Impact of Eccentric Training in Hypoxia With Creatine on Metabolic Control and VO2max in Patients With Type 1 Diabetes

NCT ID: NCT06345612

Last Updated: 2024-04-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

28 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-11-15

Study Completion Date

2025-07-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Exercise plays an important role in treatment of diabetes. In recent years exercise training in normobaric hypoxia is used in training programs for athletes and in rehabilitation and also commercially. The aim of the study is to assess the impact of eccentric training conducted in conditions of normobaric hypoxia or normoxia and creatine supplementation on metabolic control: profile and stability of glucose concentration, HbA1c value, hypoglycemia and insulin demand, as well as the level of muscle strength, VO2max and anthropometric parameters

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

People with type 1 diabetes benefit from training in normobaric hypoxia - the composition of the air in the training room is: 15.4% oxygen 84.7% nitrogen, which corresponds to hypoxia at an altitude of 2,500 m above sea level. Hypoxia leads to the production of the hypoxia-inducible transcription factor HIF-1, which is a regulator of the expression of many genes responsible for angiogenesis, muscle hypertrophy and glucose stability.

Before starting the10 - week training program all participants will undergo preliminary examination by a cardiologist during which echocardiography and ECG will be conducted. Then the incremental exercise test and muscle strength test will be performed to determine aerobic capacity (VO2max) and select individual weights to train for each participant.

Patients enrolled to the study will be randomly assigned to one of the following 2 groups (training under normoxia or hypoxia conditions) and subgroups (with and without supplementation of creatine).

Randomization will be carried out in blocks of 4 people.

Training sessions will take place with the assistance of a personal trainer in the Hypoxia Laboratory and the Muscle Strength and Power Laboratory of Academy of Physical Education in Katowice twice a week for 60 minutes for a period of 10 weeks. The subjects will complete the same eccentric training program with individually selected weights.

Within whole training period glucose level will be monitored via Flash Glucose Monitoring system (Free Style Libre2). During training sessions concentration of asprosin, irisin, GH, IGF-1 within blood serum immediately before and afrer the first and last training will be assessed.

At baseline and after 10 weeks blood count, ALT, AST, creatinine, GFR, HbA1c, ACR (albumin/creatinine ratio) in a random urine sample, body weight, BMI, waist-hip circumference, body composition, quality of life according to the EQ-Worksheet questionnaire, daily insulin requirement, incremental exercise test, muscle strength test (1RM) will be investigated among all participants.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Type 1 Diabetes

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

1. exercise in hypoxia with creatine supplementation

* training program in normobaric hypoxic chamber set to contain equivalent to an altitude of 2500 meters above sea level (indoor air composition: 15,4% of O2 and 84,7% of N)
* with creatine supplementation

Group Type EXPERIMENTAL

hypoxia

Intervention Type BEHAVIORAL

eccentric training program conducted within normobaric hypoxic chamber

creatine supplementation

Intervention Type DIETARY_SUPPLEMENT

5g of creatine per day

2. exercise in hypoxia without creatine supplementation

* training program in normobaric hypoxic chamber set to contain equivalent to an altitude of 2500 meters above sea level (indoor air composition: 15,4% of O2 and 84,7% of N)
* without creatine supplementation

Group Type EXPERIMENTAL

hypoxia

Intervention Type BEHAVIORAL

eccentric training program conducted within normobaric hypoxic chamber

no creatine supplementation

Intervention Type DIETARY_SUPPLEMENT

no creatine supplementation

3. exercise in normoxia with creatine supplementation

* the same training program in normoxic conditions
* with creatine supplementation

Group Type EXPERIMENTAL

normoxia

Intervention Type BEHAVIORAL

eccentric training program conducted within normoxic conditions

creatine supplementation

Intervention Type DIETARY_SUPPLEMENT

5g of creatine per day

4.exercise in normoxia without creatine supplementation

* the same training program in normoxic conditions
* without creatine supplementation

Group Type EXPERIMENTAL

normoxia

Intervention Type BEHAVIORAL

eccentric training program conducted within normoxic conditions

no creatine supplementation

Intervention Type DIETARY_SUPPLEMENT

no creatine supplementation

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

hypoxia

eccentric training program conducted within normobaric hypoxic chamber

Intervention Type BEHAVIORAL

normoxia

eccentric training program conducted within normoxic conditions

Intervention Type BEHAVIORAL

creatine supplementation

5g of creatine per day

Intervention Type DIETARY_SUPPLEMENT

no creatine supplementation

no creatine supplementation

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* type 1 diabetes of at least 10 years duration,
* low physical activity,
* BMI:20-31 kg/m2,
* treated with multiple insulin injections (at least 4 daily) or insulin pump (continuous subcutaneous insulin infusion \[CSII\]),
* negative ECG exercise test,
* HbA1c ≤ 8,0%,
* high knowledge about functional insulin therapy, carbohydrate counting and diabetes management during exercise,
* experience in use of FreeStyleLibre2 (Flash Glucose Monitoring System, Abbott),
* Informed consent to participate in research signed by enrolled subjects

Exclusion Criteria

* HbA1c \> 8,0%,
* advanced complications of diabetes \[pre-proliferative or proliferative retinopathy, and previous laser therapy, microalbuminuria or overt nephropathy, autonomic neuropathy (including lack of elevated heart rate during physical activity)\],
* patients physically active (regular physical activities more than once a week),
* positive ECG exercise test,
* history of cardiovascular event or coronary heart disease
Minimum Eligible Age

20 Years

Maximum Eligible Age

45 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Silesian Centre for Heart Diseases

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Krzysztof Strojek, Prof.

Role: STUDY_CHAIR

Medical University of Silesia in Katowice

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Department of Internal Diseases, Diabetology and Cardiometabolic Disorders, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Poland

Zabrze, Silesian Voivodeship, Poland

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

Poland

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Marta Wróbel, MD,PhD

Role: CONTACT

+46606873060

Paula Nowocień, MD

Role: CONTACT

48695219960

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Marta Wróbel, PhD

Role: primary

48606873060

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

Hypoxia-Exercise-DiabetesT1

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Exercise Physiology Study
NCT03090451 COMPLETED NA