Dataset Information

Optimizing Training Response for Women in Cardiac Rehabilitation: A Randomized Clinical Trial.

ABSTRACT:

Importance

Despite lower baseline fitness levels, women in cardiac rehabilitation (CR) do not typically improve peak aerobic exercise capacity (defined as peak oxygen uptake [peak Vo2]) compared with men in CR.

Objective

To evaluate the effect of high-intensity interval training (HIIT) and intensive lower extremity resistance training (RT) compared with standard moderate intensity continuous training (MCT) on peak Vo2 among women in CR.

Design, setting, and participants

This randomized clinical trial conducted from July 2017 to February 2020 included women from a community-based cardiac rehabilitation program affiliated with a university hospital in Vermont. A total of 56 women (mean [SD] age, 65 [11] years; range 43-98 years) participating in CR enrolled in the study.

Interventions

MCT (70% to 85% of peak heart rate [HR]) with moderate intensive RT or HIIT (90% to 95% of peak HR) along with higher-intensity lower extremity RT 3 times per week over 12 weeks.

Main outcomes and measures

The primary outcome was the between-group difference in change in peak Vo2 (L/min) from baseline to 12 weeks.

Results

Peak Vo2 increased to a greater degree in the HIIT group (+23%) than in the control group (+7%) (mean [SD] increase, 0.3 [0.2] L/min vs 0.1 [0.2] L/min; P = .03). Similarly, the change in leg strength was greater in the HIIT-RT group compared with the control group (mean [SD] increase, 15.3 [0.3] kg vs 6.4 [1.1] kg; P = .004).

Conclusions and relevance

An exercise protocol combining HIIT and intensive lower extremity RT enhanced exercise training response for women in CR compared with standard CR exercise training. Women randomized to HIIT experienced significantly greater improvements in both peak Vo2 and leg strength during CR.

Trial registration

ClinicalTrials.gov Identifier: NCT03438968.

SUBMITTER: Khadanga S

PROVIDER: S-EPMC8613699 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature

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Publications

Optimizing Training Response for Women in Cardiac Rehabilitation: A Randomized Clinical Trial.

Khadanga Sherrie S Savage Patrick D PD Pecha Anton A Rengo Jason J Ades Philip A PA

JAMA cardiology 20220201 2

<h4>Importance</h4>Despite lower baseline fitness levels, women in cardiac rehabilitation (CR) do not typically improve peak aerobic exercise capacity (defined as peak oxygen uptake [peak Vo2]) compared with men in CR.<h4>Objective</h4>To evaluate the effect of high-intensity interval training (HIIT) and intensive lower extremity resistance training (RT) compared with standard moderate intensity continuous training (MCT) on peak Vo2 among women in CR.<h4>Design, setting, and participants</h4>Thi ...[more]

PMID: 34817540

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Project description:ImportanceGuidelines recommend that cardiac rehabilitation (CR) exercise training should not start until 6 weeks after sternotomy, although this is not evidence based. Limited data suggest that starting earlier is not detrimental, but clinical trials are needed.ObjectiveTo compare the effectiveness and safety of CR exercise training started either 2 weeks (early CR) or 6 weeks (usual-care CR) after sternotomy.Design, setting, and participantsThis was an assessor-blind, noninferiority, parallel-group, randomized clinical trial that conducted participant recruitment from June 12, 2017, to March 17, 2020. Participants were consecutive cardiac surgery sternotomy patients recruited from 2 outpatient National Health Service rehabilitation centers: University Hospital, Coventry, UK, and Hospital of St Cross, Rugby, UK.InterventionsParticipants were randomly assigned to 8 weeks of twice-weekly supervised CR exercise training starting either 2 weeks (early CR) or 6 weeks (usual-care CR) after sternotomy. Exercise training adhered to existing guidelines, including functional strength and cardiovascular components.Main outcomes and measuresOutcomes were assessed at baseline (inpatient after surgery), after CR (10 or 14 weeks after sternotomy), and 12 months after randomization. The primary outcome was the change in 6-minute walk test distance from baseline to after CR. Secondary outcomes included safety, functional fitness, and quality of life.ResultsA total of 158 participants (mean [SD] age, 63 [11.5] years, 133 male patients [84.2%]) were randomly assigned to study groups; 118 patients (usual-care CR, 61 [51.7%]; early CR, 57 [48.3%]) were included in the primary analysis. Early CR was not inferior to usual-care CR (noninferiority margin, 35 m); the mean change in 6-minute walk distance from baseline to after CR was 28 m greater in the early CR group (95% CI, -11 to 66; P = .16). Mean differences for secondary outcomes were not statistically significant, indicating noninferiority of early CR. There were 46 vs 58 adverse events and 14 vs 18 serious adverse events in usual-care CR and early CR, respectively. There was no difference between the groups in the likelihood of participants having an adverse or serious adverse event.Conclusions and relevanceStarting exercise training from 2 weeks after sternotomy was as effective as starting 6 weeks after sternotomy for improving 6-minute walk distance. With appropriate precautions, clinicians and CR professionals can consider starting exercise training as early as 2 weeks after sternotomy.Trial registrationClinicalTrials.gov Identifier: NCT03223558.

