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Does practice quality mediate the relationship between practice time and outcome in mindfulness-based stress reduction?

ABSTRACT: Interventions based on mindfulness meditation are increasingly common and evidence exists supporting their use. However, questions remain regarding treatment mechanisms accounting for beneficial effects. The current study examined 1 candidate mechanism-mindfulness practice quality-as a mediator of the link between practice time and outcome within mindfulness-based stress reduction (MBSR). Participants (n = 96) completed measures of mindfulness and psychological symptoms at baseline and posttreatment. A weekly questionnaire assessed practice time and quality over the 8 weeks of MBSR. Multilevel models accounted for nesting within participants, MBSR groups, and instructors. Results generally supported the reliability and validity of a weekly single-item practice quality measure. Greater practice time was associated with improved practice quality (r = .48). Increases in practice quality predicted improvements in self-report mindfulness and psychological symptoms (?s = .35, .30, and -.19, ps < .05), but not behavioral mindfulness (? = -.02, p = .879). In multilevel mediation models, improved practice quality mediated the link between practice time and changes in self-report mindfulness, suggesting improved practice quality functions as a mechanism linking practice time and outcome in MBSR. Future research evaluating practice quality in clinical samples, in tandem with intensive sampling paradigms (e.g., experience sampling) and objective (behavioral, physiological) outcomes may be warranted. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

SUBMITTER: Goldberg SB

PROVIDER: S-EPMC6937382 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Does practice quality mediate the relationship between practice time and outcome in mindfulness-based stress reduction?

Goldberg Simon B SB Knoeppel Cara C Davidson Richard J RJ Flook Lisa L

Journal of counseling psychology 20190725 1

Interventions based on mindfulness meditation are increasingly common and evidence exists supporting their use. However, questions remain regarding treatment mechanisms accounting for beneficial effects. The current study examined 1 candidate mechanism-mindfulness practice quality-as a mediator of the link between practice time and outcome within mindfulness-based stress reduction (MBSR). Participants (<i>n</i> = 96) completed measures of mindfulness and psychological symptoms at baseline and po ...[more]

PMID: 31343215

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Project description:Mindfulness has been described as an inherent human capability that can be learned and trained, and its improvement has been associated with better health outcomes in both medicine and psychology. Although the role of practice is central to most mindfulness programs, practice-related improvements in mindfulness skills is not consistently reported and little is known about how the characteristics of meditative practice affect different components of mindfulness. The present study explores the role of practice parameters on self-reported mindfulness skills. A total of 670 voluntary participants with and without previous meditation experience (n = 384 and n = 286, respectively) responded to an internet-based survey on various aspects of their meditative practice (type of meditation, length of session, frequency, and lifetime practice). Participants also completed the Five Facets Mindfulness Questionnaire (FFMQ), and the Experiences Questionnaire (EQ). The group with meditation experience obtained significantly higher scores on all facets of FFMQ and EQ questionnaires compared to the group without experience. However different effect sizes were observed, with stronger effects for the Observing and Non-Reactivity facets of the FFMQ, moderate effects for Decentering in EQ, and a weak effect for Non-judging, Describing, and Acting with awareness on the FFMQ. Our results indicate that not all practice variables are equally relevant in terms of developing mindfulness skills. Frequency and lifetime practice--but not session length or meditation type--were associated with higher mindfulness skills. Given that these 6 mindfulness aspects show variable sensitivity to practice, we created a composite index (MINDSENS) consisting of those items from FFMQ and EQ that showed the strongest response to practice. The MINDSENS index was able to correctly discriminate daily meditators from non-meditators in 82.3% of cases. These findings may contribute to the understanding of the development of mindfulness skills and support trainers and researchers in improving mindfulness-oriented practices and programs.

Project description:Mindfulness, a practice of non-judgmental awareness of present experience, has been associated with reduced eating psychopathology and emotion-driven eating. However, it remains unclear whether mindfulness relates to diet quality. Thus, the purpose of this study was to examine whether dispositional mindfulness is associated with diet quality and to explore psychological factors relating dispositional mindfulness to diet quality. Community-dwelling adults (N = 406; Mage = 43.19, SD = 7.26; Mbody mass index [BMI] = 27.08, SD = 5.28; 52% female) completed ratings of dispositional mindfulness, depressive symptoms, perceived stress, positive affect (PA), and negative affect (NA). Dietary intake was assessed using the Block Food Frequency Questionnaire, from which the 2015 Healthy Eating Index was derived. Analyses were conducted using the "lavaan" package in R with bias-corrected bootstrapped confidence intervals (BootCI). Age, sex, race, education, and BMI were entered as covariates in all models. Higher dispositional mindfulness was associated with higher diet quality (β = 0.11, p = 0.03), and this effect was mediated through lower depressive symptoms (indirect effect β = 0.06, p = 0.02, BootCI = 0.104-1.42, p = 0.03). Dispositional mindfulness was negatively correlated with perceived stress (β = -0.31, p < 0.01) and NA (β = -0.43, p < 0.01), as well as positively correlated with PA (β = -0.26, p < 0.01). However, these factors were unrelated to diet quality. These cross-sectional data provide initial evidence that dispositional mindfulness relates to diet quality among midlife adults, an effect that may be explained in part by less depressive symptomatology. Given that lifestyle behaviors in midlife are leading determinants of risk for cardiovascular disease and neurocognitive impairment in late life, interventions to enhance mindfulness in midlife may mitigate disease risk. Additional research assessing the impact of mindfulness interventions on diet quality are warranted.

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Does practice quality mediate the relationship between practice time and outcome in mindfulness-based stress reduction?

Publications

Does practice quality mediate the relationship between practice time and outcome in mindfulness-based stress reduction?

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