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Randomized Controlled Trial of Intradialytic Cognitive and Physical Training to Enhance Functional Capacity.

ABSTRACT: Hemodialysis (HD) patients frequently experience cognitive and physical impairments due to various factors, including age, comorbidities, and the demanding nature of the treatment. This study explores the impact of a 12 week integrated cognitive and physical training program on the functional capacity of patients on HD. A single blind, randomized controlled trial was conducted with 44 patients on HD. Participants were divided into an experimental (EXP) group that received a combined intervention of intradialytic cycling and cognitive training, and a control (CON) group receiving standard HD treatment. The Trail Making Test (TMT), Timed Up and Go (TUG) test, and TUG dual task test (TUG-dual) were conducted before and after the intervention. The EXP group demonstrated significant improvements in cognitive function, as evidenced by decreased TMT completion times (TMTA: -3.6 s, P = 0.006; TMTB: -14.0 s, P < 0.001; TMTB - TMTA: -10.4 s, P = 0.004). In contrast, the CON group experienced a significant decline in TMTA and TMTB. In addition, the EXP group exhibited enhanced mobility, with reduced TUG completion times (-0.8 s, P < 0.001) and improved cognitive motor performance in the TUG-dual (-1.0 s, P < 0.001), whereas the CON group showed no significant changes. This study demonstrates that a 12 week combined cognitive and physical training program during HD sessions significantly enhances cognitive function and mobility in patients on HD. These findings suggest that integrated interventions can mitigate functional declines in this population and improve their overall quality of life. Further research with larger samples and active control groups is warranted to confirm and expand upon these promising results.

SUBMITTER: Bogataj S

PROVIDER: S-EPMC11284388 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature

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Randomized Controlled Trial of Intradialytic Cognitive and Physical Training to Enhance Functional Capacity.

Bogataj Špela Š Pajek Maja M Kren Aljaž A Kurnik Mesarič Katja K Pajek Jernej J

Kidney international reports 20240415 7

<h4>Introduction</h4>Hemodialysis (HD) patients frequently experience cognitive and physical impairments due to various factors, including age, comorbidities, and the demanding nature of the treatment. This study explores the impact of a 12 week integrated cognitive and physical training program on the functional capacity of patients on HD.<h4>Methods</h4>A single blind, randomized controlled trial was conducted with 44 patients on HD. Participants were divided into an experimental (EXP) group t ...[more]

PMID: 39081752

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Project description:The prevalence of cognitive impairment in hemodialysis (HD) patients is extremely high. Despite the well-documented benefits of interventions on cognitive function, there is a widespread call for effective strategies that will show the long-term consequences in patients undergoing dialysis. The aim of this research protocol was to investigate the effect of cognitive training combined with physical exercise on cognitive function, physical performance, and frailty indicators in the HD population. We will conduct a randomized controlled intervention trial to examine the effects of a combined non-pharmacological intervention in the form of intradialytic physical exercise and intradialytic cognitive training on cognitive function, indicators of frailty, and physical performance measures in HD patients. The group of patients receiving the study intervention will be compared to the control group receiving standard HD care. The duration of the intervention will be 12 weeks. We will use sensitive instruments (cognitive domain tests) to assess cognitive functions. The primary outcome of the study at 12 weeks will be performance on the Alertness subtest of the computerized Test of Attentional Performance. Secondary study outcomes are: Performance in other domains of cognitive function (executive function, psychomotor speed, information processing efficiency, working memory, and attention), physical fitness (10 repetition sit-to-stand test, timed up and go test, handgrip strength test, spontaneous gait speed, and stork balance test), and assessment of frailty (Edmonton Frail Scale). Study outcomes will be assessed at baseline, immediately after the 12-week intervention, and 6 months after the end of the study without specific further intervention (retention effect assessment). This study will be among the first to test the synergistic effects of a uniquely designed physical exercise and cognitive training intervention on functional status in HD patients. We believe our results will contribute to dementia prevention research by demonstrating the long-term efficacy of our combined intervention. Clinical Trial Registration: ClinicalTrials.Gov, NCT05150444.

