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Completed

NCT Number: NCT04531891

Utility and Validity of a High-intensity, Intermittent Exercise Protocol

The purpose of this study is to identify an exercise-induced fatigue protocol to mimic central and peripheral acute fatigue effects associated with participation in vigorous dynamic sports activities and to understand the expected central (cardiovascular) and peripheral (muscular) impact of this protocol.

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Key information

Conditions

Fatigue Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–45 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Vakgroep Revalidatiewetenschappen

Ghent, Oost-Vlaanderen, 9000, Belgium

About this study

Fatigue-related parameters (BORG, heart rate, blood lactate level, concentric/eccentric force of the quadriceps muscle) will be measured before and after different short-term high-intensity, intermittent exercise protocols.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Men
  • ≥ 18 years
  • Volley- and basketball, non-elite
  • ≥ 3 times per week sports participation
  • No acute or overuse low back/lower extremity injuries in the past 6 months

Exclusion criteria

  • Women
  • <18 years
  • >45 years
  • other sports than volley- and basketball
  • elite players
  • <3 times per week sports participation
  • acute or overuse low back/lower extremity injuries in the past 6 months

Treatment and study plan

Fatigue protocol

Other

During the fatigue protocol, participants will sprint forward 5 m, cut at a 90° angle, sprint forward another 5 m, and backpedal 5 m. This activity will be repeated 4 times before participants will complete a series of hurdle activities. First, they will perform 2-legged jumps over 5 hurdles that are 30 cm high, turn, and repeat the jumps. Second, they will perform side-stepping exercises over the 5 hurdles. Third, they will complete four 5-m lateral shuffles.

Primary outcomes

  1. Heart rate

    Time frame: This parameters will be continuously monitored 10 minutes before the start of the fatigue protocol until 30 minutes after completion of the protocol

    Heart rate, expressed in beats per minute

  2. Isokinetic dynamometry

    Time frame: This parameter will be monitored 10 minutes before the start of the fatigue protocol

    Isokinetic dynamometry of the quadriceps muscle

  3. Isokinetic dynamometry

    Time frame: This parameter will be monitored immediately after completion of the protocol

    Isokinetic dynamometry of the quadriceps muscle

  4. Isokinetic dynamometry

    Time frame: This parameter will be monitored 15 minutes after completion of the protocol

    Isokinetic dynamometry of the quadriceps muscle

  5. Isokinetic dynamometry

    Time frame: This parameter will be monitored 30 minutes after completion of the protocol

    Isokinetic dynamometry of the quadriceps muscle

  6. Blood lactate level

    Time frame: This parameters will be monitored 10 minutes before the start of the fatigue protocol

    Blood lactate level, expressed in millimol per liter

  7. Blood lactate level

    Time frame: This parameters will be monitored 10 minutes after completion of the protocol

    Blood lactate level, expressed in millimol per liter

  8. BORG

    Time frame: This parameters will be continuously monitored 10 minutes before the start of the fatigue protocol until 30 minutes after completion of the protocol

    BORG-score, indicating the rate of perceived exertion for legs and breathlessness

Secondary outcomes

  1. Circuit time

    Time frame: Time will be recorded immediately after completion of the fatigue protocol

    Time to perform the fatigue protocol

Sponsors and collaborators

Lead sponsor

University Ghent

Other

Registry information

Official study title

The Utility and Validity of a High-intensity, Intermittent Exercise Protocol in Male Jumping Athletes

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Aug 31, 2020
Registry last updated
Nov 22, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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