Effects of Drop Jump During Warm-up on Athletic Performance and Ankle Stability in Young Basketball Players
Effects of Drop Jump During Warm-up on Jumping Ability, Sprint Performance and Ankle Landing Stability: A Randomized Controlled Study
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Palermo
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Palermo, Palermo, Italien, 90144
- University of Palermo
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Active participation in competitive training programs (at least 7 hours per week), at least one year of experience in competitions organized by the Italian Basketball Federation, and no recent injuries.
Exclusion Criteria:
- Presence of current or not fully recovered injuries to the ankle or foot, and irregular participation in training sessions within the three weeks preceding the study.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Eksperimentel: Drop Jump (DJ)
The participants performed a multi-phase warm-up and then completed 3 sets of 5 repetitions of drop jumps with a 3-minute rest period, twice a week for a total of 8 weeks.
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Three sets, each consisting of 5 repetitions with 3-minute breaks between sets, to be performed twice a week.
During each DJ trial, the participants were asked to perform a maximum vertical jump with their hands at their sides as soon as possible after touching the ground.
They were also given 15 seconds to climb back onto the drop and perform another trial.
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Ingen indgriben: Control Group (CG)
The participants followed the same full warm-up protocol as the experimental group, with the exception of the drop jump
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Counter Movement Jump (CMJ)
Tidsramme: At the beginning of enrollment ( Baseline, T0) and the end of the 8-week treatment (T1)
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Initially, the athlete stands upright on a flat surface or force platform, feet shoulder-width apart, hands on hips (to eliminate arm swing).
Without a pause, the athlete performs a quick downward movement (countermovement) by bending the knees and hips, then immediately jumps vertically as high as possible.
The athlete lands in an upright position on the same spot, trying to absorb the impact with knees slightly bent.
Jump height and flight time is recorded using an optical system, Optojump™ system(Microgate, Bolzano, Italy) connected to a personal computer with dedicated software(OptojumpTM Next software).
The system consists of two optical bars, a receiver and a transmitter, positioned 1m apart.
The bars identify ground contact time(with a precision of 1ms) and then convert non-contact time into cm.
Based on recommendations on optimal jump height (20 to 60cm).
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At the beginning of enrollment ( Baseline, T0) and the end of the 8-week treatment (T1)
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Ankle Landing Stability
Tidsramme: At the beginning of enrollment ( Baseline, T0) and the end of the 8-week treatment (T1)
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Ankle stability was assessed using a functional monopodalic protocol, which involved four jumps on one foot: two per leg, both frontally and laterally.
These jumps were performed by stepping over an adjustable obstacle set at 70% of the maximum height reached on a pressure platform (SensorMedica freeMed 40×40, Guidonia Montecelio, Italy).
The platform has an active sensory surface of 40×40 cm with a thickness of only 8 mm and a low weight of approximately 4 kg.
Inside, there are resistive sensors coated in 24K gold on conductive rubber, with a density of approximately 10,000 sensors/m².The acquisition frequency is high, up to 400 Hz, allowing for detailed dynamic analysis, and the sensors have a life cycle of over 1,000,000 cycles of use
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At the beginning of enrollment ( Baseline, T0) and the end of the 8-week treatment (T1)
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Sprint Performance
Tidsramme: At the beginning of enrollment ( Baseline, T0) and the end of the 8-week treatment (T1)
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Two cones were placed 10 meters apart.
The participants were then asked to perform 3 sprints, with 3-minute recovery periods in between.
A manual stopwatch was used, which was started exactly when the operator gave the start signal and stopped exactly as the subject passed the second cone.
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At the beginning of enrollment ( Baseline, T0) and the end of the 8-week treatment (T1)
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 62141-2025-3
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
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