scholarly journals Repeatability and intra-rater reproducibility of a digitalized test of body image perception

Author(s):  
Emanuelle Francine Detogni Schmit ◽  
Ana Paula Rodrigues ◽  
Catiane Souza ◽  
Cláudia Tarragô Candotti ◽  
Jefferson Fagundes Loss

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p214 A body schema is a cortical representation of the spatial relations of body parts. It can be evaluated using the Image Marking Procedure (IMP). However, that instrument lacks information regarding its reliability and a standardized set of procedures. The aim of this study was to test the repeatability and intra-rater reproducibility of an adapted IMP. Methods: It consisted of two steps: (1) adaptation of the instrument; (2) verification of its reliability. Sixty-five young adult women were evaluated on two different days by a single rater, with a one-week interval between evaluations. Three consecutive measurements were performed on each day. Regarding repeatability, for all the variables (coordinates, distances and area), the ICC scores were classified as excellent, with low SEM (<4.5cm) and MDC (<8.5cm) values. Regarding intra-rater reproducibility, only the variables area and distance between the trochanters presented ICC> 0.6. The adapted IMP needs to be conducted only once. Regarding reproducibility, the variables apt for use are the area within the points and the distance between the trochanters. In contrast to the original IMP test, in this adapted version we do not recommend the use of the distances between the shoulders, the hip/waist or the top of the head in relation to the ground.

2006 ◽  
Vol 66 (6) ◽  
pp. 277-284 ◽  
Author(s):  
Katrien Lagrou ◽  
Christelle Froidecoeur ◽  
Francisca Verlinde ◽  
Margaretha Craen ◽  
Jean De Schepper ◽  
...  

2016 ◽  
Vol 9 (1) ◽  
pp. 187-187
Author(s):  
V. Verrastro ◽  
◽  
L. Fontanesi ◽  
I. Petruccelli ◽  
P. Diotaiuti ◽  
...  

Objective: The present research aims to identify the relation between at risk on-line behaviour (as sexting), self-esteem and the influence of media on bodyimage. According to the literature, our hypothesis suggests that on line behavior is influenced by self-esteem and body-image perception. Design and Method: 500 female participants (range 14-25) filled out self-report questionnaires about socio-anagraphical information, health and sexual behaviour (a.e. BMI, contraception, sexual experiences). Italian versions of Sexting Behaviour Scale, Sociocultural Attitudes Towards Appearance Questionnaire-3 and Multidimensional Self Concept Scale, Cyberbulliyng Questionnaire were administered too. Results: Our results suggest that there are several differences between female adolescents and young adult women, especially for what concern sexual health and body image perception. Higher scores in the Sexting Behaviour Scale were associated with higher scores in the SATAQ subscales concerning internalization, suggesting that they perceive their body as not in shape as they want it to be. Moreover, we found that having a strong self-esteem was a protective factor from the pressure of TV and Magazines. Conclusions: Our results highlighted the relation between on line and offline sexual health, self-esteem and the influence of media on self-perception. Adolescents should be considered at high risk for development of psychological and health problem related to on line behaviour. Therefore it is extremely important for prevention to focus on intervention in schools to enhance self-efficacy in girls and young women, and to develop specific programs to show the risk of the use of internet.


2019 ◽  
Author(s):  
Christina Ralph-Nearman ◽  
Armen C Arevian ◽  
Maria Puhl ◽  
Rajay Kumar ◽  
Diane Villaroman ◽  
...  

BACKGROUND Distorted perception of one’s body and appearance, in general, is a core feature of several psychiatric disorders including anorexia nervosa and body dysmorphic disorder and is operative to varying degrees in nonclinical populations. Yet, body image perception is challenging to assess, given its subjective nature and variety of manifestations. The currently available methods have several limitations including restricted ability to assess perceptions of specific body areas. To address these limitations, we created Somatomap, a mobile tool that enables individuals to visually represent their perception of body-part sizes and shapes as well as areas of body concerns and record the emotional valence of concerns. OBJECTIVE This study aimed to develop and pilot test the feasibility of a novel mobile tool for assessing 2D and 3D body image perception. METHODS We developed a mobile 2D tool consisting of a manikin figure on which participants outline areas of body concern and indicate the nature, intensity, and emotional valence of the concern. We also developed a mobile 3D tool consisting of an avatar on which participants select individual body parts and use sliders to manipulate their size and shape. The tool was pilot tested on 103 women: 65 professional fashion models, a group disproportionately exposed to their own visual appearance, and 38 nonmodels from the general population. Acceptability was assessed via a usability rating scale. To identify areas of body concern in 2D, topographical body maps were created by combining assessments across individuals. Statistical body maps of group differences in body concern were subsequently calculated using the formula for proportional z-score. To identify areas of body concern in 3D, participants’ subjective estimates from the 3D avatar were compared to corresponding measurements of their actual body parts. Discrepancy scores were calculated based on the difference between the perceived and actual body parts and evaluated using multivariate analysis of covariance. RESULTS Statistical body maps revealed different areas of body concern between models (more frequently about thighs and buttocks) and nonmodels (more frequently about abdomen/waist). Models were more accurate at estimating their overall body size, whereas nonmodels tended to underestimate the size of individual body parts, showing greater discrepancy scores for bust, biceps, waist, hips, and calves but not shoulders and thighs. Models and nonmodels reported high ease-of-use scores (8.4/10 and 8.5/10, respectively), and the resulting 3D avatar closely resembled their actual body (72.7% and 75.2%, respectively). CONCLUSIONS These pilot results suggest that Somatomap is feasible to use and offers new opportunities for assessment of body image perception in mobile settings. Although further testing is needed to determine the applicability of this approach to other populations, Somatomap provides unique insight into how humans perceive and represent the visual characteristics of their body.


Body Image ◽  
2010 ◽  
Vol 7 (2) ◽  
pp. 106-116 ◽  
Author(s):  
Nichole L. Wood-Barcalow ◽  
Tracy L. Tylka ◽  
Casey L. Augustus-Horvath

10.2196/14115 ◽  
2019 ◽  
Vol 6 (10) ◽  
pp. e14115 ◽  
Author(s):  
Christina Ralph-Nearman ◽  
Armen C Arevian ◽  
Maria Puhl ◽  
Rajay Kumar ◽  
Diane Villaroman ◽  
...  

Background Distorted perception of one’s body and appearance, in general, is a core feature of several psychiatric disorders including anorexia nervosa and body dysmorphic disorder and is operative to varying degrees in nonclinical populations. Yet, body image perception is challenging to assess, given its subjective nature and variety of manifestations. The currently available methods have several limitations including restricted ability to assess perceptions of specific body areas. To address these limitations, we created Somatomap, a mobile tool that enables individuals to visually represent their perception of body-part sizes and shapes as well as areas of body concerns and record the emotional valence of concerns. Objective This study aimed to develop and pilot test the feasibility of a novel mobile tool for assessing 2D and 3D body image perception. Methods We developed a mobile 2D tool consisting of a manikin figure on which participants outline areas of body concern and indicate the nature, intensity, and emotional valence of the concern. We also developed a mobile 3D tool consisting of an avatar on which participants select individual body parts and use sliders to manipulate their size and shape. The tool was pilot tested on 103 women: 65 professional fashion models, a group disproportionately exposed to their own visual appearance, and 38 nonmodels from the general population. Acceptability was assessed via a usability rating scale. To identify areas of body concern in 2D, topographical body maps were created by combining assessments across individuals. Statistical body maps of group differences in body concern were subsequently calculated using the formula for proportional z-score. To identify areas of body concern in 3D, participants’ subjective estimates from the 3D avatar were compared to corresponding measurements of their actual body parts. Discrepancy scores were calculated based on the difference between the perceived and actual body parts and evaluated using multivariate analysis of covariance. Results Statistical body maps revealed different areas of body concern between models (more frequently about thighs and buttocks) and nonmodels (more frequently about abdomen/waist). Models were more accurate at estimating their overall body size, whereas nonmodels tended to underestimate the size of individual body parts, showing greater discrepancy scores for bust, biceps, waist, hips, and calves but not shoulders and thighs. Models and nonmodels reported high ease-of-use scores (8.4/10 and 8.5/10, respectively), and the resulting 3D avatar closely resembled their actual body (72.7% and 75.2%, respectively). Conclusions These pilot results suggest that Somatomap is feasible to use and offers new opportunities for assessment of body image perception in mobile settings. Although further testing is needed to determine the applicability of this approach to other populations, Somatomap provides unique insight into how humans perceive and represent the visual characteristics of their body.


First Monday ◽  
2016 ◽  
Author(s):  
Charles Wagner ◽  
Ester Aguirre ◽  
Erin M. Sumner

This study observed the relations between actual body size, body dissatisfaction, frequency of selfies taken, and number of Instagram selfies posted. Results indicated that actual body size was positively related to body dissatisfaction, and negatively related to the number of selfies taken. Results also revealed a positive relationship between body dissatisfaction and selfies taken. Conversely, no correlations were detected between the frequency of selfies posted to Instagram and either actual body size or body image dissatisfaction.


2017 ◽  
Vol 48 (12) ◽  
pp. 2034-2044 ◽  
Author(s):  
Simon M. Wilksch ◽  
Anne O'Shea ◽  
C. Barr Taylor ◽  
Denise Wilfley ◽  
Corinna Jacobi ◽  
...  

AbstractBackgroundDisordered eating (DE) is a widespread, serious problem. Efficacious prevention programs that can be delivered at-scale are needed.MethodsA pragmatic randomized controlled trial of two online programs was conducted. Participants were young-adult women from Australia and New Zealand seeking to improve their body image. Media Smart-Targeted (MS-T) and Student Bodies (SB) were both 9-module interventions released weekly, whilst control participants received positive body image information. Primary [Eating Disorder Examination–Questionnaire (EDE-Q) Global], secondary (DE risk factors) and tertiary (DE) outcome measures were completed at baseline, post-program, 6- and 12-month follow-up.ResultsBaseline was completed by 608 women (M age = 20.71 years); 33 were excluded leaving 575 randomized to: MS-T (N = 191); SB (N = 190) or control (N = 194). Only 66% of those randomized to MS-T or SB accessed the intervention and were included in analyses with controls; 78% of this sample completed measures subsequent to baseline. Primary intent-to-treat (ITT) analyses revealed no differences between groups, while measure completer analyses found MS-T had significantly lower EDE-Q Global than controls at 12-month follow-up. Secondary ITT analyses found MS-T participants reported significantly higher quality of life–mental relative to both SB and controls (6-month follow-up), while MS-T and controls had lower clinical impairment relative to SB (post-program). Amongst measure completers, MS-T scored significantly lower than controls and SB on 5 variables. Of those with baseline DE, MS-T participants were significantly less likely than controls to have DE at 12-month follow-up.ConclusionsGiven both programs were not therapist-moderated, MS-T has potential to achieve reductions in DE risk at low implementation costs.


2020 ◽  
Author(s):  
Noelia González-Gálvez ◽  
Raquel Vaquero-Cristóbal ◽  
Pedro Ángel López-Miñarro ◽  
Fernando Alacid ◽  
Francisco Esparza-Ros

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