Neuromuscular Co-ordination

Introduction to neuromuscular co-ordination

1. NEUROMUSCULAR CO-ORDINATION BY: Suman Shaikh DPT 3 rd 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 : Plyometric training 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