UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058701
Receipt number R000067106
Scientific Title Effects of Intradialytic Resistance Exercise on Alertness and Executive Function in Outpatients Undergoing Maintenance Hemodialysis
Date of disclosure of the study information 2025/08/07
Last modified on 2026/10/31 14:47:35

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Basic information

Public title

Effects of Intradialytic Resistance Exercise on Alertness and Executive Function in Outpatients Undergoing Maintenance Hemodialysis

Acronym

Intervention trial

Scientific Title

Effects of Intradialytic Resistance Exercise on Alertness and Executive Function in Outpatients Undergoing Maintenance Hemodialysis

Scientific Title:Acronym

Randomized controlled trial

Region

Japan


Condition

Condition

chronic renal failure

Classification by specialty

Cardiology Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To clarify the effect of resistance exercise intervention during dialysis treatment on executive function in outpatient maintenance dialysis patients.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Frontal Assessment Battery (FAB) (90 days after the start of the resistance exercise intervention during dialysis)

Key secondary outcomes

The following measures at 90 days
(between-group comparison adjusted for
baseline values):
1. PVT median reaction time (key
secondary outcome)
2. MNA-SF score (key secondary
outcome)
Supplementary measures: Epworth
Sleepiness Scale (ESS), International
Physical Activity Questionnaire-Short
Form (IPAQ-S), serum albumin,
cholinesterase, NT-proBNP, and exercise
adherence rate in the exercise group


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Behavior,custom

Interventions/Control_1

Exercise group: In addition to usual
hemodialysis care, participants perform
intradialytic resistance exercise within the
first 2 hours of dialysis, 3 times per week
for approximately 20 minutes per session,
for 90 days. Target intensity is a Borg
rating of perceived exertion of 13
(somewhat hard).
At sites A and B, participants perform six
lower-limb and gluteal resistance
exercises using elastic bands of four
resistance levels; at sites C and D, they
perform body-weight resistance exercises
(lower limbs, gluteal, trunk) while
following a video displayed on the
bedside monitor. Load and repetitions are
individually set by a physical therapist on
the first day to achieve moderate
intensity, with supervision by a physical
therapist as needed.

Interventions/Control_2

Control group: Participants continue usual
hemodialysis care for 90 days without any
study exercise program (no intradialytic
exercise is provided as usual care at any
participating site).

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

The study included 70 outpatients undergoing maintenance dialysis who provided informed, voluntary written consent. Inclusion criteria were: being an outpatient on maintenance dialysis capable of walking, and having no motor impairment in the limb not used for the vascular access (non-shunt limb).

Key exclusion criteria

Exclusion criteria included severe dementia or other conditions that would make it difficult for the patient to understand verbal instructions or written descriptions of the exercise regimen.

Target sample size

70


Research contact person

Name of lead principal investigator

1st name Yusuke
Middle name
Last name Nishida

Organization

International University of Health and Welfare

Division name

School of Health Sciences at Narita

Zip code

286-8686

Address

4-3, Kozunomori, Narita-shi,Chiba-ken.

TEL

0476-20-7701

Email

yuusuken@iuhw.ac.jp


Public contact

Name of contact person

1st name Ryohei
Middle name
Last name Yamaguchi

Organization

Seijinkai Medical Corporation Mihama Hospital

Division name

rehabilitation department

Zip code

261-0013

Address

1-1-5 Utase, Mihama-ku, Chiba City, Chiba Prefecture

TEL

043-271-2288

Homepage URL


Email

24s3061@g.iuhw.ac.jp


Sponsor or person

Institute

Seijinkai Medical Corporation Mihama Hospital

Institute

Department

Personal name



Funding Source

Organization

International University of Health and Welfare

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Seijinkai Medical Corporation Mihama Hospital

Address

1-1-5 Utase, Mihama-ku, Chiba City, Chiba Prefecture

Tel

043-271-2288

Email

24s3061@g.iuhw.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 08 Month 07 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

70

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

The study included 70 participants (35 in the exercise intervention group and 35 in the control group). The mean age was 76.44 +- 7.91 years; 42 participants (60.0%) were male, 29 (41.4%) had diabetes as the primary underlying disease, and the median duration of dialysis was 101 months. Baseline (pre-intervention) values were as follows: FAB score, 13.31 +- 2.43; PVT median reaction time, 419 ms; and MNA-SF score, 11. There were no significant differences between the groups regarding baseline characteristics or pre-intervention assessment scores.

Participant flow

Of 99 patients analyzed in the preceding
cross-sectional study, 29 were excluded
because they declined to participate or
could not provide consent due to
hospitalization or complications. The
remaining 70 patients provided written
consent, completed baseline assessment,
and were randomly allocated to the
exercise group (n = 35) or the control
group (n = 35) by stratified block
randomization by age (<80 / >=80 years).
All participants in both groups completed
the 90-day assessment with no dropouts
or missing data. All 70 participants were
analyzed according to their allocated
group.

Adverse events

No exercise-related
adverse events were observed during
the study period.

Outcome measures

Primary outcome: FAB
Key secondary outcomes: PVT median
reaction time, MNA-SF
Supplementary measures: ESS, IPAQ-S,
serum albumin, cholinesterase, NT-
proBNP, exercise adherence rate

Plan to share IPD

No

IPD sharing Plan description

There is no plan to share individual
participant data.


Progress

Recruitment status

Completed

Date of protocol fixation

2025 Year 08 Month 07 Day

Date of IRB

2016 Year 11 Month 14 Day

Anticipated trial start date

2025 Year 05 Month 01 Day

Last follow-up date

2026 Year 10 Month 01 Day

Date of closure to data entry

2026 Year 11 Month 01 Day

Date trial data considered complete

2026 Year 12 Month 01 Day

Date analysis concluded

2026 Year 12 Month 31 Day


Other

Other related information



Management information

Registered date

2025 Year 08 Month 05 Day

Last modified on

2026 Year 10 Month 31 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000067106