Post by John A. Casler on Oct 20, 2007 22:42:05 GMT -8
Concentric = Volitional Shortening of a Muscle
Eccentric = Forced or Volitional Lengthening of a muscle
Much has been written, studied, researched and theorized about the Eccentric Muscle Action.
I may be putting material together for a book or course at some point and it will have chapters on the three muscle actions; Concentric, Eccentric, and Static.
To that end, I have a list of "things to know" about Eccentric Actions.
1) It is the Forced or Allowed Lengthening of the muscle
2) It DOES NOT create tension in the muscle from "sliding filament action
3) It DOES create tension via a Biomechanical "braking" mechanism
4) It is generally thought to be 140% - 200% higher in tensioning ability to the "Concentric Action"
5) It is the "only" muscle action that causes "micro-damage" to the the Actin/Myosin Tissues
6) Is typically "underloaded" in when standard training methods are employed.
7) Speed during Eccentrics will depend on the "force/load goal of the rep"
to be continued
Eccentric = Forced or Volitional Lengthening of a muscle
Much has been written, studied, researched and theorized about the Eccentric Muscle Action.
I may be putting material together for a book or course at some point and it will have chapters on the three muscle actions; Concentric, Eccentric, and Static.
To that end, I have a list of "things to know" about Eccentric Actions.
1) It is the Forced or Allowed Lengthening of the muscle
2) It DOES NOT create tension in the muscle from "sliding filament action
3) It DOES create tension via a Biomechanical "braking" mechanism
4) It is generally thought to be 140% - 200% higher in tensioning ability to the "Concentric Action"
5) It is the "only" muscle action that causes "micro-damage" to the the Actin/Myosin Tissues
6) Is typically "underloaded" in when standard training methods are employed.
7) Speed during Eccentrics will depend on the "force/load goal of the rep"
to be continued
