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The Use of the Incremental Shuttle Walk Test to Identify Instrumental Activity Daily Living Disability and to Predict Peak Oxygen Consumption in Older Adults

A Methodological Study

de Carvalho Bastone, Alessandra, PhD, PT; de Souza Vasconcelos, Karina Simone, PhD, PT; Lacerda, Ana Cristina Rodrigues, PhD, PT; Neves, Camila Danielle Cunha, MSc, PT; Mendonça, Vanessa Amaral, PhD, PT; Dias, João Marcos Domingues, PhD, PT; Dias, Rosângela Corrêa, PhD, PT

doi: 10.1097/TGR.0000000000000200
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Aerobic capacity is essential for physical function. The aims of this study were to identify the peak oxygen consumption (

O2 peak) and the incremental shuttle walk test (ISWT) distance associated with disability and to develop an equation to predict

O2 peak, based on the ISWT distance. Fifteen disabled and 13 nondisabled older adults performed the ISWT using a portable telemetric gas analyzer. The

O2 peak and the distance associated with disability were 15.8 mL/kg/min or less and 230 m or less, respectively. The coefficient of determination from the predictive model was 0.54. The ISWT might be considered to assess aerobic capacity in older adults.

Physical Therapy Department, Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM—Diamantina, Minas Gerais, Brazil (Dr Bastone); Postgraduate Program in Rehabilitation Sciences—Universidade Federal de Minas Gerais/UFMG—Belo Horizonte, Minas Gerais, Brazil (Drs Vasconcelos, Domingues Dias, and Corrêa Dias); and Multicenter Postgraduate Program in Physiological Sciences—Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM—Diamantina, Minas Gerais, Brazil (Drs Lacerda and Mendonça and Ms Neves).

Correspondence: Alessandra de Carvalho Bastone, PhD, PT, Faculdade de Ciências Biológicas e da Saúde, Departamento de Fisioterapia—Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM, Campus JK—Rodovia MGT 367—Km 583, No 5000—Alto da Jacuba, Diamantina, Minas Gerais, Brasil, CEP 39000-100 (

This work was supported by the Fundação de Amparo à Pesquisa do Estado de Minas Gerais—FAPEMIG as a grant to Alessandra de Carvalho Bastone during work on her doctoral degree.

The authors declare no conflicts of interest.

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