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

Area of Science:

• Nephrology
• Neuroscience
• Gerontology

Background:

• Patients undergoing hemodialysis (HD) often experience cognitive and physical impairments.
• These deficits are linked to age, comorbidities, and the rigors of HD treatment.
• Functional capacity is crucial for maintaining independence and quality of life in HD patients.

Purpose of the Study:

• To investigate the impact of a 12-week integrated cognitive and physical training program on functional capacity in HD patients.
• To assess changes in cognitive function and mobility following the intervention.

Main Methods:

• A single-blind, randomized controlled trial involving 44 HD patients.
• Participants were assigned to either an experimental (EXP) group (intradialytic cycling and cognitive training) or a control (CON) group (standard HD).
• Cognitive function (Trail Making Test) and mobility (Timed Up and Go tests) were assessed pre- and post-intervention.

Main Results:

• The EXP group showed significant improvements in cognitive function, indicated by reduced TMT completion times (TMTA: -3.6s, P=0.006; TMTB: -14.0s, P<0.001).
• The EXP group also demonstrated enhanced mobility (TUG: -0.8s, P<0.001) and cognitive-motor performance (TUG-dual: -1.0s, P<0.001).
• The CON group experienced a decline in cognitive function and showed no significant changes in mobility.

Conclusions:

• A 12-week combined cognitive and physical training program effectively enhances cognitive function and mobility in HD patients.
• Integrated interventions can counteract functional decline and improve the quality of life for individuals on HD.
• Further research with larger cohorts and active controls is recommended to validate these findings.