Clinical trial NCT04859153: Relevant Factors on Sprint Performance in Adolescent Sprinters
Official title: Relevant Factors on Sprint Performance in Adolescent Sprinters: Influences of Central Visuomotor and Audiomotor Mechanisms, Muscle Mechanical Properties and Skill-related Physical Fitness
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Sprint Performance
Physical Fitness
Muscle Architecture
Reaction Time
Lead sponsor: China Medical University Hospital
Sponsor class: OTHER
First posted: 2021-04-26
Enrollment: 30
Sex: ALL
Minimum age (years): 13
Maximum age (years): 18
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: the healthy adolescent athletes of the athletics sprint and other kinds of sports

Brief summary: Purpose: To explore the sports performance of the adolescent sprinters, including analyzing the correlations between the results and central nerve sensory, and also between motor control and various muscle mechanical characteristic and sport-related fitness factor.

Detailed description: The sprint performance was determined by various relevant factors, and they were mainly divided into central system factor and peripheral system factor. An effective sprint start requires a quick reaction to an auditory stimulus followed by a determined sequence of activation of particular muscles responsible for maximum movement speed. Both of the skill-related physical fitness, including muscle strength, muscle endurance, muscle power, speed, agility, and balance, and muscle physical characteristic, including muscle tone and muscle architecture, are related to the sprint performance. The 100m race could divided into three different phases, start acceleration, maximum speed, and deceleration. According to Collet, 1999, the determinants of the temporal structure of the sprint start are RT, movement speed and movement frequency, which involves in perfecting sprinters' physical performance. And also, according to Pilianidis et al., 2012; Tonnessen et al., 2013, the start reaction time significantly affects the reduction of running time in 100 m races. In the recent studies, there are researches only showing that the auditory stimulus trainings significantly affected the final results for swimming athletes, and that the visual stimulus trainings significantly affected the final scores for badminton athletes.This study will mainly recruit the healthy adolescent athletes of the athletics sprint and other kinds of sports in the age range 13-18 years, and will evaluate the athletes of anthropometric measurements and physical fitness, 100m sprint performance, muscle characteristic, jump ability, agility, and nerve potential measurements.The outcome of this study will be able to be one of the comprehensive trials for coaches to take into consideration when choosing their own athletes. And also, the athletes may choose their own specialties that fit their own physical conditions. Moreover, the adolescent athletes will be trained more precisely and effectively. These will positively lead to reaching their personal best results and decreasing the occurrences of the sport injuries due to unsuitable events and trainings.

Eligibility criteria: Inclusion Criteria:

* the healthy adolescent athletes of the athletics sprint and other kinds of sports

Exclusion Criteria:

* cardiovascular diseases
* lower extremities surgery histories
* musculoskeletal sports injuries that would affect the sports testing
* auditory or visual disabilities
* brain injury histories.

Primary outcomes:
measure: Distance of vertical jump.horizontal jump and hexagonal barbell jump squat
timeFrame: day 1
measure: Power of vertical jump.horizontal jump and hexagonal barbell jump squat
timeFrame: day 1
measure: T-test
timeFrame: day 1
measure: Hexagonal Obstacle Test
timeFrame: day 1
measure: Thickness of muscle
timeFrame: day 1
measure: Pennation angle of muscle
timeFrame: day 1
measure: Fascicle length of muscle
timeFrame: day 1
measure: Muscle tone
timeFrame: day 1
measure: Muscle stiffness
timeFrame: day 1
measure: Muscle elasticity
timeFrame: day 1
measure: Visuomotor reaction time
timeFrame: day 1
measure: Audiomotor reaction time
timeFrame: day 1
measure: 100 meter sprint performance
timeFrame: day 1
Secondary outcomes:
Other outcomes:
Locations:
city: Taichung
country: Taiwan
facility: Yueh - Ling Hsieh
Study officials:
affiliation: Yueh-Ling Hsieh's graduate student
name: Jia -Min Wu
role: PRINCIPAL_INVESTIGATOR
References: