extreme - national strength and conditioning association ... · “extreme conditioning programs...
TRANSCRIPT
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Extreme Conditioning Programs: Evaluating and Managing the Risk
Danny McMillian, PT, DSc, OCS, CSCSClinical Associate ProfessorSchool of Physical TherapyUniversity of Puget SoundTacoma, WA
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Extreme?• Def. 1. Going to great or exaggerated lengths
• Def. 2: Exceeding the ordinary, usual, or expected
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A Definition of ECPs: Consortium for Health and Military Performance and American College of Sports Medicine Consensus Paper on Extreme Conditioning Programs in Military
Personnel
“Extreme conditioning programs (ECPs; e.g., CrossFit, Insanity, Gym Jones, and others) are characterized by high‐volume, aggressive
training workouts that use a variety of high‐intensity exercises and often timed, maximal number of repetitions with short rest periods
between sets.”
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Though popular…
• “…physicians and other primary care and rehabilitation providers have identified a potential emerging problem of disproportionate musculoskeletal injury risk, particularly for novice participants, associated with ECPs.” • Muscle strains, torn ligaments, stress fractures,• Mild to severe cases of potentially life‐threatening exertional rhabdomyolysis are reportedly occurring at increasing rates as the popularity of ECPs grows
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The Concerns• Is the purported greater injury risk over
traditional conditioning programs valid?
• Are these programs measurably inconsistent with accepted industry standard guidelines for safe and appropriate exercise prescription and progression?
• Would a functional conditioning advantage of ECPs mitigate an increased occupational and operational threat?
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One ECP Responds: An Answer, J. A. Glassman, 2012
• J.A. Glassman, PhD, CrossFit Chief Scientist• Father of CrossFit founder, Greg Glassman
• CrossFit Inc. established in 2000• Since 2003, blog of info and Workout of the Day (WOD) at crossfit.com
• 4,500 affiliated gyms• 35,000 Level 1 trainers
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The Aims of CrossFit:
• to forge a broad, general and inclusive fitness.
• to build a program that will best prepare trainees for any physical contingency — not only for the unknown, but for the unknowable.
“Our specialty is not specializing.”
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Glassman’s Equation
Constantly Varied Functional Movement @ High Intensity
+ Communal Environment
= Health
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One ECP Responds: An Answer, J. Glassman, 2012
• Offense was taken• 92‐page parsing of words and intent
• Key points: • CrossFit workouts are less extreme than those of ACSM‐sanctioned military PT.
• CrossFit workouts include individualizing through scaling or substitution of movements, as required, and always by prescribing an individual’s best effort.
• CrossFit is not suited to the regimentation of group drills that lead to overexertion.
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One ECP Responds: An Answer, J. Glassman, 2012, cont.
“Exertional heat illnesses, including rhabdomyolysis, and participation in
conditioning programs are gradually rising in response to war time risks, and not the troops’
vain demand for getting ripped.”
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One ECP Responds: An Answer, J. Glassman, 2012, cont.
“The claims of the Consensus Paper must be rejected because the CHAMP and ACSM authors rely on anecdotal reports of exertional rhabdomyolysis,
providing no data on the increase in popularity of ECPs. Nor do they provide any data on actual ECP
participation in the military, much less a causal analysis showing from data that any increase leads the reported illnesses and alleged injury rates, as causality requires.”
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One ECP Responds: An Answer, J. Glassman, 2012, cont.
• Exhibit A• YOU ARE RESPONSIBLE FOR HEEDING YOUR OWN BODY’S LIMITATIONS. YOU ARE RESPONSIBLE FOR SETTING YOUR OWN LEVEL OF EXERTION. DO NOT EXCEED YOUR BODY’S LIMITATIONS. ONLY YOU KNOW WHAT THESE LIMITS ARE
• CF Affiliate Consent and Release Form
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Summary of ECP Popularity
• Exponential explosion in the last 5‐10 years• Commonalities
o Program design Variety, intensity, work:rest ratios High perceived exertion
o Brand design and marketing strategies Population specific Egocentric‐ plays on toughness Promote loyalty and discipleship
• Tremendous amount of anecdotal success stories
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A Training LegacyPopularity of running and bodybuilding greatly
increased in the 1970s and defined the standards of popular fitness for the next 30 years
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Traditional methods v. ECPs
• Traditional military physical training
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Traditional methods v. ECPs
Run M/W/F Lift Tue/Thur
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Traditional methods v. ECPs
Drudgery Passion
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Concerns for Extreme Conditioning
Volume and intensity
Functionality/modal domains
Program planning/ coaching
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Acknowledged and addressed?
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Addressed for risk reduction or badge of honor??
“Countless bad‐asses from sporting and special operations communities, long regarded as bulletproof, have been
burned at the stake of ego and intensity. "As it turns out, the burning is rhabdo, and we now find ourselves obligated not just to explain CrossFit’s potency
but to warn of its potential lethality.“‐ CrossFit Journal Issue 38, Oct 2005
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• Documented cases from many different forms of exercise and activity• Military trainee's and active duty personnel • Marathoners• Middle school PE participants• Recreational exercisers
• NO DISTINCT CAUSE AND EFFECT RELATIONSHIP WITH ECP's at this time• Many other confounding factors
Cause and Effect
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Functional Movement• "Functional movements are universal motor
recruitment patterns"‐ The CrossFit Training Guide• "Include the same movement pattern and the same
relative timing as the “goal movement”‐ Paul Chek
• "Involve three planes of motion and all joints"‐ Gary Gray and Vern Gambetta
• "Functional training is any form of training that improves any relevant biomotor ability that does not come at the detriment to other biomotor abilities"
‐Dr. Mel Siff
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Are they really"functional" exercises?
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Or just a little exotic?
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How dangerous are these "functional" exercises?
Especially when fatigued.
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Effects of Fatigue on Form• Does performing technically complex lifts for
high reps in a state of fatigue concern you?
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Bad execution of exercise is everywhere
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Courtesy of exuberantanimal.com
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Coaching is Imperative
• Finding a balance between technique and intensity is one of the things that separates good trainers from great trainers, and it’s one of the keys to getting optimal results from the CrossFit program.
The CrossFit Journal, March 3, 2010
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What makes a good coach?
• Properly educated and trained• Meet pre‐requisite standards
• 17 years of age to a college degree
• Certified through a credible educational institute• Can we be sure of quality?
• Training• Accreditation
• May be impossible to ensure quality.
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Evaluating ECPs Benefits
• Functionality of blending strength/endurance• Variety minimizes overuse injury and prepares for broad
ranging physical requirement• Time Efficiency• Mental Toughness• Potential anabolic effect• Camaraderie
• The Art of Suffering
• Tapping into the Primal
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Evaluating ECPs Benefits
• Functionality of blending strength/endurance
• Variety minimizes overuse injury and prepares for broad‐ranging physical requirement
• Time Efficiency• Mental Toughness• Potential anabolic effect• Camaraderie
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Evaluating ECPs Benefits
• Functionality of blending strength/endurance• Variety minimizes overuse injury and prepares for broad
ranging physical requirement
• Time Efficiency• Mental Toughness• Potential anabolic effect• Camaraderie
• The Art of Suffering• Tapping into the Primal
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Evaluating ECPsBenefits
• Functionality of blending strength/endurance• Variety minimizes overuse injury and prepares for broad
ranging physical requirement• Time Efficiency
• Mental Toughness• Potential anabolic effect• Camaraderie
• The Art of Suffering
• Tapping into the Primal
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Evaluating ECPsBenefits
• Functionality of blending strength/endurance• Variety minimizes overuse injury and prepares for broad
ranging physical requirement• Time Efficiency• Mental Toughness
• Potential anabolic effect• Camaraderie
• The Art of Suffering• Tapping into the Primal
Mod‐high volume & intensity with relatively short rest intervals is associated with
increased
Testosterone
TCSome ECPs
associated with
high cortisol levels, thus catabolism
Kraemer, J Strength Cond Res,2012
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Evaluating ECPsBenefits
• Functionality of blending strength/endurance• Variety minimizes overuse injury and prepares for broad
ranging physical requirement• Time Efficiency• Mental Toughness• Potential anabolic effect
• Camaraderie• The Art of Suffering
• Tapping into the Primal
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Evaluating ECPsBenefits
• Functionality of blending strength/endurance• Variety minimizes overuse injury and prepares for broad
ranging physical requirement• Time Efficiency• Mental Toughness• Potential anabolic effect• Camaraderie
• The Art of Suffering
• Tapping into the Primal
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Needs Analysis
• The first step in this process is to define your population’s needs.• Remember that needs
are different than desires!
