The Effect of Different Instruction Trainings in Semi-Professional Female Athletes

NCT06424886 | Completed

• 1 other identifier: BT-FocusT
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

Feedback is implanted into workouts to prevent lower extremity injuries. There are different studies where external focus and internal focus feedback were found to be superior. The main purpose of this study is to investigate the effects of training on vertical jump landing technique by comparing a verbal training group that receives instructions with an external focus of attention and an internal focus of attention combined, a visual training group with video instructions, and a control group in female athletes with knee valgus. It is also to examine whether possible beneficial results are still present in the retention test performed one week after the test session. The secondary aim of our study is to examine the effect of the training provided on knee joint position sense.

Conditions

Injury;Sports

Keywords

motor learning; knee valgus; landing biomechanics; proprioception

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 (3)

Video Instructed Training Group

EXPERIMENTAL

Before the study is conducted, the expert video that will be used for the VI group instructions will be created. The expert video will be created with an athlete with a LESS score of less than 4 and an FPPA of less than 100 who performs a DVJ task in accordance with the instructions. A video recording will be taken of the person designated as an expert performing the DVJ task. The video recording will be used only for the VI group instructions.

Other: Landing error scoring system (LESS)

Verbal Combined Focus Instructed Training Group

EXPERIMENTAL

It was emphasized that the participants should jump from the 30 cm high box and immediately after landing, jump as high and forward as possible and maintain the final landing stance for 5 seconds. Participants were asked to perform 5 drop vertical jumps and the jumps performed were evaluated. After pretest evaluations were recorded, verbal training group participants performed two training blocks, receiving instructions specific to their group. Participants were given a 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. After receiving the instructions, the participants performed 2 drop vertical jumps, 10 times each.

Other: Landing error scoring system (LESS)

Control Group

EXPERIMENTAL

Participants will be explained how to do the DVJ task in the same way as other groups. Then, after the participants' measurements will be taken, they will start the training blocks without any instructions. Participants will not receive any feedback during training blocks.

Other: Landing error scoring system (LESS)

Interventions

Landing error scoring system (LESS) OTHER

Each group will perform two training blocks of 10 drop vertical jumping (DVJ) tasks. Knee joint position sense (KJPS), frontal plane projection angle (FPPA), and Landing Error Scoring System (LESS) assessments will be performed before and after the training blocks, and follow-up assessments will be performed 1 week later. The dominant limb of the participants (the side limb they use when kicking the ball) will be taken into account during the measurement.

Also known as: drop vertical jump landing task, frontal plane projection angle (FPPA), knee joint position sense (KJPS)

Control Group; Verbal Combined Focus Instructed Training Group; Video Instructed Training Group

Eligibility Criteria

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

You may qualify if:

• Being female
• Being between the ages of 18-24
• Body mass index being between 18.5 kg/m2 and 25 kg/m2
• Becoming a minor league basketball or 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 100 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)

Istanbul Panterler Sports Club

Kağıthane, Istanbul, 34406, Turkey (Türkiye)

Location

Related Publications (1)

• Tamguc B, Pisirici P. The Effect of Verbal Combined Focus of Attention and Video Instruction Training on Knee Valgus and Landing Technique in Semiprofessional Female Athletes. Orthop J Sports Med. 2025 Apr 4;13(4):23259671251326454. doi: 10.1177/23259671251326454. eCollection 2025 Apr.

  PMID: 40291630 DERIVED

MeSH Terms

Conditions

Athletic Injuries

Condition Hierarchy (Ancestors)

Wounds and Injuries

Study Officials

• Pelin Pişirici, PT, PhD

  Bahcesehir University, Faculty of Health Sciences, Department of Physiotherapy

  STUDY DIRECTOR

• Büşra Tamgüç, PT

  Bahcesehir University, Graduate Education Institute

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: Randomization will be done by sealed envelope method.
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor, PT, PhD

Model Details: a randomized, controlled, single-blind, prospective study

Study Record Dates

• First Submitted: May 17, 2024
• First Posted: May 22, 2024
• Study Start: January 15, 2024
• Primary Completion: June 6, 2024
• Study Completion: June 12, 2024
• Last Updated: June 13, 2024

Record last verified: 2024-06

Locations

TU (1)