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BMC Neurology Nov 2023Fatigue is the most disabling symptom for individuals with multiple sclerosis (MS), which can significantly affect postural control (PC) by impairing the ability of the...
BACKGROUND
Fatigue is the most disabling symptom for individuals with multiple sclerosis (MS), which can significantly affect postural control (PC) by impairing the ability of the central nervous system to modulate sensory inputs and coordinate motor responses. This systematic review aimed to investigate the effect of fatigue on PC in individuals with MS..
METHODS
This systematic review is reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline and registered in PROSPERO with ID CRD42022376262. A systematic search was performed in the Web of Science, PubMed, Scopus, and Google Scholar until January 2023, and a manual search was performed using the reference lists of included studies. Two authors independently selected the studies, extracted data, and evaluated their methodological quality using the Downs and Black checklist. The process was later discussed with a third author..
RESULTS
Five studies were included in this review, of which consistent evidence investigating a direct relationship between fatigue and PC in individuals with MS. All the studies reported negative effects on PC. Four studies employed walking tests as their primary protocol for inducing fatigue, while one study implemented a strength testing protocol for both legs, serving as a fatigue-inducing activity.
CONCLUSIONS
The evidence suggests that individuals with MS may experience PC deficits due to fatigue. However, the present body of literature exhibits limitations regarding its quality and methodology. Gender differences, balance, fatigue task, and muscle function are essential factors that need to be considered when investigating the relationship between fatigue and PC deficits in MS. Further high-quality research is necessary to comprehend the complex interplay between MS-related fatigue and PC deficits after physical activity.
Topics: Humans; Exercise; Multiple Sclerosis; Fatigue; Postural Balance
PubMed: 37978449
DOI: 10.1186/s12883-023-03464-4 -
Physiology & Behavior Oct 2023Spontaneously hypertensive rats (SHRs) are widely accepted for modeling essential hypertension and Attention deficit hyperactivity disorder (ADHD). However, data...
Spontaneously hypertensive rats (SHRs) are widely accepted for modeling essential hypertension and Attention deficit hyperactivity disorder (ADHD). However, data concerning central nervous system changes associated with behavioral responses of this strain and usage of Wistar Kyoto (WKY) rats as controls are confounding. The objective of the present study was to assess the impact of anxiety and motor activity on the cognitive responses of SHRs compared to Wistar and WKY rats. In addition, the role of brain-derived neurotrophic factor (BDNF) in the hippocampus on cognitive behavior and seizure susceptibility in the three strains was evaluated. In Experiment#1, SHR demonstrated impulsive responses in the novelty suppression feeding test accompanied by impaired spatial working and associative memory in the Y maze and object recognition test compared with the Wistar rat but not WKY rats. In addition, the WKY rats exhibited diminished activity compared to Wistar rats in an actimeter. In Experiment#2, the seizure susceptibility was assessed by 3-min electroencephalographic (EEG) recording after two consecutive injections of pentylenetetrazol (PTZ) (20+40 mg/kg). The WKY rats were more vulnerable to rhythmic metrazol activity (RMA) than the Wistar rats. In contrast, Wistar rats were more prone to generalized tonic-clonic seizures (GTCS) than WKY rats and SHRs. Control SHR had lower BDNF expression in the hippocampus compared to Wistar rats. However, while the BDNF levels were elevated in the Wistar and WKY rats after PTZ injection, no change in this signaling molecule was observed in the SHR in the seizure condition. The results suggest Wistar rats as a more appropriate control of SHR than WKY rats for studying memory responses mediated by BDNF in the hippocampus. The higher vulnerability to seizures in Wistar and WKY rats compared to SHR might be linked to PTZ-induced decreased expression of BDNF in the hippocampus.
Topics: Rats; Animals; Rats, Inbred SHR; Rats, Inbred WKY; Rats, Wistar; Brain-Derived Neurotrophic Factor; Anxiety; Attention Deficit Disorder with Hyperactivity; Cognition; Seizures; Motor Activity; Disease Models, Animal
PubMed: 37308045
DOI: 10.1016/j.physbeh.2023.114268 -
The International Journal of Behavioral... Jul 2023The global prevalence of insufficient physical activity (PA) was reported to be 27.5% in 2016, and there were stable levels of insufficient PA worldwide between 2001 and...
BACKGROUND
The global prevalence of insufficient physical activity (PA) was reported to be 27.5% in 2016, and there were stable levels of insufficient PA worldwide between 2001 and 2016. The global target of a 10% reduction in insufficient PA by 2025 will not be met if the trends remain. The relevant data for trends in China were still scarce. This study aimed to determine nationwide temporal trends in insufficient PA among adults in China from 2010 to 2018.
METHODS
645 903 adults aged 18 years or older were randomly selected from four nationally representative cross-sectional surveys of the China Chronic Disease and Risk Factor Surveillance conducted in 2010, 2013, 2015, and 2018. PA was measured using the Global Physical Activity Questionnaire. Temporal changes in insufficient PA prevalence and participation of domain-specific moderate- to vigorous-intensity PA (MVPA) were analyzed using logistic regression.
RESULTS
From 2010 to 2018, the age-adjusted prevalence of insufficient PA in China increased from 17.9% (95% confidence interval 16.3% to 19.5%) in 2010 to 22.3% (20.9% to 23.8%) in 2018 (P for trend < 0.001). By age group, with a significant increase in insufficient PA in adults aged 18-34 years (P for trend < 0.001), which rose more rapidly than in adults aged ≥ 35 years (P for interaction < 0.001). Insufficient PA has increased significantly among adults engaged in agriculture-related work, non-manual work, and other manual work (all P for trend < 0.05). And among the occupational groups, those engaged in agriculture-related work had the fastest increase (P for interaction = 0.01). The percentage of adults participating in work-related MVPA decreased from 79.6% (77.8% to 81.5%) to 66.8% (64.9% to 68.7%) along with a decrease in time spent on work-related MVPA, while percentages of adults participating in recreation-related MVPA increased from 14.2% (12.5% to 15.9%) to 17.2% (16.0% to 18.4%) (all P for trend < 0.05).
CONCLUSIONS
Among Chinese adults, an increasing trend was found in insufficient PA from 2010 to 2018, with more than one-fifth of adults failing to achieve the recommendation of adequate PA. More targeted PA promotion strategies should be developed to improve population health.
Topics: Humans; Adult; Infant, Newborn; Motor Activity; Cross-Sectional Studies; Exercise; Risk Factors; China
PubMed: 37460936
DOI: 10.1186/s12966-023-01470-w -
PloS One 2023Although physical activity (PA) has been recognized as a favourable factor in the prevention of various diseases, including certain forms of cancer, the relationship... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Although physical activity (PA) has been recognized as a favourable factor in the prevention of various diseases, including certain forms of cancer, the relationship between PA and gastric cancer (GC) is not yet fully understood. This study aims to provide data from a pooled analysis of case-control studies within the Stomach cancer Pooling (StoP) Project to estimate the association between leisure-time PA and the occurrence of GC.
METHODS
Six case-control studies from StoP project collected data on leisure-time PA, for a total of 2,343 cases and 8,614 controls. Subjects were classified into three leisure-time PA categories, either none/low, intermediate or high, based on study-specific tertiles. We used a two-stage approach. Firstly, we applied multivariable logistic regression models to obtain study-specific odds ratios (ORs) and corresponding 95% confidence intervals (CIs) then, we used a random-effect models to obtain pooled effect estimates. We performed stratified analyses according to demographic, lifestyle and clinical covariates.
RESULTS
The meta-analysis showed ORs of GC with no significant differences between intermediate vs low and high vs low PA level (OR 1.05 [95%CI 0.76-1.45]; OR 1.23 [95%CI 0.78-1.94], respectively). GC risk estimates did not strongly differ across strata of selected covariates except for age ≤ 55 years old (high vs low level: OR 0.72 [95%CI 0.55-0.94]) and for control population-based studies (high vs low level: OR 0.79 [95%CI 0.68-0.93]).
CONCLUSIONS
No association was found between leisure time PA and GC, apart from a slight suggestion of decreased risk below age 55 and in control population-based studies. These results may reflect specific characteristics of GC at a younger age, or the presence of a cohort effect mediating and interacting with socioeconomic determinants of GC The different distribution of PA levels among hospitalized controls could have led to an underestimated effect of PA on GC risk.
