NCT07421986

Brief Summary

Here is the complete Brief Summary entry in a single paragraph, written in plain language, and excluding the study results (as requested), but maintaining academic rigor in describing the study design: The purpose of this study is to evaluate the effect of a 4-week short-term eccentric strengthening program using elastic bands on both hip adductor muscle strength and agility performance in young male basketball players. For this randomized controlled trial, twenty-one healthy young male athletes were separated by chance into two conditions: a training group, which performed the 4-week elastic band protocol in addition to their regular basketball training, and a control group, which engaged exclusively in their routine training. The primary measurements for comparison were maximal eccentric and isometric hip adduction strength (using a hand-held dynamometer) and the agility T-test. It is hypothesized that this targeted eccentric strengthening will lead to a significant enhancement of both hip adduction strength and overall athletic performance in the intervention group

Trial Health

87
On Track

Trial Health Score

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

Enrollment
21

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 10, 2024

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 10, 2024

Completed
20 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2024

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

February 12, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

February 19, 2026

Completed
Last Updated

February 19, 2026

Status Verified

February 1, 2026

Enrollment Period

1 month

First QC Date

February 12, 2026

Last Update Submit

February 12, 2026

Conditions

Keywords

elastic bandresistance traininglower limb musclehip adductor

Outcome Measures

Primary Outcomes (1)

  • Maximal Eccentric Hip Adduction Strength (EHAD)

    Maximum force (in kilograms) produced during an eccentric contraction of the hip adductor muscles, measured using a hand-held dynamometer (HHD) in a side-lying position on the dominant leg.

    Baseline (Pre-intervention) and 4 Weeks (Post-intervention)

Secondary Outcomes (3)

  • Maximal Isometric Hip Adduction Strength (IHAD)

    Baseline (Pre-intervention) and 4 Weeks (Post-intervention)

  • Isometric Hip Abduction Strength (IHAB)

    Baseline (Pre-intervention) and 4 Weeks (Post-intervention)

  • Agility T-test Time

    Baseline (Pre-intervention) and 4 Weeks (Post-intervention)

Study Arms (2)

Training group, Elastic Band Training Group, Eccentric Strengthening Group

EXPERIMENTAL

Four-week eccentric and isometric hip-adduction training using elastic bands. Training sessions were supervised group sessions performed 2-3 times per week (2x/week in week 1; 3x/week in weeks 2-4) prior to regular basketball training. The exercise was performed in a standing position using elastic bands. Each repetition involved a 3-second concentric contraction, a 2-second isometric contraction, and a 3-second eccentric (hip-adduction) movement until full hip-abduction. The training load progressed from 3 sets of 15 RM in week 1, to 3 sets of 10 RM in weeks 2-3, and finally 3 sets of 8 RM in week 4. Both legs were trained

Behavioral: Eccentric Hip Adductor Strengthening with Elastic Bands

Contro group (CG), Regular Training Control

NO INTERVENTION

The Control Group (CG) continued with their regular basketball training. This included five basketball training sessions and one competitive game per week, which was the same frequency as the training group.

Interventions

The training was performed in a standing position, focusing on eccentric hip adduction. The participant started from full hip-abduction. A single repetition consisted of a 3-second concentric contraction (adduction), followed by a 2-second isometric contraction, and then a 3-second eccentric movement (abduction) back to full hip-abduction, with a 2-second pause before the next repetition. The intervention spanned 4 weeks, with the training frequency and intensity progressively increasing. Load (elastic band resistance and fixation distance) was individually determined one week prior to the intervention based on repetition maximum (RM) sets. During Week 1, participants trained 2 times per week, performing 3 sets per leg at 15 RM. This progressed to 3 sessions per week for Weeks 2 and 3, with the load increasing to 10 RM (3 sets per leg). Finally, in Week 4, the frequency remained at 3 sessions per week, and the intensity was further increased to 8 RM (3 sets per leg).

Training group, Elastic Band Training Group, Eccentric Strengthening Group

Eligibility Criteria

Age15 Years - 18 Years
Sexmale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Healthy young male basketball players.
  • Must be a participant in a sub-elite basketball team.
  • Age: 15-18 years

You may not qualify if:

  • Injury and/or pain in the knee, hip, groin, and/or lower back within the last six months
  • Previous history of hip-adductor exercises performed in the preceding six months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Sport and Physical Education

Niš, 18000, Serbia

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

February 12, 2026

First Posted

February 19, 2026

Study Start

January 10, 2024

Primary Completion

February 10, 2024

Study Completion

March 1, 2024

Last Updated

February 19, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Individual participant data (IPD) will not be shared with other researchers. All data used to generate the findings is already provided within the published manuscript and supplementary information files.

Locations