A Home-Based Study to Enhance Activity in Breast Cancer Survivors
There is a well-documented association between physical activity & risk for breast cancer development and recurrence. It is known that exercise interventions have been effective at increasing physical activity levels in breast cancer survivors. Knowing that breast cancer survivors are less active than non-cancer patients, a less active lifestyle places them at risk of obesity and poor overall health, which in turn also increases risk of cancer and cancer recurrence. Not all the reasons for the risk reduction are clear, however it is known that hormones and other inflammatory markers play a role.
This study has three goals:
- To investigate the feasibility of a home intervention designed to reduce sedentary behavior.
- Describe the effects of the intervention on levels of sedentary behavior, physical activity, and symptoms.
- Assess cost of the intervention.
Tutkimuksen yleiskatsaus
Tila
Ehdot
Interventio / Hoito
Yksityiskohtainen kuvaus
There is a well-documented association between physical activity and risk for breast cancer development and recurrence. Exercise training interventions have been effective at increasing physical activity levels in breast cancer survivors, however they require 1) a large degree of patient initiative to achieve positive health outcomes associated with sustained behavioral change and 2) facilities and oversight that may be prohibitive in a clinical setting. Although most activity-based research to date has focused on increasing levels of moderate to vigorous physical activity (MVPA) for breast cancer survivors, large epidemiological studies suggest that breast cancer survivors are also more sedentary when compared to non-cancer controls. A recent meta-analysis of controlled intervention trials designed to promote physical activity among sedentary cancer survivors found that none of the trials within the scope of the review succeeded in achieving 75% or better adherence to prescribed exercise guidelines, leading the authors to question whether shifting the target of intervention from MVPA to reductions in sedentary time might be a more realistic goal. Recent research suggests that interventions designed to reduce sedentary time in breast cancer survivors have the potential to yield clinically meaningful health benefits, especially for individuals at higher risk for sedentary behaviors, however the optimal method of intervention is not clear.
Aim 1: Feasibility of the intervention Assess the feasibility of an intervention designed to reduce sedentary behavior in breast cancer survivors. The behavioral intervention will involve the review of a 7-day baseline snapshot of sedentary behavior and physical activity patterns, combined with tailored activity prompts described over the following 6 weeks.
Aim 2: Effects of the intervention Aim 2a: Describe a preliminary range of effect sizes of the intervention on levels of sedentary behavior, physical activity and symptoms of cancer survivorship (e.g. cancer related fatigue).
Aim 2b: Evaluate the relationship between change in sedentary behavior and change in cancer-relevant outcomes, such as fatigue and biomarkers of cancer recurrence (e.g. IGF-1, Leptin), following the reduced sedentary time intervention.
Aim 3: Assessment of intervention components Aim 3a: Quantitatively assess overall cost of the intervention and its individual components, dose delivered and dose received by intervention participants Aim 3b: Quantitatively describe intervention participants' perspectives on the impact of the individual intervention components, including which components appeared most useful for reducing sedentary time.
Opintotyyppi
Ilmoittautuminen (Todellinen)
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Opiskelupaikat
-
-
Massachusetts
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Springfield, Massachusetts, Yhdysvallat, 01109
- Baystate Medical Center
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-
Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
Hyväksyy terveitä vapaaehtoisia
Sukupuolet, jotka voivat opiskella
Kuvaus
Inclusion Criteria:
- Stage I-III breast cancer survivors 20-80 who have completed primary treatment (surgery, radiation and/or chemotherapy) greater than 6 months but less than 5 years ago. Patients may be on adjuvant hormonal therapy
- BMI > 25 (overweight or class I/II obese)
- Not meeting current guidelines for regular exercise as defined by less than 150 minutes a week of moderate to vigorous physical activity
- No gain or loss of >10% body weight over the prior 6 months.
Exclusion Criteria:
- Known diabetes
- Known coronary artery disease
- Pregnancy
- Any injury that would limit mobility or require use of assisted mobility devices
- Weight gain or loss of >10% body weight over the prior 6 months
- Greater than 150 minutes a week of moderate to vigorous physical activity
- Inability to provide informed consent
- Non-english speaking
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Hoito
- Jako: Ei käytössä
- Inventiomalli: Yksittäinen ryhmätehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Muut: Reduced Sedentary Time Intervention
Reduced Sedentary Time Intervention (RSTI)
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Following 7 days of baseline activity monitoring a study investigator will download the information from the monitor, evaluate the periods of sedentary behavior and create a tailored RSTI for each participant.
For example, the investigator may notice a long stretch of sitting in the evening following a meal and identify several exercises that can be done indoors during that time, or if the participant is amiable to walking breaks and a period after work is identified the investigator might suggest the appropriate walking activity at that time.
This program has been successful in sedentary overweight office workers and investigators will use similar techniques.
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Sedentary Time
Aikaikkuna: 8 weeks
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Change in minutes/day of sedentary time as recorded by ActivPal in all 25 participants pre and post intervention.
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8 weeks
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Activity Level
Aikaikkuna: 8 weeks
|
Change in Activity level as recorded by Actigraph monitor in all 25 participants
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8 weeks
|
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Glucose
Aikaikkuna: 8 weeks
|
Change in fasting glucose ( mmol/L)in all 25 participants
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8 weeks
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Insulin
Aikaikkuna: 8 weeks
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Change in insulin (pmol/L) in all 25 participants
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8 weeks
|
|
Total cholesterol
Aikaikkuna: 8 weeks
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Change in total cholesterol (mmol) in all 25 participants
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8 weeks
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High density lipoprotien cholesterol
Aikaikkuna: 8 weeks
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Change in high density lipoprotein cholesterol (mmol) in all 25 participants
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8 weeks
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Triglyceride
Aikaikkuna: 8 weeks
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Change in triglycerides (mmol) in all 25 participants
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8 weeks
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Body Mass Index
Aikaikkuna: 8 weeks
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Change in Body Mass Index (kg/m2) in all 25 participants
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8 weeks
|
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Waist Circumference
Aikaikkuna: 8 weeks
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Change in waist circumference in cm in all 25 participants
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8 weeks
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Systolic Blood pressure
Aikaikkuna: 8 weeks
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Change in systolic blood pressure measured in mmHg in all 25 participants
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8 weeks
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Diastolic Blood pressure
Aikaikkuna: 8 weeks
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Change in diastolic blood pressure measured in mmHg in all 25 participants
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8 weeks
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Cancer-related fatigue measured by change in PROMIS short form 8a in all 25 participants
Aikaikkuna: 8 weeks
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8 weeks
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|
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Cancer-related fatigue as measured by change in Visual Analog scale in all 25 participants
Aikaikkuna: 8 weeks
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8 weeks
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Sedentary behavior self -efficacy
Aikaikkuna: 8 weeks
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Change in Sedentary Behavior Self-Efficacy Scale (modified from BARSE) in all 25 participants
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8 weeks
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Change in EORTC-QLQ-C30 scores in all 25 participants
Aikaikkuna: 8 weeks
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8 weeks
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Assessment of Intervention
Aikaikkuna: 8 weeks
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Change in Assessment of Intervention questions on a scale of 1-5 in all 25 participants
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8 weeks
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Yhteistyökumppanit ja tutkijat
Sponsori
Yhteistyökumppanit
Tutkijat
- Päätutkija: Grace Makari-Judson, MD, Baystate Medical Center
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus
Ensisijainen valmistuminen (Todellinen)
Opintojen valmistuminen (Todellinen)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Arvio)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- 776553-5
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