Final answer:
Physical skills influenced by training include physical and cognitive changes in old age, motor skills, and muscle performance.
Step-by-step explanation:
Physical skills influenced by training include:
- Physical and cognitive changes in old age: Physical declines such as stamina, strength, reflex times, and senses
- Motor skills: Ability to move the body and manipulate objects
- Muscle performance: Altered appearance and changes in muscle performance through exercise and use