Cross-Sectional Study on the Association Between Respiratory Muscle Strength and Dynapenic Abdominal Obesity in Community-Dwelling Older Adults

Abstract

Larissa do Nascimento Pereira,1 Maycon Sousa Pegorari,2– 4 Lislei Jorge Patrizzi,2,3 Isabel Aparecida Porcatti de Walsh,2,3 Caroline de Fátima Ribeiro Silva,1 Juliana de Souza da Silva,4 Areolino Pena Matos,1,4 Ana Carolina Pereira Nunes Pinto,1,5– 7 Daniela Gonçalves Ohara2 1Department of Biological and Health Sciences, Federal University of Amapá, Macapá, AP, Brazil; 2Department of Applied Physiotherapy, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil; 3Postgraduate Program in Physical Therapy, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil; 4Postgraduate Program in Health Sciences, Federal University of Amapá, Macapá, AP, Brazil; 5Iberoamerican Cochrane Centre - Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain; 6Cochrane Brazil, Center for Evidence-Based Health Studies and Health Technology Assessment, Sao Paulo, Brazil; 7Department of Medicine, Evidence-Based Health Post-Graduation Program, Federal University of São Paulo, Sao Paulo, BrazilCorrespondence: Maycon Sousa Pegorari, Department of Applied Physiotherapy, Federal University of Triângulo Mineiro, Boulevard Frei Paulino, n° 30, Abadia, Uberaba, Minas Gerais, 38025-180, Brazil, Email [email protected]; [email protected]: Impaired respiratory muscle strength has been associated with some geriatric syndromes. However, no studies have previously evaluated the relationship between respiratory muscle strength and dynapenic abdominal obesity. This study aimed to analyze whether there is an association between respiratory muscle strength and abdominal obesity, dynapenia and dynapenic abdominal obesity (DAO) in community-dwelling older adults.Patients and Methods: Cross-sectional study conducted with community-dwelling older adults (n=382 / 70.03 ± 7.3 years) from Macapá, Amapá, Brazil. Respiratory muscle strength was assessed by measuring maximal inspiratory and expiratory pressures (MIP and MEP, respectively), using an analog manovacuometry. DAO was defined as the combination of dynapenia (grip strength 102 cm for men and > 88 cm for women). We performed descriptive and inferential statistical analyses using the student’s t-test for independent and related samples and linear regression model.Results: Older adults with abdominal obesity, dynapenia, and DAO presented lower mean values (obtained and obtained versus predicted; except abdominal obesity versus MIP) for maximal respiratory pressures compared to individuals without these conditions. However, the adjusted analysis only indicated an association between MIP and the following conditions: dynapenia (MIP - β =− 0.171; p< 0.001), abdominal obesity (MIP - β=0.102; p=0.042), and DAO (MIP - β=− 0.101; p=0.028).Conclusion: Older adults with abdominal obesity, dynapenia, and DAO showed impaired maximal respiratory pressures. The results of the adjusted analysis indicate that inspiratory muscle strength may require greater attention by health professionals aiming at preventing respiratory complications and improving respiratory health care in older people with these conditions.Keywords: respiratory muscles, muscle strength, respiratory function tests, obesity, abdominal, aged

Keywords

• respiratory muscles. muscle strength. respiratory function tests. obesity. abdominal. aged