CHILDREN IN SPORTS. OBJECTIVES GROWTH AND MATURATION PHYSIOLOGICAL DIFFERENCES NUTRITIONAL CONSIDERATIONS PSYCHOLOGICAL CONSIDERATIONS THE IMMATURE MUSCULOSKELETAL.

CHILDREN IN SPORTS

OBJECTIVES

GROWTH AND MATURATIONPHYSIOLOGICAL DIFFERENCESNUTRITIONAL CONSIDERATIONSPSYCHOLOGICAL CONSIDERATIONSTHE IMMATURE MUSCULOSKELETAL SYSTEM

OBJECTIVES

ACUTE SPORTING INJURIES OVERUSE INJURIES CHRONIC CHILDHOOD ILLNESS ACUTE ILLNESS AND SPORTS PARTICIPATION PRE-PARTICIPATION HEALTH EVALUATION INJURY PREVENTION

GROWTH AND MATURATION

1) VARIABILITY IN THE PHYSICAL GROWTH OF 6 YEARS2) PEAK HEIGHT VELOCITY ( PHV )3) 12 YEAR OLD: SIGNIFICANT DIFFERENT HEIGHT,

MUSCULAR STRENGTH, CARDIOVASCULAR FITNESS LEVELS

4) NO REASON TO SEGREGATE SEXES UP TO 14 YEARS OLD

PHYSIOLOGICAL DIFFERENCES

1) AEROBIC POWER:- MAX.AEROBIC POWER THE SAME WITH ADULTS ( ENDURANCE )- METABOLIC COST OF WALKING AND RUNNING

HIGHER ( TRAINING )

PHYSIOLOGICAL DIFFERENCES

2) ANAEROBIC POWER:- SIGNIFICANTLY LOWER IN CHILDREN( SHORT TERM POWER OUTPUT )- IMPROVES WITH GROWTH- IN GIRLS LITTLE CHANGE AFTER 12 YEARS OLD- CHILDREN: LESS USE OF GLYCOGEN, LESS ABLE TO

REDUCE PH

PHYSIOLOGICAL DIFFERENCES

3) CARDIOVASCULAR SYSTEM:- CHILDREN: HIGHER MAXIMAL HEART RATE- LOWER STROKE VOLUME- LOWER SYSTOLIC BLOOD PRESSURE- BETTER PERIFERAL BLOOD FLOW ADJUSTMENT TO

SPORT

PHYSIOLOGICAL DIFFERENCES

4) RESPIRATORY SYSTEM IN CHILDREN:- SHALLOW BREATHING PATTERN RESULTING IN

LOWER ABSORPTION OF OXYGEN FROM INSPIRATION

- HIGHER RESPIRATORY FREQUENCY RESULTING IN GREATER OXYGEN COST IN RESPIRATION

PHYSIOLOGICAL DIFFERENCES

5) EXERCISE IN HOT AND COLD ENVIRONMENTS:

CHILDREN ARE MORE VUNERABLE: RATIO OF SURFACE AREA TO VOLUME 30-40% HIGHER THAN ADULTS RESULTING IN FASTER INCREASE OR LOSS OF BODY HEAT FOR CHILDREN. SWEATING MECHANISM IS FULLY OPERATIVE AFTER ADOLESCENT GROWTH SPURT - DEHYDRATION

NUTRITIONAL CONSIDERATIONS1) ADOLESCENT GROWTH SPURT ( Because of the

massive physical changes happening in puberty, teenagers have bigger nutrition needs compared both to adults and young people who’ve finished their growth spurts.)

