Effect of Hot Spring Therapy on Autonomic Nervous System and Exercise Performance During Altitude Training
A Randomized Controlled Trial to Investigate the Effects of Balneotherapy on Cardiac Autonomic Regulation and Exercise Performance in Healthy Adolescents Undergoing Real 1600-meter Altitude Training and Athlete Training.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Ziyue Ou, PHD
- Telefonnummer: 15626121623
- E-mail: 395356506@qq.com
Studiesteder
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Macao, Kina
- Macao Polytechnic University
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Male or female aged 11-17years
- Regular endurance training (≥3 sessions/week) for ≥2 years
- No history of altitude exposure >2000m in the past 3 months
- No contraindications to hot water immersion (e.g., uncontrolled hypertension, severe cardiovascular disease, open wounds, pregnancy)
- Ability to provide written informed consent- Willingness to abstain from other recovery modalities (e.g., massage, cryotherapy, compression garments) during the study period
Exclusion Criteria:
- History of cardiovascular, respiratory, renal, or endocrine disorders
- Current use of medications affecting autonomic function (e.g., beta-blockers, anticholinergics)- History of syncope or heat intolerance
- Acute musculoskeletal injury within the past 6 months- Regular use of sauna, hot tub, or spa within the past month
- Pregnancy or breastfeeding (for female participants)- Shift work or trans-meridian travel within 2 weeks prior to baseline assessment
- Alcohol consumption >14 units/week or smoking
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Aktiv komparator: Natural Recovery Group
Control group participants will undergo the same altitude training protocol (altitude 1600 meters) for 4 weeks.
After each training session, participants will receive standard recovery procedures, including 20 minutes of passive rest in a thermoneutral environment (room temperature 24°C), supplemented with mild hydration and self-selected stretching.
No hydrothermal intervention will be provided.
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Control group participants will undergo the same altitude training protocol (altitude 1600 meters) for 4 weeks.
After each training session, participants will receive standard recovery procedures, including 20 minutes of passive rest in a thermoneutral environment (room temperature 24°C), supplemented with mild hydration and self-selected stretching.
No hydrothermal intervention will be provided.
Andre navne:
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Aktiv komparator: Hot water immersion group
The hot water immersion group will undergo a 4-week altitude training at 1600 meters above sea level.
Subjects will receive a 20-minute hot water immersion (daily tap water, 38°C±1°C) in a standardized indoor hot spring facility.
The immersion protocol involves soaking the body below the chest for 20 minutes, followed by a 10-minute rest before leaving the facility.
Three times per week.
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The hot water immersion group will undergo a 4-week altitude training at 1600 meters above sea level.
Subjects will receive a 20-minute hot water immersion (daily tap water, 38°C±1°C) in a standardized indoor hot spring facility.
The immersion protocol involves soaking the body below the chest for 20 minutes, followed by a 10-minute rest before leaving the facility.
Three times per week.
Andre navne:
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Eksperimentel: Hot Spring Immersion Group
The hot spring immersion group will undergo a 4-week high-altitude training at an altitude of 1600 meters.
Subjects will receive a 20-minute hot spring therapy (natural hot spring water, 38°C ± 1°C) in a standardized indoor hot spring facility.
The immersion protocol involves soaking the body below the chest for 20 minutes, followed by a 10-minute rest before leaving the facility.
Three times per week.
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The hot spring immersion group will undergo a 4-week high-altitude training at an altitude of 1600 meters.
Subjects will receive a 20-minute hot spring therapy (natural hot spring water, 38°C ± 1°C) in a standardized indoor hot spring facility.
The immersion protocol involves soaking the body below the chest for 20 minutes, followed by a 10-minute rest before leaving the facility.
Three times per week.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Heart Rate Variability (HRV) - RMSSD
Tidsramme: Baselines were measured at the formal start of the experiment, at night during the 2nd, 3rd, and 4th weeks (post-intervention) after ascending the plateau, and post-tests were conducted one week after descending the plateau.
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Root mean square of successive differences (RMSSD) between normal heartbeats, measured from a 5-minute seated ECG recording in a quiet, temperature-controlled (22-24°C) room after 15 minutes of rest.
A higher RMSSD value indicates stronger parasympathetic activity.
Unit: milliseconds (ms).
