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Polygonatum Odoratum Extract Combined With Aerobic Exercise Improves Body Composition, Insulin Resistance, Inflammation and Gut Microbiota-SCFA Profiles in Men With Central Obesity

7. november 2026 oppdatert av: Beijing Sport University

Polygonatum Odoratum Extract Combined With Aerobic Exercise Improves Body Composition, Insulin Resistance, Inflammation and Gut Microbiota-SCFA Profiles in Men With Central Obesity: A Randomized Placebo-Controlled Trial

This is a randomized controlled trial to investigate whether a combination of Polygonatum odoratum extract and aerobic exercise can improve body composition, insulin resistance, and inflammation in men with central obesity. Participants will be randomly assigned to either an intervention group (90 days of supervised aerobic exercise combined with daily Polygonatum odoratum extract supplementation) or a control group (usual lifestyle advice). The investigators will measure changes in body fat percentage, muscle mass, blood glucose, insulin levels, inflammatory markers, gut microbiota, and short-chain fatty acids (SCFAs) before and after the 90-day intervention. The goal is to evaluate whether combining Polygonatum odoratum supplementation with aerobic exercise can improve metabolic health in men with central obesity. Possible benefits include improved body composition and insulin sensitivity, as well as favorable changes in gut microbiota and SCFA profiles. Potential risks may include mild muscle soreness associated with exercise and gastrointestinal discomfort related to the supplement.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

200

Fase

  • Ikke aktuelt

Kontakter og plasseringer

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

Studiekontakt

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

40 år til 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Mann

Beskrivelse

Inclusion Criteria:

  • Chinese males aged 40 to 65 years.
  • Central obesity, defined as a waist circumference (WC) > 90 cm and a body mass index (BMI) ≥ 25.0 kg/m².
  • A daily eating window of ≥ 14 hours.
  • Moderate-to-vigorous physical activity (MVPA) ≤ 150 minutes per week.
  • Sedentary time ≥ 8 hours per day.

Exclusion Criteria:

  • Confirmed diagnosis of cardiovascular disease (CVD) or diabetes mellitus.
  • A history of alcohol consumption or tobacco use.
  • Diagnosis of conditions (e.g., arthritis) or presence of injuries that impair gait and limit exercise capacity.
  • Participation in other clinical trials within 4 weeks prior to enrollment.
  • Use of treatments or medications that may affect appetite or metabolism.

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Grunnvitenskap
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Ingen inngripen: Kontrollgruppe (CON)
Eksperimentell: Aerob treningsgruppe (ET)
Atferdsmessig: Supervised Aerobic Exercise

Moderate-intensity aerobic exercise 3 times per week, 40 minutes per session, for 90 days, supervised by trained exercise professionals.
Eksperimentell: Polygonatum odoratum（PO）
Kosttilskudd: Polygonatum odoratum Extract

Daily oral supplementation with standardized Cistanche deserticola extract for 90 days, administered as a capsule or powder.
Eksperimentell: Combined Intervention Group (POET)
Kosttilskudd: Polygonatum odoratum Extract

Daily oral supplementation with standardized Cistanche deserticola extract for 90 days, administered as a capsule or powder.