2) IRREGULAR EATING HABITS ( Snacks, Missing Lunch, etc )

3) ESSENTIAL: CALCIUM, FOLIC ACID, ZINC, IRON, VITAMINS A,B6,C

4) DIETARY MANIPULATION (Eating Disorders)

PSYCHOLOGICAL CONSIDERATIONS

1) CHILDHOOD PLAY IS IMPORTANT FOR SPORT. ( FIRST 7 YEARS OF LIFE ESPECIALLY) IT ENHANCES:

- BALANCE AND CO-ORDINATION

- PROPREOCEPTION ( POSITION SENSE )

- PRAXIS ( SPATIAL AWARENESS )

PSYCHOLOGICAL CONSIDERATIONS

2) REWARDS OF PHYSICAL ACTIVITY - SELF ESTEEM AND ADMIRATION

3) SPORTS VERSUS PLAY ( AFTER 6 YEARS OLD ) GROUP GAMES, RULES OF GAMES, “GOAL” GAMES = PREPARATION AND FEELINGS FOR GAME SPORTS

PSYCHOLOGICAL CONSIDERATIONS

4) PSYCHOLOGICAL COSTS OF SPORTS:

- EFFORT OVER OUTCOME; praising effort over outcome is best for children.

- MODELLING EFFECT; also called observational learning or imitation. Involves the use of live or symbolic models to demonstrate a particular behaviour, thought, or attitude.

THE IMMATURE MUSCULOSKELETAL SYSTEM

1) PRESENCE OF GROWTH CARTILAGE IN SKELETON; cartilage at ends of long bones consists of the epiphyseal, physeal, and articular cartilage components.

A) ARTICULAR SURFACES (joint surfaces some of which are cushioned by malleable cartilage)

B) EPIPHYSEAL PLATES, APOPHYSEAL INSERTIONS; are susceptible to injury during adolescent growth spurts due to muscle tightening across joints.

THE IMMATURE MUSCULOSKELETAL SYSTEM

2) EFFECTS OF EXERCISE: - INTENSIVE PROGRAMMES LEAD TO BONY DEFORMATION - HEAVY PHYSICAL TRAINING LEADS TO LONGER PREPUBERTAL STATE IN GIRLS - SPECIAL INTENSIVE TRAINING LEADS TO STRENGTH IMBALANCE: SHOULDER

THE IMMATURE MUSCULOSKELETAL SYSTEM

3) FACTORS ASSOCIATED WITH INCIDENCE OF SPORT INJURIES;

- 3 INJURIES PER 100 CHILDREN PER YEAR - 0.69 SERIOUS INJURIES PER YEAR PEAK FOR

BOYS: 14 YEARS OLD AND GIRLS: 15 YEARS OLD

THE IMMATURE MUSCULOSKELETAL SYSTEM

- INCOMPLETE RECOVERY FROM INJURY: 30% - FOUL OR ILLEGAL PLAY: 13%- OVERUSE INJURIES: 50%

STATISTICALLY, ORGANISED COMPETITION ACCOUNTS FOR 35% OF TOTAL SPORTING INJURIES . OF THAT FIGURE:- RUGBY LEAGUE 32%,SOCCER, RUGBY UNION 11% ( MARTIAL ARTS, HORSE RIDING AT 2% WAS RATED THE SAFEST), 30% REQUIRED MEDICAL ATTENTION, 11% REQUIRED HOSPITALIZATION, 12% RESULTED IN LONG TERM DYSFUNCTION.

ACUTE SPORTING INJURIES

1) HEAD AND NECK : VERY RARE BELOW 11 YRS. 1-5% OF ALL SPORT INJURIES SERIOUS Central Nervous System DAMAGE

2) DIAPHYSEAL FRACTURES3) GROWTH PLATE INJURY: SALTER-HARRIS

CLASSIFICATION4) AVULSION FRACTURE OF ACL (knee ligament)5) AVULSION FRACTURE MUSCLE GROUPS6) Slipped Upper Femoral Epiphysis: 30% SUDDENLY,

70% GRADUAL

OVERUSE INJURIES

1) OSTEOCHONDROSIS; a condition where a fragment of bone and cartilage detaches from the joint surface.

2) STRESS FRACTURES: Can be caused by sudden increases in training intensity. Confirmed via x-rays or bone scans.