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What’s your function?• "Functional training is any form of training that
improves any relevant biomotor ability that does not come at the detriment to other biomotor abilities" ‐ ‐Dr. Mel Siff
• Dominant biomotor abilities
F= force or strengthS= speedE= endurance
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10 km runner
EnduranceSpeed
Strength
Muscle endurance
Power
Power‐endurance
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SWAT
Muscle endurance
Power
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Long‐term Development Model
http://rugbyontario.com/en‐us/development/whatislongtermrugbydevelopment.aspx
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Iceberg Effect
Slide courtesy of Dr. Darin Padua, U of North Carolina
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Balyi’s LTAD Model
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Chronological Age v. Training Age
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If our young soldiers are not arriving with a movement skill set…
…then we must train fundamentals well…
…in order to expect effective participation in ECPs.
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Sample CrossFit On‐Ramp Program
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WORK CAPACITY
Physical Readiness
Climbing Jumping & Vaulting
Survival Swimming
Combatives
Tumbling
Individual Movement Tech
Lifts & Carries
RunningCrawling
Foot Marching
Aerobic and Anaerobic Endurance Strength
Flexibility Movement Efficiency Body Composition
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Commitment to Fundamentals• “What will inevitably doom a physical training program and dilute a coach’s efficacy is a lack of commitment to fundamentals.”• Greg Glassman, Founder of CrossFit
• “Programs that start with the specifics and ignore the basic core elements of strength and power limit optimal development over time and set the stage for injury.”• Wm Kraemer, Editor, J Strength Cond Res
• “Nobody wants to be a yellow belt anymore, it’s straight to the black belt.”• Frank Palkoska, Director, US Army Physical Readiness Division
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Training the Components of Fitness
Working• W = F x D• P = (F x D)/T
Training• Def: Preparation for a task
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Aerobic v. Anaerobic Endurance Training“High‐intensity interval training is a time‐efficient strategy to
increase skeletal muscle oxidative capacity and induce specific metabolic adaptations during exercise that are comparable to
traditional endurance training.”‐‐‐Burgomaster, J Physiol, 2008
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Resistance Training
• Fundamental goal:• improve maximal strength and power
• “It is upon these two fundamental pillars of neuromuscular fitness that one can then extend and expand physical capabilities to include local muscular endurance and task‐specific performances.”• Kraemer, J Strength Cond Res, 2012
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Baechle TR. Essentials of Strength and Conditioning. Human Kinetics. 2008.
Strength Continuum
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Exercise Antagonism From Concurrent Strength/Endurance Training
Problem• Dual demands of motor units• Stimulation of catabolic
signaling • Oxidative signaling (AMPK)• Volume of work• Overreaching
Potential Solution• Rest and recovery between
training days• Reduced volume of exercise• Energy capability and pre‐
exercise diagnosis for capability
• Careful periodization of work totals from all sources
• Careful sequencing and reduction of aerobic stimulus over training week
Kraemer, NSCA National Conference, 2012
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Exercise Antagonism, cont.
Problem• Too much high intensity
volume and a lack of metabolic matching with sport demands
• Recovery and rest not valued enough in training programs!
