How does training affect performance?

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Across
  1. 1. implies that gains in fitness occur when training load is progressively increased as improvements occur
  2. 6. point at which lactic acid accumulates rapidly in the blood
  3. 8. training that incorporates high intensity work with limited recovery
  4. 11. process of breaking down glucose to produce energy
  5. 13. principle that implies that greatest gains occur when training resembles competition movement
  6. 14. number of heartbeats/minute while at rest
  7. 17. apply resistance without changing muscle length
  8. 19. the amount of air the lungs can hold
Down
  1. 1. ability of working muscles to use the oxygen being delivered
  2. 2. range through which joints and body parts are able to move
  3. 3. the lowest level at which we can train and still make some fitness gains
  4. 4. generally is the use of free weights to lengthen and then contract muscle fibres
  5. 5. training that uses the aerobic energy system as the main source of energy
  6. 7. glucose stored in the body. Used for fuel when blood glucose levels decline
  7. 9. process of restoring ATP to its former state
  8. 10. amount of blood ejected by the left ventricle during a contraction
  9. 12. by product of the incomplete breakdown of CHO in the absence of oxygen
  10. 13. ability of a muscle or muscle group to exert a force against a resistance
  11. 15. referred to as the "detraining effect"
  12. 16. in the absence of oxygen
  13. 18. measures the energy value of food
  14. 20. in the presence of oxygen