Abstract:
:Over the last few decades, considerable evidence shows that greater levels of aerobic exercise and cardiovascular fitness benefit cognitive performance. However, the degree to which free-living activity in community settings is related to cognitive performance remains unclear, particularly in older adults vulnerable to disability. Also, it is unknown whether the manner in which daily physical activity (PA) and sedentary time are accumulated throughout the day is associated with cognition. Cross-sectional associations between accelerometer-characterized PA and sedentary patterns and cognitive performance were examined in 1,274 mobility-limited older adults. Percent time spent in various bout lengths of PA (≥1, ≥2, and ≥5 min) and sedentary (≥1, ≥30, and ≥60 min) was defined as the number of minutes registered divided by total wear time × 100. Percent time was then tertiled for each bout length. Multiple linear regression models were used to estimate the associations between accelerometer bout variables and separate cognitive domains that included processing speed (Digit Symbol Coding; DSC), immediate and delayed recall (Hopkins Verbal Learning Test; HVLT), information processing and selective attention (Flanker), working memory (n-back), reaction time (switch and non-switch reaction time), and a composite score that averaged results from all cognitive tests. After adjusting for demographics, behavioral factors, and morbid conditions, more time spent in PA was associated with higher DSC for all bout lengths (p < 0.03 for all). Higher PA was associated with higher HVLT and global cognition scores but only for longer bout lengths (p < 0.05 for all). The association was largely driven by participants who spent the lowest amount of time performing activity while awake (p < 0.04). An inverse linear relationship was observed between total sedentary time and DSC (p = 0.02), but not for other measures of cognition. These results suggest that, while higher PA was associated with higher cognitive performance, PA's association with memory was sensitive to bout duration. The time, but not the manner, spent in sedentary behaviors showed a minor association with executive function. Further research is warranted to characterize longitudinal changes in daily activity and sedentary patterns as potential biophysical markers of cognitive status in older adults.
journal_name
Front Aging Neuroscijournal_title
Frontiers in aging neuroscienceauthors
Wanigatunga AA,Manini TM,Cook DR,Katula J,Fielding RA,Kramer AF,Verghese J,Rapp SR,Sink KM,King AC,Buford TW,Anton S,Nadkarni N,Jennings JM,Reid K,Espeland MA,Gill TM,Pahor M,Nocera JRdoi
10.3389/fnagi.2018.00341subject
Has Abstractpub_date
2018-11-15 00:00:00pages
341issn
1663-4365journal_volume
10pub_type
杂志文章abstract::Regular physical activity is considered one of the most important factors for lifestyle, for maintaining good health in older ages and increasing life expectancy. Dance is considered an activity that involves coordinating movements with music, as well as brain activation because it is constantly necessary to learn and...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2019.00075
更新日期:2019-04-05 00:00:00
abstract::Age-related cognitive decline has been linked to a diverse set of neurobiological mechanisms, including bidirectional changes in proteins critical for neuron function. Importantly, these alterations are not uniform across the brain. For example, the hippocampus (HPC) and prefrontal cortex (PFC) show distinct patterns ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2018.00391
更新日期:2018-12-03 00:00:00
abstract::Background: Leisure-time physical activity (PA) has been proposed as a protective factor against dementia, whereas psychological distress is associated with an increased risk of dementia. We investigated the associations of leisure-time PA and psychological distress with dementia-related mortality, and whether the ass...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2018.00151
更新日期:2018-05-25 00:00:00
abstract::Abnormalities and impairments in axonal transport are suggested to strongly contribute to the pathological alterations underlying AD. The exact mechanisms leading to axonopathy are currently unclear, but it was recently suggested that APP expression itself triggers axonal degeneration. We used APP transgenic mice and ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2014.00139
更新日期:2014-06-27 00:00:00
