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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 uppdaterad av: 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.

Studieöversikt

Detaljerad beskrivning

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).

Studietyp

Interventionell

Inskrivning (Beräknad)

34

Fas

  • Inte tillämpbar

Kontakter och platser

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Studiekontakt

Studieorter

Deltagandekriterier

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Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen

Tar emot friska volontärer

Ja

Beskrivning

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

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: 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.
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.
Identical procedure to IPC group except cuff pressure maintained at 20 mmHg (non-ischemic), applied before regular basketball training. Twice weekly for 6 weeks.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Squat Jump (SJ) height
Tidsram: 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
Tidsram: Baseline and Week 8
Change from baseline in lower extremity reactive explosive power without arm swing (cm).
Baseline and Week 8
Standing Long Jump
Tidsram: Baseline and Week 8
Change from baseline in lower extremity horizontal explosive power (cm).
Baseline and Week 8
T-Test (T-run)
Tidsram: Baseline and Week 8
Change from baseline in multi-directional agility performance (seconds).
Baseline and Week 8
3/4 Court Sprint
Tidsram: 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)
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Blood Lactate Accumulation
Tidsram: 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)
Tidsram: 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)
Tidsram: 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
Tidsram: Baseline and Week 8
Change from baseline in T/C ratio (×10-²).
Baseline and Week 8

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Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

22 maj 2026

Primärt slutförande (Beräknad)

15 juli 2026

Avslutad studie (Beräknad)

15 juli 2026

Studieregistreringsdatum

Först inskickad

17 maj 2026

Först inskickad som uppfyllde QC-kriterierna

17 maj 2026

Första postat (Faktisk)

22 maj 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

26 maj 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

21 maj 2026

Senast verifierad

1 maj 2026

Mer information

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