The MMM Middle-Range Theory and How it should be Implemented in Nursing

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Physical activity has been linked to decreasing the risk of developing breast and colon cancers, cardiovascular disease, stroke, diabetes mellitus, depression, and risk of falls (World Health Organization, 2013). The World Health Organization has outlined a generic thirty minutes of moderate-intensity physical activity five times per week as a standard for acquiring health benefits (2013). Unfortunately, the majority of the population does not attain these minimum physical activity requirements (Johnson & Taylor, 2011). Nowadays, physical inactivity is the fourth leading risk factor for mortality in the world (World Health Organization, 2013). Effective strategies to improve the participation in physical activity are desperately needed (Johnson & Taylor, 2011). The middle-range theory proposed by Murrock and Higgins suggests that music, mood, and movement (MMM) can play a role in effecting participation in and intensity of physical activity and in turn, improve health outcomes (2009). More specifically, there are three theoretical statements that are of importance for this theory.
Theoretical Statement: Music Alters Mood
The first theoretical statement of the middle-range MMM theory is that music produces the psychological response of altered mood leading to improved health outcomes (Murrock & Higgins, 2009). Based on the musical elements of rhythm, melody, pitch, harmony, and interval there are psychological responses that are elicited once music passes through the auditory cortex of the brain to process it (Murrock & Higgins, 2009). The right hemisphere of the brain helps with response and cognitive recognition of music and in turn is able to alter the mood, leading to various health outcomes (Murrock & Higgins, 2009). In a stu...

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