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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 aktualisiert von: 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.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

16

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

  • China
      • Macao, China
        • Rekrutierung
        • Macao Polytechnic University, Faculty of Health Sciences and Sports, Macao, China
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene

Akzeptiert gesunde Freiwillige

Ja

Beschreibung

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.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Sonstiges
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: 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.
Verhalten: Alternating Altitude Training
Participants complete the prescribed training program using an alternating altitude strategy, combining regular altitude training with selected sessions performed under simulated higher-altitude conditions.
Aktiver Komparator: Fixed-Altitude Training
Participants perform the same prescribed training program entirely at the regular altitude training base throughout the intervention.
Verhalten: Fixed-Altitude Training
Participants complete the prescribed training program exclusively at the regular altitude training base.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Body Weight
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Body weight measured before and after the training period.
Baseline and immediately after completion of the 4-week intervention.
Body Fat Percentage
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Body fat percentage measured using bioelectrical impedance or other validated method.
Baseline and immediately after completion of the 4-week intervention.
Forced Vital Capacity (FVC)
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Forced vital capacity measured using spirometry before and after the intervention.
Baseline and immediately after completion of the 4-week intervention.
Maximal Voluntary Ventilation
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
MVV measured using standard pulmonary function testing protocol pre- and post-intervention.
Baseline and immediately after completion of the 4-week intervention.
Left Ventricular Volume
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Echocardiography measurement of left ventricular end-diastolic and end-systolic volume.
Baseline and immediately after completion of the 4-week intervention.
Ejection Fraction
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Echocardiography assessment of left ventricular ejection fraction pre- and post-training.
Baseline and immediately after completion of the 4-week intervention.
Myocardial Thickness
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Measurement of interventricular septum and left ventricular posterior wall thickness by echocardiography.
Baseline and immediately after completion of the 4-week intervention.
Maximal Oxygen Uptake
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Pre- and post-intervention measurement of VO₂max using standard exercise testing protocol to assess aerobic capacity
Baseline and immediately after completion of the 4-week intervention.
Countermovement Jump Height
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
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.
Baseline and immediately after completion of the 4-week intervention.
Squat Jump Height
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
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.
Baseline and immediately after completion of the 4-week intervention.
Isometric Mid-Thigh Pull Peak Force
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
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.
Baseline and immediately after completion of the 4-week intervention.
Isometric Mid-Thigh Pull Rate of Force Development
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
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.
Reactive Strength Index (RSI)
Zeitfenster: 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.

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Red Blood Cell Count
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
RBC count measured from venous blood samples pre- and post-intervention.
Baseline and immediately after completion of the 4-week intervention.
Hemoglobin
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Hemoglobin concentration measured from venous blood samples.
Baseline and immediately after completion of the 4-week intervention.
Hematocrit
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Hemoglobin concentration measured from venous blood samples.
Baseline and immediately after completion of the 4-week intervention.
Erythropoietin
Zeitfenster: Baseline and immediately after completion of the 4-week intervention.
Plasma EPO concentration measured from venous blood samples.
Baseline and immediately after completion of the 4-week intervention.

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Macao Polytechnic University

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

20. Juli 2026

Primärer Abschluss (Geschätzt)

5. September 2026

Studienabschluss (Geschätzt)

5. September 2026

Studienanmeldedaten

Zuerst eingereicht

14. Juli 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

16. Juli 2026

Zuerst gepostet (Tatsächlich)

21. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

21. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

16. Juli 2026

Zuletzt verifiziert

1. Juli 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • AAT-RW-2026-01

Plan für individuelle Teilnehmerdaten (IPD)

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NEIN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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