3) MALALIGNMENT SYNDROMES: TARSAL COALITIONS - Tarsal coalition is a congenital

abnormality that results in a partial or complete fusion between two bones of the foot.

PERONEAL TENDONITIS - lnflammation or crowding of the peroneal tendons. Usual cause is repetitive trauma. Direct trauma (i.e., ankle fracture) or chronic lateral ankle instability.

OVERUSE INJURIES

1) OSTEOCHONDROSES:“ SELF-LIMITED,IDIOPATHIC, DEVELOPEMENTAL

DISORDERS OF PRIMARY OR SECONDARY OSSIFICATION CENTRES”

- OSGOOD-SCHLATTERS, SINDING-LARSEN-JOHANSSON, SEVERS

OVERUSE INJURIES

1) OSTEOCHONDROSIS:

- ARTICULAR SUBCHONDRAL ( bone / cartilage)- PERTHES DISEASE ( femur)- KIENBOCKS DISEASE ( wrist )- KOHLERS DISEASE ( mid-foot )- FREIBERGS DISEASE ( 2ND Toe)

OVERUSE INJURIES

- ARTICULAR CHONDRAL (splitting of the bone)- OSTEOCHONDRITIS DISSECANS ( femur, capitelum,

talar)- PHYSEAL: SCHEURMANNS (thoracic spine)- BLOUNTS ( tibia )

CHRONIC CHILDHOOD ILLNESS

1) ASTHMA: EXERCISE INDUCED BRONCHSPASM ( EIB) EXERCISE INDUCED ASTHMA ( EIA )

2) DIABETES: INCREASED FATIGUE, ABNORMAL THIRST, FREQ.URINARY,WEIGHT LOSS

3) EPILEPSY ( PETIT MAL, TEMPORAL LOBE, GRAND MAL )

CHRONIC CHILDHOOD ILLNESS

4) CYSTIC FIBROSIS ( GENERAL EXOCRCINE GLAND DYSFUNCTION )

CHRONIC RECURRENT SINUS AND RESPIRATORY TRACT INFECTIONS

DIGESTIVE TRACT DISORDERS AND MALNUTRITION

* SWIMMING OF PARTICULAR BENEFIT IN BRONCHOSPASM HYGIENE

CHRONIC CHILDHOOD ILLNESS

5) HYPERTENSION:(?) CAUSES, PRIMARY OR SECONDARY

SPORT IS CONSIDERED TO BE BENEFICIAL FOR PRIMARY HYPERTENSION BUT AVOID PRIMARY ISOMETRIC ACTIVITIES SUCH AS WEIGHT LIFTING, WRESTLING, ICE-SKATING

CHRONIC CHILDHOOD ILLNESS

6) HEART DISEASE: - CONGENITAL HEART DISEASE IN 5/1000 SCHOOL AGED

CHILDREN. - RHEUMATIC HEART DISEASE IN 1/1000. - VALVULAR DAMAGE, CARDIOMYOPATHY, MYOPATHY,

HEREDITARY SYNDROME IN 0.8/1000 - RHYTHM SIGNIFICANT DISORDER IN 0.7/1000 - CONGENITAL CORONARY ANOMALIES IN 2/100,000 CHILDREN

CHRONIC CHILDHOOD ILLNESS

6) HEART DISEASE CARDIAC CONDITIONS ASSOCIATED COMMONLY

WITH SUDDEN DEATH IN SPORT ACTIVITIES: AORTIC STENOSIS, TETRALOGY OF FALLOT, HYPERTROPHIC CARDIOMYOPATHY, PULMONARY HYPERTENSION, MYOCARDITIS

CHRONIC CHILDHOOD ILLNESS

CARDIAC CONDITIONS ASSOCIATED WITH SUDDEN DEATH IN YOUNG ATHLETES: HYPERTROPHIC CARDIOMYOPATHY ABERRANT LEFT CORONARY ARTERY AORTIC DISSECTION ( MARFANS SYNDROME ) CORONARY ARTERY DISEASE