Topics: Humans; Middle Aged; Stomach Neoplasms; Motor Activity; Exercise; Leisure Activities
PubMed: 37437057
DOI: 10.1371/journal.pone.0286958 -
Child: Care, Health and Development Nov 2023Children with specific learning disorders (SLD) may have issues in cognitive, motor, and academic skills, affecting their mental health and level of participation in... (Review)
Review
BACKGROUND
Children with specific learning disorders (SLD) may have issues in cognitive, motor, and academic skills, affecting their mental health and level of participation in academic and nonacademic activities at school and in everyday life. Research shows that perceptual-motor (PM) exercises and physical activities can improve the cognitive and motor skills of typically developing children. To use PM exercises as an intervention in clinical practice for children with learning disorders, or to use it in future research, it seems necessary to discuss and summarize the existing documents in this group of children.
OBJECTIVES
We aimed to appraise the extent, and the quality of studies about PM interventions for enhancing cognitive, motor, and academic skills in children with learning disorders.
METHODS
The search was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Articles published between January 2000 and June 2022 were searched in the following scientific databases: PubMed, Medline, Scopus, Web of Science, Cochrane library, Science direct, and Google Scholar. The study eligibility criteria were previously established according to the PICOS model. The Physiotherapy Evidence Database (PEDro) scale was used to assess the methodological quality of the studies, and the Cochrane Collaboration tool (ROB2) was used to assess the risk of bias.
RESULTS
The initial search yielded 2160 studies among which 10 studies were systematically reviewed. The total number of participants was 483 children (intervention: 251; control: 232). Findings showed significant improvements in cognitive skills (n = 7/8) such as working memory, attention, and information processing speed. In addition, studies showed that PM and physical activity interventions could increase academic performance (n = 4/5) and motor skills (n = 5/5) in children with LD. Results regarding the mental health effects of PM exercises (n = 1/3) are few in number and contradicting.
DISCUSSION
PM exercises may positively affect cognitive, motor, and academic skills in children with SLD; However, due to the small number of studies, fair methodological quality, and high risk of bias, caution should be taken when interpreting the results.
Topics: Child; Humans; Exercise; Cognition; Academic Performance; Learning Disabilities; Schools; Motor Skills
PubMed: 36872844
DOI: 10.1111/cch.13111 -
Journal of Aging and Physical Activity Oct 2023This study investigated the direct and indirect associations of physical activity and sedentary behavior with survival time in older adults. Prospective population-based...
This study investigated the direct and indirect associations of physical activity and sedentary behavior with survival time in older adults. Prospective population-based cohort study used exploratory survey-type methods and physical performance tests in 319 adults aged ≥60 years. Trajectory diagrams were used to represent the initial hypothetical and final models with the relationships of independent, mediating, and dependent variables. Physical activity was indirectly associated with survival time and was mediated by instrumental activities of daily living and functional performance. In contrast, instrumental activities of daily living, functional performance, the number of hospitalizations, and medications mediated the association between duration of sedentary behavior and survival time. The explanatory power of the final model was 19%. Future efforts should focus on increasing the participation and adherence of older adults to exercise programs to improve their physical functions and general health, which may increase their health period and, consequently, their survival time.
Topics: Humans; Aged; Cohort Studies; Sedentary Behavior; Activities of Daily Living; Prospective Studies; Exercise
PubMed: 36870348
DOI: 10.1123/japa.2022-0125 -
Lancet (London, England) Nov 2023Dementia Actif provides group physical activity opportunities to support and enhance the quality of life for people living with dementia (PLWD) and their carers. The... (Review)
Review
BACKGROUND
Dementia Actif provides group physical activity opportunities to support and enhance the quality of life for people living with dementia (PLWD) and their carers. The activities offer include physical exercise classes, Boccia league, online activities, and various clubs (eg, gardening). The overall aim of this study was to evaluate the Dementia Actif programme delivered in one local authority area in North Wales, UK.
