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

NCT ID: NCT06458166

Last Updated: 2024-06-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

40 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-07-01

Study Completion Date

2024-09-30

Brief Summary

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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.

Detailed Description

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Conditions

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Fatigue Physical Exercise

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Interventions

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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.

Intervention Type OTHER

Eligibility Criteria

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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
Minimum Eligible Age

16 Years

Maximum Eligible Age

21 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of Maia

OTHER

Sponsor Role lead

Responsible Party

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Filipe Silvano Pinto Maia

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Maia

Maia, Porto District, Portugal

Site Status RECRUITING

Countries

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Portugal

Central Contacts

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Filipe Maia

Role: CONTACT

22 986 6000

Facility Contacts

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Filipe Maia

Role: primary

914957798

Other Identifiers

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ST_S_

Identifier Type: -

Identifier Source: org_study_id

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