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Across 2. aerobic exercise is exercise which gets your ____ ____ up 3. exercise helps you build your _______ 7. these get bigger and stronger the more you excercise 9. doing aerobic exercise regularly makes your heart pump more _____ with each beat 12. The heart rate of the fit person returns to their resting heart rate in a ___ time 13. The fit persons heart rate rises more _____ 18. The muscles start to produce more ____ (CO2) as they work harder 21. means with oxygen 22. an example of a sport which requires power is ____ 23. Used when exerting a force in a short, fast burst e.g throwing a ball or long jump 26. This is used when you try to move an immoveable object, or carry a heavy object 27. Your muscles can continue to exert a lot of force for a long period 29. pumps your blood 30. it can take up to __ hours to replenish your energy stores

Down 1. Your heart and lungs can keep your muscles supplied with Oxygen throughout exercise 4. The fit person has a _____ resting heart rate, before they begin to exercise 5. ____helps you stretch your muscles without injury 6. strong movements performed with speed 8. if you perform aerobic exercise regularly you get ___ ___ 10. Repeatedly applying force, over a long period e.g. doing 20 push ups 11. We ____ more during exercise to help cool us down. 14. means without oxygen 15. exercise helps you with your ___ composition 16. Your body needs extra _____ to help get rid of lactic acid 17. at least how long should you exercise a week? 19. an example of aerobic exercise is 20. aerobic exercise helps your j____ grow thicker and stronger 24. The heart ____ even stronger to pump more blood with each beat 25. ____helps you lift throw and carry objects 28. _____lets you run faster