workload monitoring fast bowl notes

8/3/2019 Workload Monitoring Fast Bowl NOTES

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MONITORING WORKLOAD IN

FAST BOWLERS

By CJ Clark

Team Physiotherapist

Wet Indies Cricket Team


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WHY MEASURE WORKOAD?

It measures the ACTUAL impact of training andmatch performance on each individual

Only with ACCURATE & RELIABLE measurement

can you hope to make GOOD analysis andchange, like COACHING biomechanics

Only with a thorough knowledge of what the

athlete is FEELING, as well as a detailedunderstanding of what he is DOING can you makeappropriate adjustments


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WHY MEASURE WORKOAD?

The RULE OF INDIVIDUAL VARIATION

NO individual will responded identically to a

given training program / load / exercise

Depends on individual genetic profile, health,

age, injury status, experience etc

MAIN AIM Is to gain an understanding of

athletes tolerance to training


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Fast Bowling & Injuries

BowlingWorkload

Physical

PreparationTechnique

THE INJURY TRIAD


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FAST BOWLING & INJURIES

INJURIES generally occur EARLY SEASON or LATE SEASON

EARLY SEASON

Too much workload too quickly (COACH)

Poor Preseason Preparation (S&C)

Poor/Insufficient Rehab from Past Injury (PHYSIO)

LATE SEASON

Fatigue, Over Training, Loss of Condition

Poor Recovery Practices


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COMMON INJURIES

MUSCLE STRAINSHamstring, Gluteal, Groin, Abdominal / Side, Back

LOWER LIMB JOINT PROBLEMS

Ankle Sprains, Posterior Ankle Impingement

Patellar femoral Tendinopathy, Knee Cartilage/Lgts

INTERVERTEBRAL DISC & LUMBAR Jt PROBLEMS

Reduced height, degeneration, bulging, herniation

PARS INTERARTICULARIS STRESS FRACTURES


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STRESS / RECOVERY CYCLE

BASIS OF ALL TRAINING - ADAPTATION

Push to limit then allow recovery time


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Stress / Recovery Cycle


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STRESS / RECOVERY CYCLE

Concept of Tissue Tolerance

Critical Workload limit (MAXIMAL)

Concept of Repetitive Microtrauma One stress may not damage tissue

Cumulative low load stress lowers threshold

Injuries MORE LIKELY (MAX level drops)

PROBLEMS ARISE WHEN RECOVERY PERIOD IS

INADEQUATE OR TOO EXCESSIVE !


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Risk of Injury Vs WorkloadR. Dennis, P Farhart


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Number of Deliveries Per Week


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Weekly load & Injury Risk


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HOW TO MONITOR WORKLOAD

Several approaches possible, range from

SIMPLE to COMPLEX

Time and commitment from Coaching Staff /Sports Med Staff / Player

Simplest:

HOW DO YOU FEEL ?

HOW MANY BALLS DID YOU BOWL ?


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IS THIS ENOUGH ?

MUST BE OBJECTIVE

Reliability & Validity


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Rating of Perceived Exertion Scale

RATING Descriptor Translation

0 Rest Rest

1 Very, Very Easy Really Easy

2 Easy Easy

3 Moderate Moderate

4 Somewhat hard Sort of Hard

5 Hard Hard

6 - HARD

7 Very Hard VERY HARD

8 - Coach tried to kill me

9 - I feel like death

10 Maximal Oh shit!


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SESSION RPE

RPE can be used to rate any physical session

Cricket Fielding Session - CRICKET LOAD

Gym Weights Session - RESISTANCE LOAD

Run / Bike / Swim - CARDIO LOAD

Can use to provide measure when there ismultiple sessions in a day OR multiple types ofsession (eg net bowling, followed by gym)

Can use the sessional RPE to determine TRAININGLOAD (Discussed later)


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1. PRIOR TO EVERY SESSION

Ask player how they feel

Any INJURY or DISCOMFORT? Where ?

