Perceived fatigability and metabolic and energetic responses to 6-minute walk test in older women

Barbosa, Juliana dos Santos; Bruno, Selma S.; Cruz, Novalyn; Oliveira, Juliana S; Ruaro, João Afonso; Guerra, Ricardo Oliveira

doi:10.1016/j.physio.2015.08.008

Cited by 24 publications

(17 citation statements)

References 36 publications

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“…Aerobic fitness has been described both as a determinant and as an outcome of physical activity [18]. Aerobic fitness can determine physical activity; subjects with a low aerobic capacity are more prone to fatigue [19, 20] and their endurance is compromised [21]. Increased fatigue reported in unfit individuals might discourage them from being physical active, especially later in the day.…”

Section: Introductionmentioning

confidence: 99%

Diurnal Patterns of Physical Activity in Relation to Activity Induced Energy Expenditure in 52 to 83 Years-Old Adults

Valenti

Bonomi

2016

PLoS ONE

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BackgroundAgeing is associated with a declining physical activity level (PAL) and changes in the diurnal activity pattern. Changes in the activity pattern might help explaining the age-associated reduction of physical activity.ObjectiveThe aims were to investigate diurnal activity patterns within groups of older adults classified by PAL, to investigate diurnal activity patterns within age-groups and to investigate the association between the drop in activity and aerobic fitness.MethodsThirty-one healthy subjects aged between 52 and 83y were recruited for the study. Subjects were divided in sedentary (PAL<1.75), moderately active (1.75

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Section: Introductionmentioning

confidence: 99%

Diurnal Patterns of Physical Activity in Relation to Activity Induced Energy Expenditure in 52 to 83 Years-Old Adults

Valenti

Bonomi

2016

PLoS ONE

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“…In six studies, performance fatigability was measured as performance deterioration by quantifying decreasing speed of activity 3,15–17 or prolonged reaction time. 6,14…”

Section: Resultsmentioning

confidence: 99%

“…Five studies reported significant associations between their perceived fatigability measure (self-reported fatigue following a defined performance test) and performance fatigability measure (performance deterioration). 3,6,14,15,17 Examination of the studies revealed that perceived symptoms, tiredness, 3,17 perceived fatigue severity, 17 musculoskeletal pain, 9,18 and depressive symptoms 9 were significantly related to fatigability. With respect to biomarkers, increases in cytokine interleukin 6 (IL-6) 14 and free thyroxine (FT-4) 19 were significantly related to high fatigability.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of fatigability measurement: Integrative review

et al. 2018

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Fatigability is defined as the extent of fatigue in the context of activity and differs from the term used in exercise literature to describe muscle endurance characteristics. Many fatigability measures are available, but no studies have thoroughly evaluated them for adequate incorporation of fatigability concepts. This integrative review provides an overall assessment of existing fatigability measures and then evaluates each in depth. A database search and hand search produced 14 studies for review. Fatigability measurement took three forms: self-reported fatigability, perceived fatigability (self-reported fatigue following a defined performance test), and performance fatigability (performance deterioration). Of 17 measures identified, validity and/or reliability was reported for six (35.3%), and no measure was used in more than one study. Fatigability measures have been correlated with clinical measures, indicating that fatigability should be measured during routine clinical health screening. Refinement of measures and additional fatigability data collection will improve understanding and treatment of fatigue.

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“…Most measures of fatigability evaluate fatigue or change in self-reported fatigue (subjective component) in response to a defined objectively measured activity, such as the 6-minute walk. 23,24 Self-report measures of fatigability have also been published. 41 …”

Section: Discussionmentioning

confidence: 99%

“…While conceptual and operational definitions of the term are still evolving, most studies operationalize fatigability to include a subjective component (fatigue or change in perceived fatigue) in the context of performance on a standardized and/or objectively measured task. 23,24 As a result of this operational definition, fatigability testing most frequently occurs in a clinical and/or laboratory environment. Findings from these types of measures, while important, do not provide information regarding the interplay between fatigue and physical activity in a natural environment.…”

Section: Introductionmentioning

confidence: 99%

Real-time Fatigue and Free-Living Physical Activity in Hematopoietic Stem Cell Transplantation Cancer Survivors and Healthy Controls

et al. 2017

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Background Fatigue and physical inactivity, critical problems facing cancer survivors, impact overall health and functioning. Our group designed a novel methodology to evaluate the temporal, dynamic patterns in real world settings. Objective Using real-time technology, describe and compare the temporal, dynamic relationship between real-time fatigue and free-living in cancer survivors who were treated with hematopoietic stem cell transplantation (n = 25) and age- and gender-matched healthy controls (n = 25). Methods Subjects wore wrist actigraphs on their non-dominant hand to assess free-living physical activity, measured in one-minute epochs, over seven days. Subjects entered real-time fatigue assessments directly into the subjective event marker of the actigraph five times per day. Running averages of mean one-minute activity counts 30, 60, and 120 minutes before and after each real-time fatigue score were correlated with real-time fatigue using generalized estimating equations, Results A strong inverse relationship exists between real-time fatigue and subsequent free-living physical activity. This inverse relationship suggests that increasing real-time fatigue limits subsequent physical activity (B range= −.002 to −.004; p<.001). No significant differences in the dynamic patterns of real-time fatigue and free-living physical activity were found between groups. Conclusions To our knowledge, this is the first study to document the temporal and potentially causal relationship between real-time fatigue and free-living physical activity in real-world setting. These findings suggest that fatigue drives the subsequent physical activity and the relationship may not be bi-directional. Implications for Practice Understanding the temporal, dynamic relationship may have important health implications for developing interventions to address fatigue in cancer survivors.

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Perceived fatigability and metabolic and energetic responses to 6-minute walk test in older women

Cited by 24 publications

References 36 publications

Diurnal Patterns of Physical Activity in Relation to Activity Induced Energy Expenditure in 52 to 83 Years-Old Adults

Diurnal Patterns of Physical Activity in Relation to Activity Induced Energy Expenditure in 52 to 83 Years-Old Adults

Evaluation of fatigability measurement: Integrative review

Real-time Fatigue and Free-Living Physical Activity in Hematopoietic Stem Cell Transplantation Cancer Survivors and Healthy Controls

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