Effects of Hot Baths Prior or After a Damaging Protocol on Muscle Function and HSP70 Expression (Prehotemp)
Muscle lengthening contractions lead to physiological responses such as strength loss, soreness, immune cell infiltration, and CK production, along with elevated heat shock proteins (HSPs), which protect and regenerate cells. Passive heating before or after exercise can aid in recovery by restoring strength and reducing soreness, requiring a core temperature of over 38.5°C for 20 minutes to be effective. Studies show that combined mechanical and thermal stress induces a cumulative HSP response, enhancing cellular protection. Thermal stress alone peaks at 16- 24 hours, whereas mechanical stress shows a biphasic response, with peaks at 3-6 hours and around 39 hours. Thus, combining heat with exercise could optimize HSP production, improving recovery by increasing and accelerating the HSP response. However, more research is needed to determine the best timing for thermal stress in human applications, especially in sports and therapy contexts.
This study aimed to compare the effects of hot-water immersion administered before versus after muscle-lengthening exercise on muscle function and HSP70 expression in healthy young athletes.
Studieoversikt
Status
Intervensjon / Behandling
Studietype
Registrering (Antatt)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiekontakt
- Navn: Yannis Hamidou, MD
- Telefonnummer: 33+3 22 66 82 48
- E-post: Hamidou.yannis@chu-amiens.fr
Studiesteder
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Amiens, Frankrike, 80054
- Rekruttering
- CHRU Amiens
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Ta kontakt med:
- Yannis Hamidou, MD
- Telefonnummer: 33+3 22 66 82 48
- E-post: Hamidou.yannis@chu-amiens.fr
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
Tar imot friske frivillige
Beskrivelse
Inclusion Criteria:
- Sex: Healthy, athletic men practicing track and field (10 to 12 hours/week)
- Age: 19 to 25 years old
- Social security coverage
- Signed informed consent
Exclusion Criteria:
- Age over 26 years
- Low level of physical activity (less than 8 hours per week)
- Recent sprain (type 1, 2, or 3) or ligament rupture in the lower limb (within the last 8 months)
- Exposure to an altitude of 2500m within 15 days prior to the protocol
- Presence of arterial hypotension:
- Systolic blood pressure below 90 mmHg
- Diastolic blood pressure below 60 mmHg
- A drop in systolic blood pressure greater than 20 mmHg upon moving from a lying to a standing position.
- A drop in diastolic blood pressure greater than 10 mmHg upon moving from a lying to a standing position.
- Presence of dizziness, lightheadedness, or blurred vision upon moving from a lying to a standing position.
- Participant under guardianship/conservatorship or deprived of liberty.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Annen
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Enkelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
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Eksperimentell: 41 pre-EIMD
hot-water immersion at 41°C performed 24 hours before EIMD (pre-EIMD)
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Immersion lasted 40 minutes with the goal of reaching a core temperature of 38.5°C in the heat-stress groups
NIRS
isokinetic dynamometer
pressure algometer
Hokanson armband
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Eksperimentell: 41 post-EIMD
hot- water immersion at 41°C immediately after EIMD (post-EIMD)
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Immersion lasted 40 minutes with the goal of reaching a core temperature of 38.5°C in the heat-stress groups
NIRS
isokinetic dynamometer
pressure algometer
Hokanson armband
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|
Sham-komparator: 36°C post- EIMD
sham immersion at 36°C post- EIMD
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Immersion lasted 40 minutes with the goal of reaching a core temperature of 38.5°C in the heat-stress groups
NIRS
isokinetic dynamometer
pressure algometer
Hokanson armband
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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HSP 70 concentration
Tidsramme: 1 year
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HSP 70 concentration in third groups
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1 year
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Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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gastro-intestinal temperature
Tidsramme: 1 year
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1 year
|
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muscle temperature
Tidsramme: 1 year
|
1 year
|
Samarbeidspartnere og etterforskere
Samarbeidspartnere
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- PI2025_843_0182
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
Legemiddel- og utstyrsinformasjon, studiedokumenter
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