Análises da mediação e moderação do mindfulness sobre medidas de afeto, ansiedade e estresse em adultos jovens saudáveis
Contemporary lifestyle has a strong impact on people's health and mental wellbeing, as suggested by current World Health Organization indicators. Such impairment is generally linked to the deregulation of the psychophysiological mechanisms of stress response, given the variety and the frequen...
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Formato: | Dissertação |
Idioma: | pt_BR |
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Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/28431 |
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Resumo: | Contemporary lifestyle has a strong impact on people's health and mental wellbeing, as suggested by current World Health Organization indicators. Such impairment is
generally linked to the deregulation of the psychophysiological mechanisms of stress
response, given the variety and the frequency of stressful events to which the population is
exposed daily. In this context, non-pharmacological interventions to reduce the impact of
these agents have been used, including those that integrate the mind and body dimensions,
such as mindfulness. This meditative practice, which has been implicated in reducing
symptoms of anxiety, depression, and stress, is usually defined in terms of the ability to pay
attention to the present moment with openness, acceptance, and kindness, being evaluated
as a state or a trait. Thus, the present study aimed to demonstrate, through an exploratory
approach, whether a brief practice of mindfulness depends on the trait or state of
mindfulness, or both, and interferes with variables that express psychological well-being.
Our hypotheses predict that (1) the high level of mindfulness is associated with better
psychological well-being; (2) a brief practice of mindfulness reduces the indicators and
increases the positive indicators of psychological well-being, and (3) these changes are
mediated by practice-induced increase in state mindfulness. A sample consisted of healthy
young university students (n = 40; 20 men) and measures associated with anxiety (STAI),
affect (PANAS), stress (PSS, plasma cortisol), and mindfulness (state, SMS and trait,
FFMQ) were collected. Initially, by means of a cluster analysis (k-means), these individuals
were classified as high / low mindfulness trait, in which those with high trait presented
lower levels of anxiety state and perceived stress. Additionally, the sample was tested by
dividing it into an active control group (AC, n = 20) and a mindfulness training group (MT,
n = 20) using a mixed variance analysis (between: group, within: session [before / after
intervention]) to investigate the effect of the intervention between and within groups. Only
within MT there was a reduction in the anxiety state and perceived stress in addition to an
increase in state mindfulness after the practice. Within both groups there was a reduction in
negative affect and plasma cortisol levels and no difference was found for positive affect.
Moderated mediation analysis showed that the increase in state mindfulness mediated an
increase in positive affect and a decrease in perceived stress and cortisol. The mediating
effect of state mindfulness in decreasing anxiety state occurs only in individuals with high
mindfulness trait. Despite the limitations of the sample size and the exploratory nature of
the study, which uses multiple tests for the same dataset, these results suggest that the mindfulness trait is associated with lower stress levels, and that a brief mindfulness-based
intervention promotes attenuation of the negative psychophysiological response, and
mediate increase in positive affect. These results point to a positive effect of a brief
mindfulness practice in a specific group of individuals, and open perspectives for further
investigation and its application in different populations. |
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