Effects of Alternating Altitude Training Versus Fixed-Altitude Training on Exercise Capacity and Physiological Adaptations in Elite Race Walkers: A Randomized Controlled Trial
16 juli 2026 uppdaterad av: Chaoran Han, Macao Polytechnic University
Effects of Alternating Altitude Training Versus Fixed-Altitude Training on Physical Performance and Physiological Adaptations in Elite Race Walkers: A Randomized Controlled Trial
This randomized controlled trial aims to compare the effects of alternating altitude training and fixed-altitude training on physical performance and physiological adaptations in elite race walkers living at altitude.
Elite race walkers from Yunnan Province will be randomly assigned to either an alternating altitude training group or a fixed-altitude training group.
The alternating altitude training group will perform selected training sessions under simulated higher-altitude conditions while completing the remaining sessions at their regular altitude training base.
The fixed-altitude training group will complete all training sessions at the regular altitude.
Physical performance, race walking performance, cardiovascular function, pulmonary function, and hematological parameters will be assessed before and after the intervention to evaluate the effectiveness of the two altitude training strategies.
Studieöversikt
Status
Rekrytering
Betingelser
Intervention / Behandling
Studietyp
Interventionell
Inskrivning (Beräknad)
16
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studiekontakt
- Namn: Binghong Gao
- Telefonnummer: +853 8591 2000
- E-post: research_ethics@ipm.edu.mo
Studieorter
-
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Macao, Kina
- Rekrytering
- Macao Polytechnic University, Faculty of Health Sciences and Sports, Macao, China
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Kontakt:
- Chaoran Han
- Telefonnummer: +853 8591 2000
- E-post: hanchaoran1999@outlook.com
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-
Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
Tar emot friska volontärer
Ja
Beskrivning
Inclusion Criteria:
- Male and female elite race walkers aged 16-26 years. Registered athletes from the Yunnan Provincial Race Walking Team. Long-term residents of high-altitude regions with regular altitude training experience.
Healthy and medically cleared to participate in high-intensity training and hypoxic exposure.
Able to complete the prescribed training program and all outcome assessments. Provided written informed consent before enrollment. For participants younger than 18 years, written informed consent will also be obtained from a parent or legal guardian.
Exclusion Criteria:
- Any cardiovascular, respiratory, metabolic, neurological, or other medical condition contraindicating exercise or hypoxic exposure.
Musculoskeletal injury or illness affecting normal training or performance within the previous three months.
Current use of medications or supplements that may substantially influence physiological adaptation or exercise performance.
Failure to complete the intervention or outcome assessments according to the study protocol.
Withdrawal of informed consent at any time during the study.
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Övrig
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Experimentell: Alternating Altitude Training
Participants perform the prescribed training program using an alternating altitude strategy, with selected training sessions conducted under simulated higher-altitude conditions and the remaining sessions completed at the regular altitude training base.
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Participants complete the prescribed training program using an alternating altitude strategy, combining regular altitude training with selected sessions performed under simulated higher-altitude conditions.
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Aktiv komparator: Fixed-Altitude Training
Participants perform the same prescribed training program entirely at the regular altitude training base throughout the intervention.
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Participants complete the prescribed training program exclusively at the regular altitude training base.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Body Weight
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Body weight measured before and after the training period.
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Baseline and immediately after completion of the 4-week intervention.
|
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Body Fat Percentage
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Body fat percentage measured using bioelectrical impedance or other validated method.
|
Baseline and immediately after completion of the 4-week intervention.
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Forced Vital Capacity (FVC)
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Forced vital capacity measured using spirometry before and after the intervention.
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Baseline and immediately after completion of the 4-week intervention.
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Maximal Voluntary Ventilation
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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MVV measured using standard pulmonary function testing protocol pre- and post-intervention.
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Baseline and immediately after completion of the 4-week intervention.
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Left Ventricular Volume
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Echocardiography measurement of left ventricular end-diastolic and end-systolic volume.
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Baseline and immediately after completion of the 4-week intervention.
|
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Ejection Fraction
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Echocardiography assessment of left ventricular ejection fraction pre- and post-training.
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Baseline and immediately after completion of the 4-week intervention.
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Myocardial Thickness
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Measurement of interventricular septum and left ventricular posterior wall thickness by echocardiography.
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Baseline and immediately after completion of the 4-week intervention.
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Maximal Oxygen Uptake
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Pre- and post-intervention measurement of VO₂max using standard exercise testing protocol to assess aerobic capacity
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Baseline and immediately after completion of the 4-week intervention.
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Countermovement Jump Height
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Countermovement jump (CMJ) height measured using a validated force platform or jump assessment system to evaluate lower-limb explosive power before and after the intervention.
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Baseline and immediately after completion of the 4-week intervention.
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Squat Jump Height
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Squat jump (SJ) height measured using a validated force platform or jump assessment system to assess concentric lower-limb explosive strength before and after the intervention.
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Baseline and immediately after completion of the 4-week intervention.
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Isometric Mid-Thigh Pull Peak Force
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Peak force during the isometric mid-thigh pull (IMTP) measured using a force platform to assess maximal isometric lower-limb strength before and after the intervention.
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Baseline and immediately after completion of the 4-week intervention.
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Isometric Mid-Thigh Pull Rate of Force Development
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Rate of force development (RFD) during the isometric mid-thigh pull (IMTP) measured using a force platform before and after the intervention.
|
Baseline and immediately after completion of the 4-week intervention.
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Reactive Strength Index (RSI)
Tidsram: Baseline and immediately after completion of the 4-week intervention.
|
Reactive Strength Index (RSI) calculated from repeated ankle hops using a force platform or validated jump assessment system to assess lower-limb reactive strength before and after the intervention.
|
Baseline and immediately after completion of the 4-week intervention.
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Red Blood Cell Count
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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RBC count measured from venous blood samples pre- and post-intervention.
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Baseline and immediately after completion of the 4-week intervention.
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Hemoglobin
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Hemoglobin concentration measured from venous blood samples.
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Baseline and immediately after completion of the 4-week intervention.
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Hematocrit
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Hemoglobin concentration measured from venous blood samples.
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Baseline and immediately after completion of the 4-week intervention.
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Erythropoietin
Tidsram: Baseline and immediately after completion of the 4-week intervention.
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Plasma EPO concentration measured from venous blood samples.
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Baseline and immediately after completion of the 4-week intervention.
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Sponsor
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Beräknad)
20 juli 2026
Primärt slutförande (Beräknad)
5 september 2026
Avslutad studie (Beräknad)
5 september 2026
Studieregistreringsdatum
Först inskickad
14 juli 2026
Först inskickad som uppfyllde QC-kriterierna
16 juli 2026
Första postat (Faktisk)
21 juli 2026
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
21 juli 2026
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
16 juli 2026
Senast verifierad
1 juli 2026
Mer information
Termer relaterade till denna studie
Andra studie-ID-nummer
- AAT-RW-2026-01
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