Baseline, Week 2, Week 3 (post-intervention).
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Baselines were measured at the formal start of the experiment, at night during the 2nd, 3rd, and 4th weeks (post-intervention) after ascending the plateau, and post-tests were conducted one week after descending the plateau.
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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HRV - SDNN
Tidsramme: Baselines were measured at the formal start of the experiment, at night during the 2nd, 3rd, and 4th weeks (post-intervention) after ascending the plateau, and post-tests were conducted one week after descending the plateau.
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Standard deviation of NN intervals (normal-to-normal R-R intervals), reflecting overall autonomic modulation.
Unit: milliseconds (ms).
Baseline, Week 2, Week 3, Week4, post-tests
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Baselines were measured at the formal start of the experiment, at night during the 2nd, 3rd, and 4th weeks (post-intervention) after ascending the plateau, and post-tests were conducted one week after descending the plateau.
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Peripheral Oxygen Saturation (SpO2)
Tidsramme: one month.
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Resting peripheral oxygen saturation measured via fingertip pulse oximeter after 10 minutes of seated rest.
Unit: percentage (%)
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one month.
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Rating of Perceived Exertion (RPE)
Tidsramme: one month.
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Borg 6-20 scale rating of perceived exertion recorded immediately after each training session.
Higher scores indicate greater subjective effort.
Unit: score (6-20).
Daily during intervention
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one month.
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Maximum oxygen uptake
Tidsramme: The baseline measurement was taken before the official start of the experiment, and the post-test was conducted one week after descending from the plateau.
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Testing maximum oxygen uptake on a rowing ergometer combined with a cardiopulmonary function tester.
Protocol: Using a graded incremental protocol to test maximal oxygen uptake (VO2max).
Units: mL·kg-1 ·min-1.
Baseline, Week 5.
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The baseline measurement was taken before the official start of the experiment, and the post-test was conducted one week after descending from the plateau.
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30-second anaerobic power.
Tidsramme: The tests are scheduled before entering the plateau (baseline), during the 4th week of plateau training, and 1 week after leaving the plateau.
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Perform a 30-s all-out test on a rowing ergometer.
Protocol: sprint at maximum effort to measure the 30-second average power.
Record power.
Units: watt.
Baseline, Week 4,1 week after altitude training.
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The tests are scheduled before entering the plateau (baseline), during the 4th week of plateau training, and 1 week after leaving the plateau.
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Generelle publikationer
- Laukkanen T, Khan H, Zaccardi F, Laukkanen JA. Association between sauna bathing and fatal cardiovascular and all-cause mortality events. JAMA Intern Med. 2015 Apr;175(4):542-8. doi: 10.1001/jamainternmed.2014.8187.
- Stanley J, Peake JM, Buchheit M. Consecutive days of cold water immersion: effects on cycling performance and heart rate variability. Eur J Appl Physiol. 2013 Feb;113(2):371-84. doi: 10.1007/s00421-012-2445-2. Epub 2012 Jul 3.
- Buchheit M, Simpson BM, Garvican-Lewis LA, Hammond K, Kley M, Schmidt WF, Aughey RJ, Soria R, Sargent C, Roach GD, Claros JC, Wachsmuth N, Gore CJ, Bourdon PC. Wellness, fatigue and physical performance acclimatisation to a 2-week soccer camp at 3600 m (ISA3600). Br J Sports Med. 2013 Dec;47 Suppl 1(Suppl 1):i100-6. doi: 10.1136/bjsports-2013-092749.
- Jdidi H, Dugue B, de Bisschop C, Dupuy O, Douzi W. The effects of cold exposure (cold water immersion, whole- and partial- body cryostimulation) on cardiovascular and cardiac autonomic control responses in healthy individuals: A systematic review, meta-analysis and meta-regression. J Therm Biol. 2024 Apr;121:103857. doi: 10.1016/j.jtherbio.2024.103857. Epub 2024 Apr 18.
- Michalsen A, Ludtke R, Buhring M, Spahn G, Langhorst J, Dobos GJ. Thermal hydrotherapy improves quality of life and hemodynamic function in patients with chronic heart failure. Am Heart J. 2003 Oct;146(4):728-33. doi: 10.1016/S0002-8703(03)00314-4.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 202502AS100005
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
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