Ignite Creation Date:
2024-05-06 @ 3:45 PM
Last Modification Date:
2024-10-26 @ 1:56 PM
Study NCT ID:
NCT04748315
Status:
COMPLETED
Last Update Posted:
2024-01-30
First Post:
2021-01-25
Brief Title:
Recovery Kinetics After Speed-Εndurance Maintenance Training
Sponsor:
University of Thessaly
Organization:
University of Thessaly
Study Overview
Official Title:
Recovery Kinetics After Speed-Εndurance Maintenance Training SEMT in Elite Male Soccer Players
Status:
COMPLETED
Status Verified Date:
2024-01
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 will be to inestigate the recovery kinetics on performance neuromuscular fatigue and muscle microtaruma that will occur after two speed-endurance maintenance training protocols in elite male soccer players Also this study will determine the comparison between two different speed endurance maintenance protocols in neuromuscular fatigue muscle microtrauma indicators and performance factors The training protocols will be differentiated in training work to rest ratio The firts training protocol trial will comprise the work to rest ratio 11 and the other trial will comprise the work to rest ratio 13
Detailed Description:
Speed endurance maintenance training is utilized in order to improve the repeated sprint and high speed running ability of soccer players during a soccer match Also speed endurance maintenance training includes soccer drills which stimulate high speed and powerful actions such as changes of directions accelerations and decelerations However these actions are associated with eccentric component and it is known that eccentric exercises induces muscle damage microtrauma Thus the aim of this study will be to investigate the recovery kinetics on performance neuromuscular fatigue and muscle microtrauma that will occur after two speed-endurance maintenance training protocols in elite male soccer players The speed endurance maintenance training SEMT sessions will be differentiated in training volume and specifically in the work to rest period Specifically a randomized three-trial cross-over repeated measures design will be applied Elite male soccer players aged 18-35 years will participate in the present study Also it is considered necessary that the participants will not suffer from any musculoskeletal injuries that will limit their ability to perform the SEMT sessions Also the participants will not be smokers and will not consume alcohol and ergogenic nutritional supplements before and during the study
In the first phase all participants will sign an informed consent form after they will be informed about all benefits and risks of this study and they will sign a recent historical of musculoskeletal injury or illness form Subsequently fasting blood samples will be collected by venipuncture using a disposable needle 10-gauge in order to estimate muscle damage concentration markers CK blood lactate and inflammation markers WBC After delayed onset muscle soreness DOMS in the knee flexors KF and extensors KE of both limbs body weight BW height and body composition DXA method will be measured in the lab Completing the first phase participants will be instructed by a dietitian how to record a 7 days diet recalls estimating that the energy intake during the trials will be the same The counter movement jump CMJ will be measured 24 hour after second phase on a force platform using two force platforms at 1000 Hz with each foot in parallel on the two platforms providing a separate yet time-synchronized measurement of the data for each leg During the CMJ will be measured the jump height cm the ground reaction force N the peak and mean power Wkg the vertical stiffness Kvert Nmkg and the peak rate of force development RFD Ns while at the same time will be evaluated the change in peak and mean normalized EMG during the eccentric and concentric phases of the counter movement jump for the vastus lateralis VL biceps femoris BF gastrocnemius GAS and gluteus maximus GM muscles Electromyography data will be collected wirelessly at 2000 Hz using a Myon MA-320 EMG system The peak eccentric and concentric isokinetic torque of the knee flexors and extensors in both limbs will be evaluated on an isokinetic dynamometer at 60sec Also the isometric peak torque of the knee extensors will be evaluated at 65o in both limbs Also the fatigue rate during maximal voluntary isometric contraction will be estimated through the percent drop of peak torque between the first and the last three seconds of a 10-secong maximal isometric contraction Also the speed of 10m and 30m will be measured using light cells Chronojump system The repeated sprint ability RSA 5x30m will be measure using light cells Chronojump with 25 seconds rest in-between
The soccer agility drill with a ball will be measured using light cells Chronojump in order to evaluate the soccer technical skills 24 hour after Finally Open-circuit spirometry will be utilized for assessment of maximal oxygen consumption VO2max using an automated online pulmonary gas exchange system via breath-by-breath analysis during a graded exercise testing on a treadmill The ability to recover after repeated intense exercise will be evaluated through the YO-YO Intermittent Recovery test level 2 and YO-YO Intermittent Endurance test level 2 96 hours after the participants are going to perform one of the two speed endurance maintenance training session randomly in the field The SEMT11 session will include 1 set 6 repetitions per set and the work to rest ratio will be 11 The SEMT13 session will iclude 1 set 6 repetitions per set and the work to rest ratio will be 13 During the sessions will be assessed the change in Heart rate using a heart rate monitor and the field activity will be recorded using a global positiong system GPS The blood lactate will be evaluated immediately after each session The DOMS indicator in the knee flexors KF and extensors KE of both limbs will be evaluated immediately after 1h 2h 3h 24h 48h and 72 hours after each session The isometric peak torque of the knee extensors will be evaluated at 65 in limbs post and at 1h 2h and 3h hours after each session Also the fatigue rate during maximal voluntary isometric contraction will be estimated through the percent drop of peak torque between the first and the last three seconds of a 10-secong maximal isometric contraction
