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Exercise Self-Efficacy, Body Composition, and Physical Activity in Men With Hypogonadism

6. november 2026 oppdatert av: Aybüke Fanuscu, Hacettepe University

The Mediating Role of Exercise Self-Efficacy in the Relationship Between Body Composition and Physical Activity in Men With Hypogonadism: A Cross-Sectional Study

Male hypogonadism is a chronic endocrine condition characterized by deficient testosterone production, leading to adverse changes in body composition (decreased lean mass, increased fat mass) and various physical and psychological symptoms, including fatigue and reduced motivation. Although testosterone replacement therapy (TRT) is the primary medical treatment, its effectiveness in optimizing body composition largely depends on regular physical activity. However, the psychosocial mechanisms underlying exercise engagement in this specific population remain insufficiently explored.

Exercise self-efficacy, an individual's confidence in their ability to perform physical activity, is a major determinant of exercise behavior. While its mediating role between body composition and physical activity has been shown in other clinical populations, it has not been investigated in men with hypogonadism, where low testosterone levels uniquely impair psychological well-being and drive.

The primary objective of this cross-sectional study is to evaluate the mediating role of exercise self-efficacy in the relationship between body composition and physical activity levels in men with hypogonadism receiving TRT. Additionally, the study explores the potential moderating effects of serum total testosterone levels and TRT duration, while controlling for depressive symptoms as a covariate. Findings from this study aim to provide evidence-based guidance for clinicians and physical therapists in designing targeted exercise interventions and timing rehabilitation strategies for hypogonadal patients.

Studieoversikt

Detaljert beskrivelse

Male hypogonadism is associated with adverse alterations in body composition, including reduced lean muscle mass and increased adiposity, alongside symptoms such as fatigue, dysphoric mood, and reduced motivation. Although testosterone replacement therapy (TRT) serves as the primary medical intervention, optimizing body composition outcomes relies significantly on concurrent physical activity.

Exercise self-efficacy, the confidence in one's capability to carry out physical activity, is a robust determinant of exercise adherence. In hypogonadism, low testosterone levels uniquely impair psychosocial well-being and motivational drive, creating a distinct biologically driven barrier to exercise engagement that differs from general metabolic or obesity-related populations.

Furthermore, the physiological and psychological responses to TRT follow a time-dependent trajectory. Early stages of therapy may exhibit rapid shifts in mood and sociability, whereas energy levels and physical capacity gradually improve over subsequent weeks and months. This temporal progression suggests that TRT duration and serum total testosterone levels may serve as critical moderators influencing how body composition interacts with exercise self-efficacy and physical activity.

This study evaluates the structural relationships between body composition parameters and physical activity levels in men with hypogonadism. Specifically, it tests whether exercise self-efficacy mediates this relationship, and assesses the potential moderating roles of serum total testosterone levels and TRT duration, while statistically controlling for depressive symptoms to isolate the specific biological and psychosocial pathways.

Studietype

Observasjonsmessig

Registrering (Antatt)

45

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

      • Bingoel, Tyrkia (Türkiye)
        • Rekruttering
        • Bingol University Faculty of Physical Therapy and Rehabilitation
        • Ta kontakt med:
      • Malatya, Tyrkia (Türkiye)

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Mann

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

The study population consists of adult male patients aged 18 years or older who have been diagnosed with primary or secondary hypogonadism (biochemically confirmed morning serum total testosterone <300 ng/dL) and are currently receiving testosterone replacement therapy (TRT). Participants will be recruited from patients attending routine clinical visits at the Endocrinology Outpatient Clinic of Malatya Training and Research Hospital.

Beskrivelse

Inclusion Criteria:

  • Confirmed diagnosis of male hypogonadism (primary or secondary; biochemically verified with a morning serum total testosterone level <300 ng/dL).
  • Currently undergoing TRT with observed partial or complete symptom remission, evaluated as treatment-responsive by the clinician.
  • Aged 18 years or older.
  • Ability to read and write in Turkish.
  • Voluntary agreement to participate and signature on the informed consent form.

Exclusion Criteria:

  • Neurological, orthopedic, or cardiopulmonary conditions independent of hypogonadism that restrict physical activity capacity.
  • Diagnosed psychiatric disorders directly impacting exercise self-efficacy and physical activity (e.g., major depressive disorder, psychosis).
  • Concomitant endocrine disorders significantly affecting body composition, including uncontrolled or complicated diabetes mellitus (HbA1c >8.0% or presence of diabetic nephropathy, neuropathy, retinopathy) or biochemically unverified euthyroid state in thyroid disease.
  • Presence of conditions preventing bioelectrical impedance analysis (e.g., implanted cardiac devices/pacemakers).
  • Visual or cognitive impairments preventing the reading and completion of study questionnaires.
  • Chronic inflammatory conditions directly affecting body composition and physical capacity (e.g., chronic kidney disease, inflammatory bowel disease, rheumatoid arthritis, systemic lupus erythematosus, ankylosing spondylitis).

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: OTHER
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Men with Hypogonadism on TRT

Male patients aged 18 years or older who have been diagnosed with primary or secondary hypogonadism (biochemically verified morning serum total testosterone <300 ng/dL) and are currently receiving testosterone replacement therapy (TRT).

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Physical Activity Level
Tidsramme: Baseline

Assessed using the International Physical Activity Questionnaire - Short Form (IPAQ-SF). IPAQ-SF evaluates walking, moderate, and vigorous intensity physical activities performed over the last 7 days. Total physical activity score will be calculated as MET-minutes/week.

Baseline

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Exercise Self-Efficacy Score
Tidsramme: Baseline

Evaluated via the Exercise Self-Efficacy Scale (EXSE). The scale consists of 18 items assessing an individual's confidence to maintain exercise across challenging situations. Items are rated on a 0-100 numerical rating scale with 10-unit intervals. Total scores range from 0 to 1800, with higher scores reflecting greater confidence in exercise adherence.

Baseline
Body Weight
Tidsramme: Baseline

Measured using a Tanita BC-420SMA Bioelectrical Impedance Analyzer. This outcome reports body weight in kilograms.

Baseline
Serum Total Testosterone Level
Tidsramme: Baseline

Recorded from recent morning routine clinical laboratory records. Measured in nanograms per deciliter (ng/dL).

Baseline
Depressive Symptoms (Covariate)
Tidsramme: Baseline

Evaluated using the depression subscale of the Hospital Anxiety and Depression Scale (HADS-D). Contains 7 items, each scored on a 0-3 Likert scale (subscale score ranges from 0 to 21), with higher scores indicating higher levels of depressive symptoms.

Baseline
Body Mass Index (BMI)
Tidsramme: Baseline

Calculated using height and body weight via a Tanita BC-420SMA Bioelectrical Impedance Analyzer.

Baseline

Samarbeidspartnere og etterforskere

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Etterforskere

  • Hovedetterforsker: Aybüke Fanuscu, Pt, PhD, Bingol University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

20. oktober 2026

Primær fullføring (Antatt)

30. september 2027

Studiet fullført (Antatt)

15. oktober 2027

Datoer for studieregistrering

Først innsendt

4. august 2026

Først innsendt som oppfylte QC-kriteriene

6. november 2026

Først lagt ut (Faktiske)

9. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

9. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

6. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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