Field-Based Estimates of Muscle Quality Index Determine Timed-Up-and-Go Test Performance in Obese Older Women

Field-Based Estimates of Muscle Quality Index Determine Timed-Up-and-Go Test Performance in Obese Older Women

The muscle quality index (MQI) is associated with numerous health outcomes in adults; however, the effects of distinct MQI on functional capacity in obese older women have not yet been fully investigated. Thus, we investigated the contribution of different muscle quality indices on TUG performance p...

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Published in:Clinical interventions in aging Vol. 18; pp. 293 - 303
Main Authors: Neto, Ivo Vieira de Sousa, Diniz, Joyce de Sousa, Alves, Vicente Paulo, Ventura Oliveira, Alessandra Ribeiro, Barbosa, Monica Palermo de Souza, da Silva Prado, Carla Regina, Alencar, Jaqueline Alves, Vilaça E Silva, Karla Helena Coelho, Silva, Cristiane Rocha, Lissemerki Ferreira, Gleison Miguel, Garcia, Danielle, Grisa, Roberto A, Prestes, Jonato, Rodrigues Melo, Geiziane Leite, Burmann, Larissa Lauda, Gomes Giuliani, Fernanda Nelli, Beal, Fabiani Lage Rodrigues, Severiano, Andréa Paula, Nascimento, Dahan da Cunha
Format: Journal Article
Language:English
Published: New Zealand Dove Medical Press Limited 01-01-2023
Taylor & Francis Ltd
Dove
Dove Medical Press
Subjects:
Aged women
Aging
Body composition
Body fat
Body mass index
Complications and side effects
Fitness equipment
functional capacity
Geriatric assessment
Geriatrics
Health aspects
Laboratories
Medical examination
Methods
muscle mass
muscle quality
Muscle strength
Muscles
Obesity
Older people
Original Research
Questionnaires
Sarcopenia
Brazil
muscle mass
muscle quality
functional capacity
aging
obesity
sarcopenia
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Summary:The muscle quality index (MQI) is associated with numerous health outcomes in adults; however, the effects of distinct MQI on functional capacity in obese older women have not yet been fully investigated. Thus, we investigated the contribution of different muscle quality indices on TUG performance prediction in obese older women. We secondarily evaluated the association between MQI, aerobic capacity performance (Treadmill performance and 6-minute walk test), and obesity indices (BMI, body fat percentage, and neck, waist, and hip circumference). Participants included 64 obese older women (mean age 67.05 ± 5.46 years, body fat ≥ 35%). General anthropometric, health history, body composition, treadmill exercise, and functional test (Time up and go) measures were collected. A hydraulic dynamometer was used to assess muscle strength, and Dual Energy X-ray Absorptiometry (DXA) to identify body fat percentage. The field MQI was defined as the highest reading divided by the subject's body mass index (BMI), while the laboratory MQI was obtained by the ratio of grip strength to the entire arm muscle in kilograms measured by DXA. A hierarchical multiple regression was performed to predict TUG-test performance. An increase in field MQI of one unit is associated with a decrease of 2.59 seconds in the TUG test (β = -0.540; p = 0.004). There was no association between laboratory MQI and TUG performance (β = 0.067; p = 0.712). Furthermore, field MQI displays a positive correlation (p < 0.05) with aerobic capacity performance (6-minute walk test and peak O consumption) and a negative correlation (p < 0.05) with diverse obesity indices (neck and waist circumference, body fat, and BMI). MQI displayed an important prediction with TUG-test, a positive correlation with aerobic capacity, and a negative correlation with obesity indices.
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ISSN:1178-1998
1176-9092
1178-1998
DOI:10.2147/CIA.S399827