Associations Between Low Frequency Fatigue, Jump Height and Perceptual Measures of Muscle Soreness, Fatigue and Recovery

Fatigue Clinical Trial

Official title:

Associations Between Low Frequency Fatigue, Jump Height and Perceptual Measures of Muscle Soreness, Fatigue and Recovery in Youth Elite Soccer Players

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT06458166
• Other study ID #: ST_S_
• Status: Recruiting
• Start date: July 1, 2024
• Est. completion date: September 30, 2024

Study information

• Verified date: June 2024
• Source: University of Maia
• Contact: Filipe Maia
• Phone: 22 986 6000
• Email: FMAIA.dcd[@]umaia.pt
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Over the recent years, the increased competitive demands in elite competitive athletes has sparked a heightened interest in monitoring fatigue. Given the nature of the soccer game, athletes may experience low-frequency fatigue. Until recently, this assessment was restricted to in-lab. However, the emergence of new instruments aiming to allow low-frequency assessment to be carried out on a daily basis, in the context of professional teams. This study aimed to analyze the recovery of low-frequency fatigue, jump height and perceptual responses following competition and investigate possible associations between the objective and subjective parameters.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 40
• Est. completion date: September 30, 2024
• Est. primary completion date: August 21, 2024
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 16 Years to 21 Years

Eligibility

Inclusion Criteria:

• Elite level youth soccer players, competing in the highest portuguese division

Exclusion Criteria:

• Older adults
• none elite soccer player
• Play less than 70 minutes of match

Related Conditions & MeSH terms

• Fatigue
• Myalgia
• Physical Exercise

Intervention

Other:
• Assessment of low frequency fatigue using low frequency eletrical stimulation
Pre-programmed muscle electrical stimuli will be applied via Myocene® software using 3 electrodes: 1 cathode (5 x 10 cm) placed transversely over the proximal quadriceps femoris, and 2 anodes (5 x 5 cm) over the distal vastus medialis and vastus lateralis. Sixteen sets of stimuli will be administered with 5 seconds between sets. Each set consists of a single pulse, a train of 5 stimuli at 20 Hz, and a train of 18 stimuli at 120 Hz, with 1-second intervals between. The stimulation intensity starts at 25 mA and increases by 1 mA per set, reaching 40 mA in the final set. The Myocene® software calculates the ratio of low- to high-frequency evoked forces within each set. The outcome (Powerdex) is the median value of these 16 ratios for each leg. This evaluation will be conducted on both legs, taking 2 minutes per leg.

Locations

Country	Name	City	State
Portugal	University of Maia	Maia	Porto

Sponsors (1)

Lead Sponsor	Collaborator
University of Maia

Country where clinical trial is conducted

Portugal, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Differences in Low frequency fatigue measured using Myocene (eletrical stimulus and force measurement)	Assessment using myocene. Muscles are stimulated with low-frequency electrical pulses. The response of the muscle (force or torque) output, is recorded. A decrease in force output compared to baseline levels indicates fatigue.	2 hours before the match; 30 minutes following the match, 24 hours following the match; 48 hours following the match