Recovery Kinetics After Speed-Εndurance Maintenance Training

NCT04748315 | Completed

• 1 other identifier: Recovery-Maintenance-UTH
• Study Type: interventional
• Target: 10
• Locations: 1 country
• Sites: 1

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 (1:1) and the other trial will comprise the work to rest ratio 1:3.

Conditions

Muscle Damage

Keywords

muscle damage; Eccentric exercise; Speed maintenance training; Soccer; Recovery

Outcome Measures

Primary Outcomes (19)

• Change in white blood cell count

  White blood cell count will be measured using an automatic blood analyzer

  At baseline, at 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in Creatine kinase in blood

  Creatine kinase will be measured in plasma

  At baseline, at 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in countermovement jump height

  Countermovement jump height will be measured using two force platforms at 1000Hz, with each foot in parallel on the two platforms providing a seperate yet time-synchronized measurement of the jump height for each leg

  At baseline, post, 1, 2,3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in ground reaction force (GRF) during countermovement jump test

  The ground reaction force will be measured using two force platforms at 1000Hz, with each foot in parallel on the two platforms providing a seperate yet time-synchronized measurement of the jump height for each leg

  At baseline, at post, at 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in peak power during countermovement jump test

  The peak power will be measured using two force platforms at 1000Hz, with each foot in parallel on the two platforms providing a seperate yet time-synchronized measurement of the jump height for each leg

  At baseline, post 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in mean power during countermovement jump test

  The mean power will be measured using two force platforms at 1000Hz, with each foot in parallel on the two platforms providing a seperate yet time-synchronized measurement of the jump height for each leg

  At baseline, post, 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in vertical stifness during countermovement jump test

  The vertical stifness will be measured using two force platforms at 1000Hz, with each foot in parallel on the two platforms providing a seperate yet time-synchronized measurement of the jump height for each leg

  At baseline, post, 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in peak rate of force development during countermovement jump test

  The peak rate of force development will be measured using two force platforms at 1000Hz, with each foot in parallel on the two platforms providing a seperate yet time-synchronized measurement of the jump height for each leg

  At baseline, post, 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in peak normalized EMG during the eccentric and concentric phases of the countermovement jmp test

  Electromyography data will be collected wirelessly at 2000Hz using a Myon MA-320 EMG system (Myon AG, Schwarzenberg, Switzerland) for the vastus lateralis (VL), biceps femoris (BF), gastrocnemius (GAS), and gluteus maximus (GM) muscles

  At baseline, post, 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in mean normalized EMG during the eccentric and concentric phases of the countermovement jump test

  Electromyography data will be collected wirelessly at 2000Hz using a Myon MA-320 EMG system (Myon AG, Schwarzenberg, Switzerland) for the vastus lateralis (VL), biceps femoris (BF), gastrocnemius (GAS), and gluteus maximus (GM) muscles

  At baseline, post, 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in delayed onset of muscle soreness

  Muscle soreness will be assessed during palpation of the muscle belly and the distal region

  At baseline, post, at 1, 2, 3, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in repeated sprint ability (RSA)

  5 x 30 m sprints will be performed with 25 seconds rest in-between

  At baseline, at 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in sprint time of 10m

  Sprint time will be assessed over a 10m distance using light cells.

  At baseline, post, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in sprint time of 30m

  Sprint time will be assessed over a 30m distance using light cells.

  At baseline, post, 24, 48 and 72 hours post speed endurance maintenance protocols.

• Change in field activity during the speed-endurance mainetnance protocols

  Field activity will be continuously recorded during both speed endurance maintenance protocols using global positioning system (GPS) technology

  For 20 minutes during the speed endurance maintenance training day

• Change in heart rate during the speed-endurance mainetnance protocols

  Heart rate will be continuously recorded during both speed endurance maintenance protocols using heart rate monitors

  For 20 minutes during the speed endurance maintenance training day

• Change in isometric peak torque

  The isometric peak torque will be assessed on an isokinetic dyanmometer

  At baseline, post, 1, 2, 3 and 24, 48 72 hours post speed endurance maintenance protocols.

• Change in fatigue index of maximal voluntary isometric contraction (MVIC) during 10 seconds

  Fatigue rate during MVIC will be estimated through the percent drop of peak torque between the first and the last three seconds of a 10-second maximal isometric contaction

  At baseline, post, 1, 2, 3 and 24, 48 72 hours post speed endurance maintenance protocols.

• Change in blood lactate

  The blood lactate will be measured using a lactate plus system

  At baseline and immediately post speed endurance maintenance protocols.

Secondary Outcomes (9)

• Body weight

  At baseline

• Body height

  At baseline

• Maximal oxygen consumption (VO2max)

  At baseline

• Body fat

  At baseline

• Lean body mass

  At baseline

Study Arms (3)

SEMT(1:1)

EXPERIMENTAL

Participants in this arm will perform an a speed endurance maintenance training consisted of work to rest ratio 1:1.

Other: SEMT(1:1)

SEMPT(1:3)

EXPERIMENTAL

Participants in this arm will perform an a speed endurance maintenance training consisted of work to rest ratio 1:3.

Other: SEMT (1:3)

Control

NO INTERVENTION

Participants in this arm will receive no intervention

Interventions

SEMT(1:1) OTHER

Soccer trainning protocolo will be performed on an work to rest ratio 1:1 and the trainning volume will consist of 1 set and 6 repetitions per set

SEMT(1:1)

SEMT (1:3) OTHER

Soccer trainning protocolo will be performed on an work to rest ratio 1:3 and the trainning volume will consist of 1 set and 6 repetitions per set

SEMPT(1:3)

Eligibility Criteria

• Age: 18 Years - 35 Years
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Aged between 18 and 35 years
• Active soccer players who participate on a competitive soccer level at least for 4 years(≥5 sessions per week ≥1 match per week)
• Free of chronic diseases
• Free of musculoskeletal injury
• Participants should be non-smokers

You may not qualify if:

• Musculoskeletal injury
• Chronic disease
• Use of alcohol, caffeine and any type of ergogenic supplements or medication before (≥ 6 months) and throughout the study.

Sponsors & Collaborators

• University of Thessaly: lead

Study Sites (1)

University o Thessaly, School of Physical Education and Sports Science

Trikala, 42100, Greece

Location

Study Officials

• Ioannis Fatouros, Prof

  University of Thessaly

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: January 25, 2021
• First Posted: February 10, 2021
• Study Start: April 1, 2021
• Primary Completion: April 20, 2023
• Study Completion: August 31, 2023
• Last Updated: January 30, 2024

Record last verified: 2024-01

Locations

GR (1)