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Effects of a 10-Week High-Intensity Interval Training Programme on Biochemical and Hormonal Responses in Elite Female Futsal Players

19. august 2026 oppdatert av: Shimal Hamza Hamad, Soran University

Temporal Dynamics of Biochemical and Hormonal Responses to Interval Training in Elite Female Futsal Players: A 10-Week Longitudinal Analysis Across Menstrual Cycle Phases

This study aims to investigate the biochemical, hormonal, and physiological adaptations to a 10-week periodized high-intensity interval training (HIIT) programme in elite female futsal players. The study will examine changes in aerobic fitness, blood lactate kinetics, muscle damage biomarkers, inflammatory markers, and reproductive hormones throughout the intervention. In addition, the influence of menstrual cycle phases on these physiological responses will be evaluated to improve understanding of sex-specific training adaptations and recovery. The findings are expected to contribute to evidence-based, individualized training and recovery strategies for female futsal athletes.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Female futsal is a high-intensity intermittent team sport requiring substantial aerobic and anaerobic fitness. Despite increasing participation of women in competitive sports, limited evidence exists regarding the biochemical and hormonal adaptations to structured interval training, particularly across different menstrual cycle phases. This prospective longitudinal study will recruit 32 elite female futsal players who will participate in a supervised 10-week periodized HIIT programme consisting of lactate threshold training, anaerobic intensification, and sport-specific interval training. Physiological assessments will include VO₂max, lactate threshold, blood lactate kinetics, creatine kinase, interleukin-6, C-reactive protein, cortisol, and reproductive hormones. Menstrual cycle phases will be monitored using validated menstrual tracking methods and hormonal confirmation. Outcomes will be assessed repeatedly throughout the intervention to determine temporal adaptations and the influence of menstrual cycle phase on training responses and recovery. The results are expected to support individualized, evidence-based training prescription for female athletes.

Studietype

Intervensjonell

Registrering (Faktiske)

32

Fase

  • Ikke aktuelt

Kontakter og plasseringer

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

Studiesteder

  • Irak
    • Erbil Governorate
      • Soran, Erbil Governorate, Irak, 44008
        • Soran Univeristy

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

  • Voksen

Tar imot friske frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Female futsal players aged 18-30 years.
  • Regular menstrual cycles.
  • Participants willing to complete all scheduled testing sessions across the study period.
  • Participants able to safely participate in the prescribed physical-performance testing and training programme.

Exclusion Criteria:

  • Pregnancy or breastfeeding.
  • Irregular menstrual cycles or diagnosed menstrual disorders.
  • Use of hormonal contraceptives or hormone therapy within the past 6 months.
  • Current musculoskeletal injury or any medical condition affecting physical performance.
  • Use of medications known to influence menstrual function, hormonal responses, or physical performance.
  • Use of performance-enhancing drugs or medications known to influence hormonal or biochemical responses.
  • History of endocrine, cardiovascular, or metabolic disorders.
  • Failure to complete all scheduled testing sessions.

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Annen
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Female Futsal Players
Female futsal players will undergo repeated standardized performance testing during different phases of the menstrual cycle. Assessments include agility, sprint speed, repeated sprint ability, explosive power, balance, and aerobic fitness. All participants receive the same testing protocol, and no therapeutic intervention is administered.
Atferdsmessig: Repeated Futsal Performance Testing Across Menstrual Cycle Phases Intervention Description Participants will undergo standardized futsal-specific performance assessments during different phases of the
Female futsal players will undergo standardized physical performance testing during different phases of the menstrual cycle. Assessments include agility, sprint speed, repeated sprint ability, explosive power, balance, and aerobic fitness. The study involves repeated performance assessments only, and no drug, device, surgical procedure, or therapeutic intervention will be administered.
Andre navn:
  • Futsal Performance Testing

