scholarly journals The Effects of Exercise Duration and Intensity on Breast Cancer-Related DNA Methylation: A Randomized Controlled Trial

Cancers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 4128
Author(s):  
Arielle S. Gillman ◽  
Timothy Helmuth ◽  
Claire E. Koljack ◽  
Kent E. Hutchison ◽  
Wendy M. Kohrt ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Dna Methylation ◽  
Randomized Controlled Trial ◽  
Aerobic Exercise ◽  
Exercise Intervention ◽  
Controlled Trial ◽  
Post Intervention ◽  
Randomized Controlled ◽  
Supervised Exercise

Emerging research suggests that one mechanism through which physical activity may decrease cancer risk is through its influence on the methylation of genes associated with cancer. The purpose of the current study was to prospectively test, using a rigorous experimental design, whether aerobic exercise affects DNA methylation in genes associated with breast cancer, as well as whether quantity of exercise completed affects change in DNA methylation in a dose–response manner. 276 women (M age = 37.25, SD = 4.64) were recruited from the Denver metro area for a randomized controlled trial in which participants were assigned to a supervised aerobic exercise program varying in a fully crossed design by intensity (55–65% versus 75–85% of VO2max) and duration (40 versus 20 min per session). DNA methylation was assessed via blood samples provided at baseline, after completing a 16-week supervised exercise intervention, and six months after the intervention. 137 participants completed the intervention, and 81 had viable pre-post methylation data. Contrary to our hypotheses, total exercise volume completed in kcal/kg/week was not associated with methylation from baseline to post-intervention for any of the genes of interest. An increase in VO2max over the course of the intervention, however, was associated with decreased post-intervention methylation of BRCA1, p = 0.01. Higher levels of self-reported exercise during the follow-up period were associated with lower levels of GALNT9 methylation at the six-month follow-up. This study provides hypothesis-generating evidence that increased exercise behavior and or increased fitness might affect methylation of some genes associated with breast cancer to reduce risk.

Barriers to Supervised Exercise Training in a Randomized Controlled Trial of Breast Cancer Patients Receiving Chemotherapy

2008 ◽  
Vol 35 (1) ◽  
pp. 116-122 ◽  
Author(s):  
Kerry S. Courneya ◽  
Donald C. McKenzie ◽  
Robert D. Reid ◽  
John R. Mackey ◽  
Karen Gelmon ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Randomized Controlled Trial ◽  
Exercise Training ◽  
Cancer Patients ◽  
Controlled Trial ◽  
Breast Cancer Patients ◽  
Randomized Controlled ◽  
Supervised Exercise

scholarly journals Adherence to a Lifestyle Exercise and Nutrition Intervention in University Employees during the COVID-19 Pandemic: A Randomized Controlled Trial

2021 ◽  
Vol 18 (14) ◽  
pp. 7510
Author(s):  
Guillermo García Pérez de Sevilla ◽  
Olga Barceló Guido ◽  
María de la Paz De la Cruz ◽  
Ascensión Blanco Fernández ◽  
Lidia B. Alejo ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Effect Size ◽  
Exercise Intervention ◽  
Controlled Trial ◽  
Intervention Group ◽  
Nutrition Intervention ◽  
Sitting Time ◽  
Post Intervention ◽  
University Employees ◽  
Randomized Controlled

Healthy lifestyles should be encouraged in the workplace through the occupational health teams of the companies. The objective of the present study was to evaluate the adherence to a lifestyle intervention carried out in university employees during the COVID-19 pandemic and its impact on health-related quality of life (HrQoL). A randomized controlled trial following the CONSORT guidelines was performed, consisting of three supervised interventions lasting for 18 weeks: an educational intervention on healthy habits, a nutritional intervention, and a telematic aerobic and strength exercise intervention. Lifestyle and HrQoL were analyzed six months post-intervention to assess adherence. Twenty-three middle-aged participants completed the study. The intervention group significantly improved their lifestyle according to the Health Promoting Lifestyle Profile II questionnaire, especially in the categories of Health Responsibility, Physical Activity, and Nutrition, with a large effect size. Sitting time was reduced by 2.5 h per day, with a moderate effect size. Regarding HrQoL, the intervention group showed a clinically significant improvement in the Physical Component Summary. Despite the lockdown and the mobility restrictions caused by the COVID-19 pandemic, this intervention performed on university employees achieved adherence to a healthier lifestyle and improved their HrQoL, which is of great clinical relevance.

