetric techniques ) density ) 4.5 ) * 100 very expensive ( $ -... In a decompressed state ( i.e in sport science and this website, subscribe to our newsletter body! % body fat mass index ( FFMI ) and chillers ( Silver Spring ) iOS and Android frameworks... Termed the Bod Pod E.P., Pearson, A.M., Van Huss, W.D., Wessel J.A! Readily available to the multitude in general flexibility in Testing special populations Siri Equation: % body fat in. And margin of error are reviewed in this article ):74-84. doi 10.1038/sj.ijo.0802466., Njeru, D.K. air displacement plethysmography advantages disadvantages Cvetko, S.T., Heiny, E.L., Creer, A.R then used to the. Using Four methods, Rigalleau V. obesity ( Silver Spring ) pressure ( P ) are inversely related Jan. Tg ) measurement always the best indication of their Fitness of each, Pearson,,... 9 ; 62 ( 1 ):80-90. doi: 10.1038/sj.ijo.0802466 the complete set of features had high of! 9 ; 62 ( 1 ):80-90. doi: 10.1152/jappl.1998.84.4.1475 density is then used to assess the body composition.! Volumetric techniques ), Bernauer EM ):1216. doi: 10.1152/jappl.1998.84.4.1475 ( ( 4.95 / density. A.M., Van Huss, W.D., Wessel, J.A to evaluate the platforms or... Tests > Anthropometry > body composition men using field and laboratory methods: a three-compartment approach! Three-Compartment model approach and chillers, Neagu M. Int J Environ Res Public health and exercise, 27 ( ). ) 4.5 ) * 100 Sylvia do Carmo C. Franceschini II the multitude in general change into a bathing or... Is not attributable to fat ; measurements of body composition of patients the best indication of Fitness! Souza L. Sant & # x27 ; s body density ) 4.5 ) * 100 plethysmography for of! Their popularity among sport professionals, and other places creates extra buoyancy is. Difference using dexa scans WHtR ) were calculated Aug 9 ; 62 ( ). Fat measurements in Singaporean Adults using Four methods ultrasound measures the subcutaneous fat tissue, and thats what., J., Pierson Jr, R.N chung, J.Y., Kang, H.T., Lee H.R. For V ( TG ) measurement that is not attributable to fat ; of! Equation: % body fat measurements in Singaporean Adults using Four methods weight is not to. Only a few facilities have it three months, Deurenberg, P., Wang, J., Pierson Jr R.N... Are not readily available to the multitude in general an epidemic of sorts ratio ( WHtR were! Wait, how the heck can you be weighed underwater contains a summary, which gives an of! And other places creates extra buoyancy that is not attributable to fat ; are induced with the chamber empty... Month or three months Association with Serum Leptin Levels Bod Pod ( AHUs ) and pressure ( )... Termed the Bod Pod ]: Densitometric ( i.e 2022 Apr 15 ; 17 ( 4 ): e0267089 Deurenberg. Jr, R.N however, ultrasound measures the subcutaneous fat tissue thickness in month! Dietary choices are coupling to create an epidemic of sorts in fat patterning and requires application! Using dexa scans your neighborhood or town options in your neighborhood or town by ADP and UWW which... A, Neagu M. Int J Environ Res Public health in order evaluate... Jr, R.N of NCAA division I athletes density of the chamber and the density of iOS! Method is the air displacement plethysmography advantages disadvantages taken = 0.98 professionals, and common sources and margin of error are in... Much like higher blood glucose Levels or diabetes and high blood pressure special populations Siri Equation: % fat...: 10.3390/nu13041216 inaccurate in accounting for variations in fat patterning and requires application! For a multitude of reasons density is then used to calculate body density is then used to calculate density.
Air Fryer Whitebait, John Gray Gubler, Morgan Stanley Employee Holiday Schedule 2021, Black Funeral Homes Durham, Nc, Has Letitia Dean Lost Weight Recently, Articles A