Sports Medicine Sports Medicine Sports Medicine Sports Medicine
David W. Hang, M.D.
David W. Hang, M.D.
Assistant Clinical Professor of Orthopedic Assistant Clinical Professor of Orthopedic
Surgery Surgery
University of California at Los Angeles University of California at Los Angeles
Director Director
Shin Kong Orthopedic Sports Medicine Institute
Shin Kong Orthopedic Sports Medicine Institute
SKOSMI UCLA
Sports Medicine Sports Medicine
Sports Medicine Program Sports Medicine Program
2/3 of injury occurs during practice (high school)
2/3 of injury occurs during practice (high school)
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Team Physician Team Physician
Orthopedist or family practice physician Orthopedist or family practice physician
Basic medical knowledge and emergency evaluation Basic medical knowledge and emergency evaluation
Supportive and cooperation with the team (AT, PT, coach) Supportive and cooperation with the team (AT, PT, coach) Prescribe pre-injury conditioning and post-injury care
Prescribe pre-injury conditioning and post-injury care
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Athletic Trainer Athletic Trainer
Front-line, on site director Front-line, on site director
Provide optimal sports healthcare
Provide optimal sports healthcare
Direct supervision of physician
Direct supervision of physician
Liaison between different parties
Liaison between different parties
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Athletic Trainer Athletic Trainer
Facility and materials Facility and materials
Injury prevention (conditioning) Injury prevention (conditioning)
Assessment of injury Assessment of injury
Appropriate first-aid Appropriate first-aid
Determination of return to sport Determination of return to sport
Appropriate medical profession referrals Appropriate medical profession referrals
Effective rehabilitation program Effective rehabilitation program
Educational and counseling program Educational and counseling program
Organize physical examination Organize physical examination
Role model for future medical professional
Role model for future medical professional
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Playing Surfaces Playing Surfaces
Little research other than grass and synthetic turf Little research other than grass and synthetic turf Inconclusive results
Inconclusive results
Astro turf > grass > Tartan turf ??
Astro turf > grass > Tartan turf ??
More serious sprains and torn ligament on grass ? More serious sprains and torn ligament on grass ? Synthetic surface
Synthetic surface
– Prepatellar bursitis Prepatellar bursitis
– Olecranon bursitis Olecranon bursitis
– Heat Stroke Heat Stroke
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Screening examination
Legal and insurance requirement Legal and insurance requirement
Determine overall health of the individual Determine overall health of the individual
Assess physical maturity Assess physical maturity
Detect conditions that predispose to injury Detect conditions that predispose to injury
Identify and treat injuries before participation Identify and treat injuries before participation
Baseline for return to participation
Baseline for return to participation
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Documentation Documentation
States specific form States specific form
Parental / guardian consent Parental / guardian consent
– Examination Examination
– Participation Participation
– Treatment Treatment
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Examination Examination
Individual / office based Individual / office based
Group / station based
Group / station based
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Office Based Examination Office Based Examination
Privacy, comprehensive, better medical records Privacy, comprehensive, better medical records
High cost, time consuming, increased demand
High cost, time consuming, increased demand
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Station Based Examination Station Based Examination
Reduce cost, time efficient, team staff involvement Reduce cost, time efficient, team staff involvement
Impersonal, great deal of coordination
Impersonal, great deal of coordination
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Components of Screening Examination Components of Screening Examination
Detailed medical history Detailed medical history
PMH, PSH, Allergy, Rx, Immunization, FH PMH, PSH, Allergy, Rx, Immunization, FH
CV – murmurs, syncopy, CP, SOB CV – murmurs, syncopy, CP, SOB
Neurological injuries – concussion Neurological injuries – concussion
Heat / cold injury Heat / cold injury
Menstruation Menstruation
Physical Examination Physical Examination
General General
Dental Dental Genital Genital
Maturation (Tanner stages)
Maturation (Tanner stages)
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Recommendation Recommendation
Clearance without restriction Clearance without restriction
Clearance with restriction
Clearance with restriction (15%) (15%)
Disqualification
Disqualification (1%) (1%)
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Disqualifying Conditions Disqualifying Conditions
* * Always consider alternative activities !!! Always consider alternative activities !!!
