Clinical trial NCT06424886: The Effect of Different Instruction Trainings in Semi-Professional Female Athletes
Official title: The Effect of Verbal Combined Focus of Attention and Video Instruction Training on Landing Technique and Proprioception in Semi-Professional Female Athletes
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Injury;Sports
Keywords: motor learning
knee valgus
landing biomechanics
proprioception
Lead sponsor: Bahçeşehir University
Sponsor class: OTHER
First posted: 2024-05-22
Enrollment: 30
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 24
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: a randomized, controlled, single-blind, prospective study
Primary purpose: PREVENTION

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.

Detailed description: Approximately 70% of lower extremity injuries occur during non-contact, single-leg landings, and jumping to the ground is a common injury mechanism in both genders. Additionally, female athletes have higher injury rates compared to men, potentially due to anatomical differences of the lower kinematic chain. Events in which athletes experience non-contact ACL injuries generally show many common biomechanical features such as increased ground reaction forces during single-leg landing, decreased joint flexion in the sagittal plane of the ankle, knee, hip and trunk, as well as increased knee internal rotation angles. Another critical ACL injury risk factor is performing a secondary task during sharp deceleration movements. Current rehabilitation programs focus on neuromuscular training programs to prevent adverse movement patterns and increase proper movement control. However, there is still a need to increase the effectiveness of these neuromuscular training programs to have a more significant impact on ACL injury rates. Therefore, the use of motor learning strategies and neuromuscular training programs with adequate and correct techniques in the rehabilitation of athletes should still be investigated.

There are various approaches to motor learning. One of the best-known approaches is the cognitive approach, where the athlete reaches the automation stage by receiving feedback and repeating the model technique as often as possible. The common denominator of motor learning strategies is the use of explicit instructions and feedback regarding desired landing positions. Instructions for the implementation of movements in rehabilitation programs aim to improve performance and motor learning. These instructions may address the action outcome or the course of action. There are many studies showing that feedback training changes jump landing biomechanics. In line with the results of these studies, using feedback techniques, especially to reduce the vertical ground reaction force and increase the knee flexion angle during landing from a jump, can reduce the stress and risk of injury in the lower extremity.

Motor skills can be learned with an internal focus of attention or with an external focus of attention. Although the difference in these instructions may seem insignificant, externally focused education; has been shown to result in better performance, retention, transfer, and greater movement automaticity. 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.

Eligibility criteria: Inclusion Criteria:

* 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

Exclusion Criteria:

* • 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

Primary outcomes:
measure: Landing Error Scoring System (LESS) Measurement
timeFrame: baseline, immediately after the intervention, one week after the baseline
Secondary outcomes:
measure: Frontal Plan Projection Angle (FPPA) Measurement
timeFrame: baseline, immediately after the intervention, one week after the baseline
measure: Knee Joint Position Sense (KJPS) Measurement
timeFrame: baseline, immediately after the intervention, one week after the baseline
Other outcomes:
Locations:
city: Kağıthane
country: Turkey
facility: Istanbul Panterler Sports Club
state: Istanbul
Study officials:
affiliation: Bahcesehir University, Faculty of Health Sciences, Department of Physiotherapy
name: Pelin Pişirici, PT, PhD
role: STUDY_DIRECTOR
affiliation: Bahcesehir University, Graduate Education Institute
name: Büşra Tamgüç, PT
role: PRINCIPAL_INVESTIGATOR
References: