Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery
Background. Obesity has several effects on the mechanics of the rib cage that may impair the exercise performance of obese individuals and therefore impact the assessment of surgical risk. This study aimed to establish a reference value for the 6-minute walk distance (6 MWD) in obese Brazilian men i...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Obesity |
| Online Access: | http://dx.doi.org/10.1155/2021/9577412 |
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| author | Cesar Antonio Luchesa Thiago Thomaz Mafort Rafael Rodrigues da Silva Isabela Cristina Paro Fernanda Micheli de Souza Agnaldo José Lopes |
| author_facet | Cesar Antonio Luchesa Thiago Thomaz Mafort Rafael Rodrigues da Silva Isabela Cristina Paro Fernanda Micheli de Souza Agnaldo José Lopes |
| author_sort | Cesar Antonio Luchesa |
| collection | DOAJ |
| description | Background. Obesity has several effects on the mechanics of the rib cage that may impair the exercise performance of obese individuals and therefore impact the assessment of surgical risk. This study aimed to establish a reference value for the 6-minute walk distance (6 MWD) in obese Brazilian men in the preoperative period of bariatric surgery that considers the effect of lung function. Methods. This was a cross-sectional study in which 104 obese men underwent the six-minute walk test (6 MWT) before bariatric surgery. They also underwent the spirometry test and respiratory muscle strength measurement before the 6 MWT. Results. The 6 MWD was correlated with age (r = −0.388, p=0.0005), weight (r = −0.365, p=0.0007), height (r = 0.285, p=0.022), body mass index (BMI) (r = −0.543, p<0.0001), forced vital capacity (FVC) (r = 0.472, p<0.0001), peak expiratory flow (r = 0.253, p=0.031), and maximal inspiratory pressure (r = 0.313, p=0.017). In the stepwise forward regression analysis, BMI, FVC, and age were the only variables that independently predicted the 6 MWD and explained 40% of its variability. The reference equation proposed for obese Brazilian men is 6 MWD (m) = 570.5 − (3.984 × BMIkg/m2) + (1.093 × FVC%predicted) − (0.836 × ageyrs). Conclusion. In this sample of obese Brazilian men, lung function contributed to poor performance in the 6 MWT. In these individuals, BMI, FVC, and age were the variables that composed the reference equation for the 6 MWD. Thus, in several clinical settings, such as in the evaluation before bariatric surgery, pulmonary function data are important to determine the reference value for the 6 MWD. |
| format | Article |
| id | doaj-art-97cfdd628fbd40f9a300eeb169518e96 |
| institution | Kabale University |
| issn | 2090-0708 2090-0716 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Obesity |
| spelling | doaj-art-97cfdd628fbd40f9a300eeb169518e962025-02-03T05:47:39ZengWileyJournal of Obesity2090-07082090-07162021-01-01202110.1155/2021/95774129577412Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric SurgeryCesar Antonio Luchesa0Thiago Thomaz Mafort1Rafael Rodrigues da Silva2Isabela Cristina Paro3Fernanda Micheli de Souza4Agnaldo José Lopes5Rehabilitation Sciences Postgraduation Program, Augusto Motta University Centre (UNISUAM), RJ, BrazilMedical Sciences Post-Graduation Program, School of Medical Sciences, State University of Rio de Janeiro (UERJ), RJ, BrazilRehabilitation Center, University Center Fundação Assis Gurgacz (FAG), Cascavel, PR, BrazilRehabilitation Center, University Center Fundação Assis Gurgacz (FAG), Cascavel, PR, BrazilRehabilitation Center, University Center Fundação Assis Gurgacz (FAG), Cascavel, PR, BrazilRehabilitation Sciences Postgraduation Program, Augusto Motta University Centre (UNISUAM), RJ, BrazilBackground. Obesity has several effects on the mechanics of the rib cage that may impair the exercise performance of obese individuals and therefore impact the assessment of surgical risk. This study aimed to establish a reference value for the 6-minute walk distance (6 MWD) in obese Brazilian men in the preoperative period of bariatric surgery that considers the effect of lung function. Methods. This was a cross-sectional study in which 104 obese men underwent the six-minute walk test (6 MWT) before bariatric surgery. They also underwent the spirometry test and respiratory muscle strength measurement before the 6 MWT. Results. The 6 MWD was correlated with age (r = −0.388, p=0.0005), weight (r = −0.365, p=0.0007), height (r = 0.285, p=0.022), body mass index (BMI) (r = −0.543, p<0.0001), forced vital capacity (FVC) (r = 0.472, p<0.0001), peak expiratory flow (r = 0.253, p=0.031), and maximal inspiratory pressure (r = 0.313, p=0.017). In the stepwise forward regression analysis, BMI, FVC, and age were the only variables that independently predicted the 6 MWD and explained 40% of its variability. The reference equation proposed for obese Brazilian men is 6 MWD (m) = 570.5 − (3.984 × BMIkg/m2) + (1.093 × FVC%predicted) − (0.836 × ageyrs). Conclusion. In this sample of obese Brazilian men, lung function contributed to poor performance in the 6 MWT. In these individuals, BMI, FVC, and age were the variables that composed the reference equation for the 6 MWD. Thus, in several clinical settings, such as in the evaluation before bariatric surgery, pulmonary function data are important to determine the reference value for the 6 MWD.http://dx.doi.org/10.1155/2021/9577412 |
| spellingShingle | Cesar Antonio Luchesa Thiago Thomaz Mafort Rafael Rodrigues da Silva Isabela Cristina Paro Fernanda Micheli de Souza Agnaldo José Lopes Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery Journal of Obesity |
| title | Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery |
| title_full | Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery |
| title_fullStr | Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery |
| title_full_unstemmed | Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery |
| title_short | Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery |
| title_sort | reference value for the distance walked in the six minute walk test in obese brazilian men in the preoperative period of bariatric surgery |
| url | http://dx.doi.org/10.1155/2021/9577412 |
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