WEARABLE RESISTANCE TRAINING
The Future is Light
John Cronin AUT University, Auckland NZ
The Future is Light John Cronin AUT University, Auckland NZ - - PowerPoint PPT Presentation
WEARABLE RESISTANCE TRAINING The Future is Light John Cronin AUT University, Auckland NZ Wearable Resistance (W (WR) Novel - No! Wearable Resistance Novel - No! Wearable Resistance Novel - No! Wearable Resistance Novel Technology
John Cronin AUT University, Auckland NZ
Theory Content Practical Content
Getting to know the technology Six load orientations
Reinforce concepts of loading: ABCs
specificity Qualitative movement analysis Skill acquisition and coaching
How endurance athletes are using it
Injury resistance and movement variability WR and injury rehabilitation Prehab - movement variability and warm-up Specific exercises for injury resistance Case study and Exogen injury myth
Smart training sessions adding WR to current training
Jumping, running and sprinting research The principles of training (5) Acute and chronic training variables Specific skill and sport development Program example
Personalised Exogen profile - team setting.
Theory Content Practical Content
Getting to know the technology Six load orientations
Reinforce concepts of loading: ABCs
specificity Qualitative movement analysis Skill acquisition and coaching
How endurance athletes are using it
Injury resistance and movement variability WR and injury rehabilitation – RTP/RTA Prehab - movement variability and warm-up Specific exercises for injury resistance Case study and Exogen injury myth
Smart training sessions adding WR to current training
Jumping, running and sprinting research The principles of training (5) Acute and chronic training variables Specific skill and sport development Program example
Personalised Exogen profile - team setting.
Theory Content Practical Content
Getting to know the technology Six load orientations
Reinforce concepts of loading: ABCs
specificity Qualitative movement analysis Skill acquisition and coaching
How endurance athletes are using it
Injury resistance and movement variability WR and injury rehabilitation Prehab - movement variability and warm-up Specific exercises for injury resistance Case study and Exogen injury myth
Smart training sessions adding WR to current training
Jumping, running and sprinting research The principles of training (5) Acute and chronic training variables Specific skill and sport development Program example
Personalised Exogen profile - team setting.
Weight = ~950 N Weight = ~1200 N How much force is needed to get them airborne? 95 kg 120 kg
↑ Inertia by adding mass = ↑muscular work or force Overload Principle 1: Adding mass
2 n n 2 1
1
2 2 2 2 1 1 i 2 n 1 i i
I + + + + = =
=
m1 m2 m3 m4 m5 y x x y 0.1 m 0.1 m 0.1 m 0.1 m 0.1 m 0.1 m
Overload Principle 2: Placement A B
m1 m2 m3 m4 m5 y x x y
0.1m 0.1m 0.1m 0.1m 0.1m Horizontal axis through center of mass vertical axis through center of mass 0.1m
2 n n 2 1
1
2 2 2 2 1 1 i 2 n 1 i i
I + + + + = =
=
Iy-y = (2.0kg)(0.1m)2 + (2.0kg)(0.2m)2 + (1.5kg)(0.3m)2 + (1.5kg)(0.4m)2 + (1.0kg)(0.5m)2
= 0.725kgm2
Load (gm/oz) Rotational Inertia % Increase 200/7 0.743 2.42 400/14 0.761 4.73 600/21 0.779 6.93 800/28 0.797 9.03 1000/35 0.815 11.04 m1 m2 m3 m4 m5
0.1m 0.1m 0.1m 0.1m 0.1m 0.1m
Load (kg/oz) Rotational Inertia % Increase 200/7 0.775 6.45 400/14 0.825 12.1 600/21 0.875 17.1 800/28 0.925 21.6 1000/35 0.975 25.6 m1 m2 m3 m4 m5 y
0.1m 0.1m 0.1m 0.1m 0.1m 0.1m
BELLY INSERTION
A B
Overload Principle 3: Orientation
Overload Principle 3: Orientation
A B
Overload Principle 3: Orientation
A B
(Squat data with well trained lifters Zink et al, 2006, JSCR) KE = ½m.v2 = ½ 100 X 0.582 = 50 x 0.34 = 17.4 kg.m.s KE = ½m.v2 = ½ 1.0 X 6.12 = 0.50 x 37.2 = 18.6 kg.m.s
Work-Energy Relationship
Trained Untrained Joint Action Range Time Velocity (deg/s) Range Time Velocity (deg/s) Ankle Ext. 73 0.045 1622 56 0.075 746 Knee Ext. 32 0.045 711 6 0.075 80 Hip Ext 59 0.06 983 32 0.075 426
(Squat data with well trained lifters Zink et al, 2006, JSCR) KE = ½m.v2 = ½ 100 X 0.582 = 50 x 0.34 = 17.4 kg.m.s KE = ½m.v2 = ½ 1.0 X 6.12 = 0.50 x 37.2 = 18.6 kg.m.s
Work-Energy Relationship
Overload Principle 4: Velocity of movement
Torque = turning forces
Vest = Vertical Loading Limb = Rotational Loading
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john.cronin@aut.ac.nz
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