Project description:ImportanceWhile effective, cardiovascular rehabilitation (CR) as traditionally delivered is not well implemented in lower-resource settings.ObjectiveTo test the noninferiority of hybrid CR compared with traditional CR in terms of cardiovascular events.Design, setting, and participantsThis pragmatic, multicenter, parallel arm, open-label randomized clinical trial (the Hybrid Cardiac Rehabilitation Trial [HYCARET]) with blinded outcome assessment was conducted at 6 referral centers in Chile. Adults aged 18 years or older who had a cardiovascular event or procedure, no contraindications to exercise, and access to a mobile telephone were eligible and recruited between April 1, 2019, and March 15, 2020, with follow-up until July 29, 2021.InterventionsParticipants were randomized 1:1 in permuted blocks to the experimental arm, which received 10 center-based supervised exercise sessions plus counseling in 4 to 6 weeks and then were supported at home via telephone calls and text messages through weeks 8 to 12, or the control arm, which received the standard CR of 18 to 22 sessions with exercises and education in 8 to 12 weeks.Main outcomes and measuresThe primary outcome was cardiovascular events or mortality. Secondary outcomes were quality of life, return to work, and lifestyle behaviors measured with validated questionnaires; muscle strength and functional capacity, measured through physical tests; and program adherence and exercise-related adverse events, assessed using checklists.ResultsA total of 191 participants were included (mean [SD] age, 58.74 [9.80] years; 145 [75.92%] male); 93 were assigned to hybrid CR and 98 to standard CR. At 1 year, events had occurred in 5 unique participants in the hybrid CR group (5.38%) and 9 in the standard CR group (9.18%). In the intention-to-treat analysis, the hybrid CR group had 3.80% (95% CI, -11.13% to 3.52%) fewer cardiovascular events than the standard CR group, and relative risk was 0.59 (95% CI, 0.20-1.68) for the primary outcome. In the per-protocol analysis at different levels of adherence to the intervention, all 95% CIs crossed the noninferiority boundary (eg, 20% adherence: absolute risk difference, -0.35% [95% CI, -7.56% to 6.85%]; 80% adherence: absolute risk difference, 3.30% [95% CI, -3.70% to 10.31%]). No between-group differences were found for secondary outcomes except adherence to supervised CR sessions (79.14% [736 of 930 supervised sessions] in the hybrid CR group vs 61.46% [1201 of 1954 sessions] in the standard CR group).Conclusions and relevanceThe results suggest that a hybrid CR program is noninferior to standard center-based CR in a low-resource setting, primarily in terms of recurrent cardiovascular events and potentially in terms of intermediate outcomes. Hybrid CR may induce superior adherence to supervised exercise. Clinical factors and patient preferences should inform CR model allocation.Trial registrationClinicalTrials.gov Identifier: NCT03881150.

Project description:BackgroundThe adherence to cardiac rehabilitation is low. Social media has been used to improve motivation and cardiac rehabilitation completion, but the authors did not find Facebook interventions for these purposes in the literature.ObjectiveThe purpose of this study was to determine the feasibility of the Cardiac Rehabilitation Facebook Intervention (Chat) for affecting changes in exercise motivation and need satisfaction and adherence to cardiac rehabilitation.MethodsThe Behavioral Regulation in Exercise Questionnaire-3 and Psychological Need Satisfaction for Exercise were used to measure motivation and need satisfaction (competence, autonomy, and relatedness) before and after the Chat intervention. To support need satisfaction, the intervention included educational posts, supportive posts, and interaction with peers. The feasibility measures included recruitment, engagement, and acceptability. Groups were compared using analysis of variance and Kruskal-Wallis tests. Paired t tests were used to assess motivation and need satisfaction change, and Pearson or Spearman correlations were used for continuous variables.ResultsA total of 32 participants were lost to follow-up and 22 were included in the analysis. Higher motivation at intake (relative autonomy index 0.53, 95% CI 0.14-0.78; P=.01) and change in need satisfaction-autonomy (relative autonomy index 0.61, 95% CI 0.09-0.87; P=.02) were associated with more completed sessions. No between-group differences were found. Engagement included "likes" (n=210) and "hits" (n=157). For acceptability, mean scores on a 1 (not at all) to 5 (quite a bit) Likert scale for feeling supported and in touch with providers were 4.6 and 4.4, respectively.ConclusionsAcceptability of the Chat group was high; however, intervention feasibility could not be determined due to the small sample size. Those with greater motivation at intake completed more sessions, indicating its importance in cardiac rehabilitation completion. Despite challenges with recruitment and engagement, important lessons were learned.Trial registrationClinicalTrials.gov NCT02971813; https://clinicaltrials.gov/ct2/show/NCT02971813.International registered report identifier (irrid)RR2-10.2196/resprot.7554.

