1 / 13

Body in Action(d) Performance

This guide explores the biology of muscle fatigue during physical activity. Muscle fatigue arises from repeated contractions leading to depletion of oxygen and accumulation of lactic acid. During intensive exercise, respiration rates increase, enhancing oxygen delivery to muscles. Recovery time varies between trained athletes and untrained individuals, as fitness levels influence lung capacity and blood circulation. Understanding these physiological processes can enhance training and recovery strategies for optimized performance.

mave
Download Presentation

Body in Action(d) Performance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Body in Action(d) Performance SQA QUESTIONS

  2. Muscle fatigue WYSK ontinuous apidly atigue • C_________ or r________ repeatedcontraction of muscle results in f________. • Muscle fatigue results from a lack of o_______ and a build up of l______ a____. • When muscles cannot get enough o_______ they use a__________ respiration to get e______. Anaerobic respiration gives only a l______ energy and releases lactic acid which causes f_______. • Equation of anaerobic respiration • G________ l_____ acid + little e_____ xygen actic cid xygen naerobic nergy ittle atigue lucose actic nergy

  3. Exercise and training WYSK xygen • When we exercise our muscles need more o________. • Our b_______ rateincreases so that the lungs can take in more o_______ and make the bloodmore o________ rich. • Our p____ rateincreases to make the blood flow round the body f______ to deliver more o_______ to the m________ • With exercise , the p____ rate, b_______ rate and l_____ a_____ levels rise less in an a_______ than in an u________ person reathing xygen xygen ulse aster xygen uscles reathing ulse cid thlete actic ntrained

  4. Recovery time WYSK eturn ulse reathing • Recovery time is the time taken to r_______ to normal levels of p______ rate, b______ rate and l______ acid. • Recovery time will be s_______ in an athlete than in a person who is u______. • Training improves the e________ of the lungs and circulation e.g. • The heartincreases in s____ and s________ and so p_____ blood round the body f______ • The lungsincrease in v_______ and can absorb m____ oxygen actic horter ntrained fficiency ize trength umps aster olume ore

  5. 50 40 X X X 30 X X 20 10 Time at start of sprint (s)

  6. 50 40 30 20 10 Time at start of sprint (s) 90 75 Distance decreases Repeat the experiment

  7. oxygen Lactic acid

  8. 70 80 15 – 9 = 6 180 – 80 = 100

  9. 20 110 88,89,90

  10. 20 80 38

  11. 900 ÷ 300 = 3 12000 ÷ 1200 = 100 Decrease = 900 % decrease = 900 ÷ 1500 = 0.6 0.6 x 100 = 60%

More Related