[Retracted] Content System of Physical Fitness Training for Track and Field Athletes and Evaluation Criteria of Some Indicators Based on Artificial Neural Network

<div>Schematic diagram of BP neural network structure.</div>

Discrete Dynamics in Nature and Society

fig5

Figure 5

Figure 5: [Retracted] Content System of Physical Fitness Training for Track and Field Athletes and Evaluation Criteria of Some Indicators Based on Artificial Neural Network 

Figure 5 | [Retracted] Content System of Physical Fitness Training for Track and Field Athletes and Evaluation Criteria of Some Indicators Based on Artificial Neural Network 