Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Geriatria e Gerontologia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-98232016000400577 |
Resumo: | Abstract Aim: To analyze the behavior of functional reserve percentage (%FR) by gender in functional elderly persons, considering speed and the physiological cost of gait. Methods: A total of 53 self-reliant elderly persons, 40 of whom were women (age 69.4±4.7 years old; BMI 31.2±4.3 kg/m2) and 13 of whom were men (age 70.8±7.2 years old; BMI 28.7±3.5 kg/m2) participated in an observational and cross-sectional study. Participants were requested to walk at comfortable (CG) and maximum gait (MG). Both modalities were performed on a 70-meter elliptical circuit over three minutes. Distance and working heart rate were recorded for the corresponding calculation of average gait speed (AGS), physiological cost index (PCI) and used working heart rate percentage (% uWHR). With this information the FR% was determined by the percentage ratio with AGS, PCI and %uWHR under comfortable versus maximum demand walk conditions. Results: The association between %FR and AGS was significantly higher in males (p=0.017), reaching values of +-20% in most subjects. The physiological %FR for PCI was ≈30% in both men and women (p=0.156), while for % uWHR was ≈40% in females and ≈45% in males (p=0.131). Conclusion: AGS is a critical threshold functionality indicator to determine FR in functionally independent Chilean elderly persons. |
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Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological costActivities of Daily LivingPhysical FitnessGaitGender CharacteristicsAgingAbstract Aim: To analyze the behavior of functional reserve percentage (%FR) by gender in functional elderly persons, considering speed and the physiological cost of gait. Methods: A total of 53 self-reliant elderly persons, 40 of whom were women (age 69.4±4.7 years old; BMI 31.2±4.3 kg/m2) and 13 of whom were men (age 70.8±7.2 years old; BMI 28.7±3.5 kg/m2) participated in an observational and cross-sectional study. Participants were requested to walk at comfortable (CG) and maximum gait (MG). Both modalities were performed on a 70-meter elliptical circuit over three minutes. Distance and working heart rate were recorded for the corresponding calculation of average gait speed (AGS), physiological cost index (PCI) and used working heart rate percentage (% uWHR). With this information the FR% was determined by the percentage ratio with AGS, PCI and %uWHR under comfortable versus maximum demand walk conditions. Results: The association between %FR and AGS was significantly higher in males (p=0.017), reaching values of +-20% in most subjects. The physiological %FR for PCI was ≈30% in both men and women (p=0.156), while for % uWHR was ≈40% in females and ≈45% in males (p=0.131). Conclusion: AGS is a critical threshold functionality indicator to determine FR in functionally independent Chilean elderly persons.Universidade do Estado do Rio Janeiro2016-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-98232016000400577Revista Brasileira de Geriatria e Gerontologia v.19 n.4 2016reponame:Revista Brasileira de Geriatria e Gerontologiainstname:Universidade do Estado do Rio de Janeiro (UERJ)instacron:UFRJ10.1590/1809-98232016019.150136info:eu-repo/semantics/openAccessGonzález,Paul MedinaCofré,Rodrigo MuñozCabello,Máximo Escobareng2016-09-13T00:00:00Zoai:scielo:S1809-98232016000400577Revistahttp://revista.unati.uerj.br/scielo.php?script=sci_serial&pid=1809-9823&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||revistabgg@gmail.com1981-22561809-9823opendoar:2016-09-13T00:00Revista Brasileira de Geriatria e Gerontologia - Universidade do Estado do Rio de Janeiro (UERJ)false |
dc.title.none.fl_str_mv |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost |
title |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost |
spellingShingle |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost González,Paul Medina Activities of Daily Living Physical Fitness Gait Gender Characteristics Aging |
title_short |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost |
title_full |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost |
title_fullStr |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost |
title_full_unstemmed |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost |
title_sort |
Functional reserve in functionally independent elderly persons: a calculation of gait speed and physiological cost |
author |
González,Paul Medina |
author_facet |
González,Paul Medina Cofré,Rodrigo Muñoz Cabello,Máximo Escobar |
author_role |
author |
author2 |
Cofré,Rodrigo Muñoz Cabello,Máximo Escobar |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
González,Paul Medina Cofré,Rodrigo Muñoz Cabello,Máximo Escobar |
dc.subject.por.fl_str_mv |
Activities of Daily Living Physical Fitness Gait Gender Characteristics Aging |
topic |
Activities of Daily Living Physical Fitness Gait Gender Characteristics Aging |
description |
Abstract Aim: To analyze the behavior of functional reserve percentage (%FR) by gender in functional elderly persons, considering speed and the physiological cost of gait. Methods: A total of 53 self-reliant elderly persons, 40 of whom were women (age 69.4±4.7 years old; BMI 31.2±4.3 kg/m2) and 13 of whom were men (age 70.8±7.2 years old; BMI 28.7±3.5 kg/m2) participated in an observational and cross-sectional study. Participants were requested to walk at comfortable (CG) and maximum gait (MG). Both modalities were performed on a 70-meter elliptical circuit over three minutes. Distance and working heart rate were recorded for the corresponding calculation of average gait speed (AGS), physiological cost index (PCI) and used working heart rate percentage (% uWHR). With this information the FR% was determined by the percentage ratio with AGS, PCI and %uWHR under comfortable versus maximum demand walk conditions. Results: The association between %FR and AGS was significantly higher in males (p=0.017), reaching values of +-20% in most subjects. The physiological %FR for PCI was ≈30% in both men and women (p=0.156), while for % uWHR was ≈40% in females and ≈45% in males (p=0.131). Conclusion: AGS is a critical threshold functionality indicator to determine FR in functionally independent Chilean elderly persons. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-98232016000400577 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-98232016000400577 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1809-98232016019.150136 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade do Estado do Rio Janeiro |
publisher.none.fl_str_mv |
Universidade do Estado do Rio Janeiro |
dc.source.none.fl_str_mv |
Revista Brasileira de Geriatria e Gerontologia v.19 n.4 2016 reponame:Revista Brasileira de Geriatria e Gerontologia instname:Universidade do Estado do Rio de Janeiro (UERJ) instacron:UFRJ |
instname_str |
Universidade do Estado do Rio de Janeiro (UERJ) |
instacron_str |
UFRJ |
institution |
UFRJ |
reponame_str |
Revista Brasileira de Geriatria e Gerontologia |
collection |
Revista Brasileira de Geriatria e Gerontologia |
repository.name.fl_str_mv |
Revista Brasileira de Geriatria e Gerontologia - Universidade do Estado do Rio de Janeiro (UERJ) |
repository.mail.fl_str_mv |
||revistabgg@gmail.com |
_version_ |
1750128435878952960 |