Learner Resource 2 – Exercise Short term effects of exercise In the space below, produce a mind map to explain the short term effects of exercise on the body. For each effect, explain how it occurs and why it is of benefit. Long term benefits of exercise Make your own notes, by answering the following questions: Which systems in the body will change with long-term exercise? Version 1 Exercise and metabolism 1 © OCR 2016 Explain what is meant by VO2max and how it may change with long term exercise. Describe the changes that will occur within muscles. Explain what is meant by slow twitch and fast twitch muscle fibres. Describe the effects of long-term exercise on the heart and lungs. Explain simply what is meant by carbohydrate loading and how it is achieved. Version 1 Exercise and metabolism 2 © OCR 2016 Describe the structure of glycogen and explain why it is an excellent storage molecule for muscle cells. Where else is glycogen stored in humans? When does glycogen storage (glycogenesis) occur, and which hormone is responsible for this process? When does glycogen breakdown (glycogenolysis) occur, and which hormones stimulate this process? Version 1 Exercise and metabolism 3 © OCR 2016 Illegal approaches to improving performance Name 3 illegal methods of improving performance. 1. 2. 3. Why are these methods illegal? Complete the following table:Method How does it improve performance Risk to health Steroid use Blood doping Use of EPO Version 1 Exercise and metabolism 4 © OCR 2016 List some legal methods of enhancing performance in athletes: Term Definition/description Stroke volume Cardiac output Tidal volume Vital capacity Vasodilation / vasoconstriction Carbonic acid Slow-twitch muscle fibres Fast-twitch muscle fibres Glycogen Glycogenolysis VO2 max OCR Resources: the small print OCR’s resources are provided to support the teaching of OCR specifications, but in no way constitute an endorsed teaching method that is required by the Board, and the decision to use them lies with the individual teacher. Whilst every effort is made to ensure the accuracy of the content, OCR cannot be held responsible for any errors or omissions within these resources. © OCR 2016 - This resource may be freely copied and distributed, as long as the OCR logo and this message remain intact and OCR is acknowledged as the originator of this work. OCR acknowledges the use of the following content: Please get in touch if you want to discuss the accessibility of resources we offer to support delivery of our qualifications: resources.feedback@ocr.org.uk Version 1 Delivery Guide Title 5 © OCR 2016