Scored out of 10 (0 = No Pain, 10 = Worst Pain Imaginable)

2. COUNT ALL DELIVERIES BOWLED FOR DAY

Coach / Observer counts & recordsRecord as NET or MATCH Workload


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Match Workload: found using score sheet

Eg 10.4 overs, 6 nb, 3 wides = 73 balls

NET Load: Can count (best) OR Use an estimate

1 min in NET = 4 balls bowled (>2 bowlers)

3 bowlers in net for 20 min= (20 x 4) / 3 = 80 / 3 = 27 balls each bowler

4 bowlers in net for 20 min= (20 x 4) / 4 = 80 / 4 = 20 balls each bowler


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3. RECORD DELIVERIES IN WORKSHEET

Record Number of balls AND Duration

4. RECORD PLAYERS SESSIONAL RPEBest done 30 mins AFTER session finished

Good to have a printed RPE scale handy

5. COMPLETE DAILY FOR A WEEK

Calculate weekly load

Record weekly load & graph


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Weekly Recording

Date Symptoms Pain Score Balls

Bowled

Duration

(min)

SESSIONS

Mch Net Mch Net Mch Net

April 1 - 0/10 - 34 - 25 - 1

April 2 REST DAY - - - - - -April 3 Stiff back 2/10 - 28 - 20 - 1

April 4 Stiff Back 4/10 6 - 10 - 0.5

April 5 Stiff back 1/10 30 - 20 - 1

April 6 REST DAY 0/10 - - - - - -

April 7 16 overs 0/10 96 - 16x4

=64

- 1 -

TOTAL 96 98 64 75 1 3.5

194 139 4.5


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Season Recording

Month Delivery NET

LOAD

MATCH

LOAD

Time

(min)

SESSIONS

NET Mtc

Tot

Week 1 194 98 96 139 3.5 1 4.5

Week 2 180 74 106 130 2 2 4

Week 3 207 120 87 150 3 1 4

Week 4 240 107 133 165 2 3 5

Week 5 160 80 80 105 2 1 3

Week 6 Inj 45 0 24 2 0 2

Week 7 Inj 80 0 35 3 0 3

Week 8 REST 0 0 0 0 0 0

Week 9 134 134 0 96 3 0 3

Week 10 183 76 107 120 2 2 4

TOTAL 1298 814 484 22.5 10 32.5


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Monitoring Workload


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Match Delivery Workload & Injury


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OPTIONS TO INCREASE DETAIL

SUBJECTIVERecovery Questionnaires

Multi-Component Training Distress Qnaire

OBJECTIVE

Load / Monotony / Strain Calculation (session RPE)

Heart Rate Monitoring (TE, EPOC)

Hormonal Assay Test (Saliva Test)Weekly Musculoskeletal Screening / Function

Testing


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WHAT THE OPPOSITION DOES ?

MATCHHARDNESS

WORKLOADMONITORING

PHYSICALMONITORING

Opposition OBJECTIVE OBJECTIVE

Country Number of Deliveries Knee to Wall Test

Match Format Heart Rate (TE/EPOC) Internal Rotation Test

Climate Training Duration Jump Testing

Hours of Travel Reactivity Test

Recovery b/w match SUBJECTIVE Illness / Injury

Training Duration Session RPE

Training Intensity SUBJECTIVE

Training Modality Energy Levels

Team Selection Muscle Soreness

(Passive & Active)


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TRAINING LOAD

Session RPE score can be multiplied by duration

to find the session LOAD

Load = Session RPE X Duration in minEg RPE 5/10, 24 min net duration

Session Load is 5 x 24 = 120 Units

Can add to the weekly bowling record to get

further information


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DAY SESSION Duration

(min)

SESSION

RPE

LOAD

SUN Net Session 30 6 180

MON Rest 0 0 0

TUE Net Session 40 8 320

WED Net Session 40 5 200

THU Rest 0 0 0

FRI MATCH 80 9 720

SAT Rest 0 0 0

TOTAL 1420

(total / 7) DAILY MEAN LOAD 203

(standard deviation) DAILY SD OF LOAD 260

(daily mean/S.Dev) MONOTONY 0.78

(daily mean load x 7) WEEKLY LOAD 1421

(weekly load x monotony) STRAIN 1109.5


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PHYSICAL MONITORING

LUNGE TEST (BOWLERS) Keep heel on ground, try to

touch wall to knee

Less than 14cm on

NON BOWLING SIDE has

great risk of Injury

USE OF WEEKLY PHYSICAL MEASURES TO ASSESSEFFECT OF TRAINING ON PHYSICAL STRUCTURE


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RECOVERY QUESTIONAIRE


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AFL FOOTBALL APPROACH


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APPLICATIONS

Coaches may reduce workload for continuouslyinjured players, with certainty.

May also consider higher workloads when there is a

low previous injury rateConsider recent training history to guide progress of

player and to suggest need for furtherconditioning / training

Allows for appropriate PLANNING for futurecompetition and preparation periods

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