Effects of Breathing a Hyperoxic Gas Mixture on Perceptual, Biochemical and Performance Recovery Following Simulated Soccer Match Play

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

PACTR

Registry ID

PACTR202411749096874

Enrollment

Registered

2024-11-21

Start date

2024-01-01

Completion date

Unknown

Last updated

2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Musculoskeletal Diseases

Interventions

Hyperoxic gas HYP

NORM

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Members of the same squad playing in second division of the local National League, were trained between 4 and 5 days per week for ~60 to 70 min per session and played one official match every week

Exclusion criteria

Exclusion criteria: Injury Chronic disease

Design outcomes

Primary

Measure	Time frame
All participants completed two preliminary visits to ensure familiarization with the measurements, and another session to evaluate VO2max using the 20 m shuttle run test. Afterwards, subjects completed two experimental sessions separated by 14 days in which they performed a simulated soccer match followed by 15 min of recovery during which period they were breathing either a hyperoxic gas mixture with a fraction of inspired oxygen (FIO2) of 99.5% O2 (HYP) or a normoxic gas mixture with a FI O2 of 21% (NORM). Physical performance, biochemical and perceptual parameters were assessed at baseline, 15 min (immediately after the gas breathing), 24, 48 and 72 h after the LIST. The order of testing was the same in both HYP and NORM; firstly, the subjective ratings was recorded, followed by the biochemical parameters, followed by the physical performance tests.	—

Measure

Time frame

All participants completed two preliminary visits to ensure familiarization with the measurements, and another session to evaluate VO2max using the 20 m shuttle run test. Afterwards, subjects completed two experimental sessions separated by 14 days in which they performed a simulated soccer match followed by 15 min of recovery during which period they were breathing either a hyperoxic gas mixture with a fraction of inspired oxygen (FIO2) of 99.5% O2 (HYP) or a normoxic gas mixture with a FI O2 of 21% (NORM). Physical performance, biochemical and perceptual parameters were assessed at baseline, 15 min (immediately after the gas breathing), 24, 48 and 72 h after the LIST. The order of testing was the same in both HYP and NORM; firstly, the subjective ratings was recorded, followed by the biochemical parameters, followed by the physical performance tests.

—

Secondary

Measure	Time frame
Heart Rate	—

Countries

Tunisia

Contacts

Public ContactHaithem Rebai

Professor

haithem.rebai@isseps.usf.tn+21621825264

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Sep 19, 2026