Project description:BackgroundExercise has various positive effects on hemodialysis patients. However, there is no clear evidence which type of exercise yields better results. This study aimed to determine the effects of guided functional training added to the intradialytic cycling on dialysis adequacy and biochemical parameters in hemodialysis patients. Additionally, we aimed to investigate if patients could transfer functional exercise to an unsupervised home environment and retain gained improvements.MethodsRandomization was done to a functional training intervention group (INT) (n = 20) or intradialytic cycling control group (CON) (n = 20). The INT attended a pre-dialysis functional training in the first 8 weeks. In the second 8 weeks, they performed functional exercises at unsupervised home environment on non-dialysis days. During the whole study, both groups participated in the intradialytic cycling program.ResultsBoth groups demonstrated a significant increase in dialysis adequacy (Kt/V) in the eight (0.15, 95% CI 0.06 to 0.24; p = 0.003 for INT and 0.21, 95% CI 0.11 to 0.3; p < 0.001 for CON) and the 16th study week (0.13, 95% CI 0.03 to 0.24; p = 0.017 for INT and 0.13, 95% CI 0.03 to 0.22; p = 0.013 for CON) compared to their baseline values with no significant between-group differences. At week eight, the total cholesterol was significantly lowered in the INT (- 0.34 mmol/L, 95% CI - 0.6 to - 0.07; p = 0.016) and remained lower at week 16 (- 0.32 mmol/L, 95% CI - 0.64 to - 0.01; p = 0.049) with no significant changes in the CON. Low-density lipoprotein levels in the INT were significantly reduced after 8 weeks (- 0.35 mmol/L, 95% CI - 0.64 to - 0.06; p = 0.022) and remained reduced after 16 weeks (- 0.28 mmol/L, 95% CI - 0.52 to - 0.03; p = 0.030). There were no significant differences found for albumin, high-density lipoprotein cholesterol, triglycerides, C-reactive protein, and hemoglobin in both groups.ConclusionsWe demonstrated that functional training added to intradialytic cycling improved lipid profile and dialysis adequacy. Additionally, the effects of the unsupervised, home-based program were preserved during the second study phase. This study supports the assumption that combined training is more effective compared to solely intradialytic exercise.Trial registrationClinicalTrials.Gov, NCT03334123 . Registered 07 November 2017.

Project description:ObjectiveCombined physical (PHY) and cognitive (COG) training in sequential (SEQ) and simultaneous (SIMUL) sessions may delay the progression of cognitive impairment. To date, no study has directly compared in older adults with cognitive impairment the effects of COG training, PHY training, SEQ motor-cognitive training and SIMUL motor-cognitve training on specific indices of cognitive performance and activities of daily living (ADL). The purpose of this study was to determine whether SEQ and SIMUL motor-cognitive training can improve treatment outcomes compared with PHY or COG training alone. We also aimed to compare the effects of SEQ versus SIMUL motor-cognitive training on cognitive functions and instrumental ADL (IADL) in older adults with cognitive impairment.MethodsA cluster randomized controlled trial was conducted. Eighty older adults with cognitive impairment were randomly assigned to COG, PHY, SEQ or SIMUL training groups. The intervention consisted of 90-min training sessions, totaling 36 sessions. Outcome measures were the Montreal Cognitive Assessment, three subtests of the Wechsler Memory Scale (WMS) and the Lawton IADL scale.ResultsSignificant interaction effects between group and time were found in WMS-spatial span (p = 0.04) and WMS-word lists (p = 0.041). For WMS-spatial span, the SIMUL group showed outperformed the COG (p = 0.039), PHY (p = 0.010) and SEQ groups (p = 0.017). For WMS-word lists, the SEQ group improve more than COG (p = 0.013), PHY (p = 0.030) and SIMUL (p = 0.019) groups. No significant differences were found in IADL performance among four groups (p = 0.645).ConclusionsOur study showed SEQ and SIMUL motor-cognitive training led to more pronounced improvements in visuospatial working memory or verbal memory compared with isolated COG or PHY training for community-based older adults with cognitive impairment. For enhancing effects on IADL, we suggest the use of sensitive measurement tools and context-enriched cognitive training involving real-life task demands.

Project description:BackgroundHealth care workers comprise a high-risk workgroup with respect to deterioration and early retirement. There is high prevalence of obesity and many of the workers are overweight. Together, these factors play a significant role in the health-related problems within this sector. The present study evaluates the effects of the first 3-months of a cluster randomized controlled lifestyle intervention among health care workers. The intervention addresses body weight, general health variables, physical capacity and musculoskeletal pain.Methods98 female, overweight health care workers were cluster-randomized to an intervention group or a reference group. The intervention consisted of an individually dietary plan with an energy deficit of 1200 kcal/day (15 min/hour), strengthening exercises (15 min/hour) and cognitive behavioral training (30 min/hour) during working hours 1 hour/week. Leisure time aerobic fitness was planned for 2 hour/week. The reference group was offered monthly oral presentations. Body weight, BMI, body fat percentage (bioimpedance), waist circumference, blood pressure, musculoskeletal pain, maximal oxygen uptake (maximal bicycle test), and isometric maximal muscle strength of 3 body regions were measured before and after the intervention period.ResultsIn an intention-to-treat analysis from pre to post tests, the intervention group significantly reduced body weight with 3.6 kg (p < 0.001), BMI from 30.5 to 29.2 (p < 0.001), body fat percentage from 40.9 to 39.3 (p < 0.001), waist circumference from 99.7 to 95.5 cm (p < 0.001) and blood pressure from 134/85 to 127/80 mmHg (p < 0.001), with significant difference between the intervention and control group (p < 0.001) on all measures. No effect of intervention was found in musculoskeletal pain, maximal oxygen uptake and muscle strength, but on aerobic fitness.ConclusionThe significantly reduced body weight, body fat, waist circumference and blood pressure as well as increased aerobic fitness in the intervention group show the great potential of workplace health promotion among this high-risk workgroup. Long-term effects of the intervention remain to be investigated.Trial registrationClinicalTrials.gov: NCT01015716.

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Randomized Controlled Trial of Intradialytic Cognitive and Physical Training to Enhance Functional Capacity.

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Randomized Controlled Trial of Intradialytic Cognitive and Physical Training to Enhance Functional Capacity.

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