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Completed

NCT Number: NCT07249203

Velocity-Based Resistance Training and Motor Skills in University Athletes

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.

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Key information

Conditions

Resistance Training Athletic Performance Motor Performance Velocity-based Training

Age range

18 year–35 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Istanbul Gelişim University

Istanbul, 34310, Turkey (Türkiye)

About this study

This randomized, parallel-group, interventional trial was designed to examine the effects of resistance training performed using a velocity-based approach on selected motor skills among trained university athletes.

A total of 20 male participants (aged 18-30 years) were randomly assigned into two groups:

Velocity-Based Training (VBT) group: performed squats, lunges, and similar lower-body exercises using individualized movement velocity feedback obtained from a linear encoder.

Percentage-Based Training (PBT) group: performed the same exercises based on traditional fixed-load percentages of one-repetition maximum (1RM).

Both training programs lasted 8 weeks and included three sessions per week. Pre- and post-tests included measurements of countermovement jump (CMJ) height and power, sprint times (20 m and 40 m), agility (505 test), and maximal squat strength (1RM).

The study was approved by the Istanbul Gelişim University Rectorate Ethics Committee (Approval No: 2024-01-144, Date: 12.01.2024) and conducted in accordance with the Declaration of Helsinki. All participants provided written informed consent prior to participation.

The primary outcome of interest was the change in CMJ performance. Secondary outcomes included sprint, agility, and 1RM strength improvements.

The results are expected to contribute to the understanding of how velocity-based resistance training affects neuromuscular adaptations and physical performance in athletes compared to traditional percentage-based training methods.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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

Treatment and study plan

Percentage-Based Training (PBT)

Behavioral

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.

Velocity-Based Training (VBT)

Behavioral

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.

Primary outcomes

  1. Vertical Jump Height

    Time frame: 8 weeks (baseline to post-test)

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

Secondary outcomes

  1. 20 m Sprint Time

    Time frame: 8 weeks

    Sprint speed will be measured using a 20-meter sprint test with electronic timing gates.

  2. 40 m Sprint Time

    Time frame: 8 weeks

    Sprint performance will be measured using a 40-meter sprint test with electronic timing gates.

  3. 505 Agility Test Time

    Time frame: 8 weeks

    Change of direction ability will be assessed using the 505 agility test.

  4. 1RM Back Squat Strength

    Time frame: 8 weeks

    Maximal lower-body strength will be assessed using the one-repetition maximum (1RM) back squat test.

  5. CMJ Peak Force

    Time frame: 8 weeks

    Peak force (N) during countermovement jump will be measured using a force platform.

  6. CMJ Peak Power

    Time frame: 8 weeks

    Peak power (W) will be calculated using data obtained from the force platform and linear encoder.

  7. CMJ Peak Velocity

    Time frame: 8 weeks

    Peak velocity (m/s) during countermovement jump will be measured using a linear encoder.

Sponsors and collaborators

Lead sponsor

Istanbul Gelisim University

Other

Registry information

Official study title

Effects of Resistance Training Applied With a Velocity-Based Approach on Selected Motor Skills

Acronym: VBT

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Nov 25, 2025
Registry last updated
Nov 25, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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