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Completed

NCT Number: NCT06628609

Post-exercise Therapeutic Modalities on Functional Performance, Muscle Damage and Oxidative Stress of CrossFit® Athletes

Crossfit® is a training modality that consists in functional movements, constantly varied and executed at high intensity. Both training sessions and competitions involve physically demanding activities, which in addition to being performed at very high intensity also involves the aerobic metabolism pathway. These characteristics led to very high metabolic and muscular stress, as well as decrease in physical performance immediately after competitions and training sessions. The cumulative effects of the metabolic and muscular stress can be a precursor of injuries. Studies using different therapeutic modalities aiming to improve post-exercise recovery are needed in order to tackle this issue.

Oxidative stress induced by exercise has been a research field in constant growth, due to its relationship with the processes of fatigue, decreased production of muscle strength, and its ability to cause damage to the cell.

To the date there are no studies comparing the effects of different therapeutic modalities applied after an exercise session on functional performance, muscle damage, and oxidative stress in an exercise modality such as Crossfit®.

Therefore, the aim of this project is to assess and compare the effects of different therapeutic modalities on functional performance, muscle damage, and oxidative stress of Crossfit® athletes.

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Key information

Conditions

Exercise Recovery

Age range

18 year–35 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Laboratory of Phototherapy and Innovative Technologies in Health

São Paulo, 01504-001, Brazil

About this study

A randomized, crossover, controlled trial will be carried out.

All volunteers will be allocated to four interventions, and the order of the interventions will be randomized.

The outcomes will be assessed at baseline (prior to the Workout of the Day - WOD), and in different timepoints after the WOD.

The WOD will be consisted in finishing as quickly as possible a sequence of three exercises (Calories in Assault AirBike®, Hang Squat Clean and Box Jump Over), in a well-known series model for the athletes, without rest.

The investigators will analyze functional performance, biochemical markers of muscle damage and oxidative stress, the ratings of perceived exertion, and the volunteers satisfaction with the interventions.

All data will be analyzed both in their absolute values and in relation to their percentage variation from the values obtained in the pre-WOD (baseline) assessments.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

- Crossfit® amateur male athletes; - Do not present a history of musculoskeletal injury in the regions of the hips, knees and calves in the month preceding the study; - Are not using pharmacological agents; - Athletes should have been practicing the sport for at least 1 year; - Voluntarily commit to participate in all stages of the study.

Exclusion criteria

- Present musculoskeletal or joint injuries during data collection; - Present history of musculoskeletal injury in the regions of the hips, knees and calves in the month preceding the study.

Treatment and study plan

Passive recovery

Other

Volunteers laid in supine position resting for 30 minutes.

PBMT-sMF

Device

PBMT-sMF applied in the lower limbs with different doses per muscle group.

Shock wave

Device

Shock wave therapy applied in the lower limbs for 30 minutes.

Pneumatic compression

Device

Pneumatic compression applied in the lower limbs for 30 minutes.

Primary outcomes

  1. Change in functional performance

    Time frame: 1 hour after WOD (workout of the day).

    The functional performance will be assessed through the countermovement jump (CMJ) test.

Secondary outcomes

  1. Change in functional performance

    Time frame: 24 hours and 48 hours after WOD (workout of the day)

    The functional performance will be assessed through the countermovement jump (CMJ) test.

  2. Change in the activity of lactate dehydrogenase (LDH)

    Time frame: 1 hour, 24 hours and 48 hours after WOD (workout of the day).

    The activity of LDH will be analyzed from the blood samples collected from the participants through spectrophotometry and using specific reagent kits.

  3. Change in thiobarbituric acid (TBARS)

    Time frame: 1 hour, 24 hours and 48 hours after WOD (workout of the day).

    TBARS will be analyzed from the blood samples collected from the participants through spectrophotometry and using specific reagent kits.

  4. Change in carbonylated proteins

    Time frame: 1 hour, 24 hours and 48 hours after WOD (workout of the day).

    Carbonylated proteins will be analyzed from the blood samples collected from the participants through spectrophotometry and using specific reagent kits.

  5. Change in catalase (CAT) activity

    Time frame: 1 hour, 24 hours and 48 hours after WOD (workout of the day).

    CAT activity will be analyzed from the blood samples collected from the participants through spectrophotometry and using specific reagent kits.

  6. Change in superoxide dismutase (SOD) activity

    Time frame: 1 hour, 24 hours and 48 hours after WOD (workout of the day).

    SOD activity will be analyzed from the blood samples collected from the participants through spectrophotometry and using specific reagent kits.

  7. Participants' perceived exercise intensity

    Time frame: 1 minute after WOD (workout of the day), 1 minute post-treatment/intervention, 1 hour, 24 hours and 48 hours after WOD.

    The perception of exercise intensity will be assessed through a 0-100 Ratings of Perceived Exertion Scale: in this scale lower score, means lower degree of fatigue and higher score, means higher degree of fatigue.

  8. Participants' satisfaction regarding the interventions

    Time frame: 48 hours after WOD (workout of the day).

    The participants satisfaction regarding the interventions will be assessed through the LIKERT scale.

Sponsors and collaborators

Lead sponsor

University of Nove de Julho

Other

Registry information

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Oct 8, 2024
Registry last updated
Nov 6, 2024

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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