NCT07249203

Brief Summary

This study investigated the effects of resistance training applied with a velocity-based approach on selected motor skills in university-level athletes. Participants were randomly assigned to two groups: a velocity-based training (VBT) group and a percentage-based training (PBT) group. Both groups performed lower-body resistance exercises over an 8-week period, three times per week. Pre- and post-training assessments were conducted for countermovement jump (CMJ), sprint (20 m and 40 m), agility (505 test), and one-repetition maximum (1RM) squat performance. The aim of this study was to compare the effects of VBT and PBT on jump, sprint, agility, and strength performance. It was hypothesized that the VBT group would show greater improvements in motor skills compared to the PBT group.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2024

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

January 15, 2024

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 30, 2024

Completed
16 days until next milestone

Study Completion

Last participant's last visit for all outcomes

April 15, 2024

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

November 14, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

November 25, 2025

Completed
Last Updated

November 25, 2025

Status Verified

October 1, 2025

Enrollment Period

3 months

First QC Date

November 14, 2025

Last Update Submit

November 21, 2025

Conditions

Keywords

Velocity-based training, Speed, Agility, Maximal strength, Performance

Outcome Measures

Primary Outcomes (1)

  • Vertical Jump Height

    Countermovement jump height will be measured using a force platform. Jump height (cm) will be calculated from flight time.

    8 weeks (baseline to post-test)

Secondary Outcomes (7)

  • 20 m Sprint Time

    8 weeks

  • 40 m Sprint Time

    8 weeks

  • 505 Agility Test Time

    8 weeks

  • 1RM Back Squat Strength

    8 weeks

  • CMJ Peak Force

    8 weeks

  • +2 more secondary outcomes

Study Arms (2)

Percentage-Based Training (PBT) Group

EXPERIMENTAL

Participants in this group performed a resistance training program based on fixed percentages of their one-repetition maximum (1RM). The training load was adjusted weekly according to percentage-based progression over 8 weeks.

Behavioral: Percentage-Based Training (PBT)

Velocity-Based Training (VBT) Group

EXPERIMENTAL

Participants in this group performed the same resistance training exercises as the PBT group, but the training load and volume were adjusted according to movement velocity feedback using a linear position transducer. The intervention lasted for 8 weeks.

Behavioral: Velocity-Based Training (VBT)

Interventions

The percentage-based training (PBT) group performed the same resistance exercises as the VBT group for 8 weeks, three sessions per week. Training loads were prescribed according to a fixed percentage of each participant's one-repetition maximum (1RM). Exercises included squats, lunges, and other lower-body movements aimed at improving strength and power.

Percentage-Based Training (PBT) Group

The velocity-based training (VBT) group performed lower-body resistance exercises for 8 weeks, three sessions per week. Training loads were adjusted based on real-time barbell velocity feedback measured with a linear encoder. Exercises included squats, lunges, and other multi-joint movements. Each session focused on maintaining optimal movement speed for power development.

Velocity-Based Training (VBT) Group

Eligibility Criteria

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

You may qualify if:

  • Male university athletes aged 18-35 years
  • Regular participation in resistance training for at least 1 year
  • Free from any musculoskeletal injuries during the last 6 months
  • Willing to participate in all training sessions and testing procedures

You may not qualify if:

  • Current or recent musculoskeletal, neurological, or cardiovascular disorders
  • Missed more than two training sessions during the study period
  • Use of performance-enhancing drugs or supplements during the study
  • Any medical condition that prevents participation in resistance training

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istanbul Gelişim University

Istanbul, 34310, Turkey (Türkiye)

Location

Related Links

Study Officials

  • Serdar GÜR, PhD

    Istanbul Gelişim University, Faculty of Sports Sciences

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The study employed a parallel-group, randomized design. Participants were randomly assigned to either a percentage-based training (PBT) group or a velocity-based training (VBT) group. Both groups performed resistance training programs for 8 weeks, focusing on lower-body and upper-body exercises. The VBT group trained according to movement velocity feedback, while the PBT group followed loads based on fixed percentages of one-repetition maximum (1RM). Pre- and post-tests were conducted to evaluate changes in motor performance variables such as jump height, sprint time, and maximal strength.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 14, 2025

First Posted

November 25, 2025

Study Start

January 15, 2024

Primary Completion

March 30, 2024

Study Completion

April 15, 2024

Last Updated

November 25, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be shared. Summary data may be available from the corresponding author upon reasonable request.

Locations