Normobaric Hypoxia as a Strength Training Intensity Amplifier in Ice Hockey Players: Effects on A… (NCT06930027) | Clinical Trial Compass
By InvitationNot Applicable
Normobaric Hypoxia as a Strength Training Intensity Amplifier in Ice Hockey Players: Effects on Anaerobic Performance and Muscle Contraction Properties
Poland40 participantsStarted 2025-04-25
Plain-language summary
The goal of this research study is to investigate the effects of resistance training performed under normobaric hypoxia (simulated altitude conditions) on anaerobic performance, lactate clearance, and muscle contractility in elite ice hockey players. The main questions it aims to answer are:
Does resistance training under hypoxic conditions improve anaerobic peak power and mean power compared to training under normal oxygen conditions?
Does training under hypoxia affect lactate kinetics and buffering capacity differently than normoxic training?
Does hypoxic training enhance muscle contractility properties differently compared to normoxic training?
In practice: Can hypoxic training help injured athletes maintain performance levels while reducing overall physical stress and preventing detraining?
Researchers will compare four training approaches:
High-intensity training in normoxia (normal oxygen conditions)
Low-intensity training in normoxia
High-intensity training in hypoxia (simulated altitude of 3500 meters)
Low-intensity training in hypoxia
Participants will:
Perform resistance training sessions using a leg press twice a week for 6 weeks, with progressively increased intensity.
Complete anaerobic performance tests (Wingate tests for both lower and upper limbs) before and after the training intervention.
Undergo tensiomyographic assessments to evaluate muscle contractility.
Provide capillary blood samples at 0, 4, and 8 minutes post-exercise to assess lactate clearance and metabolic recovery.
Who can participate
Age range
18 Years – 35 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Male professional-level ice hockey athletes (Napród Janów HC).
* Age range: 18-30 years.
* Minimum of 3 years of consistent professional level ice hockey training experience.
* No history of significant injury or illness within the previous 3 months.
* Able and willing to comply with all study procedures, including adherence to --scheduled training sessions and assessments.
* Provision of written informed consent to participate.
Exclusion Criteria:
* Current or recent (within past 3 months) musculoskeletal injuries or conditions that would limit participation in resistance training.
* Presence of cardiovascular, metabolic, respiratory, or neuromuscular disorders that may pose risk or interfere with performance assessment or training.
* Current participation in another structured hypoxic training protocol or simultaneous research intervention.
* History of altitude-related illness or known adverse reactions to hypoxic exposure.
* Use of any medications or supplements known to significantly influence muscular performance or recovery within four weeks prior to study initiation.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Anaerobic Performance (2x Wingate Test)
Timeframe: Baseline (pre-intervention) and 6 weeks (immediately post-intervention)
2
Lactate Clearance Kinetics
Timeframe: Baseline (pre-intervention) and 6 weeks (post-intervention)
3
Muscle Contractility (Tensiomyography)
Timeframe: Time Frame: Baseline (pre-intervention) and 6 weeks (post-intervention)
Trial details
NCT IDNCT06930027
SponsorThe Jerzy Kukuczka Academy of Physical Education in Katowice