Project description:ImportanceHigh-intensity interval training (HIIT) is recognized as a potent stimulus for improving cardiorespiratory fitness (volume of oxygen consumption [VO2] peak) in patients with coronary artery disease (CAD). However, the feasibility, safety, and long-term effects of HIIT in this population are unclear.ObjectiveTo compare HIIT with moderate-intensity continuous training (MICT) for feasibility, safety, adherence, and efficacy of improving VO2 peak in patients with CAD.Design, setting, and participantsIn this single-center randomized clinical trial, participants underwent 4 weeks of supervised training in a private hospital cardiac rehabilitation program, with subsequent home-based training and follow-up over 12 months. A total of 96 participants with angiographically proven CAD aged 18 to 80 years were enrolled, and 93 participants were medically cleared for participation following a cardiopulmonary exercise test. Data were collected from May 2016 to December 2018, and data were analyzed from December 2018 to August 2019.InterventionsA 4 × 4-minute HIIT program or a 40-minute MICT program (usual care). Patients completed 3 sessions per week (2 supervised and 1 home-based session) for 4 weeks and 3 home-based sessions per week thereafter for 48 weeks.Main outcomes and measuresThe primary outcome was change in VO2 peak during the cardiopulmonary exercise test from baseline to 4 weeks. Further testing occurred at 3, 6, and 12 months. Secondary outcomes were feasibility, safety, adherence, cardiovascular risk factors, and quality of life.ResultsOf 93 randomized participants, 78 (84%) were male, the mean (SD) age was 65 (8) years, and 46 were randomized to HIIT and 47 to MICT. A total of 86 participants completed testing at 4 weeks for the primary outcome, including 43 in the HIIT group and 43 in the MICT group; 69 completed testing at 12 months for VO2 peak, including 32 in the HIIT group and 37 in the MICT group. After 4 weeks, HIIT improved VO2 peak by 10% compared with 4% in the MICT group (mean [SD] oxygen uptake: HIIT, 2.9 [3.4] mL/kg/min; MICT, 1.2 [3.4] mL/kg/min; P = .02). After 12 months, there were similar improvements from baseline between groups, with a 10% improvement in the HIIT group and a 7% improvement in the MICT group (mean [SD] oxygen uptake: HIIT, 2.9 [4.5] mL/kg/min; MICT, 1.8 [4.3] mL/kg/min; P = .30). Both groups had high feasibility scores and low rates of withdrawal due to serious adverse events (3 participants in the HIIT group and 1 participant in the MICT group). One event occurred following exercise (hypotension) in the HIIT group. Over 12 months, both home-based HIIT and MICT had low rates of adherence (HIIT, 18 of 34 [53%]; MICT, 15 of 37 [41%]; P = .35) compared with the supervised stage (HIIT, 39 of 44 [91%]; MICT, 39 of 43 [91%]; P > .99).Conclusions and relevanceIn this randomized clinical trial, a 4-week HIIT program improved VO2 peak compared with MICT in patients with CAD attending cardiac rehabilitation. However, improvements in VO2 peak at 12 months were similar for both groups. HIIT was feasible and safe, with similar adherence to MICT over 12-month follow-up. These findings support inclusion of HIIT in cardiac rehabilitation programs as an adjunct or alternative modality to moderate-intensity exercise.Trial registrationAustralian New Zealand Clinical Trials Registry Identifier: ACTRN12615001292561.

Dataset Information

Optimizing Training Response for Women in Cardiac Rehabilitation: A Randomized Clinical Trial.

Importance

Objective

Design, setting, and participants

Interventions

Main outcomes and measures

Results

Conclusions and relevance

Trial registration

Publications

Optimizing Training Response for Women in Cardiac Rehabilitation: A Randomized Clinical Trial.

Similar Datasets

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