Blog By Dr John Cronin

Overload your running…What determines changes in neural and metabolic loading/effort?

Usually a change in mechanical loading.

Let’s take the findings of Matt Brown from PSG Football Club in a previous post where he found an increase in electrical/neural activity of the muscle (EMG) during high speed running, by simply moving the same light weight further away from his knee on a calf sleeve (see picture).

pic of limbs with loads placements
 
Matt increased the mechanical overload by increasing rotational inertia (I) of the limb by simply moving the mass (m) further away from the axis of rotation (r) – I =mr2.

Pic of limb increased the mechanical overload by increasing rotational inertia of the limb

 

The result of increased mechanical loading is an increase in neural (in this example) and metabolic load.
 
Repeated use of this type of mechanical loading whilst running, will result in neuromuscular (e.g. strength) and metabolic/cardiovascular benefits. 
 
Understanding mechanics as a driver of other forms of adaptation is important.

More to come.

 

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Dr john Cronin
Professor | Strength & Conditioning | Educator | Researcher | Trainer | Consultant | Speaker | Mentor
What’s your view to overload your running? Do you think just putting on loads can make you faster? What about longitudinal training adaptations? Is it better for acceleration or max velocity adaptation? Follow Dr. John Cronin on his instagram

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**Make sure to sign up and join the upcoming webinar TECH IN TEAM SPORT with Matt Brown and Dr John Cronin on the 6th of July.**