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Mean Change from Baseline in Maximum Oxygen Uptake (VO₂max)
Tidsramme: Baseline and Week 10
Maximum oxygen uptake (VO₂max) measured during a graded incremental treadmill exercise test with respiratory gas analysis. Unit of Measure: mL·kg-¹·min-¹.
Baseline and Week 10
Mean Change from Baseline in Velocity at VO₂max (vVO₂max)
Tidsramme: Baseline and Week 10
Velocity at VO₂max (vVO₂max) measured during a graded incremental treadmill exercise test. Unit of Measure: km/h.
Baseline and Week 10
Mean Change from Baseline in Lactate Threshold Velocity
Tidsramme: Baseline and Week 10
Lactate threshold velocity determined during incremental exercise testing. Lactate threshold velocity is defined as the running velocity corresponding to the lactate threshold. Unit of measure: km/h. Higher values indicate improved aerobic endurance.
Baseline and Week 10
Mean Change from Baseline in Resting Blood Lactate Concentration
Tidsramme: Baseline and Week 10
Resting blood lactate concentration measured from venous blood samples collected under standardized resting conditions before exercise. Unit of Measure: mmol/L. Lower concentrations indicate improved metabolic efficiency.
Baseline and Week 10
Mean Change from Baseline in Lactate Clearance Rate
Tidsramme: Baseline and Week 10
Lactate clearance rate calculated as the rate of decline in blood lactate concentration from serial post-exercise measurements obtained during standardized recovery. The calculated clearance rate is reported as one value in mmol/L/min. Higher clearance rates indicate improved metabolic recovery.
Baseline and Week 10

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Serum Creatine Kinase (CK) Concentration at Predefined Recovery Time Points
Tidsramme: Baseline; immediately post-exercise; 24 hours; 48 hours; and 72 hours
Serum creatine kinase concentration measured at baseline and predefined post-exercise recovery time points. Repeated CK concentrations are evaluated across the predefined sampling time points. Unit of Measure: U/L.
Baseline; immediately post-exercise; 24 hours; 48 hours; and 72 hours
Interleukin-6 (IL-6)
Tidsramme: Baseline; immediately post-exercise; and recovery period
Serum interleukin-6 concentration measured as an indicator of exercise-induced inflammatory response. Unit of Measure: pg/mL. Lower resting concentrations and appropriate acute exercise responses indicate improved inflammatory regulation.
Baseline; immediately post-exercise; and recovery period
Serum Cortisol
Tidsramme: Baseline; menstrual phase-specific assessments; and Week 10
Serum cortisol concentration measured to evaluate physiological stress responses associated with high-intensity interval training. Unit of Measure: µg/dL.
Baseline; menstrual phase-specific assessments; and Week 10
Serum Estradiol
Tidsramme: Phase-specific assessments during the intervention
Serum estradiol concentration measured to characterize hormonal status during different phases of the menstrual cycle. Unit of Measure: pg/mL.
Phase-specific assessments during the intervention
Serum Progesterone
Tidsramme: Phase-specific assessments during the intervention
Serum progesterone concentration measured to confirm menstrual cycle phase and evaluate hormonal responses during the intervention. Unit of Measure: ng/mL.
Phase-specific assessments during the intervention

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Creatine Kinase (CK) Recovery Half-Life
Tidsramme: Immediately post-exercise through 72 hours
Time required for serum creatine kinase concentration to decrease by 50% during the post-exercise recovery period. Unit of Measure: hours.
Immediately post-exercise through 72 hours
Area Under the Concentration-Time Curve of Serum Creatine Kinase (CK)
Tidsramme: Immediately post-exercise through 72 hours
Area under the serum creatine kinase concentration-time curve calculated from serum CK concentrations measured during the post-exercise recovery period. Unit of Measure: U/L·h.
Immediately post-exercise through 72 hours

Samarbeidspartnere og etterforskere

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Sponsor

Soran University

Publikasjoner og nyttige lenker

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Generelle publikasjoner

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)

2. februar 2026

Primær fullføring (Faktiske)

1. juli 2026

Studiet fullført (Faktiske)

1. juli 2026

Datoer for studieregistrering

Først innsendt

31. juli 2026

Først innsendt som oppfylte QC-kriteriene

14. august 2026

Først lagt ut (Faktiske)

19. august 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

20. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

19. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Andre studie-ID-numre

  • SORANU-HIIT-2026-001
  • Ethics Approval Number (Annen identifikator: Soran University Institutional Review Board)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

UBESLUTTE

IPD-planbeskrivelse

A decision regarding sharing de-identified individual participant data collected in this study has not yet been finalized. If data sharing is approved, only de-identified data may be considered for sharing after study completion, subject to institutional policies, ethical requirements, participant confidentiality, and applicable data-protection requirements.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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