scholarly journals Cardiorespiratory fitness in breast cancer survivors: a randomised controlled trial of home-based smartphone supported high intensity interval training

2021 ◽  
pp. bmjspcare-2021-003141
Author(s):  
Eisuke Ochi ◽  
Katsunori Tsuji ◽  
Tomomi Narisawa ◽  
Yoichi Shimizu ◽  
Aya Kuchiba ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Survivors ◽  
Breast Cancer Survivors ◽  
Early Stage ◽  
Controlled Trial ◽  
Interval Training ◽  
Control Group ◽  
Home Based ◽  
High Intensity Interval ◽  
Randomised Controlled

BackgroundA strategy for maintaining and/or improving cardiorespiratory fitness (CRF) in the growing population of cancer survivors is of major clinical importance, especially in the COVID-19 era. The effect of unsupervised high-intensity interval training (HIIT) on increasing CRF in breast cancer survivors is unknown.PurposeThe purpose of this study was to determine whether the newly developed habit-B programme, which involves home-based smartphone-supported HIIT using body weight exercises, improves CRF in early-stage breast cancer survivors.MethodsThis single-centre, 12-week, parallel-group, single-blind, randomised controlled trial involved 50 women with stage I–IIa breast cancer, aged 20–59 years, who had completed initial treatment except for hormone therapy. Participants were randomised to either the exercise or control group. The primary outcome was the 12-week change in peak oxygen uptake (V˙O2peak). Other outcomes included muscle strength, 6 min walk test, resting heart rate, physical activity, fatigue, safety and quality of life.ResultsThe change in V˙O2peak and leg strength increased significantly in the exercise group compared with the control group (p<0.01). Changes in other outcomes were not significantly different between the groups.ConclusionA home-based HIIT intervention can lead to improve CRF and muscle strength in early-stage breast cancer survivors.

scholarly journals Effect of home-based high-intensity interval training and behavioural modification using information and communication technology on cardiorespiratory fitness and exercise habits among sedentary breast cancer survivors: habit-B study protocol for a randomised controlled trial

BMJ Open ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. e030911 ◽  
Author(s):  
Katsunori Tsuji ◽  
Eisuke Ochi ◽  
Ryo Okubo ◽  
Yoichi Shimizu ◽  
Aya Kuchiba ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cardiorespiratory Fitness ◽  
Breast Cancer Survivors ◽  
Controlled Trial ◽  
Interval Training ◽  
Wearable Device ◽  
Treatment As Usual ◽  
Home Based ◽  
High Intensity Interval ◽  
Randomised Controlled

IntroductionMaintaining high levels of physical activity helps to maintain and improve physical health and quality of life, and plays a role in reducing adverse effects due to cancer treatments. Moreover, a greater degree of cardiorespiratory fitness is associated with reduced risk of all-cause mortality. However, there are no home-based programme for improving cardiorespiratory fitness using body weight exercises for breast cancer survivors. This study will assess the efficacy of the newly developed habit-B programme on maximum oxygen uptake compared with treatment as usual with wearable device. The effects of this programme on exercise habits, level of physical activity, physical fitness and subjective indices will also be investigated.Methods and analysisThis is a 12-week, parallel-group, single-blind, randomised controlled trial. Allocation will be managed by a central server using a computer-generated random allocation sequence provided by an independent data centre. Participants will be assigned to the habit-B programme (high-intensity interval training, exercise counselling + guidance, home-based exercise support using information and communication technology, and a wearable device) or treatment as usual with a wearable device. Subjects will be sedentary women aged 20–59 years who have received breast surgery in the past 2–13 months after the diagnosis of invasive breast cancer (stages I–IIa) and have never received chemotherapy except for hormone therapy. The primary endpoint is the change in peak oxygen uptake (VO2peak; mL/kg/min) between the groups after 12 weeks of intervention.Ethics and disseminationThe study protocol was approved by the Institutional Review Board of the National Cancer Center Japan on 28 February 2019 (ID: 2018-347). The findings will be disseminated through peer-reviewed publications and conference presentations.Trial registration numberUMIN000036400.

scholarly journals Exploration of High-Intensity Interval Training for Breast Cancer Survivors: Taking a Home-based Approach Toward New Normal

2020 ◽  
Author(s):  
Katsunori Tsuji ◽  
Yutaka J. Matsuoka ◽  
Eisuke Ochi
Keyword(s):  
Breast Cancer ◽  
Cancer Survivors ◽  
High Intensity ◽  
Breast Cancer Survivors ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Community Based ◽  
Eligibility Criteria ◽  
Home Based ◽  
High Intensity Interval

Abstract BackgroundTo review the methods and outcomes of high-intensity interval training (HIIT) interventions for breast cancer survivors, and to explore the feasibility of prescribing exercise for breast cancer survivors.MethodsA systematic search of electronic databases was conducted for studies published up to May 31, 2020. Eligibility criteria included randomized controlled trials of HIIT intervention in breast cancer survivors. Studies were grouped by whether the intervention was conducted during or after breast cancer treatment, and intervention methods and outcomes were reviewed within each group.Results Twenty-six studies were identified, and 13 satisfied the inclusion criteria. Intervention was conducted during treatment in 8 studies, and after treatment in 5. Intervention duration ranged from 3 to 16 weeks, with 2 or 3 sessions per week, for a total of 9 to 36 sessions. All interventions were supervised; 12 were lab-based, and 1 was community-based. One of most promising outcomes was improvement of cardiorespiratory fitness by HIIT.ConclusionThis review found that most studies on HIIT for breast cancer survivors investigated lab-based, supervised interventions. HIIT is a time-efficient method for increasing cardiovascular function in breast cancer survivors, but further research is necessary to determine its effects on other outcomes.