Efficacy of task-specific circuit training on physical activity levels and mobility of stroke patients: A randomized controlled trial

2020 ◽  
Vol 47 (4) ◽  
pp. 451-462
Author(s):  
Júlia Caetano Martins ◽  
Sylvie Nadeau ◽  
Larissa Tavares Aguiar ◽  
Aline Alvim Scianni ◽  
Luci Fuscaldi Teixeira-Salmela ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Post Intervention ◽  
Randomized Controlled ◽  
Secondary Outcomes ◽  
Experimental Group

BACKGROUND: Impaired mobility is related to low physical activity (PA) levels observed after stroke. Therapeutic approaches, such as task-specific circuit training (TSCT), used to improve mobility in individuals with stroke, could also improve PA levels. OBJECTIVE: To investigate the efficacy of TSCT, focused on both upper (UL) and lower (LL) limbs, in improving PA levels and mobility (primary outcomes), as well as muscle strength, exercise capacity, and quality of life (secondary outcomes) in subjects with stroke. METHODS: A randomized controlled trial with 36 subjects with chronic stroke was conducted. Experimental group: TSCT, involving both UL and LL. Control group: global stretching, memory exercises, and education sessions. Both groups received 60 minute sessions/week over 12 weeks. Outcomes were measured at baseline, post-intervention and 16 week follow-up. RESULTS: No changes were found for primary and secondary outcomes (0.11≤p≤0.99), except for quality of life, which improved in the experimental group post-intervention and 16 week follow-up (p = 0.02). CONCLUSION: TSCT focused on both UL and LL was not effective on PA levels and mobility of individuals with chronic stroke, however, improvements in quality of life were observed. Since this is the first study to investigate this combined training aimed at improving PA levels, future studies are necessary to better understand the impact of this type of intervention.

scholarly journals 1032 Auricular Point Acupressure for Sleep Disturbance in Women With Breast Cancer: A Pilot Randomized Controlled Trial

SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A392-A392
Author(s):  
Y Wang ◽  
J Wu ◽  
J Li ◽  
J Zhou
Keyword(s):  
Breast Cancer ◽  
Randomized Controlled Trial ◽  
Sleep Disturbance ◽  
Controlled Trial ◽  
Control Group ◽  
Sleep Onset Latency ◽  
Post Intervention ◽  
Randomized Controlled ◽  
Auricular Point ◽  
Pilot Randomized Controlled Trial

Abstract Introduction Sleep disturbance is reported in up to 60% of cancer patient. In traditional Chinese medicine, evidence suggests that auricular point acupressure (APA) improves sleep. However, little is known about APA’s effect on sleep disturbance in patients with breast cancer (BC). We tested the preliminary efficacy of APA on sleep in BC women undergoing chemotherapy. Methods A pilot randomized controlled trial was conducted in 41 BC patients (mean age=50±14) with self-reported poor sleep [Pittsburgh Sleep Quality Index (PSQI)≥7]. Participants were randomly assigned to an APA group (n=22) and a control group (n=19). All patients received sleep hygiene education. Additionally, for the APA group, magnetic pellets were attached to selected auricular points once a week for 3 weeks at the clinic, and the participants were instructed to self-press the pellets 4 times a day. Sleep were objectively measured by Actiwatch Spectrum and subjectively using PSQI at baseline and post-intervention. Paired t-tests and analyses of covariance using the variable baseline values were used to examine changes in sleep parameters. Results Twenty-one participants from the APA and sixteen from the control groups completed the study. Within the APA group, PSQI [mean difference (MD)=3.85, 95% Confidence Interval (C)=3.12~4.60] and sleep onset latency (MD=18.02, 95%CI=5.96~30.09) were significantly decreased, and the sleep duration (MD=-0.53, 95%CI=-0.99~-2.35) and sleep efficacy (MD=-5.00, 95%CI=-8.72~-1.28) were significant increased at post-intervention. Compared to the control group, participants in the APA group had significantly lower PSQI (F=30.77, p<0.001) and greater sleep efficacy (F=5.25, p=0.028) at post-intervention. Conclusion APA may be an inexpensive and effective approach to improve sleep in patients with BC. More rigorous research with larger samples is needed to further test the efficacy of APA on promoting sleep in BC patients. Support None

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