Significance of Estrogen Status for Muscle Function, Physical Fitness, and Physiological Health Parameters - a Comparison of Age-matched Groups of Women Before and After Menopause. (HER-MUSCLEX)
9. Juni 2026 aktualisiert von: Mette Hansen
Effects of Estrogen on Muscle Gain During 12-weeks of Exercise in Post-menopausal Women
As females age and transition through menopause, the decline in oestrogen level profoundly affects skeletal muscle mass and function. HER-MUSCLE aims to unravel the differences in pre and post menopausal women, in regards to muscle size, strength and function.
Focusing on postmenopausal females, an increasingly at-risk demographic, HER-MUSCLE addresses a critical gap in understanding how oestrogen influences muscle mass and function.
The project involves:
- Molecular Analysis: Advanced techniques will study the muscle microenvironment, focusing on muscle stem cells (MuSCs), fibro-adipogenic progenitors (FAPs), and other cells critical for muscle regeneration and maintenance.
- Mitochondrial Function assessed in vivo via magnetic resonance spectroscopy: The impact of oestrogen on mitochondrial health will be examined, exploring how it preserves mitochondrial function and ability to recovery and resist fatigue in response to muscle contractions.
Our preliminary data indicate that oestrogen can promote muscle protein synthesis. HER-MUSCLE aims to pave the way for novel therapeutic strategies to manage sarcopenia in postmenopausal women, ultimately leading to better health outcomes and enhanced well-being for this growing population segment.
Studienübersicht
Status
Rekrutierung
Bedingungen
Detaillierte Beschreibung
As females age and transition through menopause, the decline in oestrogen level profoundly affects skeletal muscle mass and function. HER-MUSCLE aims to unravel the differences in pre and post menopausal women, in regards to muscle size, strength and function.
Focusing on postmenopausal females, an increasingly at-risk demographic, HER-MUSCLE addresses a critical gap in understanding how oestrogen influences muscle mass and function.
The project involves:
- Molecular Analysis: Advanced techniques will study the muscle microenvironment, focusing on muscle stem cells (MuSCs), fibro-adipogenic progenitors (FAPs), and other cells critical for muscle regeneration and maintenance.
- Mitochondrial Function assessed in vivo via magnetic resonance spectroscopy: The impact of oestrogen on mitochondrial health will be examined, exploring how it preserves mitochondrial function and ability to recovery and resist fatigue in response to muscle contractions.
Our preliminary data indicate that oestrogen can promote muscle protein synthesis. HER-MUSCLE aims to pave the way for novel therapeutic strategies to manage sarcopenia in postmenopausal women, ultimately leading to better health outcomes and enhanced well-being for this growing population segment.
Studientyp
Beobachtungs
Einschreibung (Geschätzt)
30
Kontakte und Standorte
Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.
Studienkontakt
- Name: Mette Hansen, PhD
- Telefonnummer: +4551666551
- E-Mail: mhan@ph.au.dk
Studienorte
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-
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Aarhus, Dänemark, 8000
- Rekrutierung
- Aarhus University
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Kontakt:
- Mette Hansen, PhD
- Telefonnummer: +4551666551
- E-Mail: mhan@ph.au.dk
-
Hauptermittler:
- Mette Hansen, PhD
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-
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
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Ja
Probenahmeverfahren
Nicht-Wahrscheinlichkeitsprobe
Studienpopulation
Participants will primarily be recruited from a radius of 50km from Aarhus.
Participants recruited will be age matched to participants in the main trial.
Beschreibung
Inclusion Criteria:
- Regular menstrual bleeding (21-35 days cycle).
- At least 9 menstrual cycles the last year
- Age >47 years old
- BMI 20-30
Exclusion Criteria:
- Only premenopausal women: Follicular stimulating hormone > 30 mmol/L
- Systematic strength training during the last year (> 1 strength training session per week)
- Systematic high intensity cardiovascular training during the last year (<2 times per week)
- Injuries to the legs which may prevent participation in the physical training program
- Magnetizable metals or electrical devices implanted in the body, such as a pacemaker
- Use of medication that can influence the effect of immobilization and/or training
- Muscular or joint disorders which may affect the results
- Metabolic diseases (such as diabetes and cardiovascular diseases)
- Previous or present liver or cancer disease
- Current or previous thrombosis
- Porphyria
- Epilepsia
- Systemic autoimmune disease
- Edema
- Smoking or use of other nicotine containing products
- Claustrophobia
- Addictive behavior, defined as abuse of cannabis, opioids, or other intoxicating substances.
- Lack of ability to cooperate
- Blood parameters out of normal range at the health check
- Blood pressure above 140/90 mmHg
Studienplan
Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
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Post menopausal women
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Pre menopausal women
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Muscle mass
Zeitfenster: 1 week
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Magnetic resonance imaging
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1 week
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Mitochondria Function in vivo measured as phosphocreatine recovery rate
Zeitfenster: 1 weeks
|
The dominant foot will be attached to a pedal mounted on the patient bed and a dedicated 31P surface coil will be secured over the tibialis anterior muscle.
The pedal is designed to allow dynamic contractions of the tibialis anterior muscle while changes in metabolites from the tibialis anterior muscle are acquired non-invasively with the 31P coil.