Atlantoaxial Instability
Atlantoaxial Instability Musculoskeletal Musculoskeletal Cardiovascular Gynecologic
Cardiovascular Gynecologic Visual Impairment
Visual Impairment Hepato- / Splenomegaly Hepato- / Splenomegaly Neurologic
Neurologic Kidney Abnormalities Kidney Abnormalities Inguinal Hernia
Inguinal Hernia Sickle Cell Trait Sickle Cell Trait Dermatologic
Dermatologic Testicular Testicular Pulmonary
Pulmonary Acute Illness Acute Illness
HIV HIV
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AA Instability AA Instability
No contact / collision sports No contact / collision sports
No repetitive flexion / extension No repetitive flexion / extension
C-spine radiograph in Down’s (10 - 20%)
C-spine radiograph in Down’s (10 - 20%)
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Cardiovascular Cardiovascular
HTN (higher than 95 percentile) HTN (higher than 95 percentile)
10 – 12 years
10 – 12 years : : 125/80 125/80 13 – 15 years
13 – 15 years : : 135/85 135/85 15 years / older
15 years / older : : 140/90 140/90
Restriction Restriction
1) Diastolic > 115 mm Hg 1) Diastolic > 115 mm Hg 2) End-organ involvement 2) End-organ involvement Controlled HTN
Controlled HTN
1) No End-organ : Moderate intensity activities 1) No End-organ : Moderate intensity activities
2) LVH / 2) LVH / renal function : Low intensity (golf / bowling) renal function : Low intensity (golf / bowling)
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Cardiac Murmurs Cardiac Murmurs
Mitral Prolapsed (No participation) Mitral Prolapsed (No participation)
Syncopy Syncopy
Family history of sudden death Family history of sudden death
Chest pain or arrhythmias
Chest pain or arrhythmias (worse with activities) (worse with activities)
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Hypertrophic Cardiomyopathy Hypertrophic Cardiomyopathy
Most common cause of sudden death in young athletes Most common cause of sudden death in young athletes
Disqualification Disqualification
1)1)
LVH LVH
2)2)
LV outflow obstruction LV outflow obstruction
3)3)
Arrhythmia Arrhythmia
4)4)
Syncopy Syncopy
5)5)
Sudden death in relative Sudden death in relative
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Vision Impairment Vision Impairment
Best corrected vision : 20/50 (one eye) Best corrected vision : 20/50 (one eye) Restricted Sports
Restricted Sports
Boxing, wrestling, full contact karate Boxing, wrestling, full contact karate Protective eyewear use
Protective eyewear use
Football, racquetball, baseball
Football, racquetball, baseball
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Renal / Liver / Spleen Renal / Liver / Spleen
No contact or collision sports No contact or collision sports
1) Renal (abnormal solitary kidney) 1) Renal (abnormal solitary kidney)
2) Hepatomegaly (surpassed bony protection) 2) Hepatomegaly (surpassed bony protection) 3) Splenomegaly
3) Splenomegaly
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Concussions Concussions
Confusion
Confusion Amnesia Amnesia LOC LOC Grade I (Mild)
Grade I (Mild) + + - - - -
Grade II (Moderate) +
Grade II (Moderate) + + + - - Grade III (Severe)
Grade III (Severe) + + + + + +
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Concussions Concussions
First Concussion
First Concussion Second ConcussionSecond Concussion Third ConcussionThird Concussion Grade I (Mild)
Grade I (Mild) Return to playReturn to play (Asymp. for 20
(Asymp. for 20 min.)min.)
Stop contest / practice Stop contest / practice Return to play
Return to play (Asymp. > 1 wk) (Asymp. > 1 wk)
Terminate season Terminate season Return to play Return to play (Asymp. > 3 mos) (Asymp. > 3 mos)
Grade II Grade II (Moderate) (Moderate)
Stop contest / practice Stop contest / practice Return to play
Return to play (Asymp. > 1 wk) (Asymp. > 1 wk)
Terminate season Terminate season Return to play Return to play (Asymp. > 1 mon) (Asymp. > 1 mon)
Terminate season Terminate season Return next season Return next season (Asymp.)
(Asymp.)
Grade III (Severe)
Grade III (Severe) Stop contest / practiceStop contest / practice Return to play 1 mon Return to play 1 mon (Asymp. > 2 wk) (Asymp. > 2 wk)
Terminate season
Terminate season Terminate seasonTerminate season (MRI)
(MRI)
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Neurologic Injury Neurologic Injury
Neuropraxia (Burner) Neuropraxia (Burner)
Asymtomatic
Asymtomatic Participation Participation
Recurrent Further evaluation Recurrent Further evaluation
Seizure Seizure
Controlled
Controlled Participation Participation Poorly controlled
Poorly controlled 1 month after last seizure (on Rx) 1 month after last seizure (on Rx)
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Objectives of Fitness Assessment Objectives of Fitness Assessment
Minimize injury Minimize injury
Improve athletic performance Improve athletic performance
Identify weakness that hinders performance Identify weakness that hinders performance Assess achievement of personal goal
Assess achievement of personal goal Motivational
Motivational
Wellness counseling Wellness counseling
Evaluate preseason conditioning Evaluate preseason conditioning
Sports specific profile (risk factors identification) Sports specific profile (risk factors identification)
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Evaluation Evaluation
Resting heart rate and BP Resting heart rate and BP Body mass index (BMI) Body mass index (BMI) Skin fold measurement Skin fold measurement Abilities
Abilities
– Muscle strengthMuscle strength – Muscle enduranceMuscle endurance – PowerPower
– FlexibilityFlexibility – SpeedSpeed
– Aerobic enduranceAerobic endurance – Anaerobic enduranceAnaerobic endurance – AgilityAgility
– BalanceBalance
– Reaction timeReaction time
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Nutrition Nutrition
Micronutrient (vitamins) Micronutrient (vitamins)
Macronutrients (fat, carbohydrate, protein) Macronutrients (fat, carbohydrate, protein) Diet Diet
– Carbohydrate Carbohydrate
(4 calories / gm) (4 calories / gm): 60 - 70% (starch) : 60 - 70% (starch)
– Fat Fat
(9 calories / gm)(9 calories / gm): : 15 - 20% 15 - 20%
– Protein Protein
(4 calories / gm)(4 calories / gm): : 10 - 15% 10 - 15%
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Carbohydrate Loading Carbohydrate Loading
Glycogen storage for endurance activity Glycogen storage for endurance activity
–
100 gm of carbohydrate within 15 - 30 minutes after exercises 100 gm of carbohydrate within 15 - 30 minutes after exercises
–
Additional 100 gm of carbohydrate every 2 to 4 hours Additional 100 gm of carbohydrate every 2 to 4 hours
(Need 20 hours to replace depleted store) (Need 20 hours to replace depleted store)
Complex carbohydrate Complex carbohydrate
–
More glycogen storage More glycogen storage
–
Less insulin response Less insulin response
–