ACUTE ILLNESS AND SPORT PARTICIPATION

1) INFECTIONS MONONUCLEOSIS ( GLANDULAR FEVER )

- SELF-LIMITED ACUTE VIRAL ILLNESS- 90% INFECTED BY 30 YEARS OLD- PEAK INFECTION RATE IS 15-25 YEARS OLD- EPSTEIN-BARR VIRUS (EBV)- DIAGNOSIS FROM POSITIVE HETEROPHILE

ANTIBODY TEST (MONOSPOT)- ENLARGED SPLEEN 40-60%, RUPTURE 0.1 –0.2%- 4 WEEKS ABSENCE, SYMPTOMS CAN LAST UP TO 6

MONTHS

ACUTE ILLNESS AND SPORT PARTICIPATION

2) OTHER ACUTE ILLNESSES: -HAEM.STREPTOCOCCUS (Scarlet Fever, Tonselitis)

-MYCOPLASMA PNEUMONIA (Bacterial Pneumonia)

-SIMPLE HERPES (not dangerous but it may be exasperated by picking or scratching)

-TINEA PEDIS (Fungal infection of the toes and feet)

PRE-PARTICIPATION HEALTH EVALUATION

* HISTORY TAKING, PHYSICAL EXAMINATION, INVESTIGATIONS, ANTHROPOMETRIC MEASUREMENT

CONDITIONS REQUIRING FURTHER EVALUATION AND POSSIBLE DISQUALIFICATION FROM SPORT:

1) UNRESOLVED ORGANIC HEART DISEASE2) SUSTAINED HYPERTENSION WITH EXERCISE

PRE-PARTICIPATION HEALTH EVALUATION

3) LOSS OF CONCIOUSNESS WITH EXERCISE4) SERIOUS CNS TRAUMA OR SURGERY5) HISTORY OF RECURRENT CNS SYMPTOMS ( SEIZURE ETC )6) PERSISTENT HEAT INTOLERANCE7) INTRACTABLE ORTHOPAEDIC PROBLEMS

PRE-PARTICIPATION HEALTH EVALUATION

8) SINGLE ORGAN9) HAEMORRHAGIC DISSORDERS10) CHRONIC INFECTIONS11) CHRONIC DEBILITATING ILLNESS12) ENLARGED ABDOMINAL VISCERA13) OBVIOUS PHYSICAL IMMATURITY

INJURY PREVENTION

1) FACTORS CONTRIBUTING TO SPORT INJURIES- LACK OF COACHING EDUCATION- INADEQUATE PRE-PARTICIPATION PHYSICAL

EXAMS- HAZARDOUS PLAYING FIELDS- CONDITIONING AND TRAINING ERRORS- EQUIPMENT; LACK, IMPROPER, POORLY FITTED- PLAYING WHILE INJURED OR OVERTIRED- GROUPING TEAMS BY AGE NOT SIZE- POOR NUTRITION- RULES AND OFFICIALS

INJURY PREVENTION

- IMPROPER TECHNIQUE- INADEQUATE SUPERVISION- PSYCHOLOGICAL STRESS- WEATHER CONDITIONS

INJURY PREVENTION

PREVENTION STRATEGIES:- GENERAL FITNESS – TRAINING- RANGE OF SPORT ACTIVITIES- TRAINING WELL BEFORE SEASON - ALLOW CHILDREN TO CONTROL INTENSITY OF

ACTIVITIES- MODIFY RULES OF ADULT GAMES- LESS EMPHASIS ON WINNING

INJURY PREVENTION

- OPPONENTS TO BE MATCHED IN AGE, HEIGHT, WEIGHT, MATURITY

- STRICT SUPERVISION- NO MORE THAN A 10% INCREASE PER WEEK IN TRAINING- WARM-UP AND COOL-DOWN TIME- PRE-PARTICIPATION EXAMS.