Two protocols will be performed: Firstly, 10 repeated contractions (one per 3 sec with a load representing 30% of maximal force) will result in a depletion (30-40%) of phosphocreatine (PCr).
The rate constant for PCr recovery over 10 min will be used as an index of in vivo mitochondrial function.
Secondly, a total of 80 repeated contractions (one per 3 sec with a load representing 30% of maximal force) will be used to quantify muscle fatigue and concurrent changes in muscle metabolites and intracellular pH (based on the chemical shift between inorganic phosphate and PCr).
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1 weeks
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Mitochondria Function in vitro measured as maximal oxygen consumption
Zeitfenster: 1 weeks
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All measurements were performed in duplicate using an Oxygraph-2k (Oroboros, Austria), in hyperoxygenated chambers (250-450 nmol O₂/mL).
Respiratory Control Ratio was used to evaluate mitochondrial efficiency.
It was calculated as the ratio of maximal ADP-supported respiration (with complex I + II substrates) to leak respiration.
Leak respiration reflects oxygen consumption in the absence of ATP synthesis, when only substrates are present and no ADP is added.
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1 weeks
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Body composition
Zeitfenster: 1 weeks
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DXA
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1 weeks
|
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Satelitte cells
Zeitfenster: 1 weeks
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Histochemical Analysis of Muscle tisse
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1 weeks
|
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Muscle fiber cross-sectional Area
Zeitfenster: 1 weeks
|
Histochemical Analysis of Muscle Tissue
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1 weeks
|
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Expression of Muscle proteins
Zeitfenster: 1 weeks
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Western blotting analysis
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1 weeks
|
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FACS Analysis
Zeitfenster: 1 weeks
|
FACS analysis to quantify and isolate Muscle satelitte celss, fibro-adipogenic progenitors and macrofages
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1 weeks
|
|
Muscle Strength
Zeitfenster: 1 weeks
|
Includes measure of leg strength during isometric and dynamic maximal voluntary contractions in a dynamometer (Humac Norm, CSMi, Massachusetts, United States) with a hip angle of 90°.
In addition, finger strength, hand grip strength
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1 weeks
|
|
Functional tests
Zeitfenster: 1 weeks
|
Includes counter-movement jump on a speed force-platform (Swift performance, Australia).
To measure dexterity, the nine-hole peg test will be applied.
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1 weeks
|
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Cardiovascular fitness
Zeitfenster: 1 week
|
Vo2max test on a bike and estimated via Ventriject
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1 week
|
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Maximal fat oxidation rate
Zeitfenster: 1 week
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Bike test with increasing intensity steps
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1 week
|
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Resisting metabolic rate
Zeitfenster: 1 week
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1 week
|
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Questionaires
Zeitfenster: 1 week
|
The participant will be asked to fill out recognized questionnaires about menopause (Menopause Rating Scale), sleep, diet and training readiness (modified version of "The wellbeing review"
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1 week
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Physical Activity Level
Zeitfenster: 1 week
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Accelerometers
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1 week
|
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Flexibility
Zeitfenster: 1 week
|
sit-and-reach test
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1 week
|
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Knee laxity
Zeitfenster: 1 week
|
Lachmeter test
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1 week
|
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Protein expression in adipose tissue
Zeitfenster: 1 week
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Two adipose tissue biopsies will be obtained from each participant by a trained physician.
Western blotting analysis of expression of proteins related to lipolysis and lipogenesis
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1 week
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Blood pressure
Zeitfenster: 1 week
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1 week
|
|
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Blood volume
Zeitfenster: 1 week
|
Determination of blood volume and haemoglobin mass by the carbon-monoxide rebreathing method
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1 week
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Andere Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Blood analysis
Zeitfenster: 1 week
|
Estradiol testosteron SHBG progesteron FSH LH Insulin IGF-1 + IGF-1 Bp3 - metabolit LDL - lipid HDL - lipid Triglycerid - lipid Total cholesterol Kortisol P1NP CTX1 - knogle HbA1c PTH CRP p-kreatinase p-kreatinin+eGFR p-calcium p-alanintransaminase p-alb
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1 week
|
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Dairy record registration
Zeitfenster: 1 week
|
A total of five days prior to the test
|
1 week
|
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Height
Zeitfenster: 1 week
|
1 week
|
|
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Body mass
Zeitfenster: 1 week
|
1 week
|
Mitarbeiter und Ermittler
Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.
Sponsor
Ermittler
- Hauptermittler: Mette Hansen, PhD, Aarhus University, Department of Public Health
Publikationen und hilfreiche Links
Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.
Nützliche Links
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 (Tatsächlich)
1. Februar 2026
Primärer Abschluss (Geschätzt)
1. August 2027
Studienabschluss (Geschätzt)
1. August 2027
Studienanmeldedaten
Zuerst eingereicht
27. Februar 2026
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
9. Juni 2026
Zuerst gepostet (Tatsächlich)
16. Juni 2026
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
16. Juni 2026
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
9. Juni 2026
Zuletzt verifiziert
1. Juni 2026
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Andere Studien-ID-Nummern
- E30 HER-MUSCLE cross sectional
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
NEIN
Beschreibung des IPD-Plans
Do to GDPR rules, we do not plan to share
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Nein
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Nein
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