Ignite Creation Date:
2024-05-06 @ 1:08 PM
Last Modification Date:
2024-10-26 @ 1:09 PM
Study NCT ID:
NCT03947801
Status:
COMPLETED
Last Update Posted:
2022-06-02
First Post:
2019-05-08
Brief Title:
Dairy Consumption During a High-intensity High-volume Training Week in Young Athletes
Sponsor:
Brock University
Organization:
Brock University
Study Overview
Official Title:
Dairy Consumption During a High-intensity High-volume Training Week in Young Athletes
Status:
COMPLETED
Status Verified Date:
2022-05
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Our proposed study is a 5-d double-blind randomised cross-over trial seeking to simulate a training identification camp in competitive adolescent soccer players
The purpose of the proposed study is to investigate whether increased protein consumption by Greek yogurt compared to an isoenergetic carbohydrate CHO control supplement consumed immediately following exercise training prior to sleep and between breakfast and lunch for a week during an intense training period high volume high intensity will
Attenuate the pro-inflammatory response cytokines acute phase proteins
Reduced the severity of muscle damage and impairment creatine kinase
Maintain performance
Secondary outcome measures
- Increase bone turnover in favour of formation
The purpose of the proposed study is to investigate whether increased protein consumption by Greek yogurt compared to an isoenergetic carbohydrate CHO control supplement consumed immediately following exercise training prior to sleep and between breakfast and lunch for a week during an intense training period high volume high intensity will
Attenuate the pro-inflammatory response cytokines acute phase proteins
Reduced the severity of muscle damage and impairment creatine kinase
Maintain performance
Secondary outcome measures
- Increase bone turnover in favour of formation
Detailed Description:
The proposed study is a randomized double-blinded cross-over trial The protocol will consist of an information session two identical training camps consisting of 5 consecutive days of intensified soccer training differing only by nutritional intervention and identical pre-and post-training session testing Each testing block will be separated by 28-d to allow for an adequate wash-out and recovery period during which participants would resume their regular soccer activities
Study Procedures
All tests and measurements will be performed within eight-weeks Specifically participants will attend 1 information session two identical pre- and post- trainingtesting sessions and two identical soccer specific training camps
Information session
One week prior to the initial soccer specific training camp participants will be informed of all tests and procedures that will take place and be familiarized with all testing protocols
Pre- and Post-training testing
All participants will be tested twice on the day before pre and day following post the 5-d soccer specific training camp Specifically Participants will arrive at the University for pre- and post-training testing in the morning at the same time Body composition measurements will be performed eg standingseated height mass body fat followed by fasted venous blood and saliva sampling A standardized breakfast would then be provided followed by an adequate rest and digest period before performance testing 15h Performance testing would include a battery of soccer specific tests that cover power counter-movement jump broad jump speed 10m and 20m sprint agility modified 5-0-5 and aerobic capacity beep-test During both pre-and-post-testing sessions participants would consume the same standardised breakfast and perform the same tests in the same order for consistency amongst trials which would be repeated between the two testing blocks
Soccer training
The simulated 5-d soccer-specific training will be structured to mimic a heavy-volume high-intensity training camp Training sessions would occur at the same time each day in the evening for consistency Drillsexercises will be administered by a certified technical soccer coach and knowledgeable training staff Each session will began with a 15 min dynamic warm-up followed by 90 min of soccer-specific training ending with a 15 min cool-down The 90 min of soccer-specific training will be performed at maximal effort and consist of agility sprinting and plyometric exercises as well as ball-handling small-sided games rondo and shooting Following each training session rating of perceived exertion RPE will be measured as an indicator of internal load
FoodDrink supplement consumption
During the study three servings of 160 g of 0 plain GY 115 kcals 17 g protein 115 g carbs 0 fat or 30 g of isoenergetic CHO 115 kcal 004 g protein 286 g carbs 0 fat will be provided to participants immediately following the training session 1 h prior to bedtime as well as one serving between breakfast and lunch on the subsequent day The yogurt will be sweetened or flavored with a non-caloric vanilla flavouring to match the taste of the control supplement The CHO control supplement group will be an isoenergetic dose of a maltodextrin-based semi-solid pudding This product will be made from non-fat vanilla pudding powder 1 part maltodextrin 4 parts and water This product has been designed to resemble the consistency and texture of Greek yogurt
Measurements
Questionnaires Participant Screening and Medical History Training History Food frequency Questionnaire FFQ sessional RPE
Anthropometric and body composition measurements height seated height body mass and body fat percentage using bioelectrical impedance analysis BIA InBody520 Biospace Co Ltd Seoul S Korea
Somatic maturity maturity offset years from the age of peak height velocity will be calculated based on height seated height and weight measurements
