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Effect of Ischemic Preconditioning on Lower Extremity Motor Ability and Recovery in Basketball Players During Post-Match Recovery Period

21. maj 2026 opdateret af: Ziyue Ou, Guangzhou Sport University

Effect of Ischemic Preconditioning on Lower Extremity Motor Ability and Recovery in Basketball Players During Post-Match Recovery Period: A Randomized Controlled Trial

This study aimed to evaluate the effects of ischemic preconditioning on lower limb explosive power and post-exercise recovery in basketball players during a 6-week post-season recovery training period. Thirty-four male collegiate basketball players were randomly assigned to either an IPC group or a placebo control group. Bilateral lower limb IPC intervention (3 cycles, each consisting of 5-minute ischemia at 220 mmHg and 5-minute reperfusion, twice per week for 6 weeks) was administered before routine basketball training sessions. Lower limb explosive power, as well as physiological, biochemical, and morphological indices, were assessed before and after the intervention.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Background: Lower limb explosive power is crucial for basketball performance, and effective recovery strategies are key to maintaining training quality. Ischemic preconditioning (IPC) is a non-invasive, economical, and safe method that triggers endogenous protective mechanisms through brief ischemia-reperfusion cycles, showing potential in enhancing athletic performance and metabolic efficiency. However, the effects of IPC on lower limb explosive power during post-match recovery in basketball players remain understudied. Objective: To investigate the effects of a 6-week repeated remote ischemic preconditioning on lower limb explosive power, phosphagen energy system capacity, and physical recovery in male college basketball players. Design: A randomized, parallel-group, placebo-controlled trial with concealed allocation. Participants were randomly assigned to either the IPC experimental group (n=17) or the placebo control group (n=17). Both groups participated in the same regular basketball sessions. The experimental group received bilateral thigh IPC intervention (3×5 minutes, 220 mmHg) before each training session, while the control group received a placebo intervention (3×5 minutes, 20 mmHg). The intervention was administered twice a week for 6 weeks (30 minutes per session). Secondary endpoints: Urinary creatinine coefficient, 10-second maximal load test (blood lactate increment, peak power, mean power), hematological parameters (red blood cell count, hemoglobin, hematocrit, white blood cell count), serum testosterone, cortisol, testosterone/cortisol ratio, body composition (body weight, body fat percentage, BMI), and training load monitoring (heart rate, RPE, urine protein).

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

34

Fase

  • Ikke anvendelig

Kontakter og lokationer

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Studiekontakt

Studiesteder

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Male basketball students at Guangzhou Sport University.
  • Regular participants in basketball training/practice.
  • Healthy adults without cardiovascular, hepatic, renal, digestive, neurological, or metabolic diseases.
  • Blood pressure within normal range.
  • No history of lower extremity musculoskeletal injury within the past 6 months.
  • Not currently using any performance-enhancing substances or medications affecting hormones/metabolism.
  • Voluntary participation with signed informed consent.

Exclusion Criteria:

  • Presence of acute or chronic diseases affecting exercise performance.
  • History of deep vein thrombosis or coagulation disorders.
  • Presence of skin lesions or infections at the thigh cuff placement site.
  • Participation in other concurrent lower extremity strength/power training programs outside the study.
  • Use of dietary supplements known to affect muscle metabolism within 4 weeks prior to enrollment.
  • Inability to complete the full 6-week intervention and testing protocol.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: IPC Group
Bilateral thigh compression was applied using a Theratools pneumatic cuff (T-bfr-0475). Three cycles, each consisting of 5 minutes of ischemia (pressure 220 mmHg) and 5 minutes of reperfusion (total 30 minutes), were performed before regular basketball training sessions. The intervention was conducted twice per week for 6 weeks. Cuff placement: at the inguinal crease of the thigh. Subject position: supine, alternating between left and right legs.
Enhed: Ischemic Preconditioning
Bilateral thigh compression was applied using a Theratools pneumatic cuff (T-bfr-0475). Three cycles, each consisting of 5 minutes of ischemia (pressure 220 mmHg) and 5 minutes of reperfusion (total 30 minutes), were performed before regular basketball training sessions. The intervention was conducted twice per week for 6 weeks. Cuff placement: at the inguinal crease of the thigh. Subject position: supine, alternating between left and right legs.
Aktiv komparator: Sham Control Group
Identical procedure to IPC group except cuff pressure maintained at 20 mmHg (non-ischemic), applied before regular basketball training. Twice weekly for 6 weeks.
Enhed: Placebo Ischemic Preconditioning
Identical procedure to IPC group except cuff pressure maintained at 20 mmHg (non-ischemic), applied before regular basketball training. Twice weekly for 6 weeks.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Squat Jump (SJ) height
Tidsramme: Baseline (Week 0) and Post-intervention (Week 8)
Change from baseline in lower extremity concentric explosive power measured by Smart Jump portable contact mat (cm).
Baseline (Week 0) and Post-intervention (Week 8)
Countermovement Jump (CMJ) height
Tidsramme: Baseline and Week 8
Change from baseline in lower extremity reactive explosive power without arm swing (cm).
Baseline and Week 8
Standing Long Jump
Tidsramme: Baseline and Week 8
Change from baseline in lower extremity horizontal explosive power (cm).
Baseline and Week 8
T-Test (T-run)
Tidsramme: Baseline and Week 8
Change from baseline in multi-directional agility performance (seconds).
Baseline and Week 8
3/4 Court Sprint
Tidsramme: Baseline and Week 8
Change from baseline in linear sprint speed over 3/4 basketball court distance (~21m, seconds).
Baseline and Week 8
Reactive Strength Index (RSI)
Tidsramme: Baseline and Week 8
Change from baseline in RSI derived from 30cm drop jump using Smart Jump system (m/s). The RSI was calculated as jump height divided by ground contact time, with higher values indicating better reactive strength capacity in athletes (i.e., shorter ground contact times and greater jump heights). The observed range of RSI in the present study was [minimum value]-[maximum value] m/s.
Baseline and Week 8

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Blood Lactate Accumulation
Tidsramme: Baseline and Week 8
Change in blood lactate accumulation during 10-second maximal load test (mmol/L).
Baseline and Week 8
Peak Power (10s Test)
Tidsramme: Baseline and Week 8
Change from baseline in peak power output during 10-second maximal load test on Monark 828E cycle ergometer (Watts).
Baseline and Week 8
Mean Power (10s Test)
Tidsramme: Baseline and Week 8
Change from baseline in mean power output during 10-second maximal load test (Watts).
Baseline and Week 8
Testosterone/Cortisol Ratio
Tidsramme: Baseline and Week 8
Change from baseline in T/C ratio (×10-²).
Baseline and Week 8

Samarbejdspartnere og efterforskere

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Sponsor

Guangzhou Sport University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

22. maj 2026

Primær færdiggørelse (Anslået)

15. juli 2026

Studieafslutning (Anslået)

15. juli 2026

Datoer for studieregistrering

Først indsendt

17. maj 2026

Først indsendt, der opfyldte QC-kriterier

17. maj 2026

Først opslået (Faktiske)

22. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

26. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • GZSU-IPC-BB-2024

Plan for individuelle deltagerdata (IPD)

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IPD-planbeskrivelse

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