Solutions• Better needs analyses• Better matching with sport
demands• Sport Practice Assessments • Monitoring progression and
capacities• Quality over quantity!
Kraemer, NSCA National Conference, 2012
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Specificity• “Fit for what?” • For soldiers, the answer is “Fit for current and potential training and combat missions.”
• Tactical PT• operationally relevant degree of intensity and volume
• preceded by general fitness development (strength, endurance, movement skills).
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Scheduling GPP & SPP
Emphasis on GPP
GPP > SPP
SPP > GPP
Emphasis on SPP
Deployment
Evaluation/Planning
Q1
Q2
Q3
Q4
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What does GPP look like?• Physical training uniform v. tactical uniform
• Greater variety of events
• Often looks like sports camp • Lot of teaching
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What does military SPP look like?
• More PT time with military gear
• Less variety; more emphasis on tactical proficiency
• Operationally‐relevant degree of volume and intensity
• A few, well‐placed gut checks
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Meet operationally‐defined objectives
Q1
Q2
Q3
Q4
70% Solution
85% Solution
50% Solution
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Methodical v. Random Approach to Training
• To the degree that specific abilities are required, a methodical approach is indicated• Otherwise, it is difficult
to ensure mastery of critical skills and abilities
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Managing ECP Workouts:Before, during and after participation
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Criteria for Participation
• Pre-participation medical examination• Identify medical conditions‐ HTN, heat injury hx, mTBI
• Pre‐participation movement screening• Example: Functional Movement Screen
• Initial training sessions • Establish baseline fitness
• strength/endurance/mobility• Education on self‐monitoring and regulation
• Warning signs of injury
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In order to do this…
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…we need to optimize this:
Mobility Force Production
Neuromuscular Control
Endurance(Work Capacity)
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Sample Power‐Endurance WorkoutPurpose: Improve power‐endurance performance and maintain mental focus in the face of deep fatigue
• Structure• Complex movements and/or risky activities first
• Sequence to avoid excess local muscular fatigue
• Alternate primary muscle groups or dominant plane of movement
• Order• Turkish Get‐Ups
• 8‐12 reps with each arm• Rotational resistance (L/R, 3x20s)• Kettle‐Bell Swings (3‐4x15)• MedBall Throws (variable parameters)• Air Squat/Push‐ups/Pull‐ups (or elbows to knees)
• 15/10/5 reps per minute x 15‐30 minutes
• Anaerobic Big Finish (race pace)• Row (500M), Run (400/800M), Bike (max distance in 2‐min)
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The Role of Recovery
Overload‐Recover‐Repeat‐Progress
Scheduling recovery Between efforts within the same session/day Weekly Monthly Yearly
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Recovering from ECPs• Avoid too much competition level load/intensity/volume– Don’t beat your head against the wall for time every day of the week
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Training Maxim
“On our hard days we don’t train hard enough; on our easy days we don’t train easy enough.”
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Recovering from ECP Workouts
• Make sleep a priority• Plan around it
“…critical metabolic, immunologic and restorative physiologic processes are negatively affected by sleep restriction, sleep disturbance, and forced de‐synchrony of the human circadian sleep/wake phase.”
‐‐Samuels, Neurol Clin, 2008
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Recovering from ECP Workouts
• Fuel the machine• Enough calories• Nutrient content • Nutrient timing• Hydration
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SummaryWhat we’ve learned
• Risk of ECPs is poorly defined
• Training principles vary widely among ECPs– Often, but not always at
odds with evidenced‐based training practices
• Actual practice of ECPs often contradictory to stated principles
Recommendations• Analyze the physical requirement
• Assess the individual• Design the program based on best evidence– Lay a foundation– Progress systematically– Plan recovery
• Focus the passion
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References• Baechle, TR, & Earle, RW. Essentials of Strength Training and Conditioning.
