Neuromuscular coordinatioN ,

slides presented by Ayesha Naseem and Zainab Nasir
DPT FIRST YEAR., COLLEGE OF PHYSIOTHERAPY , JPMC
BATCH 2018

1. Neuromuscular Coordination Represented by: Zainab nasir AYESHA NASEEM 1 st year dpt Cop, jpmc

2. DEFINITION : Neuromuscular Coordiantion is the coordination between nerves and muscles. It is also known as “Motor Control ”. Neuromuscular coordination relates to the ability of nervous system to efficiently recruit a muscle or group of muscles in order to perform a specific task

3. Neuromuscular Coordination Works On Two Levels Intermuscular Coordination Intramuscular Coordination

4. Relates to the interaction between muscles group(Agonist, Antagonist,fixators and neutralizers) while performing a specific task or activity. The greater the level of coordination between different muscles groups the better. INTERMUSCULAR COORDINATION

5. Bicep curls;

6. INTRAMUSCULAR COORDINATION Is the activation of individual neuromuscular units within a singe muscle fibre. The activation of muscle fibre is dependent on : Rate Coding( “Firing rate” of action potential) Recuitment of neuro muscular motor units Synchronization of motor units

7. RATE CODING It is the firing rate of neurouscular control units which in return increases the strength of muscle contraction . When action

8. Muscle AP (cont.) Spread of the AP via Transverse Tubules Fig. 7.5 Transverse (T) tubule- sarcoplamic reticulum system

9. Fig. 7.7 Excitation-contraction coupling in the muscle showing (1) an AP that causes the release of Ca ions from the sarcoplasmic reticulum and then (2) re-uptake of the calcium ions by the calcium pump.

10. RECRUITMENT OF NEUROMUSCULAR MOTOR UNITS By working against resistance,muscles can recruit mOre motor units to overcome resistance. It could be increased by : Maximum load training OR Plyometric training

11. CONT…. Motor neurons innervate muscle fibers Motor end plate is where they meet Neurotransmitters are released by nerve signal: this initiates calcium ion release and muscle contraction Motor Unit : a motor neuron and all the muscle fibers it innervates (these all contract together)

12. PLYOMETRIC TRAINING Excercises in which muscles exert maximum force in short interval of time. Its goal is to increase muscle power.

13. SYNCHRONIZATION OF MOTOR UNITS The process refers to the summation of motor unit while performing an activity.The degree of summation of motor unit is influenced by when more and more units being stimulated. It can be enhance during ; Strenght training programmes

14. STRENGTH TRAINING PROGRAMMES

15. MECHANISM OF NEUROMUSCUAR COORDINATION Mechanism of neuromuscuar coordination comprises on 4 leves ; The cerebelum cortex The motor pathway The cerebellum Kinaesthetic sensation Motor Unit : a motor neuron and all the muscle fibers it innervates (these all contract together)

16. MECHANISM OF NEUROMUSCULAR CO-ORDINATION THE CEREBRAL CORTEX : Voluntary movement is initiated in response to sensory stimulus.An initiation centre exist in the brainstem which alert the cerebral cortex which then is responsible for planning the pattern of movement. 2. THE MOTOR PATHWAY : The action of each muscle group is determined by the afferent impulses which reach it by the motor pathways.

17. Cont.. 3. THE CEREBELLUM : The cerebellum is a receiving station of information which reaches it by the afferent pathways conveying impulses of kinesthetic sensation from the periphery and from other parts of the brain. 4. KINAESTHETIC SENSATION : The afferent impulses of kinaesthetic sensation arise from proprioceptors situated in muscles tendons and joints and they record contraction or stretching of muscles and the knowledge of movement and positions of limb

18. EXERCISES RELATED TO NEUROMAUSCULAR COORDINATION Exercises that improve the brain body connection with coordinated movement : SHOOTING BASKETBALL WALKING BACKWARD SIDE-STEPPING KARATE KICK ON ONE LEG

19. WALKING BACKWARD

20. SIDE STEPPING

21. KARATE KICKS ON ONE LEG

22. Would you like to ask,

23. “Have a bright future ahead ..  (so be it)