abstract::Amyloid-beta (Aβ) in Alzheimer's disease (AD) appeared to be a promising target for disease-modifying therapeutic strategies like passive immunotherapy with anti-Aβ monoclonal antibodies (mAbs). Biochemical markers in cerebrospinal fluid (CSF) include alterations of Aβ that allow the diagnosis of AD. Biomarker strateg...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2013.00025
更新日期:2013-07-02 00:00:00
abstract::The molecular substrate of age-associated cognitive decline (AACD) is still elusive. Evidence indicates that AACD is related to synaptic impairment in hippocampus, but different hippocampal regions play different roles, with the dorsal hippocampus (DH) associated to spatial learning, and the ventral hippocampus (VH) c...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2018.00091
更新日期:2018-04-04 00:00:00
abstract::Neurons with histopathological changes consistent with granulovacuolar degeneration (GVD) were found in brain sections from aged cynomolgus monkeys (Macaca fascicularis) with clinical and pathological signs of cognitive aging. To our knowledge, this is the first reported description of GVD in non-human primates. GVD-l...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2019.00050
更新日期:2019-03-07 00:00:00
abstract:Objective:This study was aimed to explore the effects of dietary nutrients on cognitive function among the middle-aged and elderly populations. Methods:A prospective cohort study of 1,385 middle-aged and elderly people was conducted from January 2014 to December 2017. Dietary nutrients were assessed according to the f...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2019.00226
更新日期:2019-08-29 00:00:00
abstract::Neuromodulation techniques such as deep brain stimulation (DBS) are a promising treatment for memory-related disorders including anxiety, addiction, and dementia. However, the outcomes of such treatments appear to be somewhat paradoxical, in that these techniques can both disrupt and enhance memory even when applied t...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2020.00273
更新日期:2020-09-14 00:00:00
abstract::Alzheimer's disease (AD) is associated with cognitive and non-cognitive symptoms for which there are currently no effective therapies. We have previously reported that cotinine, a natural product obtained from tobacco leaves, prevented memory loss and diminished amyloid-β (Aβ) plaque pathology in transgenic 6799 mice ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2014.00162
更新日期:2014-07-23 00:00:00
abstract::Background: Hypersensitivity to general anesthetics may predict poor postoperative outcomes, especially among the older subjects. Therefore, it is essential to elucidate the mechanism underlying hypersensitivity to volatile anesthetics in the aging population. Given the fact that isoflurane sensitivity increases with ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2020.583542
更新日期:2020-12-03 00:00:00
abstract::Objective: Increased variability in cognition with age has been argued as an indication of pathological processes. Focusing on early detection of neurodegenerative disorders, we investigated variability in cognition in healthy middle-aged adults. In order to understand possible determinants of this variability, we als...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2017.00188
更新日期:2017-06-09 00:00:00
abstract::The ensuing upward shift in demographic distribution due to the increase in life expectancy has resulted in a rising prevalence of Alzheimer's disease (AD). The heavy public burden of AD, along with the urgent to prevent and treat the disease before the irreversible damage to the brain, calls for a sensitive and speci...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnagi.2018.00188
更新日期:2018-06-22 00:00:00
abstract::Dietary folic acid deficiency induced early hearing loss in C57BL/6J mice after 2-months, corroborates the epidemiological association previously described between vitamin deficiency and this sensory impairment. However, this strain is prone to early hearing loss, and hence we decided to analyze whether the effects ex...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2016.00209
更新日期:2016-08-31 00:00:00
abstract::Background: Juvenile amyotrophic lateral sclerosis (jALS) is a rare form of ALS with an onset age of less than 25 years and is frequently thought to be genetic in origin. DDHD1 gene mutations have been reported to be associated with the SPG28 subtype of autosomal recessive HSP but have never been reported in jALS pati...
