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Bright light therapy in older adults with moderate to very severe dementia: immediate effects on behavior, mood, and physiological parameters

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http://hdl.handle.net/2183/28436
Creative Commons Attribution 4.0 International License (CC-BY 4.0)
A non ser que se indique outra cousa, a licenza do ítem descríbese como Creative Commons Attribution 4.0 International License (CC-BY 4.0)
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  • Investigación (FCS) [1295]
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Título
Bright light therapy in older adults with moderate to very severe dementia: immediate effects on behavior, mood, and physiological parameters
Autor(es)
Cibeira, Nuria
Maseda, Ana
Lorenzo-López, Laura
González-Abraldes, Isabel
López-López, Rocío
Rodríguez-Villamil, José Luis
Millán-Calenti, José Carlos
Data
2021-08-19
Cita bibliográfica
Cibeira N, Maseda A, Lorenzo-López L, González-Abraldes I, López-López R, Rodríguez-Villamil JL, Millán-Calenti JC. Bright light therapy in older adults with moderate to very severe dementia: immediate effects on behavior, mood, and physiological parameters. Healthcare (Basel). 2021 Aug 19;9(8):1065.
Resumo
[Abstract] Bright light therapy (BLT) has demonstrated positive short- and long-term effects in people with cognitive impairment or dementia; however, the immediate impact of BLT sessions has been scarcely investigated. In this study, we aimed to explore the immediate effects of BLT on behavior, mood, and physiological parameters (oxygen saturation/heart rate) in a sample of institutionalized older adults with moderate to very severe dementia, with a median age of 85.0 (interquartile range, IQR, 82.0–90.0), being higher in men (87.0 years, IQR 80.0–94.0) than in women (84.5 years, IQR 82.0–89.5). The BLT protocol consisted of 30-min morning sessions of 10,000 lux, Monday through Friday, for 4 weeks. The physiological parameters were recorded immediately before and after each session by pulse oximetry. Mood and behavior were assessed before, after, and during the sessions using the Interact scale. Post-session Interact scores showed a significant decrease in the items Tearful/sad and Talked spontaneously, and a significant increase in the items Enjoying self, active or alert, and Relaxed, content or sleeping appropriately. Interact scores during the sessions reflected a significant decrease in the speech-related items. Both physiological parameters changed positively from before to after sessions. Our results suggest that BLT provides immediate positive effects on mood, stimulation level, and physiological parameters, as well as a trend toward decreased speech. More robust research is needed to further explore the immediate impact of BLT. This study is registered with Clinicaltrials.gov (NCT04949984).
Palabras chave
Bright light therapy
Dementia
Mood
Behavior
Oxygen saturation
Heart rate
 
Versión do editor
https://doi.org/10.3390/healthcare9081065
Dereitos
Creative Commons Attribution 4.0 International License (CC-BY 4.0)
ISSN
2227-9032

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