The Effects of an 8-Week Exer-Genie-Assisted Speed and ABC Drill Training Program on Speed, Hamstring Strength, and Vertical Jump Performance in Female Football Players

NCT07274566 | Completed DMC

• 1 other identifier: EXERGENIE-FOOTBALL-2025
• Study Type: interventional
• Target: 37
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to examine the effects of an eight-week Exer-Genie®-assisted speed and agility-balance-coordination (ABC drill) training program on sprint performance, hamstring muscle strength, and vertical jump ability in young female football players. A total of 37 licensed female football players competing in the Turkish Women's Second League participated in the study. Participants were randomly assigned to an experimental group (n = 20) or a control group (n = 17). The study evaluates whether this integrated training approach enhances acceleration, force production, and neuromuscular control compared to regular team training alone.

Conditions

Hamstring Muscles; Athletic Performance; Muscle Strength

Keywords

Resistance Training; Athletic Performance; Football

Outcome Measures

Primary Outcomes (3)

• Sprint Performance (30m Sprint Test)

  Sprint performance was evaluated using the SmartSpeed electronic timing gate system. Time was recorded in seconds for 0-10 m (acceleration), 10-30 m (transition), and full 30 m distances. Lower time indicates better performance.

  Baseline (Pre-test) and immediately after the 8-week intervention (Post-test)

• Hamstring Muscle Strength (NordBord ISO Prone)

  Isometric hamstring strength and impulse (force-time curve area) were assessed using the NordBord Hamstring Testing System with the ISO Prone protocol (0 degrees knee extension). Measured in Newtons (N) and N.s.

  Baseline (Pre-test) and immediately after the 8-week intervention (Post-test)

• Vertical Jump Height (Countermovement Jump)

  Lower-limb explosive power was assessed via the Countermovement Jump (CMJ) test using ForceDecks force platforms. Jump height was recorded in centimeters (cm).

  Baseline (Pre-test) and immediately after the 8-week intervention (Post-test)

Study Arms (2)

Experimental Group

EXPERIMENTAL

Participants in this group performed an Exer-Genie®-assisted sprint and agility-balance-coordination (ABC drill) training program twice per week for eight weeks in addition to their warm-up routine.

Other: Exer-Genie® Training Protocol

Control Group

NO INTERVENTION

Participants in this group continued with their regular team football training only and did not receive the Exer-Genie® resistance training.

Interventions

Exer-Genie® Training Protocol OTHER

The protocol consisted of six 30-m sprint runs performed with resistance applied using the 60-m Exer-Genie® device. Resistance was set at 10% of the athlete's body weight. The training was conducted twice a week for 8 weeks.

Experimental Group

Eligibility Criteria

• Age: 11 Years - 17 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may qualify if:

• Female gender.
• Licensed football players competing in the Turkish Women's Second League.
• Regularly engaged in football training for at least two years.
• Aged between 11 and 17 years.

You may not qualify if:

• History of recent musculoskeletal injury.
• Any chronic health condition that could affect athletic performance.
• Irregular attendance to the training sessions during the study period.

Sponsors & Collaborators

• Istanbul Rumeli University: lead

Study Sites (1)

Istanbul Gedik University, Faculty of Sport Sciences, Indoor Sports Hall

Istanbul, Turkey (Türkiye)

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: PhD Student / Research Assistant

Model Details: "Participants are randomly assigned to either the experimental group (Exer-Genie training) or the control group (standard training)."

Study Record Dates

• First Submitted: November 28, 2025
• First Posted: December 10, 2025
• Study Start: April 10, 2025
• Primary Completion: June 10, 2025
• Study Completion: November 1, 2025
• Last Updated: December 10, 2025

Record last verified: 2025-11

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP
• Time Frame: Data will be available beginning immediately after publication of the study results.
• Access Criteria: Data will be shared with researchers who provide a methodologically sound proposal. Requests should be directed to the corresponding author (Yusufcan Keskin) via email.

Locations

TU (1)