Introduction to neuromuscular co-ordination

1. NEUROMUSCULAR
CO-ORDINATION
BY:
Suman Shaikh
DPT 3rd year
COP, JPMC

2. 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

3. 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

4. NEUROMUSCULAR COORDINATION
WORKS ON TWO LEVELS
1) Intra-Muscular Coordination
2) Inter-Muscular Coordination

5. 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 :

6. 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.

7. 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)

8. 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

9. RECRUITMENT OF NEUROMUSCULAR MOTOR UNIT
By 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

10. 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)

11. 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

12. INCREASE IN :
Rate
coding
Recruitment of
motor units
Synchronization
of motor units
All depends on strength training
exercises