Atferdsmessig: Supervised Aerobic Exercise

Moderate-intensity aerobic exercise 3 times per week, 40 minutes per session, for 90 days, supervised by trained exercise professionals.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Waist Circumference
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Lufkin W606PM Metallic Tape；Measurement Method：Measured in accordance with the guidelines of the International Society for the Advancement of Kinanthropometry (ISAK). The measurement site is the midpoint between the iliac crest and the lower costal margin. The subject stands with relaxed abdomen and feet together, and the measurement is repeated at least 3 times to take the average value；Measurement Unit：Centimeter (cm)
Baseline to 90 days
Height
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Seca Leicester Stadiometer；Measurement Method：Measured in a standard standing position, barefoot, with the back against the stadiometer and the head kept level；Measurement Unit：Centimeter (cm)
Baseline to 90 days
Body Weight
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Tanita MC-780 MA Bioelectrical Impedance Analysis Instrument；Measurement Method：Measured after fasting, with light clothing and empty bladder, the measurement is repeated at least 3 times to take the average value；Measurement Unit：Kilogram (kg)
Baseline to 90 days
Body Mass Index (BMI)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Seca Leicester Stadiometer + Tanita MC-780 MA Bioelectrical Impedance Analysis Instrument；Measurement Method：Calculated by the formula: BMI = Body Weight (kg) / Height² (m²)；Measurement Unit：Kilogram per square meter (kg/m²)
Baseline to 90 days
Systolic Blood Pressure (SBP)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Omron M7 Intelli IT Automatic Blood Pressure Monitor；Measurement Method：Measured in a standard sitting position after the subject rests for 15 minutes, the measurement is repeated 3 times to take the average value；Measurement Unit：Millimeter of mercury (mmHg)
Baseline to 90 days
Diastolic Blood Pressure (DBP)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Omron M7 Intelli IT Automatic Blood Pressure Monitor；Measurement Method：Measured in a standard sitting position after the subject rests for 15 minutes, the measurement is repeated 3 times to take the average value；Measurement Unit：Millimeter of mercury (mmHg)
Baseline to 90 days
Body Fat Percentage
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Tanita MC-780 MA Bioelectrical Impedance Analysis Instrument；Measurement Method：Measured after more than 10 hours of fasting and avoiding exercise, alcohol and caffeine for more than 4 hours. The skin electrodes are cleaned before measurement, and the measurement is repeated 3 times to take the average value；Measurement Unit：Percentage (%)
Baseline to 90 days
Muscle Mass Percentage
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Tanita MC-780 MA Bioelectrical Impedance Analysis Instrument；Measurement Method：Measured after more than 10 hours of fasting and avoiding exercise, alcohol and caffeine for more than 4 hours. The skin electrodes are cleaned before measurement, and the measurement is repeated 3 times to take the average value；Measurement Unit：Percentage (%)
Baseline to 90 days
Maximal Oxygen Consumption (VO₂max)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Treadmill + Physio-Dyne Instrument Corp. MAX II Metabolic System + Polar H10 Heart Rate Monitor；Measurement Method：The modified Bruce protocol is adopted, the treadmill is subjected to incremental load exercise until exhaustion, and respiratory gas exchange variables and heart rate are recorded in real time；Measurement Unit：Milliliter per kilogram per minute (mL/kg/min)
Baseline to 90 days

