About this trial

The aims of the study are:

1. To examine skeletal muscle and blood metabolites during an official basketball game and to relate those to skeletal muscle performance during and after the game. 2. To investigate whether skeletal muscle and blood metabolites are related to game-induced fatigue. 3. To relate field activity during a basketball game with the responses of skeletal muscle and blood metabolites. 4. To investigate how blood lactate reflects muscle lactate concentration during a basketball game. 5. To determine whether temporary fatigue develops during a basketball game. game.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Health status: were free of recent musculoskeletal injuries and/or illnesses (≥ 8 months before the study).

Not consuming ergogenic supplements/medications (≥ 6 months before the study)

Not smokers

Disqualifiers

Completion of the pre-determined participation time during the experimental game.

Completion of all field measurements.

Completion of all pre-determined sampling points for biological tissue.

Trial design

Design model

Single group

Treatments tested in this trial

BASKETBALL GAME
Other intervention
Participants will arrive 1.5 hours pre-game for initial vastus lateralis muscle biopsies and blood sampling under local anesthesia (20 mg/ml xylocaine without adrenalin). They will be fitted with IMU sensors and heart rate monitors. Volunteers are randomly assigned to teams(6 teams) for a full 40-minute game. During the match, physiological measurements will be performed at fixed times (pre, at half-time, and post-match) and after intense exercise periods (HR\>90% max, high-speed runs\>18km/h) within the four 10-min periods. Three groups provide samples: Group 1 (n=15): rest, half-time, end-game. Group 2 (n=8): rest, post-intense period in 1st/3rd periods. Group 3 (n=7): rest, post-intense period in 2nd/4th periods. Ten players serve as substitutes. Games will start at 17.00 - 18 p.m. to avoid diurnal variations and will be held under normal environmental conditions. A standardized 30-min warm-up period will be performed before each game.

Treatment groups

30 Participants

are divided into 1 treatment group

Group A: BASKETBALL GROUPExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Measurement of countermovement jump height

Will be measured using a force platform system

Time frame

Change from baseline to the: a. 20th minute (half-time) and 40th minute (end of the game) (N=10), b. 5th minute (mid-1st period) and 25th minute (mid-3rd period) (N=10) and c. 15th minute (mid-2nd period) and 35th minute (mid-4th period) (N=10).

2

Bilateral strength peak force and rate of force development on mid-thigh pull

Will be measured using a dynamometer.

Time frame

Change from baseline to the: a. 20th minute (half-time) and 40th minute (end of the game) (N=10), b. 5th minute (mid-1st period) and 25th minute (mid-3rd period) (N=10) and c. 15th minute (mid-2nd period) and 35th minute (mid-4th period) (N=10).

3

Measurement of maximal sprinting speed over 5 meters

5-m sprinting speed will be assessed on the basketball court using infrared photocells

Time frame

Change from baseline to the: a. 20th minute (half-time) and 40th minute (end of the game) (N=10), b. 5th minute (mid-1st period) and 25th minute (mid-3rd period) (N=10) and c. 15th minute (mid-2nd period) and 35th minute (mid-4th period) (N=10).

4

Measurement of maximal sprinting speed over 20 meters

20-m sprinting speed will be assessed on the basketball court using infrared photocells

Time frame

Change from baseline to the: a. 20th minute (half-time) and 40th minute (end of the game) (N=10), b. 5th minute (mid-1st period) and 25th minute (mid-3rd period) (N=10) and c. 15th minute (mid-2nd period) and 35th minute (mid-4th period) (N=10).

Secondary outcomes

1

Body mass

Body mass will be measured using a beam balance

Time frame

Change from baseline (pre-game) to 40 minutes of the game

2

Body height

Body height will be measured using a beam balance with a stadiometer

Time frame

At baseline

3

Body mass index (BMI)

BMI will be calculated using the Quetelet's equation

Time frame

At baseline

4

Body fat (BF)

Body fat (%) will be assessed by whole-body dual-energy X-ray absorptiometry (DXA)

Time frame

At baseline

Analysis of Bioenergetics and Fatigue Responses in Basketball (TEAM)

About this trial

Eligibility criteria

Qualifiers

Disqualifiers

Trial design

Treatments tested in this trial

Treatment groups

Trial outcomes

Primary outcomes

Secondary outcomes

Other outcomes

Sponsors and contacts