Blood samples will be collected at 24h 48h and 72 hours after sessions The counter movement jump CMJ will be measured immediately after the session at 1h 2h 3h at 24h 48h and 72 hours after session on a force platform using two force platforms at 1000 Hz with each foot in parallel on the two platforms providing a separate yet time-synchronized measurement of the data for each leg During the CMJ will be measured the jump height cm the ground reaction force N the peak and mean power Wkg the vertical stiffness Kvert Nmkg and the peak rate of force development RFD Ns while at the same time will be evaluated the change in peak and mean normalized EMG during the eccentric and concentric phases of the counter movement jump for the vastus lateralis VL biceps femoris BF gastrocnemius GAS and gluteus maximus GM muscles Electromyography data will be collected wirelessly at 2000 Hz using a Myon MA-320 EMG system Also the speed of 10m and 30m will be measured using light cells Chronojump system immediately after at 24h 48h and 72 hours after session Finally the RSA test will be measured at 24h 48h and 72 hours after sessions Α 2 - week washout period will be adapted among trials After the participants will perform the process until they complete the trials
In the first phase all participants will sign an informed consent form after they will be informed about all benefits and risks of this study and they will sign a recent historical of musculoskeletal injury or illness form Subsequently fasting blood samples will be collected by venipuncture using a disposable needle 10-gauge in order to estimate muscle damage concentration markers CK blood lactate and inflammation markers WBC After delayed onset muscle soreness DOMS in the knee flexors KF and extensors KE of both limbs body weight BW height and body composition DXA method will be measured in the lab Completing the first phase participants will be instructed by a dietitian how to record a 7 days diet recalls estimating that the energy intake during the trials will be the same The counter movement jump CMJ will be measured 24 hour after second phase on a force platform using two force platforms at 1000 Hz with each foot in parallel on the two platforms providing a separate yet time-synchronized measurement of the data for each leg During the CMJ will be measured the jump height cm the ground reaction force N the peak and mean power Wkg the vertical stiffness Kvert Nmkg and the peak rate of force development RFD Ns while at the same time will be evaluated the change in peak and mean normalized EMG during the eccentric and concentric phases of the counter movement jump for the vastus lateralis VL biceps femoris BF gastrocnemius GAS and gluteus maximus GM muscles Electromyography data will be collected wirelessly at 2000 Hz using a Myon MA-320 EMG system The peak eccentric and concentric isokinetic torque of the knee flexors and extensors in both limbs will be evaluated on an isokinetic dynamometer at 60sec Also the isometric peak torque of the knee extensors will be evaluated at 65o in both limbs Also the fatigue rate during maximal voluntary isometric contraction will be estimated through the percent drop of peak torque between the first and the last three seconds of a 10-secong maximal isometric contraction Also the speed of 10m and 30m will be measured using light cells Chronojump system The repeated sprint ability RSA 5x30m will be measure using light cells Chronojump with 25 seconds rest in-between
The soccer agility drill with a ball will be measured using light cells Chronojump in order to evaluate the soccer technical skills 24 hour after Finally Open-circuit spirometry will be utilized for assessment of maximal oxygen consumption VO2max using an automated online pulmonary gas exchange system via breath-by-breath analysis during a graded exercise testing on a treadmill The ability to recover after repeated intense exercise will be evaluated through the YO-YO Intermittent Recovery test level 2 and YO-YO Intermittent Endurance test level 2 96 hours after the participants are going to perform one of the two speed endurance maintenance training session randomly in the field The SEMT11 session will include 1 set 6 repetitions per set and the work to rest ratio will be 11 The SEMT13 session will iclude 1 set 6 repetitions per set and the work to rest ratio will be 13 During the sessions will be assessed the change in Heart rate using a heart rate monitor and the field activity will be recorded using a global positiong system GPS The blood lactate will be evaluated immediately after each session The DOMS indicator in the knee flexors KF and extensors KE of both limbs will be evaluated immediately after 1h 2h 3h 24h 48h and 72 hours after each session The isometric peak torque of the knee extensors will be evaluated at 65 in limbs post and at 1h 2h and 3h hours after each session Also the fatigue rate during maximal voluntary isometric contraction will be estimated through the percent drop of peak torque between the first and the last three seconds of a 10-secong maximal isometric contraction
Blood samples will be collected at 24h 48h and 72 hours after sessions The counter movement jump CMJ will be measured immediately after the session at 1h 2h 3h at 24h 48h and 72 hours after session on a force platform using two force platforms at 1000 Hz with each foot in parallel on the two platforms providing a separate yet time-synchronized measurement of the data for each leg During the CMJ will be measured the jump height cm the ground reaction force N the peak and mean power Wkg the vertical stiffness Kvert Nmkg and the peak rate of force development RFD Ns while at the same time will be evaluated the change in peak and mean normalized EMG during the eccentric and concentric phases of the counter movement jump for the vastus lateralis VL biceps femoris BF gastrocnemius GAS and gluteus maximus GM muscles Electromyography data will be collected wirelessly at 2000 Hz using a Myon MA-320 EMG system Also the speed of 10m and 30m will be measured using light cells Chronojump system immediately after at 24h 48h and 72 hours after session Finally the RSA test will be measured at 24h 48h and 72 hours after sessions Α 2 - week washout period will be adapted among trials After the participants will perform the process until they complete the trials
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