The Gender-Specific Effect of Different Instruction Training

NCT06746454 | Completed

• 1 other identifier: OS-GenderF
• Study Type: interventional
• Target: 48
• Locations: 1 country
• Sites: 1

Brief Summary

Feedback is incorporated into training programs to prevent injuries. The superiority of several feedback techniques is still debated and there is a need for gender specific studies. The main aim of the study was to investigate the gender-specific effectiveness of two different feedback techniques (combined verbal training with internal and external focus feedback and video training with instructional feedback) on the landing technique after vertical jump, frontal plane projection angle, and joint position sense in male and female volleyball players with asymptomatic knee valgus. In addition, the continuity of potential positive results in a retention test performed one week after the test session will be evaluated.

Conditions

Sports Injury

Keywords

motor learning; proprioception; volleyball; knee valgus; drop vertical jump test

Outcome Measures

Primary Outcomes (1)

• Landing Error Scoring System (LESS) Measurement

  Two standard video cameras capture the frontal plane and sagittal plane view of each subject as they perform the test procedures (jumping from 30 cm height box). The participant's LESS score represents excellent (LESS score \<4), good (LESS score \>4 to 5), fair (LESS score \>5 to 6) and poor (LESS score \>6) jumping technique.

  baseline, immediately after the intervention, one week after the baseline

Secondary Outcomes (2)

• Frontal Plan Projection Angle (FPPA) Measurement

  baseline, immediately after the intervention, one week after the baseline

• Knee Joint Position Sense (KJPS) Measurement

  baseline, immediately after the intervention, one week after the baseline

Study Arms (2)

Video Instructed Training Group

EXPERIMENTAL

Video Instructed Training Group Before the study is conducted, the expert video that will be used for the VI group instructions will be created. The expert video was created with an athlete with a LESS score of less than 4 and an FPPA of less than 10 who performs a DVJ task following the instructions. The video recording was used only for the video group instructions.

Other: Video Instructed Training Group

Verbal Combined Focus Instructed Training Group

EXPERIMENTAL

Participants will be given combined verbal instruction such as "Focus on how hard you push yourself off the ground after the jump and how quickly you straighten your knees during this push", in which internal and external focus directions were given simultaneously.

Other: Verbal Combined Focus Instructed Training Group

Interventions

Video Instructed Training Group OTHER

"Pre-test" measurements were taken to determine the baseline values of the athletes before the training packages specific to their group. The pre-test measurements included a landing error scoring system, knee position error sense, and frontal plane projection angle. After the pre-test measurements, 2 training packages with special instructions were performed for the video instructed training (VIT) group. The special instruction for the VIT group included a previously prepared video of a successful vertical jump landing task. This video was shown to the VIT group. Immediately after the training packages, post-test measurements were taken. The post-test measurements included the same tests as the pre-test measurements. A follow-up test was taken 7 days after the measurements. The follow-up test included the same measurements as in the pre-test and post-test phases.

Video Instructed Training Group

Verbal Combined Focus Instructed Training Group OTHER

"Pre-test" measurements were taken to determine the baseline values of the athletes before the training packages specific to their group. The pre-test measurements included landing error scoring system, knee position error sense, and frontal plane projection angle. After the pretest measurements, 2 training packages with specific instructions were performed for the CSE group. The special instruction given to the CSE group consisted of the following sentence, which included the both internal and external focus of attention; "focus on how hard you push yourself off the ground and how fast you straighten your knees during this push-off". Immediately after the training packages, post-test measurements were taken. The post-test measurements included the same tests as the pre-test measurements. A follow-up test was taken 7 days after the measurements. The follow-up test included the same measurements as in the pre-test and post-test phases.

Verbal Combined Focus Instructed Training Group

Eligibility Criteria

• Age: 18 Years - 24 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Being between the ages of 18-24
• Becoming a minor volleyball player
• Volunteers must not have suffered any trunk or lower extremity injuries in the last 6 months before participation in the study.
• Having a frontal plane projection angle greater than 10° during the single-leg squat test

You may not qualify if:

• Having experienced a trunk or lower extremity injury in the last 6 months before the date of study
• Having a history of fracture or dislocation in the lower extremity
• Having suffered from back pain in the past years
• Having a musculoskeletal system abnormality
• Being unable to perform functional tasks (visual, auditory, vestibular or neurological impairment)
• Being pregnant
• Having malignancy and metabolic diseases

Sponsors & Collaborators

• Bahçeşehir University: lead

Study Sites (1)

Smyrna Sports Club

Izmir, 35220, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Athletic Injuries

Condition Hierarchy (Ancestors)

Wounds and Injuries

Study Officials

• Oktay Şenozan, PT

  Bahcesehir University, Graduate Education Institute, Physiotherapy and Rehabilitation, Master of Science Program

  PRINCIPAL INVESTIGATOR

• Pelin Pişirici, PT, PhD

  Bahcesehir University, Faculty of Health Sciences

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: Randomization was gender specific. Female participants were randomized to the verbal training group with combined attentional focus instruction (VFIT) and the visual training group with video instruction (VGE) by asking them to draw a paper from a black bag filled with papers with the names of both groups. For male participants, randomization was performed with a different black bag with the same characteristics.
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor, PT, PhD

Model Details: Randomized, single-blind, prospective study

Study Record Dates

• First Submitted: December 18, 2024
• First Posted: December 24, 2024
• Study Start: November 5, 2024
• Primary Completion: December 19, 2024
• Study Completion: December 20, 2024
• Last Updated: January 3, 2025

Record last verified: 2025-01

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)