Dynamic Strength Index-based Intervention in Basketball.

NCT06094075 | Completed

• 1 other identifier: DSI_Intervention_FVZ
• Study Type: interventional
• Target: 46
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this randomized controlled trial will be to determine the effectiveness of the dynamic strength index (DSI) in optimizing training programs to improve physical performance proxies (sprinting, jumping, and CoD) in basketball players. Subjects will be randomly allocated to one of two groups: the intervention group and the control group. Measurement and intervention will occur during a 7-week in-season period, right before the play off starts. Throughout this period, all participants will engage in an average of 10 hours of basketball training per week, which will comprise 5 basketball sessions and 2 strength training sessions. In addition, they are anticipated to play 2 games weekly. A pre-test will be performed one week before the first training session, and post-tests will be performed in the week after the training sessions have finished. Athletes will perform both testing sessions at the same time of the day (± 2 hours). Each athlete will perform a 20-m sprint test, with timing gates positioned at every 5 m distance, a 505 CoD test, countermovement jump (CMJ), and isometric mid-thigh pull (IMTP). Based on CMJ peak force and IMTP peak force data, we will calculate DSI. Based on the average DSI value, the participants in the intervention group will be divided into two groups - strength group and ballistic group.

Conditions

Sports; Basketball; Strength Training

Outcome Measures

Primary Outcomes (3)

• 20 m Sprint performance

  20 m sprint test in seconds

  Baseline and after 5 weeks.

• Change of direction performance

  Standardized 505-agility test

  Baseline and after 5 weeks.

• Jumping ability

  Jump height during jumps with countermovement

  Baseline and after 5 weeks.

Study Arms (2)

DSI-based training group

EXPERIMENTAL

This group will perform resistance exercises based in their DSI values.

Other: Resistance training based on DSI value

Normal training group

ACTIVE COMPARATOR

This group will perform a normal, typical resistance exercise program

Other: Normal training group

Interventions

Resistance training based on DSI value OTHER

The intervention consist of modifying the ongoing resistance exercises. Those with low DSI values will perform ballistics, explosive exercises. Those with high DSI will perform heavy-load training. The resistance training program will consist of 2 sessions per week for 5 weeks (10 sessions in total). The sessions will be separated by a minimum of 48 hours. The strength training group will consist mostly of exercises with high load, whereas the ballistic training group will perform ballistic exercises with low load or without any additional load. The training principle will be the same for both subgroups, consisting of 3 exercises per training session and a total of 6 exercises per week, with four of the exercises being bilateral, one unilateral, and one quasi-unilateral (Bulgarian split squat and scissor jumps).

DSI-based training group

Normal training group OTHER

The participants will do a general training program (not based on DSI values). The resistance training program will consist of 2 sessions per week for 5 weeks (10 sessions in total). The sessions will be separated by a minimum of 48 hours. The strength training group will consist mostly of exercises with high load, whereas the ballistic training group will perform ballistic exercises with low load or without any additional load. The training principle will be the same for both subgroups, consisting of 3 exercises per training session and a total of 6 exercises per week, with four of the exercises being bilateral, one unilateral, and one quasi-unilateral (Bulgarian split squat and scissor jumps).

Normal training group

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Perform basketball training for at least 5 years
• Plays in professional regional, national or international league

You may not qualify if:

• Any musculoskeletal injury in the past 6 months
• Any neurological issues
• Any chronic non-communicable diseases

Sponsors & Collaborators

• University of Primorska: lead
• Middlesex University: collaborator

Study Sites (1)

University of Primorska, Faculty of Health Sciences

Izola, 6310, Slovenia

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant professor and research fellow

Model Details: Two groups (randomization used for allocation), tested before and after the intervention.

Study Record Dates

• First Submitted: October 12, 2023
• First Posted: October 23, 2023
• Study Start: May 1, 2023
• Primary Completion: October 25, 2023
• Study Completion: May 1, 2024
• Last Updated: December 9, 2024

Record last verified: 2024-12

Locations

SL (1)