METHODS
A mixed-methods evaluation of Dementia Actif focused on four key workstreams (WS). Data collection took place between January and June, 2023. WS1 consisted of a rapid literature review. The search included articles and grey literature published between 2012 and 2022. All study designs were included, with keywords limited to the English Language. CINAHL (EBSCO), PsycInfo, ProQuest, PubMed, Web of Science were searched. WS2 consisted of interviews and focus groups with professional stakeholders (n=32) from Health, Social Care, and Third Sector services who refer PLWD to Dementia Actif, within one local authority area in North Wales. WS3 consisted of researcher observation of activities delivered by the Dementia Actif Service , including exercise classes and wellbeing activities within leisure centres across the local authority area. WS4 consisted of interviews with PLWD and their carers (n=12) who accessed Dementia Actif, including analysing specific case studies.
FINDINGS
Following the screening process, the final literature sample included 18 papers. The sample papers, from the UK, USA, and Canada, were reviewed and analysed to inform the findings. The findings from the rapid literature review showed a lack of global evidence of approaches focused on measuring social interaction, wellbeing, and building on community assets to address the needs of PLWD and their unpaid carers. Results from SW2-WS4 indicated the positive impact of an active/wellbeing model for supporting PLWD and their carers, in particular the use of preventive community-based resources to support unpaid carers and reduce the need for admission to acute secondary and residential care.
INTERPRETATION
The analysis indicates the benefits of low-cost social activities on overall wellbeing outcomes, including giving PLWD and their carers voice, choice, and control over their own wellbeing outcomes to connect them with their community. This evaluation argues the potential to use Dementia Actif approaches to address complex needs. However, this was based on a small sample, which might impact on the broader applicability of the findings.
FUNDING
Gwynedd County Council, North Wales.
Topics: Humans; Caregivers; Dementia; Exercise; Hospitalization; Quality of Life
PubMed: 37997078
DOI: 10.1016/S0140-6736(23)02136-0 -
Physical Therapy Dec 2023The purposes of this study were to determine the association between physical activity (PA) behavior and global cognitive function 3 months after stroke and to explore...
OBJECTIVE
The purposes of this study were to determine the association between physical activity (PA) behavior and global cognitive function 3 months after stroke and to explore the role of physical capacity as a mediating factor.
METHODS
Participants with stroke were successively recruited at 5 different hospitals in Norway. PA was measured using accelerometers, with a follow-up period of 7 consecutive days, and global cognitive function was assessed using the Montreal Cognitive Assessment (MoCA). The general pattern of PA and the percentage of participants adhering to World Health Organization PA recommendations (at least 150 minutes of moderate-intensity aerobic PA per week) were investigated using descriptive statistics. Multiple regression and mediator analyses were used to examine the relationship between PA behavior and MoCA scores; physical capacity, measured with the Short Physical Performance Battery, served as the mediating variable.
RESULTS
A total of 193 women (42.6%) and 260 men (57.4%) with a median age of 73.7 years (25th and 75th percentiles = 65.8 and 80.4, respectively) and a median MoCA score of 25 points (25th and 75th percentiles = 22 and 27, respectively) were included. Mean total time spent walking at moderate intensity was 251.7 (SD = 164.6) min/wk (mean bout length = 20.9 [SD = 7.3] seconds), which indicated 69.3% adherence to World Health Organization guidelines. With each point decrease in the MoCA score, there was an expected 8.6% increase in the odds of nonadherence to PA recommendations. Physical capacity was identified as an important mediating factor, explaining the strength of the association between cognition and PA behavior.
CONCLUSIONS
In contrast to previous research, in the present study, most participants adhered to the updated global PA guidelines. However, people who had survived stroke and had reduced cognitive function were at higher risk of inactivity, an association mediated by physical capacity.
IMPACT
A better understanding of the association between cognition and PA behavior after stroke might help for developing more targeted early-onset interventions.
Topics: Male; Humans; Female; Aged; Motor Activity; Cognition; Stroke; Walking; Mental Status and Dementia Tests
PubMed: 37440440
DOI: 10.1093/ptj/pzad092 -
Journal of Human Evolution Apr 2024Bipedal locomotion was a major functional change during hominin evolution, yet, our understanding of this gradual and complex process remains strongly debated. Based on...