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Fasting Blood Glucose
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Bayer AG Contour Plus Blood Glucose Meter；Measurement Method：Venous blood is collected after the subject fasts for 10 hours and detected immediately；Measurement Unit：Millimole per liter (mmol/L)
Baseline to 90 days
Glycated Hemoglobin (HbA1c)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Roche cobas® b 101 Analyzer；Measurement Method：Venous blood is collected on an empty stomach, and serum is separated for instrument detection；Measurement Unit：Percentage (%)
Baseline to 90 days
Fasting Insulin
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Mercodia Uppsala Enzyme-Linked Immunosorbent Assay (ELISA) Kit；Measurement Method：Venous blood is collected on an empty stomach, plasma is separated and detected by double replicate ELISA；Measurement Unit：Milliunit per liter (mU/L)
Baseline to 90 days
Homeostatic Model Assessment for Insulin Resistance (HOMA-IR)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Bayer AG Contour Plus Blood Glucose Meter + Mercodia Uppsala Enzyme-Linked Immunosorbent Assay (ELISA) Kit；Measurement Method：Calculated by the formula: HOMA-IR = (Fasting Blood Glucose × Fasting Insulin) / 22.5；Measurement Unit：No unit
Baseline to 90 days
Homeostatic Model Assessment for Beta Cell Function (HOMA-β)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Bayer AG Contour Plus Blood Glucose Meter + Mercodia Uppsala Enzyme-Linked Immunosorbent Assay (ELISA) Kit；Measurement Method：Calculated by the formula: HOMA-β = (20 × Fasting Insulin) / (Fasting Blood Glucose - 3.5)；Measurement Unit：No unit
Baseline to 90 days
Total Cholesterol (TC)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Roche cobas® c 111 Analyzer；Measurement Method：Venous blood is collected on an empty stomach, and serum is separated for instrument detection；Measurement Unit：Millimole per liter (mmol/L)
Baseline to 90 days
Triglycerides (TG)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Roche cobas® c 111 Analyzer；Measurement Method：Venous blood is collected on an empty stomach, and serum is separated for instrument detection；Measurement Unit：Millimole per liter (mmol/L)
Baseline to 90 days
High-Density Lipoprotein (HDL)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Roche cobas® c 111 Analyzer；Measurement Method：Venous blood is collected on an empty stomach, and serum is separated for instrument detection；Measurement Unit：Millimole per liter (mmol/L)
Baseline to 90 days
Low-Density Lipoprotein (LDL)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Roche cobas® c 111 Analyzer；Measurement Method：Venous blood is collected on an empty stomach, and serum is separated for instrument detection；Measurement Unit：Millimole per liter (mmol/L)
Baseline to 90 days
Leptin
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：ImmunoDiagnostics Limited / Thermo Fisher Scientific Enzyme-Linked Immunosorbent Assay (ELISA) Kit；Measurement Method：Venous blood is collected on an empty stomach, plasma is separated and detected by double replicate ELISA；Measurement Unit：Nanogram per milliliter (ng/ml)
Baseline to 90 days
Ghrelin
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Bio-Rad Hercules California Luminex Assay Kit；Measurement Method：Venous blood is collected on an empty stomach, plasma is separated and detected by magnetic bead-based Luminex assay；Measurement Unit：Picogram per milliliter (pg/ml)
Baseline to 90 days
C-Reactive Protein (CRP)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：ImmunoDiagnostics Limited / Thermo Fisher Scientific Enzyme-Linked Immunosorbent Assay (ELISA) Kit；Measurement Method：Venous blood is collected on an empty stomach, plasma is separated and detected by double replicate ELISA；Measurement Unit：Microgram per milliliter (ug/ml)
Baseline to 90 days
Plasminogen Activator Inhibitor-1 (PAI-1)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Bio-Rad Hercules California Luminex Assay Kit；Measurement Method：Venous blood is collected on an empty stomach, plasma is separated and detected by magnetic bead-based Luminex assay；Measurement Unit：Picogram per milliliter (pg/ml)
Baseline to 90 days
Gut Microbiota Composition (Phylum/Class/Genus level)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Omega BIO-TEK Norcross E.Z.N.A.® Stool DNA Kit + BGI Genomics 16S/18S/ITS Amplicon Metagenomic Sequencing Platform；Measurement Method：Fecal samples are provided by subjects on an empty stomach, transported on ice within 2 hours or frozen at -80℃; microbial DNA is extracted for 16S rRNA amplicon sequencing, and taxonomic composition is analyzed by software such as DADA2 and phyloseq；Measurement Unit：Relative abundance (%) / No unit (sequencing read count)
Baseline to 90 days
Microbial Differential Abundance (Enterocloster/Gemella)
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：BGI Genomics 16S/18S/ITS Amplicon Metagenomic Sequencing Platform + R Language (emmeans/vegan package)；Measurement Method：Analyzed by Δabundance (post-intervention - pre-intervention), combined with Analysis of Covariance (ANCOVA) and Permutational Multivariate Analysis of Variance (PERMANOVA) statistical tests；Measurement Unit：No unit (standardized abundance value)
Baseline to 90 days
Short-Chain Fatty Acids (SCFAs) Targeted Metabolomics Detection
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Thermo ScientificTM TSQ Altis Mass Spectrometer + Thermo Scientific Vanquish TM Flex Ultra-High Performance Liquid Chromatograph + Waters ACQUITY UPLC BEH C18 Chromatographic Column；Measurement Method：Prepare SCFA standards and isotope internal standards, extract biological sample metabolites. UHPLC-MS/MS detection with gradient elution (40°C, 2μL injection, 0.3mL/min flow rate), ESI negative ion MRM mode; validate via linearity, precision, accuracy, stability and QC. Quantify with standard/internal standard ratio standard curve; conduct PCA, clustering, KEGG annotation and differential metabolite screening；Measurement Unit：nanogram per milliliter (ng/mL) / microgram per milliliter (ug/mL)
Baseline to 90 days
Total Daily Energy Intake
Tidsramme: Baseline to 90 days

Full Name of Measurement Tool：Dietary Record（MyFitnessPal APP）； trained dietitians calculate total daily energy intake using nutrient databases; compliance is assessed during study visits；Measurement Unit：Kilocalorie per day (kcal/d)
Baseline to 90 days

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Beijing Sport University

Etterforskere

  • Hovedetterforsker: Chang Liu, Beijing Sport University, Beijing, Beijing 100084

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 (Antatt)

1. november 2026

Primær fullføring (Antatt)

1. januar 2027

Studiet fullført (Antatt)

1. mars 2027

Datoer for studieregistrering

Først innsendt

7. november 2026

Først innsendt som oppfylte QC-kriteriene

7. november 2026

Først lagt ut (Faktiske)

13. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

13. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

7. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • IRB-2026097

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Nei

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