About this trial
This study aims to examine the acute effects of a low-volume bilateral pogo jump protocol on CMJ and DJ performance, as well as its feasibility and immediate tolerance in adolescent male basketball players.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Regular structured basketball training.
Ability to understand instructions.
Safe execution of the jump tests after familiarization.
Written informed consent from a parent or legal guardian, and assent from the minor.
Disqualifiers
Acute injury limiting participation.
Lower-limb pain aggravated by jumping.
Recent surgery or a relevant health condition.
Inability to perform the test technique safely.
Trial design
Crossover
Treatments tested in this trial
POGO-JUMP
Other interventionParticipants will perform 3 sets of 8 consecutive bilateral pogo jumps (24 ground contacts in total), with 1 min of passive recovery between sets. They will be instructed to jump with maximal intent, minimize ground contact time, and maintain relative knee extension while avoiding a deep countermovement.
CONTROL
Other interventionParticipants will walk continuously at a comfortable, low intensity for approximately 3 min, without running, jumping, or abrupt changes of pace.
Treatment groups
Trial outcomes
Primary outcomes
Countermovement jump (CMJ) height (cm)
Participants will stand upright with their hands on their hips and perform a self-selected countermovement followed immediately by a maximal vertical jump. Jump height (cm) will be calculated from flight time recorded using the Chronojump Boscosystem contact platform.
Drop jump (DJ) height (cm)
Participants will step off an 18 cm box, land with both feet simultaneously, and immediately perform a maximal vertical jump while minimizing ground contact time. Jump height (cm) will be calculated from flight time recorded using the Chronojump Boscosystem contact platform.
Sponsors and contacts
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