Bipedal locomotion was a major functional change during hominin evolution, yet, our understanding of this gradual and complex process remains strongly debated. Based on fossil discoveries, it is possible to address functional hypotheses related to bipedal anatomy, however, motor control remains intangible with this approach. Using comparative models which occasionally walk bipedally has proved to be relevant to shed light on the evolutionary transition toward habitual bipedalism. Here, we explored the organization of the neuromuscular control using surface electromyography (sEMG) for six extrinsic muscles in two baboon individuals when they walk quadrupedally and bipedally on the ground. We compared their muscular coordination to five human subjects walking bipedally. We extracted muscle synergies from the sEMG envelopes using the non-negative matrix factorization algorithm which allows decomposing the sEMG data in the linear combination of two non-negative matrixes (muscle weight vectors and activation coefficients). We calculated different parameters to estimate the complexity of the sEMG signals, the duration of the activation of the synergies, and the generalizability of the muscle synergy model across species and walking conditions. We found that the motor control strategy is less complex in baboons when they walk bipedally, with an increased muscular activity and muscle coactivation. When comparing the baboon bipedal and quadrupedal pattern of walking to human bipedalism, we observed that the baboon bipedal pattern of walking is closer to human bipedalism for both baboons, although substantial differences remain. Overall, our findings show that the muscle activity of a non-adapted biped effectively fulfills the basic mechanical requirements (propulsion and balance) for walking bipedally, but substantial refinements are possible to optimize the efficiency of bipedal locomotion. In the evolutionary context of an expanding reliance on bipedal behaviors, even minor morphological alterations, reducing muscle coactivation, could have faced strong selection pressure, ultimately driving bipedal evolution in hominins.
Topics: Animals; Humans; Papio; Walking; Hominidae; Locomotion; Muscles; Biomechanical Phenomena
PubMed: 38401300
DOI: 10.1016/j.jhevol.2024.103513 -
The International Journal of Behavioral... Nov 2023To determine rates of compliance (i.e., supervised intervention attendance) and adherence (i.e., unsupervised physical activity completion) to high-intensity interval... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
To determine rates of compliance (i.e., supervised intervention attendance) and adherence (i.e., unsupervised physical activity completion) to high-intensity interval training (HIIT) among insufficiently active adults and adults with a medical condition, and determine whether compliance and adherence rates were different between HIIT and moderate-intensity continuous training (MICT).
METHODS
Articles on adults in a HIIT intervention and who were either insufficiently active or had a medical condition were included. MEDLINE, EMBASE, PsychINFO, SPORTDiscus, CINAHL, and Web of Science were searched. Article screening and data extraction were completed by two independent reviewers. Risk of bias was assessed using RoB 2.0 or ROBINS-I. Meta-analyses were conducted to discern differences in compliance and adherence between HIIT vs. MICT. Sensitivity analyses, publication bias, sub-group analyses, and quality appraisal were conducted for each meta-analysis.
RESULTS
One hundred eighty-eight unique studies were included (n = 8928 participants). Compliance to HIIT interventions averaged 89.4% (SD:11.8%), while adherence to HIIT averaged 63% (SD: 21.1%). Compliance and adherence to MICT averaged 92.5% (SD:10.6%) and 68.2% (SD:16.2%), respectively. Based on 65 studies included in the meta-analysis, compliance rates were not different between supervised HIIT and MICT interventions [Hedge's g = 0.015 (95%CI: - 0.088-0.118), p = .78]. Results were robust and low risk of publication bias was detected. No differences were detected based on sub-group analyses comparing medical conditions or risk of bias of studies. Quality of the evidence was rated as moderate over concerns in the directness of the evidence. Based on 10 studies, adherence rates were not different between unsupervised HIIT and MICT interventions [Hedge's g = - 0.313 (95%CI: - 0.681-0.056), p = .096]. Sub-group analysis points to differences in adherence rates dependent on the method of outcome measurement. Adherence results should be interpreted with caution due to very low quality of evidence.
CONCLUSIONS
Compliance to HIIT and MICT was high among insufficiently active adults and adults with a medical condition. Adherence to HIIT and MICT was relatively moderate, although there was high heterogeneity and very low quality of evidence. Further research should take into consideration exercise protocols employed, methods of outcome measurement, and measurement timepoints.
REGISTRATION
This review was registered in the PROSPERO database and given the identifier CRD42019103313.
Topics: Adult; Humans; High-Intensity Interval Training; Exercise
PubMed: 37990239
DOI: 10.1186/s12966-023-01535-w