Champaign, IL: Human Kinetics,2008.• Balyi I,. Hamilton A. Long‐Term Athlete Development: Trainability in Childhood and
Adolescence. Windows of Opportunity. Optimal Trainability, 2004.• Victoria: National Coaching Institute British Columbia & Advanced Training and
Performance Ltd. • Bergeron, Michael F.; Nindl, Bradley C.; Deuster, Patricia A.; Baumgartner, Neal; Kane,
Shawn F.; Kraemer, William J.; Sexauer, Lisa R.; Thompson, Walter R.; O'Connor, Francis G., Current Sports Medicine Reports (Lippincott Williams & Wilkins) Nov/Dec2011, Vol. 10 Issue 6, p383.
• Bishop, PA; Jones, E; Woods, AK. Recovery From Training: A Brief Review. Journal of Strength & Conditioning Research 22(3):1015‐1024, May 2008.
• Bompa, TO; Haff, GG. Periodization: Theory and Methodology of Training, 5th ed. Champaign, IL: Human Kinetics, 2009.
• Brukner and Khan. Clinical Sports Medicine, 3rd Ed. McGraw‐Hill, 2006, pgs. 875‐886. • Bullock SH, Jones BH, Gilchrist J, Marshall SW, Prevention of Physical Training–Related
Injuries: Recommendations for the Military and Other Active Populations Based on Expedited Systematic Reviews. Am J Prev Med 2010 Jan;38(1 Suppl):S156‐81.
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References• Burgomaster KA, et al. Similar metabolic adaptations during exercise after low volume
sprint interval and traditional endurance training in humans. J Physiol 586.1:151–160;2008.
• CrossFit Training Guide. http://library.crossfit.com/free/pdf/CFJ_Seminars_TrainingGuide_042012.pdf
• Ford P, et al. The Long‐Term Athlete Development model: Physiological evidence and application, Journal of Sports Sciences, 29:4, 389‐402.
• Glassman JA, Consortium for Health and Military Performance and American College of Sports Medicine Consensus Paper on Extreme Conditioning Programs in Military Personnel: An Answer. CrossFit Journal, 2012. http://journal.crossfit.com/2012/09/consortium‐for‐health‐and‐military‐performance‐and‐american‐college‐of‐sports‐medicine‐consensus‐pap.tpl
• Haff GG, Haff EE. Resistance Training Program Design. In: Malek M, Coburn JW, eds. Essentials of Personal Training. Champaign, IL: Human Kinetics, 2011:359‐401.
• Kraemer WJ, Szivak TK. Strength training for the warfighter. J Strength Cond Res 26(7):S107–S118;2012.
• Kraemer, WJ, & Fleck, SJ. Optimizing Strength Training. Champaign, IL: Human Kinetics, 2007.
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References• Kurz, T. Science of Sports Training: How to Plan and Control Training for Peak
Performance, 2nd Ed. Stadion, 2001.• Mackinnon, LT a nd Hooper, SL. Overtraining and Overreaching: causes,
effects, and prevention. In Exercise and sport science, ed. WE Garrett and DT Kirkendall. (Philadelphia: Lippincott Williams & Wilkins, 487‐498), 2000.
• Meeusen, R, Duclos, M, Gleeson, M, Rietjens, G, Steinacker, J, and Urhausen, A. Prevention, diagnosis and treatment of the overtraining syndrome. EurJSport Sci 6: 1–14, 2006.
• Nader GA. Concurrent Strength and Endurance Training: From Molecules to Man. Med. Sci. Sports Exerc., 38(11):1965‐1970;2006.
• Rhodri S. The Youth Physical Development Model: A New Approach to Long‐Term Athletic Development. Strength and Conditioning Journal 34(3);61‐72, 2012.
• United States Army Public Health Command. What Army Leaders Should Know about Extreme Conditioning Programs. Public Health Notice No: 0312‐01. http://phc.amedd.army.mil/PHC%20Resource%20Library/PHN_No_0312‐01_Extreme_Conditioning_Programs_and_the_Army_2012.pdf