NCT07067918

Brief Summary

This study examined the effects of two different types of jump training-one focused on the upper body and the other on the lower body-on the athletic performance of elite male kickboxers. Over a 12-week period, athletes followed specific exercise programs designed to increase explosive power in either the arms or the legs, while continuing their normal kickboxing training. Researchers used a special performance test called the Kickboxing Anaerobic Speed Test (KAST), which measures how fast and powerfully athletes can punch and kick over a short time. The results showed that while both training methods improved performance, the group that did lower-body jump training (e.g., leg-focused exercises) showed greater gains. This suggests that strong and explosive legs play a key role in powerful strikes and quick movements in kickboxing. In summary, lower-body jump training is more effective than upper-body jump training in improving sport-specific speed and power in elite male kickboxers.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
32

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 15, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 22, 2025

Completed
19 days until next milestone

Study Completion

Last participant's last visit for all outcomes

June 10, 2025

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

July 7, 2025

Completed
9 days until next milestone

First Posted

Study publicly available on registry

July 16, 2025

Completed
Last Updated

July 16, 2025

Status Verified

July 1, 2025

Enrollment Period

3 months

First QC Date

July 7, 2025

Last Update Submit

July 15, 2025

Conditions

Keywords

Plyometricsanaerobic performancesport-specificKASTcombat sports

Outcome Measures

Primary Outcomes (2)

  • Best score time in the Kickboxing Anaerobic Speed Test (KASTbest)

    The best completion time for a five-technique striking sequence performed at maximum intensity. A lower score indicates better anaerobic performance.

    Measured at baseline and 12 weeks

  • Performance Decrement Index (PDI)

    The ratio between the athlete's best performance time and cumulative performance across sets, used to assess fatigue resistance during high-intensity intermittent effort.

    Measured at baseline and 12 weeks

Secondary Outcomes (1)

  • Total time in the Kickboxing Anaerobic Speed Test (KASTtotal)

    Measured at baseline and 12 weeks

Study Arms (2)

Arm 1 - Upper Body Plyometric Group

EXPERIMENTAL

Participants in this group completed a 12-week upper-body plyometric training program including medicine ball throws, plyometric push-ups, and explosive arm drills.

Other: Upper Body Plyometric Training

Arm 2 - Lower Body Plyometric Group

EXPERIMENTAL

Participants in this group followed a 12-week lower-body plyometric training protocol including squat jumps, depth jumps, and lateral hurdle jumps.

Other: Lower Body Plyometric Training

Interventions

Upper Body Plyometric Training - Intervention Description: A 12-week upper-body plyometric training protocol designed to enhance explosive upper-extremity power in elite male kickboxers. Exercises included medicine ball chest passes, overhead throws, plyometric push-ups, clap push-ups, and rotational medicine ball throws. Training was performed three times per week (20-30 minutes per session) in addition to regular kickboxing practice.

Arm 1 - Upper Body Plyometric Group

Lower Body Plyometric Training - Intervention Description: A 12-week lower-body plyometric training program targeting explosive leg strength and anaerobic performance in elite male kickboxers. The program included countermovement jumps, squat jumps, lateral hurdle jumps, plyometric bounding, tuck jumps, and depth jumps. Sessions were conducted three times per week (20-30 minutes each), alongside regular kickboxing training.

Arm 2 - Lower Body Plyometric Group

Eligibility Criteria

Age18 Years - 35 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Male participants aged 18 to 35 years
  • At least 5 years of structured kickboxing training
  • Active competition status within the last 3 years
  • Minimum of one national or international medal in the past 2 years
  • Provided written informed consent

You may not qualify if:

  • No formal kickboxing training history
  • No competitive activity in the last 3 years
  • No documented medal success at national or international level
  • Failure to meet informed consent or ethical participation requirements

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istanbul University Cerrahpaşa

Istanbul, 34320, Turkey (Türkiye)

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Participants were randomly assigned to one of two parallel groups: upper-body plyometric training or lower-body plyometric training. Both groups continued their standard kickboxing training while following a 12-week intervention protocol.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor, Ph.D.

Study Record Dates

First Submitted

July 7, 2025

First Posted

July 16, 2025

Study Start

February 15, 2025

Primary Completion

May 22, 2025

Study Completion

June 10, 2025

Last Updated

July 16, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations