Dataset Information

Association Between 6-Minute Walk Test Distance and Objective Variables of Functional Capacity After Exercise Training in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Randomized Exercise Trial.

ABSTRACT: Objective:To evaluate the change in the 6-minute walk test (6-MWT) distance relative to changes in key functional capacity measures after 16 weeks of exercise training in older patients (?65y) who have heart failure with preserved ejection fraction (HFpEF).

Design:Prospective, randomized, single-blinded (by researchers to patient group) comparison of 2 groups of HFpEF patients.

Setting:Hospital and clinic records; ambulatory outpatients.

Participants:Participants (N=47) randomly assigned to an attention control (AC) (n=24) or exercise training (ET) (n=23) group.

Intervention:The ET group performed cycling and walking at 50% to 70% of peak oxygen uptake (V?o₂peak) intensity (3d/wk, 60min each session).

Main outcome measures:V?o₂peak, ventilatory threshold (VT), and 6-MWT distance were measured at baseline and after the 16-week study period.

Results:At follow-up, the 6-MWT distance was higher than at the baseline in both the ET (11%, P=.005) and AC (9%, P=.004) groups. In contrast, V?o₂peak and VT values increased in the ET group (19% and 11%, respectively; P=.001), but decreased in the AC group at follow-up (2% and 0%, respectively). The change in V?o₂peak versus 6-MWT distance after training was also not significantly correlated in the AC group (r=.01, P=.95) or in the ET group (r=.13, P=.57). The change in 6-MWT distance and VT (an objective submaximal exercise measure) was also not significantly correlated in the AC group (r=.08, P=.74) or in the ET group (r=.16, P=.50).

Conclusions:The results of this study challenge the validity of using the 6-MWT as a serial measure of exercise tolerance in elderly HFpEF patients and suggest that submaximal and peak exercise should be determined objectively by VT and V?o₂peak in this patient population.

SUBMITTER: Maldonado-Martin S

PROVIDER: S-EPMC7707852 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Publications

Association Between 6-Minute Walk Test Distance and Objective Variables of Functional Capacity After Exercise Training in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Randomized Exercise Trial.

Maldonado-Martín Sara S Brubaker Peter H PH Eggebeen Joel J Stewart Kathryn P KP Kitzman Dalane W DW

Archives of physical medicine and rehabilitation 20160928 3

<h4>Objective</h4>To evaluate the change in the 6-minute walk test (6-MWT) distance relative to changes in key functional capacity measures after 16 weeks of exercise training in older patients (≥65y) who have heart failure with preserved ejection fraction (HFpEF).<h4>Design</h4>Prospective, randomized, single-blinded (by researchers to patient group) comparison of 2 groups of HFpEF patients.<h4>Setting</h4>Hospital and clinic records; ambulatory outpatients.<h4>Participants</h4>Participants (N= ...[more]

PMID: 27693420

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Dataset Information

Association Between 6-Minute Walk Test Distance and Objective Variables of Functional Capacity After Exercise Training in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Randomized Exercise Trial.

Publications

Association Between 6-Minute Walk Test Distance and Objective Variables of Functional Capacity After Exercise Training in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Randomized Exercise Trial.

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