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Associations of Cardiorespiratory Fitness and Muscular Strength With Sleep Quality in Older Adults.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Associations of Cardiorespiratory Fitness and Muscular Strength With Sleep Quality in Older Adults./
Author:	Jouzi, Taline.
Description:	1 online resource (72 pages)
Notes:	Source: Masters Abstracts International, Volume: 85-12.
Contained By:	Masters Abstracts International85-12.
Subject:	Epidemiology. -
Online resource:	click for full text (PQDT)
ISBN:	9798382812519

Associations of Cardiorespiratory Fitness and Muscular Strength With Sleep Quality in Older Adults.
Jouzi, Taline.

Associations of Cardiorespiratory Fitness and Muscular Strength With Sleep Quality in Older Adults. - 1 online resource (72 pages)

Source: Masters Abstracts International, Volume: 85-12.

Thesis (M.S.)--Iowa State University, 2024.

Includes bibliographical references

Purpose: Cardiorespiratory fitness (CRF) and muscular strength (MS) are important factors that can determine one's health outcomes and risk of premature mortality. However, it is still unclear whether CRF has a direct association with sleep quality, especially in older adults who often experience sleep complaints. There is also little research on the impact of MS, independent of or combined with CRF, on sleep quality in older adults. This study aims to investigate the independent and combined effects of CRF and MS on sleep quality in older adults.Methods: This cross-sectional study included 818 older adults (≥65 years; 58% female, mean age 72 years) from the Physical Activity and Aging Study (PAAS). CRF and MS were assessed by a 400m walk test and handgrip strength, respectively. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI) and scored following standard procedures. Poor sleep quality was defined as a global PSQI score >5 based on earlier studies. Logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) of poor sleep quality by sex-specific tertiles of CRF or MS. Participants were further categorized as Most Fit (upper tertile of CRF) or Least Fit (lower and middle tertiles of CRF), and Strong (upper tertile of MS) or Weak (lower and middle tertiles of MS) for joint analysis. All analyses were adjusted for age, sex, body mass index, smoking, heavy alcohol intake, depression, anxiety, self-reported sleep apnea, and comorbidities.Results: There were 273 (33%) cases of poor sleep quality (mean score ± standard deviation: 4.7 ± 2.9). Compared with the lower tertile of CRF, the ORs (95% CIs) of poor sleep quality were 1.00 (0.66,1.51) and 0.95 (0.59,1.53) for the middle and upper tertiles of CRF, respectively, after adjusting for potential confounders, including MS. Compared with the lower tertile of MS, the ORs (95% CIs) of poor sleep quality were 0.90 (0.61,1.31) and 0.60 (0.40,0.90) for the middle and upper tertiles of MS, respectively, after adjusting for potential confounders, including CRF. In the joint analysis, compared with the 'Weak and Least Fit group, the odds of poor sleep prevalence were 0.70 (0.45,1.08), 1.05 (0.66-1.65), and 0.59 (0.36, 0.97) for the 'Strong and Least Fit, 'Weak and Most Fit, and 'Strong and Most Fit groups, respectively.Conclusion: These results suggest that MS, but not CRF, was associated with poor sleep quality in this sample of older adults; however, prospective studies are warranted.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798382812519Subjects--Topical Terms:

635923
Epidemiology.
Subjects--Index Terms:

Cardiorespiratory fitnessIndex Terms--Genre/Form:

554714
Electronic books.

Associations of Cardiorespiratory Fitness and Muscular Strength With Sleep Quality in Older Adults.
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520 $a Purpose: Cardiorespiratory fitness (CRF) and muscular strength (MS) are important factors that can determine one's health outcomes and risk of premature mortality. However, it is still unclear whether CRF has a direct association with sleep quality, especially in older adults who often experience sleep complaints. There is also little research on the impact of MS, independent of or combined with CRF, on sleep quality in older adults. This study aims to investigate the independent and combined effects of CRF and MS on sleep quality in older adults.Methods: This cross-sectional study included 818 older adults (≥65 years; 58% female, mean age 72 years) from the Physical Activity and Aging Study (PAAS). CRF and MS were assessed by a 400m walk test and handgrip strength, respectively. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI) and scored following standard procedures. Poor sleep quality was defined as a global PSQI score >5 based on earlier studies. Logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) of poor sleep quality by sex-specific tertiles of CRF or MS. Participants were further categorized as Most Fit (upper tertile of CRF) or Least Fit (lower and middle tertiles of CRF), and Strong (upper tertile of MS) or Weak (lower and middle tertiles of MS) for joint analysis. All analyses were adjusted for age, sex, body mass index, smoking, heavy alcohol intake, depression, anxiety, self-reported sleep apnea, and comorbidities.Results: There were 273 (33%) cases of poor sleep quality (mean score ± standard deviation: 4.7 ± 2.9). Compared with the lower tertile of CRF, the ORs (95% CIs) of poor sleep quality were 1.00 (0.66,1.51) and 0.95 (0.59,1.53) for the middle and upper tertiles of CRF, respectively, after adjusting for potential confounders, including MS. Compared with the lower tertile of MS, the ORs (95% CIs) of poor sleep quality were 0.90 (0.61,1.31) and 0.60 (0.40,0.90) for the middle and upper tertiles of MS, respectively, after adjusting for potential confounders, including CRF. In the joint analysis, compared with the 'Weak and Least Fit group, the odds of poor sleep prevalence were 0.70 (0.45,1.08), 1.05 (0.66-1.65), and 0.59 (0.36, 0.97) for the 'Strong and Least Fit, 'Weak and Most Fit, and 'Strong and Most Fit groups, respectively.Conclusion: These results suggest that MS, but not CRF, was associated with poor sleep quality in this sample of older adults; however, prospective studies are warranted.
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