Exercise performance will be examined prior to as well as following each training intervention week These tests are common in soccer and athletes are familiar with them To limit confounding exercise influence on both biochemical and performance parameters participants will be asked to refrain from other activities outside those prescribed to them during the training sessions and 48h prior to the initial pre-assessment visit
Venous blood and saliva samples will be collected on 4 separate occasions 24h prior and 24h following the last training session of each training intervention week To control for circadian rhythm the exercise session and related blood and saliva samples will be conducted at the same time of day Saliva samples will be used to examine endocrine response Venous blood samples will be used to examine inflammatory markers cytokines - IL-6 IL-10 and TNF-α c-reactive protein CRP IGF-I and indicators of muscle fatiguedamage CK Secondary measures may include irisin oxidative stress TBARS and ROS and bone turnover by examining circulating markers of bone formation PINP Osteocalcin BAP OPG and of bone resorption CTX TRAP RANKL
Study Procedures
All tests and measurements will be performed within eight-weeks Specifically participants will attend 1 information session two identical pre- and post- trainingtesting sessions and two identical soccer specific training camps
Information session
One week prior to the initial soccer specific training camp participants will be informed of all tests and procedures that will take place and be familiarized with all testing protocols
Pre- and Post-training testing
All participants will be tested twice on the day before pre and day following post the 5-d soccer specific training camp Specifically Participants will arrive at the University for pre- and post-training testing in the morning at the same time Body composition measurements will be performed eg standingseated height mass body fat followed by fasted venous blood and saliva sampling A standardized breakfast would then be provided followed by an adequate rest and digest period before performance testing 15h Performance testing would include a battery of soccer specific tests that cover power counter-movement jump broad jump speed 10m and 20m sprint agility modified 5-0-5 and aerobic capacity beep-test During both pre-and-post-testing sessions participants would consume the same standardised breakfast and perform the same tests in the same order for consistency amongst trials which would be repeated between the two testing blocks
Soccer training
The simulated 5-d soccer-specific training will be structured to mimic a heavy-volume high-intensity training camp Training sessions would occur at the same time each day in the evening for consistency Drillsexercises will be administered by a certified technical soccer coach and knowledgeable training staff Each session will began with a 15 min dynamic warm-up followed by 90 min of soccer-specific training ending with a 15 min cool-down The 90 min of soccer-specific training will be performed at maximal effort and consist of agility sprinting and plyometric exercises as well as ball-handling small-sided games rondo and shooting Following each training session rating of perceived exertion RPE will be measured as an indicator of internal load
FoodDrink supplement consumption
During the study three servings of 160 g of 0 plain GY 115 kcals 17 g protein 115 g carbs 0 fat or 30 g of isoenergetic CHO 115 kcal 004 g protein 286 g carbs 0 fat will be provided to participants immediately following the training session 1 h prior to bedtime as well as one serving between breakfast and lunch on the subsequent day The yogurt will be sweetened or flavored with a non-caloric vanilla flavouring to match the taste of the control supplement The CHO control supplement group will be an isoenergetic dose of a maltodextrin-based semi-solid pudding This product will be made from non-fat vanilla pudding powder 1 part maltodextrin 4 parts and water This product has been designed to resemble the consistency and texture of Greek yogurt
Measurements
Questionnaires Participant Screening and Medical History Training History Food frequency Questionnaire FFQ sessional RPE
Anthropometric and body composition measurements height seated height body mass and body fat percentage using bioelectrical impedance analysis BIA InBody520 Biospace Co Ltd Seoul S Korea
Somatic maturity maturity offset years from the age of peak height velocity will be calculated based on height seated height and weight measurements
Exercise performance will be examined prior to as well as following each training intervention week These tests are common in soccer and athletes are familiar with them To limit confounding exercise influence on both biochemical and performance parameters participants will be asked to refrain from other activities outside those prescribed to them during the training sessions and 48h prior to the initial pre-assessment visit
Venous blood and saliva samples will be collected on 4 separate occasions 24h prior and 24h following the last training session of each training intervention week To control for circadian rhythm the exercise session and related blood and saliva samples will be conducted at the same time of day Saliva samples will be used to examine endocrine response Venous blood samples will be used to examine inflammatory markers cytokines - IL-6 IL-10 and TNF-α c-reactive protein CRP IGF-I and indicators of muscle fatiguedamage CK Secondary measures may include irisin oxidative stress TBARS and ROS and bone turnover by examining circulating markers of bone formation PINP Osteocalcin BAP OPG and of bone resorption CTX TRAP RANKL
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None