scholarly journals High-intensity interval training in breast cancer survivors: a systematic review

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Katsunori Tsuji ◽  
Yutaka J. Matsuoka ◽  
Eisuke Ochi
Keyword(s):  
Breast Cancer ◽  
Cancer Survivors ◽  
High Intensity ◽  
Breast Cancer Survivors ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Community Based ◽  
Eligibility Criteria ◽  
Home Based ◽  
High Intensity Interval

Abstract Background To review the settings and outcomes of high-intensity interval training (HIIT) interventions for breast cancer survivors, and to explore the feasibility of prescribing exercise for breast cancer survivors. Methods A systematic search of electronic databases was conducted for studies published up to May 31, 2020. Eligibility criteria included randomized controlled trials of HIIT intervention in breast cancer survivors. Studies were grouped by whether the intervention was conducted during or after breast cancer treatment, and intervention methods and outcomes were reviewed within each group. Results Twenty-six studies were identified, and 13 satisfied the inclusion criteria. Intervention was conducted during treatment in 8 studies, and after treatment in 5. Intervention duration ranged from 3 to 16 weeks, with 2 or 3 sessions per week, for a total of 9 to 36 sessions. All interventions were supervised; 12 were lab-based, and 1 was community-based. One of most promising outcomes was improvement of cardiorespiratory fitness by HIIT. Conclusion This review found that all studies on HIIT for breast cancer survivors investigated lab-based, supervised interventions, but not home-based or unsupervised. HIIT is a time-efficient method for increasing cardiovascular function in breast cancer survivors, but further research is necessary to determine its effects on other outcomes.

scholarly journals Breast cancer application protocol: a randomised controlled trial to evaluate a self-management app for breast cancer survivors

BMJ Open ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. e034655
Author(s):  
Andy S K Cheng ◽  
Xiangyu Liu ◽  
Peter H F Ng ◽  
Cindy T T Kwok ◽  
Yingchun Zeng ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Breast Cancer Survivors ◽  
Controlled Trial ◽  
Intervention Group ◽  
Readiness For Change ◽  
Self Management ◽  
Controlled Study ◽  
Control Group ◽  
Problem Solving Skills ◽  
Randomised Controlled

IntroductionThe eHealth technologies that are being designed for chronic disease constitute a global trend towards health assessment and self-management. However, most of these approaches tend to focus on a single symptom or problem rather than on the multiple problems that are characteristic of many of these chronic illnesses. The aim of this study is to examine the effectiveness of and adherence to a self-management application (app) that identifies multiple problem areas related to surviving breast cancer as the targeted chronic illness.Methods and analysisThis is a randomised controlled study. Eligible participants will be allocated randomly into either an intervention group or a control group at a 1:1 ratio. The intervention group will be assigned to the self-management app (‘Be-with-You’), while the control group will use a general health app (‘Sham’ app). The primary outcomes will include the differences between the two groups in their health literacy, problem-solving skills and self-management skills. The secondary outcomes will include group differences in self-efficacy, readiness for change and health-related quality of life. All of these outcomes will be measured at baseline and at 4 weeks and 12 weeks after intervention. In addition, usability of these two mobile apps will be measured at 4 weeks and 12 weeks after intervention. The planned sample size is 476.Ethics and disseminationThe Human Subjects Ethics Sub-committee of The Hong Kong Polytechnic University approved the study (HSEARS20190922001, 24 September 2019). Dissemination of findings will occur at the local, national and international levels.Trial registration numberChiCTR1900026244.

Effects of Mindfulness-Based Stress Reduction (MBSR) on Health Among Breast Cancer Survivors

2010 ◽  
Vol 33 (8) ◽  
pp. 996-1016 ◽  
Author(s):  
Yaowarat Matchim ◽  
Jane M. Armer ◽  
Bob R. Stewart
Keyword(s):  
Breast Cancer ◽  
Cancer Survivors ◽  
Stress Reduction ◽  
Breast Cancer Survivors ◽  
Early Stage ◽  
Intervention Group ◽  
Psychological Outcomes ◽  
Control Group ◽  
Control Group Design ◽  
Quasi Experimental

The purpose of this study was to examine the effects of a MBSR program on physiological and psychological outcomes among early-stage breast cancer survivors. A quasi-experimental, pre-and posttest control group design was selected. The intervention group received the MBSR intervention. The control group received no MBSR intervention. ANOVA and ANCOVA were used to analyze data. The intervention group demonstrated statistically significant improvement in physiological and psychological outcomes including reduced blood pressure, heart rate, and respiratory rate and increased mindfulness state at the level of p = .05 to p = .001. The effects of MBSR on reducing stress in this sample were statistically significant on the physiological outcome (morning cortisol) at the measurement after the intervention completion, but this effect was not sustained at 1-month follow-up. MBSR showed a trend toward improving psychological outcomes by reducing mood disturbance in this sample.

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