Therapeutic Modalities on Exercise Performance and Post-exercise Recovery of CrossFit® Athletes
Study Details
Study Description
Brief Summary
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.
However, to the date there are no studies investigating the effects of different therapeutic modalities in an exercise modality such as Crossfit®. Therefore, the aim of this project is to assess the effects of different therapeutic modalities on performance and muscle recovery of Crossfit® athletes.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
It will be carried out a randomized, crossover, controlled trial.
Volunteers will be allocated to four interventions, and the order of the interventions will be randomized.
The outcomes will be obtained at baseline (prior to the Workout of the Day - WOD), and in different timepoints after that.
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: the maximum number of free squats performed in 1 minute; the activity of creatine kinase (CK); the levels of Interleukin-6 (IL-6); 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.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Other: Control Passive recovery for 30 minutes |
Other: Passive recovery
Volunteers laid in supine position resting for 30 minutes.
|
| Experimental: PBMT-sMF Photobiomodulation therapy combined with static magnetic field, with a total treatment duration lasting for around 30 minutes. |
Device: PBMT-sMF
PBMT-sMF applied in the lower limbs with different doses per muscle group.
|
| Active Comparator: Shock wave Shock wave therapy applied for 30 minutes. |
Device: Shock wave
Shock wave therapy applied in the lower limbs for 30 minutes.
|
| Active Comparator: Pneumatic compression Pneumatic compression applied for 30 minutes. |
Device: Pneumatic compression
Pneumatic compression applied in the lower limbs for 30 minutes.
|
Outcome Measures
Primary Outcome Measures
- Change in functional capacity [1hour, 24 hours and 48 hours after WOD (workout of the day).]
The functional capacity will be assessed through the maximum number of free squat repetitions performed within 1 minute.
Secondary Outcome Measures
- Change in the activity of creatine kinase (CK) [1 hour, 24 hours and 48 hours after WOD (workout of the day).]
The activity of CK will be analyzed from the blood samples collected from the participants through spectrophotometry and using specific reagent kits.
- Change in the levels of interleukin-6 (IL-6) [1 hour, 24 hours and 48 hours after WOD (workout of the day).]
The levels of interleukin-6 will be analyzed from the blood samples collected from the participants through enzyme-linked immunosorbent assay (ELISA) and using specific reagent kits.
- Participants' perceived exercise intensity [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.
- Participants' satisfaction regarding the interventions [48 hours after WOD (workout of the day).]
The participants satisfaction regarding the interventions will be assessed through the LIKERT scale
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Crossfit® amateur male athletes
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Do not present a history of musculoskeletal injury in the regions of the hips, knees and calves in the month preceding the study;
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Are not using pharmacological agents;
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Athletes should have been practicing the sport for at least 1 year;
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Voluntarily commit to participate in all stages of the study.
Exclusion Criteria:
- Present musculoskeletal or joint injuries during data collection.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Laboratory of Phototherapy and Innovative Technologies in Health | São Paulo | Brazil | 01504-001 |
Sponsors and Collaborators
- University of Nove de Julho
Investigators
- Principal Investigator: Ernesto Cesar Pinto Leal Junior, Ph.D., Full Professor
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 3.997.120-1