NEUROMUSCULAR CO-ORDINATION

BY:Suman ShaikhDPT 3rd yearCOP, JPMC

NEUROMUSCULAR CO-ORDINATION

Co-ordination Is being able to do multi task. like rub

your tummy, pat your head, and jump at the same time

Coordination is when two or more separate entities work together. On example is hand-eye coordination, which effects how well you can catch and throw a ball

NEUROMUSCULAR C0-ORDINATION• It is the coordination between

the nerves and the muscles.

Under the control of the brain, they work together to allow the body to move

 NEUROMUSCULAR COORDINATION WORKS ON TWO LEVELS

1) Intra-Muscular Coordination 2) Inter-Muscular Coordination

IS THE ACTIVATION OF INDIVIDUAL NEURO-MUSCULAR UNITS WITHIN A MUSCLE FIBRE. THE ACTIVATION OF INDIVIDUAL MUSCLE FIBRES IS DEPENDENT ON :* RATE CODING (“FIRING RATE” OF ACTION POTENTIALS),*RECRUITMENT OF NEURO-MUSCULAR MOTOR UNITS, AND* SYNCHRONIZATION OF MOTOR UNITS

INTRA-MUSCULAR CO-ORDINATION :

Inter-muscular Coordination RELATES TO THE INTERACTION BETWEEN MUSCLE GROUPS (AGONISTS, ANTAGONISTS, STABILIZERS, FIXATOR AND NEUTRALIZERS) WHILE PERFORMING A SPECIFIC TASK OR ACTIVITY

THE GREATER THE LEVEL OF CO-ORDINATION BETWEEN DIFFERENT MUSCLE GROUPS THE BETTER.

EXAMPLE : BICEPS CURL

Provide main force BICEPS (agonist)

Need co ordination by TRICEPS (antagonist)

Need co ordination of TRAPEZIUS and RHOMBOIDS (fixators)

Need co-ordination of PRONATOR TERES (synergists)

FACTORS ON WHICH NEUROMUSCULAR CO-ORDINATION DEPENDS :

Rate Coding Relates to control of firing rate of

neuromuscular unit.

Firing rate means the average no. of action potential

RECRUITMENT OF NEUROMUSCULAR MOTOR UNITBy working against resistance, muscles can recruit (involve) more motor units to overcome resistance.

Greater the no. of motor units

Greater will be the force of contraction

THIS CAN BE ACHIEVED BY :

1. Plyometric training 2. Maximum load training

PLYOMETRICS : (jump training) Exercises in which muscles exert

maximum force in short intervals of time.

Its goal is to increase muscle power (speed & strength)

SYNCHRONIZATION OF MOTOR UNITS Synchronization means co-ordination of events

to operate a system, and maintain each event on time.

It is the simultaneous discharge of action potentials in pairs of motor units with similar recruitment thresholds

Increased synchronization of motor units enhances the ability to recruit muscle fibers at the exact time required leading to improvements in both efficiency and the force generated

INCREASE IN :

Rate coding

Recruitment of motor units

Synchronization of motor units

All depends on strength training exercises