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Review
. 2024 Sep 17;13(18):5498.
doi: 10.3390/jcm13185498.

High-Intensity Exercise Training Impact on Cardiorespiratory Fitness, Gait Ability, and Balance in Stroke Survivors: A Systematic Review and Meta-Analysis

Affiliations
Review

High-Intensity Exercise Training Impact on Cardiorespiratory Fitness, Gait Ability, and Balance in Stroke Survivors: A Systematic Review and Meta-Analysis

Alessio Baricich et al. J Clin Med. .

Abstract

Stroke survivors commonly face challenges such as reduced physical activity and cardiorespiratory fitness (CRF) as well as balance and gait impairments, exacerbating their disability. While high-intensity exercise interventions have demonstrated some potential, their effects on these items remain uncertain. Therefore, our study aimed to investigate the impact of high-intensity training protocols on CRF, gait ability, and balance in stroke survivor populations. Two independent investigators systematically searched five databases for relevant RCTs following the PICO model. Through a systematic review of 25 RCTs published up to 31 May 2023, including adult first-stroke survivors, comparing high-intensity exercise training versus low-to-mild or no exercises, we evaluated outcomes such as the Six-Minute Walking Test (6 MWT), peak oxygen uptake (VO2peak), Ten-Meter Walk Test (10 MWT), Berg Balance Scale (BBS), and Timed Up and Go test (TUG). The protocol was registered in PROSPERO (registration number CRD42023456773). Meta-analyses indicated significant enhancements in CRF, as measured by 6 MWT and VO2peak, following high-intensity exercise interventions. However, no significant differences were observed in BBS, 10 MWT, and TUG. Our findings underscore the potential of high-intensity exercise interventions in ameliorating CRF among stroke survivors, although further research involving standardized protocols and long-term follow-ups is imperative to optimize rehabilitation outcomes.

Keywords: cardio-respiratory fitness; high-intensity exercise; high-intensity training; meta-analysis; rehabilitation; stroke.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
PRISMA 2020 flow diagram for new systematic reviews.
Figure 2
Figure 2
Risk of bias assessment [51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75].
Figure 3
Figure 3
The 6 MWT forest plot [53,55,56,57,58,59,62,63,64,67,68,69,70,71,72,73,74,75].
Figure 4
Figure 4
The 6 MWT funnel plot.
Figure 5
Figure 5
VO2peak forest plot [52,53,54,56,57,60,61,62,63,65,66,67,69,70,71,72,73,74,75].
Figure 6
Figure 6
VO2peak funnel plot.
Figure 7
Figure 7
The 10 MWT forest plot [51,52,53,55,56,62,64,69,70,72,73].
Figure 8
Figure 8
The 10 MWT funnel plot.
Figure 9
Figure 9
BBS forest plot [51,55,56,58,63,64].
Figure 10
Figure 10
BBS funnel plot.
Figure 11
Figure 11
TUG forest plot [51,55,70].

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