STRENGTH

T HU R S DAY 5 T H MAY9 AM – 11 A M

TODAY’S LESSON

Aim:To know and understand strength

ObjectivesTo list and describe the different types of strengthTo discuss and complete ways to test and train for strengthTo explain the factors that affect strength and training

What are the different types of strength?

• M---m-l St-e---hMaximal strength: maximum force produced in a single

muscular contraction

• E --lo---e StrengthExplosive strength: or power, a combination of speed

and strength

• Strength E--------Strength Endurance: the ability to sustain a number of

muscular contractions over a period of time

Two more dimensions

There are a further two dimensions to categorise strength

• Static strength

• Dynamic strength

What might these two types of strength describe?

Static … force exerted against a resistance but no movement

Dynamic … force exerted causing change in body position

Can you think of an example of each??

Examples of strength• Static

… handstand

• Dynamic

… backflip

Get scribbling on your whiteboard

Question: What factors might affect strength?

Your genetic muscle fibre type dictates your strengthpotential and the percentage you have within your muscles.

Why? Discuss

Also the cross-sectional area of the muscle determines itsstrength output.

What is it called when the x-sectional area increases in size?

Factors affecting strength

What else makes us strong?

Age optimum age for strength is in our …… twenties

Gender there is no difference in pure muscle tissue between females and males

So why are males stronger?higher testosterone levels

Energy systems

The predominant energy system being used will depend on the type of strength being utilised

TASK (5 minutes)

• Can you think of examples from sport?• Discuss this point together

Energy systemsType of strength Energy system used Fuel used

Maximum Strength

Elastic Strength

Strength Endurance

Match the AdaptationsEnergy stores and enzyme activity

become thicker and stronger.

Muscle fibres increase; glycogen, ATP and PC stores that supplies all power and speed activites

Hypertrophy Increased tolerance to lactic acid means athlete can work harder for longer

Enhanced buffering and delayed OBLA

myofibrils become thicker due to increased protein synthesis in type 2 fibres

Bones, ligaments and tendons may split (hyperplasia) and form new cells, however studies are inconclusive.

Resistance training increases total number of motor units recruited and improved synchronisation.

Neural Adaptations

Get your whiteboards ready

Question: What have you remembered from today!

The body’s ability to apply a force

What is the above sentence describing?

… the maximum force that can be developed in a muscle or group of muscles during a single maximal contraction

Maximum strength

• Which example would you choose for maximum strength?

A B C

A B C

Right answer is …

BThe judo throw requires overcome of a very

large force

Elastic strength

• Which example would you choose for elastic strength?

A B C

A B C

Right answer is …

AThe gymnast needs explosive strength in a

sequence

Strength endurance

• Which example would you choose for strength endurance?

A B C

A B C

Right answer is …

A Rowing requires repeated contractions

without fatigue

TaskYou are now going to research one type of strength

• How to test for it• How to train for it

Gary – maximal strengthCharlotte – explosive strengthChris – strength endurance

Testing and Training for different types of strength

Testing and Training for different types of strength

Strength Test Training

Maximal strength.

Elastic/explosive strength

Strength endurance

PLENARY – MUSICAL MASTERMIND

The winner is the contestant with the most points

You will get 2 minutes on strength questions

Everyone else will take it in turns to ask you questions

If you answer incorrectly the answer is read out losing you valuable time

You may pass three times

MUSICAL MASTERMIND

Name Points