ABSTRACT
Objective
To investigate the association between arterial stiffness and functional capacity in individuals with chronic stroke and compare the arterial stiffness between individuals with better and poor functional capacity.
Design
Cross-sectional study.
Participants
Individuals after chronic stroke have their arterial stiffness index evaluated by augmentation index heart rate adjusted for 75 bpm (AIx@75), assessed by Mobil-O-Graph® device (IEM, Stolberg, Germany), in percent, on the paretic upper limb. Functional capacity was assessed with the Duke Activity Status Index (DASI) in metabolic equivalent (METS). The individuals were assigned into two groups: better (DASI ≥ 31.95) and poor (DASI < 31.95) functional capacity. Pearson’s correlation and t test were used for analysis.
Results
Twenty-eight individuals (arterial stiffness 23.8 ± 10% and functional capacity 29 ± 19 METS) were included. The association between arterial stiffness and functional capacity was negative and statistically significant, with moderate magnitude (r = −0.53, p < .001). Individuals who had better functional capacity have lower arterial stiffness indices (AIx@75 = 17.4% versus 27.4% in better and lower functional capacity, respectively) (p = .01).
Conclusion
Arterial stiffness of the paretic upper limb has a negative association with functional capacity.
Acknowledgments
This work was supported by the Fundação de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG) and Programa de Iniciação Científica - Faculdade Ciências Médicas de Minas Gerais (PROBIC).
Disclosure statement
The authors report no declarations of interest.