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Adapting Sleep and Yoga Interventions for Maximal Effectiveness in Low Income Populations

Adapting Sleep and Yoga Interventions for Maximal Effectiveness in Low Income Populations

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03392194
Acronym
CALYPSO
Enrollment
33
Registered
2018-01-05
Start date
2018-01-10
Completion date
2018-07-12
Last updated
2019-09-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep

Keywords

Behavioral interventions, Sleep hygiene, Yoga, Community research, Short sleep duration, Low-income population

Brief summary

The purpose of this study is to evaluate the feasibility of conducting a future randomized control trial that will compare the efficacy of sleep behavioral interventions in a high-risk community including adapted sleep hygiene and yoga. The investigators will conduct a 40 person 12-week randomized control trial (RCT) in low-income housing population where half the participants will receive a community adapted sleep hygiene intervention (SH) and half will receive a community adapted sleep hygiene intervention and a yoga intervention. The investigators will evaluate the feasibility of recruiting from our target community, randomizing individuals to interventions delivered in community rooms with home-based practices, and delivering the targeted interventions with high adherence and fidelity.

Detailed description

Inadequate sleep is highly prevalent in low-socioeconomic status (SES) and minority groups and associated with multiple health problems. The root causes of inadequate sleep are often related to behavioral practices and stress, both of which may be favorably impacted using socio-contextually appropriate sleep hygiene recommendations and mind-body practices such as yoga. A preliminary RCT that will address the role of sleep behavioral interventions in a high-risk community will be conducted. This evidence is needed to guide mind-body therapies in low-SES communities in which such strategies are under-utilized to improve health. The investigators have assembled a multidisciplinary team of experts in sleep medicine, complementary and integrative health, behavioral medicine, community engagement, social epidemiology, and clinical trials to conduct a planning study to adapt behavioral sleep interventions for residents in urban low-income housing and to evaluate their uptake and fidelity. The investigators have conducted qualitative formative evaluation work and conducted modified SH and Yoga pilot studies. In this phase, the investigators will deliver a 12-week trial testing the feasibility of (1) an adapted sleep hygiene intervention (SH) and (2) yoga + adapted sleep hygiene intervention SH+Y): A. A Sleep Hygiene (SH) Intervention, addressing: beliefs and attitudes towards sleep; challenges for adhering to sleep hygiene recommendations given chaotic family routines, work schedules and bedroom conditions; strategies for overcoming barriers, and prioritization of recommendations most likely to be efficacious. B. A Yoga (Y) Intervention: intervention intensity/duration and class format; tailored home-based recommendations for bedtime practice combining meditation, breathing and postures; tools to assess and enhance adherence; race/ethnicity concordance of the instructor and student; and use of peer yoga assistants. The investigators aim to conduct a 40 person 12-week RCT of SH vs SH+Y to inform the design of a future large-scale RCT. The investigators will evaluate the feasibility of recruiting from our target community, randomizing individuals to interventions delivered in community rooms with home-based practices, and delivering the targeted interventions with high adherence and fidelity. The following will be evaluated: * Reach of the target population: The number of potentially eligible individuals approached to participate will be tracked as well as the characteristics of individuals who do and do not choose to participate, and differences will be assessed. Reasons for choosing not to participate will be assessed using open ended questions (e.g., burden, perception of yoga, needs, etc.). * Adoption and adherence: the proportion of individuals that sustain participation throughout the intervention will be assessed, and quantify attendance at classes and home-practices through logs and interim phone interviews. The investigators will describe patterns of dropout rates and adherence to the interventions by key demographic factors and by moderating and mediating factors. * Implementation-consistency of delivery of the intervention: a checklist of core intervention elements will be used to document the degree to which core elements of the intervention was delivered as specified in the protocol. The investigators will also assess the feasibility of collecting a range of baseline, outcome, process and mediator data and to generate data to support use of specific measures in a later trial, including patterns of missingness of data, distributions of data, correlations between outcomes, baseline factors and mediators, and evaluation of dose-response associations between time in intervention and sleep duration and efficiency. Power analysis (sample size, evaluable subjects, etc.): The study is designed for feasibility and not powered to test the intervention effect. The SH+Y intervention will be considered as potentially efficacious if the estimates for the change scores (post-pre within and between group changes and their 95% confidence intervals) are consistent with clinically significant improvements in sleep duration (actigraphy sleep increases by \> 30 minutes), sleep quality improves by \> 0.3 standard deviations), or sleep hygiene (reduction in deviation in wake time relative to recommended wake time \> 25%). The investigators will consider inclusion of specific measurements (mediators) in a future RCT based on: \<10% missingness; correlation of change score or baseline score with outcomes of \>.20; absence of redundancy with a simpler metric (r\<.80).

Interventions

The community-adapted SH intervention includes 2 group sessions. (1) teach the importance of sleep and the core components of SH; distribute and explain the daily sleep log (2) facilitate an open discussion where participants share challenges and experiences implementing a SH goal.

BEHAVIORALYoga intervention

Following the SH intervention, participants randomized to the SH+Y arm will participate in 8 weekly beginner level yoga classes. Classes will increase participants' skill and comfort with yoga postures and relaxing breathing exercises so that participants can adopt an evening yoga practice (10 weeks).

Sponsors

National Center for Complementary and Integrative Health (NCCIH)
CollaboratorNIH
Brigham and Women's Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Verbally proficient in English * Self-reported average (over the prior month) weekday sleep duration of \< 6 hours * Reside in a public housing

Exclusion criteria

* Severe physical conditions preventing participation in yoga, including major surgery or head injury in the prior 3 months, or unstable vertebral injury with inability to sit or lie down for 5 or more minutes; or glaucoma * Major psychiatric disease (e.g. schizophrenia, depression, PTSD) resulting in hospitalization in the last year; or disease severity that, in the opinion of the investigator, would make it difficult for the participant to partake in the study activities. * Severe sleep disorders: self-report of physician diagnosed insomnia requiring hypnotics more than 3 times/ week or an untreated known sleep disorder (sleep apnea, RLS), that in the opinion of the investigator, would make it difficult for the participant to achieve sleep hygiene goals. * Needing an assistive device such as a walker or cane, frequent falls, history of stroke resulting in weakness or numbness interfering with moving easily, or other problems causing ongoing balance issues and difficulty walking * Yoga class participation in last 6 weeks * Known pregnancy. * Participation in prior sleep and yoga study pilots

Design outcomes

Primary

MeasureTime frameDescription
Sleep Duration12 weeksChange in sleep duration from baseline to follow-up measure by actigraphs. We will conduct a repeated measures ANCOVA, modeling time, intervention group and a time\*intervention interaction. We will explore change in stress, anxiety, depressive symptoms, mindfulness, and sleep hygiene score as potential explanatory variables.

Countries

United States

Participant flow

Recruitment details

From January-March 2018, participants were recruited from two affordable housing communities. Convenience and snowball sampling methods were employed. Study staff and community partners provided information to interested participants at community events and distributed flyers and postcards throughout the communities.

Pre-assignment details

Sleep hygiene (SH) group sessions served as a run-in period for randomization. Participants were consented to participate in the research study (n=38) and then attended two SH group session. At the end of the second SH session, participants were randomized to the SH-arm or the sleep hygiene and yoga (SH+Y) arm (n=33).

Participants by arm

ArmCount
Sleep Hygiene & Yoga (SH+Y)
Participants will receive the sleep hygiene intervention, which includes 2 sleep hygiene sessions and 10 weeks of maintenance assessment. After completing the SH sessions, they will receive 10 weeks of the yoga intervention (8 in-person yoga sessions and 2 weeks of yoga home practice maintenance assessment). Sleep hygiene intervention: The community-adapted SH intervention includes 2 group sessions. (1) teach the importance of sleep and the core components of SH; distribute and explain the daily sleep log (2) facilitate an open discussion where participants share challenges and experiences implementing a SH goal. Yoga intervention: Following the SH intervention, participants randomized to the SH+Y arm will participate in 8 weekly beginner level yoga classes. Classes will increase participants' skill and comfort with yoga postures and relaxing breathing exercises so that participants can adopt an evening yoga practice (10 weeks).
16
Sleep Hygiene (SH)
Participants will receive the sleep hygiene intervention, which includes 2 sleep hygiene sessions and 10 weeks of maintenance assessment. Sleep hygiene intervention: The community-adapted SH intervention includes 2 group sessions. (1) teach the importance of sleep and the core components of SH; distribute and explain the daily sleep log (2) facilitate an open discussion where participants share challenges and experiences implementing a SH goal.
17
Total33

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyConflicts with personal schedule10
Overall StudyWithdrawal by Subject12

Baseline characteristics

CharacteristicSleep Hygiene & Yoga (SH+Y)Sleep Hygiene (SH)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants2 Participants4 Participants
Age, Categorical
Between 18 and 65 years
14 Participants15 Participants29 Participants
Age, Continuous44.44 years
STANDARD_DEVIATION 14.74
47.29 years
STANDARD_DEVIATION 10.83
45.91 years
STANDARD_DEVIATION 13.09
Ethnicity (NIH/OMB)
Hispanic or Latino
6 Participants7 Participants13 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants9 Participants19 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
2 Participants1 Participants3 Participants
Race (NIH/OMB)
Black or African American
6 Participants8 Participants14 Participants
Race (NIH/OMB)
More than one race
2 Participants3 Participants5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants2 Participants5 Participants
Race (NIH/OMB)
White
3 Participants2 Participants5 Participants
Sex: Female, Male
Female
15 Participants15 Participants30 Participants
Sex: Female, Male
Male
1 Participants2 Participants3 Participants
Sleep Duration400.69 minutes/night
STANDARD_DEVIATION 75.45
418.06 minutes/night
STANDARD_DEVIATION 66.07
409.37 minutes/night
STANDARD_DEVIATION 70.24

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 160 / 17
other
Total, other adverse events
8 / 166 / 17
serious
Total, serious adverse events
0 / 160 / 17

Outcome results

Primary

Sleep Duration

Change in sleep duration from baseline to follow-up measure by actigraphs. We will conduct a repeated measures ANCOVA, modeling time, intervention group and a time\*intervention interaction. We will explore change in stress, anxiety, depressive symptoms, mindfulness, and sleep hygiene score as potential explanatory variables.

Time frame: 12 weeks

Population: The missing count is based on 21 participants having adequate quality actigraphy data at both baseline and endpoint

ArmMeasureValue (MEAN)Dispersion
Sleep Hygiene & Yoga (SH+Y)Sleep Duration-0.91 minutes/nightStandard Deviation 43.87
Sleep Hygiene (SH)Sleep Duration-2.93 minutes/nightStandard Deviation 66.92
Comparison: Null hypothesis: There is no difference in change in sleep duration between the two intervention arms.p-value: 0.93295% CI: [-46.35, 50.39]t-test, 2 sided

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026