journal_title:Frontiers in aging neuroscience
pub_type:
doi:10.3389/fnagi.2016.00291
更新日期:2016-12-06 00:00:00
abstract::Although older adults exhibit normal accuracy in performing word retrieval and generation (lexical production; e.g., object naming), they are generally slower in responding than younger adults. To maintain accuracy, older adults recruit compensatory mechanisms and strategies. We focused on two such possible compensato...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2017.00125
更新日期:2017-05-09 00:00:00
abstract::The semantic verbal fluency task is broadly used in the neuropsychological assessment of elderly subjects. Even some studies have identified differences in verbal fluency clustering and switching measures between subjects with normal aging and a clinical condition such as mild cognitive impairment (MCI) and Alzheimer'...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2014.00141
更新日期:2014-07-01 00:00:00
abstract::Background: The rs405509 polymorphism ofthe apolipoprotein E (APOE) promoter is related to Alzheimer'sdisease (AD). The T/T allele of rs405509 is known to decrease the transcription of the APOE gene and lead to impairments in specific brain structural networks with aging; thus, it is an important risk factor for AD. H...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2020.00183
更新日期:2020-06-30 00:00:00
abstract::Current society has to deal with major challenges related to our constantly increasing population of older adults. Since, motor performance generally deteriorates at older age, research investigating the effects of different types of training on motor improvement is particularly important. Here, we tested the effects ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2015.00157
更新日期:2015-08-11 00:00:00
abstract::Background: Due to the lack of objective measures for assessing tinnitus, its clinical evaluation largely relies on the use of questionnaires and psychoacoustic tests. A global assessment of tinnitus burden would largely benefit from holistic approaches that not only incorporate measures of tinnitus but also take into...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2016.00272
更新日期:2016-11-22 00:00:00
abstract::Background and Purpose: Olfactory dysfunction (OD) is a common non-motor symptom of Parkinson disease (PD). However, the relationship between OD and neuropathologic proteins in cerebrospinal fluid (CSF) from PD patients remains unclear. Methods: 166 PD patients were included in the study. Overall olfactory function wa...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2020.594324
更新日期:2020-12-11 00:00:00
abstract:BACKGROUND:A physically active lifestyle has the potential to prevent cognitive decline and dementia, yet the optimal type of physical activity/exercise remains unclear. Dance is of special interest as it complex sensorimotor rhythmic activity with additional cognitive, social, and affective dimensions. OBJECTIVES:To ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2016.00026
更新日期:2016-02-22 00:00:00
abstract::The acquisition and retention of motor skills is necessary for everyday functioning in the elderly and may be critical in the context of motor rehabilitation. Recent studies indicate that motor training closely followed by sleep may result in better engagement of procedural ("how to") memory consolidation processes in...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2019.00321
更新日期:2019-11-22 00:00:00
abstract::Parkinson's disease (PD) is the second most prevalent neurodegenerative disease in ageing individuals. It is now clear that genetic susceptibility and environmental factors play a role in disease etiology and progression. Because environmental factors are involved with the majority of the cases of PD, it is important ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnagi.2014.00036
更新日期:2014-03-07 00:00:00
abstract::Objectives: To explore the transfer effects of cognitive training on working memory among older Chinese adults with mild cognitive impairment (MCI). Methods: Sixty-two MCI participants aged more than 60 years old were recruited by holding recruitment sessions in communities in China [33 for cognitive training, and 29 ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2019.00212
更新日期:2019-08-14 00:00:00
abstract::Measurement of the dynamic coupling between spontaneous Blood Oxygenation Level Dependent (BOLD) and cerebral blood flow (CBF) fluctuations has been recently proposed as a method to probe resting-state brain physiology. Here we investigated how the dynamic BOLD-CBF coupling during resting-state is affected by aging. F...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2018.00115
更新日期:2018-04-23 00:00:00
abstract::Background and Purpose: This study aimed to investigate the association between insulin resistance (IR) and the overall cerebral small vessel disease (CSVD) burden. Methods: We recruited elderly, nondiabetic, healthy subjects prospectively. The overall effect of CSVD on the brain was described by a validated CSVD scor...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2019.00127
更新日期:2019-06-12 00:00:00
abstract::It is assumed that DNA sequences are conserved in the diverse cell types present in a multicellular organism like the human being. Thus, in order to compare the sequences in the genome of DNA from different individuals, nucleic acid is commonly isolated from a single tissue. In this regard, blood cells are widely used...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnagi.2014.00323
更新日期:2014-11-25 00:00:00
abstract::Alzheimer's disease (AD) is characterized by a progressive cognitive decline and believed to be driven by the self-aggregation of amyloid-β (Aβ) peptide into oligomers and fibrils that accumulate as senile plaques. It is widely accepted that microglia-mediated inflammation is a significant contributor to disease patho...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2017.00277
更新日期:2017-08-31 00:00:00
abstract::Individuals with Parkinson's disease (PD) mainly suffer from motor impairments which increase the risk of falls and lead to a decline of quality of life. Several studies investigated the long-term effect of dance for people with PD. The aims of the present study were to investigate (i) the short-term effects of dance ...
journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2011.00014
更新日期:2011-10-10 00:00:00