davis cacsm 2019 presentation

11/11/2019

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All rights reserved 2018Any opinions or scientific interpretations expressed in this presentation

are those of the author and do not necessarily reflect the position or policy of PepsiCo Inc.

Gatorade Sports Science InstitutePepsiCo Global Nutrition R&D

Performance Testing and Practical Applications for Recovery with Team Sports

JK Davis, PhD, CSCS

All rights reserved 2018

OBJECTIVE

1. What / Challenges of performance assessments

2. Performance assessment • Testing• Interpretation • Feedback

3. Value of nutrition on functional recovery

4. Incorporating physiological and perceptual measures to individualize recovery


Common methods to assess recovery after team sports

• Sprints

• Force Plates

• Yo-Yo Testing

• Isokinetic

Performance Assessment Testing

Force PlatesForce PlatesSprintsSprints

Pros/Cons of Performance AssessmentsPros/Cons of Performance Assessments

IsokineticIsokinetic

Minimal teams have this in house

Minimal teams have this in house

Challenging to test a large number of players in a short amount of time

Challenging to test a large number of players in a short amount of time

Inexpensive, time efficient setup

Inexpensive, time efficient setup

Movement not sport specific

Movement not sport specific

Challenging to ask/get professional

athletes perform repeated sprints

Challenging to ask/get professional

athletes perform repeated sprints

Able to look at multiple variables

Able to look at multiple variables

Expensive, logistic issue with large plates

Expensive, logistic issue with large plates

Test a large group of athletes in short amount of time

Test a large group of athletes in short amount of time

Time efficient, non-fatiguing

Time efficient, non-fatiguing


Value of Performance Assessment

Performance protocol customized to team / sport

• Fast

• Efficient

• Minimal fatigue testing

Important in understanding

recovery throughout

season

Insights for planning practice /

strength training


Baseline Testing

Establish baseline right before season to compare changes to during the season

SD and CV to understand what is a meaningful change

from baseline

2-3 days of testing of repeated measures in similar conditions

• Consistent protocol

• Non-fatigued

• Same time of day

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Intraday and Interday CV of Counter Movement Jumps Variables

Findings:

• Using a 3 day baseline protocol results showed that most CMJ variables demonstrate high intraday and interday reliability.

Gathercole, et al. Int. J Sport Phys Perf 10: 84-92, 2015


Gathercole, et al. Int. J Sport Phys Perf 10: 84-92, 2015

Intraday and Interday CV of Counter Movement Jumps Variables

Take Home Message:

1. What metrics to collect

2. Why are these metrics important for the sport

3. How will I communicate these metrics to the practitioner/athlete



Soccer24-78h

Rugby 24-72h

Basketball 24-48h

American Football 44-68h

Day Selected Dependent on Time Course of Recovery

Doeven, et al. BMJ Open Sport Exerc Med. 4:1-10, 2018

Davis, et al. Unpublished Observation All rights reserved 2018


Wednesday Thursday SundayTuesday Friday Saturday

Game

Game DaySunday

Monday

TestingPerformance Assessment

Game Day

Day Selected and Comparisons to Baseline Values

Lower Performance Assessment Measures


National Basketball Team players did CMJ pre and post game:

Findings:

• Significant in FT:CT ratio from baseline/pre game to post-game.

• 48 hours Counter Movement Jump variables to return to baseline values.

Spiteri, et al. J. Aust. Strength Cond. 21(S2)73-74. 2013


PERFORMANCE ASSESSMENT TESTING

Key Testing Takeaways

Consistency in protocol• Baseline and throughout the season

Metrics with low CV’s (<10%)

Time course of recovery for the sport

Having buy in from all influencers with the program

So why do we test and what is the main purpose?

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Interpretation and Feedback

Key Aspects of Interpretation

1. Goal determine a meaningful change from baseline values

2. Smallest Worthwhile Change

3. Important to work with Influencer on practical significance of an effect


Immediate feedback with performance assessment

Flagging athletes when they are not fully recovered

Problem solve why is player not recovering nutrition and/or recovery modalities

KEY DELIVERABLES AND FEEDBACK

Nutrition and Functional Recovery


Omega 3 and Explosive PowerBlack et al. 2018 European Journal of Sports Sciences

• 20 Professional Rugby Union players

• 5 weeks of pre-season training

• Players consumed 2 x drinks daily

15g protein, 14.5g CHO, 8.4g of Fat +

1546mg of Omega-3 PUFA


Omega 3 and Explosive Power

Black et al. 2018 European Journal of Sports Sciences

Take Home Message:

Adding Omega 3 During Pre-Season Training

1. Better maintenance of explosive power of CMJ

2. Reduce muscle soreness


Casein and Functional RecoveryAbbott et al. 2019 Int J Sports Physiol Perform

• 10 Professional Soccer players

• Crossover design, single-blind

• After two separate matches

40g Casein or 40g Carbohydrate

• Recovery assessed for 60h post-game

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Abbott et al. 2019 Int J Sports Physiol Perform

Take Home Message:

40g Casein 30min before sleep

1. Accelerates functional recovery

2. Reduce muscle soreness


Recovery: Considering Multiple Aspects


KEY RECOVERY COMPONENTS

Education

Perceptual Well-Being

Load Measures

PerformanceAssessment

Sleep

Nutrition Guidance & Consulting

Travel


ATHLETE RECOVERY COMPONENTS

PERFORMANCEASSESSMENT

Internal / External Load

PERCEPTUAL WELL-BEING

RECOVERY INTERVENTION

-Nutrition-Recovery Modalities-Load -SleepBODY

COMPOSITION


TAKE HOME MESSAGE

1. Performance Assessment – What can you do in a time efficient manner and do really well with the team.

2. Feedback – Quick turnaround with actionable results to help players recover.

3. Multiple Recovery Measures – Robust view important to individualize recovery.

4. Nutrition – Enhances functional recovery

5. Organizational Buy In - Key to success of the program.


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davis cacsm 2019 presentation

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