Ignite Creation Date:
2024-07-17 @ 11:58 AM
Last Modification Date:
2024-10-26 @ 3:32 PM
Study NCT ID:
NCT06468449
Status:
RECRUITING
Last Update Posted:
2024-06-21
First Post:
2024-06-03
Brief Title:
Strength Training on Muscle Power Output and Neuromuscular Adaptation Among China University Long Jump Athletes
Sponsor:
Rong Wenchao
Organization:
Universiti Putra Malaysia
Study Overview
Official Title:
Effects of Optimal Load Strength Training on Muscle Power Output and Neuromuscular Adaptation During Takeoff Among China University Long Jump Athletes
Status:
RECRUITING
Status Verified Date:
2024-07
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purpose of this study is to investigate the effects of optimal load strength training on the lower limb neuromuscular adaptation of athletes An anatomical analysis of the vertical jump reveals three phases the propulsion phase the flight phase and the landing phase
This study is an 8-week randomized controlled trial After selecting the participants basic information such as height weight age and years of training experience is collected Subsequently a maximal output power test for lower limb squatting is conducted Participants are then randomly assigned to the speed group power group and strength group The optimal power load for the power group is determined based on the participant maximal output power Training plans are developed for the traditional group power group and strength group Each training session is organized and supervised by a designated person Surface electromyography three-dimensional motion capture systems and force platforms are used to collect electromyographic and kinetic data of participants during pre-test and post-test vertical jump actions Electromyography evoked potential instruments and myotonometer are used to collect nerve signals of the tibial nerve posterior calf and muscle fiber dimension data of the rectus femoris before and after the experiment Additionally static full-range-of-motion vertical jump kinematics and kinetics data are collected before and after the experiment To ensure the quality and validity of the intervention the following controls are implemented during the experiment first communication with the participants to inform them of the purpose of the study and ensure adherence to the correct movement standards during testing second having a designated person responsible for resistance training during the experiment third using the same equipment and team for testing to maximize the controllability of the experiment process fourth providing verbal encouragement to participants during testing to maximize effort and minimize experimental errors The aim is to determine the effects of optimal load strength training on improving the lower limb output power during the propulsion phase of the take-off stage in long jump athletes and the underlying neuromuscular adaptation mechanisms
This study is an 8-week randomized controlled trial After selecting the participants basic information such as height weight age and years of training experience is collected Subsequently a maximal output power test for lower limb squatting is conducted Participants are then randomly assigned to the speed group power group and strength group The optimal power load for the power group is determined based on the participant maximal output power Training plans are developed for the traditional group power group and strength group Each training session is organized and supervised by a designated person Surface electromyography three-dimensional motion capture systems and force platforms are used to collect electromyographic and kinetic data of participants during pre-test and post-test vertical jump actions Electromyography evoked potential instruments and myotonometer are used to collect nerve signals of the tibial nerve posterior calf and muscle fiber dimension data of the rectus femoris before and after the experiment Additionally static full-range-of-motion vertical jump kinematics and kinetics data are collected before and after the experiment To ensure the quality and validity of the intervention the following controls are implemented during the experiment first communication with the participants to inform them of the purpose of the study and ensure adherence to the correct movement standards during testing second having a designated person responsible for resistance training during the experiment third using the same equipment and team for testing to maximize the controllability of the experiment process fourth providing verbal encouragement to participants during testing to maximize effort and minimize experimental errors The aim is to determine the effects of optimal load strength training on improving the lower limb output power during the propulsion phase of the take-off stage in long jump athletes and the underlying neuromuscular adaptation mechanisms
Detailed Description:
In this study the experimental group conducted 8 weeks of maximum output power strength training and the control group also conducted 8 weeks of explosive power training strength combined with speed The subjects trained twice a week and each training was not based on time but on the number of times multiplied by the number of groups The training load in the 8-week strength training of the experimental group was the load weight corresponding to the maximum output power of the subjects and the training load in the control group was between 70 and 85 of the maximum strength In the control group the entire cycle was divided into three stages 1-2 weeks Adaptation period 3-5 weeks Enhancement period 6-8 weeks Stabilization period the experimental group had no period division The equipment for strength training in both the experimental and control groups was the Smith rack The experimental group used weighted half squat jumps and the control group used weighted half squat jumps plus knee hug jumps
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None