Dataset Information

Enhancing physical and cognitive function in older adults through walking & resistance exercise: Korean national aging project randomized controlled study.

ABSTRACT:

Background

The rapid aging of Korea's population underscores the urgent need for effective programs to enhance the well-being and longevity of the elderly. This study presents preliminary results from the Korean project, examining the impact of cost-effective and accessible exercise programs on functional performance of older people and to determine the long-term maintenance of intervention.

Methods

We randomized 90 older adults aged ≥65 years to the walking group (WG), resistance + walking (RWG), or active control (CG) group. We designed a 12-week main intervention (supervised resistance training 2 d/week and individual walking exercise) and a 12-week follow-up through self-directed exercise (same protocol but unsupervised). The participants' mini mental state examination, color-word Stroop test and 5-time sit to stand, timed up & go, handgrip strength, and knee extensor strength tests were assessed at pre, post, as well as follow-up.

Results

For the RWG group, significant improvements were found in timed up & go (P < 0.001), and 5-time sit to stand (P < 0.001) compared to CG, with benefits maintained at follow-up. Both RWG and WG showed significant enhancements in knee extensor power (RWG: P < 0.0001; WG: P < 0.001) and flexor power (RWG: P < 0.01; WG: P = 0.018) compared to CG. Although cognitive performance did not show significant group-by-time interactions, RWG exhibited improvements in the Stroop Color and Color-Word tests at follow-up compared to baseline.

Conclusion

A resistance training program combined with walking effectively enhanced functional performance in older adults, providing lasting benefits over 12 weeks on physical functions, such as strength and endurance. However, it showed limited benefits on cognitive performance.

SUBMITTER: Jamrasi P

PROVIDER: S-EPMC11359743 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Enhancing physical and cognitive function in older adults through walking & resistance exercise: Korean national aging project randomized controlled study.

Jamrasi Parivash P Li Xinxing X Sung Yunho Y Kim Dong Hyun DH Ahn Seo Hyun SH Kang Yu Seon YS Song Wook W

Journal of exercise science and fitness 20240725 4

<h4>Background</h4>The rapid aging of Korea's population underscores the urgent need for effective programs to enhance the well-being and longevity of the elderly. This study presents preliminary results from the Korean project, examining the impact of cost-effective and accessible exercise programs on functional performance of older people and to determine the long-term maintenance of intervention.<h4>Methods</h4>We randomized 90 older adults aged ≥65 years to the walking group (WG), resistance ...[more]

PMID: 39211295

Similar Datasets

Project description:Canine cognitive dysfunction (CCD) is a form of dementia that shares many similarities with Alzheimer's disease. Given that physical activity is believed to reduce risk of Alzheimer's disease in humans, we explored the association between physical activity and cognitive health in a cohort of companion dogs, aged 6-18 years. We hypothesized that higher levels of physical activity would be associated with lower (i.e., better) scores on a cognitive dysfunction rating instrument and lower prevalence of dementia, and that this association would be robust when controlling for age, comorbidities, and other potential confounders. Our sample included 11,574 companion dogs enrolled through the Dog Aging Project, of whom 287 had scores over the clinical threshold for CCD. In this observational, cross-sectional study, we used owner-reported questionnaire data to quantify dog cognitive health (via a validated scale), physical activity levels, health conditions, training history, and dietary supplements. We fit regression models with measures of cognitive health as the outcome, and physical activity-with several important covariates-as predictors. We found a significant negative relationship between physical activity and current severity of cognitive dysfunction symptoms (estimate = - 0.10, 95% CI: - 0.11 to - 0.08, p < 0.001), extent of symptom worsening over a 6-month interval (estimate = - 0.07, 95% CI: - 0.09 to - 0.05, p < 0.001), and whether a dog reached a clinical level of CCD (odds ratio = 0.53, 95% CI: 0.45 to 0.63, p < 0.001). Physical activity was robustly associated with better cognitive outcomes in dogs. Our findings illustrate the value of companion dogs as a model for investigating relationships between physical activity and cognitive aging, including aspects of dementia that may have translational potential for Alzheimer's disease. While the current study represents an important first step in identifying a relationship between physical activity and cognitive function, it cannot determine causality. Future studies are needed to rule out reverse causation by following the same dogs prospectively over time, and to evaluate causality by administering physical activity interventions.

Project description:BackgroundFrailty is a growing concern among the aging population. Due to their vulnerability and reduced physiological reserves, frail older adults face an increased risk of functional decline and loss of independence. In frail older adults, the concept of healthy aging emphasizes maintaining independence, functionality, and a high quality of life despite frailty and other age-related challenges.ObjectiveGrounded in the multidimensional model of healthy aging and aging-related resilience theory, we aimed to propose and test a hypothesized model. The model included exogenous variables (cognitive and physical function, perceived health) and mediators (resilience, social support, and daily activity) as influencing factors of healthy aging among frail older adults.MethodsThe cross-sectional study was conducted in South Korea using a national survey of 505 frail older adults living in the community. The sample was representative across age groups, sex, and regional distributions. A structural equation modeling was employed to test a hypothesized model, examining both direct and indirect effects of influencing factors on healthy aging. Data were collected between October and December 2023 and analyzed using IBM SPSS 26.0 and AMOS 26.0.ResultsA total of 505 frail older adults with an average age of 74 participated in the study. The hypothesized model demonstrated a good fit with the data. The exogenous variables and mediators accounted for 43 % of the variance in healthy aging. Resilience, cognitive function, and perceived health had significant direct and indirect effects on healthy aging. Daily activity also had a significant direct effect on healthy aging. Social support, while not directly affecting healthy aging, exerted a significant indirect effect through daily activity. Similarly, physical function influenced healthy aging indirectly via daily activity. The model was tested after controlling for age, sex (ref=male), economic status, and years of education. Among these confounding variables, economic status was a significant influencing factor in healthy aging (β = 0.14, p = 0.016).ConclusionCognitive and physical function, alongside resilience and social support as mediators, significantly associated with healthy aging in frail older adults through daily activity. Health promotion strategies could focus on resilience and social support to empower individuals and strengthen social connectedness, thereby supporting independence in daily life and healthy aging. Further, we need to explore diverse social and cultural activities associated with healthy aging in this population to expand the definition of active aging.

Dataset Information

Enhancing physical and cognitive function in older adults through walking & resistance exercise: Korean national aging project randomized controlled study.

Background

Methods

Results

Conclusion

Publications

Enhancing physical and cognitive function in older adults through walking & resistance exercise: Korean national aging project randomized controlled study.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets