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Unit 3

Unit 3. Physiological and Participatory Perspectives of Physical Activity. Chapter 1. National Physical Activity Guidelines & Methods of Assessing Physical Activity. Text Sources Nelson Physical Education VCE Units 3&4: 4 th Edition – Malpeli, Horton, Davey and Telford 2006.

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Unit 3

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  1. Unit 3 Physiological and Participatory Perspectives of Physical Activity

  2. Chapter 1 • National Physical Activity Guidelines & Methods of Assessing Physical Activity • Text Sources • Nelson Physical Education VCE Units 3&4: 4th Edition – Malpeli, Horton, Davey and Telford 2006. • 2. Live It Up 2: 2nd Edition – Smyth, Brown, Judge, McCallum and Pritchard 2006.

  3. National Physical Activity Guidelines National Physical Activity Guidelines & Methods of Assessing Physical Activity

  4. National Physical Activity Guidelines • The Australian Department of Health and Ageing has produced a set of guidelines on the minimum levels of physical activity required for optimum health and body weight. • They are not designed for high-level fitness or sports training, but are intended to provide realistic strategies for incorporating physical activity into our daily lives.

  5. Age & Training Principles p.6

  6. REVISION QUESTIONS • What is the recommended frequency of physical activity for a 52 year old male within the healthy weight range? • If a 10 year old boy averages 75 minutes of MVPA per day and watches 180 minutes of television, does he meet the National Physical Activity Guidelines? • If an individual who returns to the healthy weight range after being obese for several years accumulates 30 minutes of MVPA most days, would they be sufficiently active to avoid weight regain? Explain.

  7. Domains Examples Domains of Physical Activity Leisure-time physical activity Various types of activity; different surveys use generic or activity specific questions, and may ask details of activity frequency, duration and intensity. Gardening and yard work Various definitions, of varied intensities; may range from light-intensity gardening to vigorous chores or digging/moving heavy objects. Household chores Heterogeneous set of tasks; large gender differences; energy expenditure across tasks not well understood. Active transport Walking or cycling for transportation. Occupational physical activity Diverse occupations, with changes in energy expended in many occupations over recent decades. PA for older adults

  8. Need for and Benefits of Physical Activity National Physical Activity Guidelines & Methods of Assessing Physical Activity

  9. The Need for Physical Activity Physical activity can be defined as ‘any body movement produced by the skeletal muscles that results in expenditure of energy’. • Technology has lessened the need for human movement. • It is now much easier to live, work and play as a result of technology. • However, this reliance has made Australians more sedentary. • Human movement is essential for the health and maintenance of our bodies. • Sedentary lifestyles account for an estimated 1/3 of all deaths. • The most common deaths include heart disease, colon cancer and diabetes. • 30 minutes a day of activity has a range of health and social benefits.

  10. Benefits of Physical Activity • On average, every minute of walking can extend your life by one and a half to two minutes • A brisk walk can burn up to 300 calories per hour • Physical activity increases your circulation • Boosts energy levels and enhances your mood • Decrease your risk of many health problems including cardiovascular disease, type II diabetes, some forms of cancer and mental health conditions. • Improves your balance and flexibility • Increase muscle and bone strength • Physical activity helps maintain weight control • Improve health outcomes for people who are overweight or obese • Assist in managing diseases (heart disease, diabetes) • Increase the ability of people with certain chronic, disabling conditions to perform activities of daily living

  11. Benefits of Physical Activity

  12. REVISION QUESTIONS • Prior to the 1990s what was the focus of the Australian National Activity Guidelines? • The Surgeon General’s report concluded significant health gains could be obtained by engaging in physical activity on most days of the week at what intensity? • Provide two examples of physical activities within each domain of physical activity (household/gardening, leisure time, occupational and active participation) • What are the current National Physical Activity Guidelines for adults, children, and youth? • What types of physical activities are important for older people?

  13. Physical Activity Pyramid National Physical Activity Guidelines & Methods of Assessing Physical Activity

  14. Physical Activity Pyramid & Ladder • Educates people about the types of activities required to enhance fitness, health and wellbeing. • People need to participate in all activities in all levels. • Like the healthy eating food pyramid, the bottom of the pyramid is activities that we should participate in the most, were as the top is the least. • Fitness ladder

  15. How Active are Australians? National Physical Activity Guidelines & Methods of Assessing Physical Activity

  16. How Active are We? • Over 6.5 million Australians are active participants is sports • 60% of men and 53% of women successfully achieve the recommended time and frequency to enjoy the benefits of physical activity • However, frequency has declined since 1997. • 62% of children participate in sport outside of school hours. • 20-25% of children and adolescents are overweight. • Fewer older people were involved in sport than younger people • Just of 50% of those aged 15-24 were active participants

  17. Adult Participation p.9 • 57% of adults engage in sufficient physical activity for health benefits. • However adult male participation is decreasing. • Tertiary educated adults more active. • Retiree participation rates are increasing due to recent health awareness programs. • Most common activities (See table 1.3-1.6) Data Analysis 1.1 p.9 Data Analysis 1.2 p.14 Data Analysis 1.1 p.115

  18. Adolescent Participation National Health Survey Findings • 23% of adolescents don’t regularly participate in physical activity. • Only one-third of adolescents participate in vigorous activity. • Males more active than females. • Adolescents are significantly more active during warmer months of the year (See fig 1.5 p.15) Data Analysis 1.5 p.16 MET (Metabolic equivalent) 3.5ml/kg/min of O2 • Rest 1MET • Moderate activity 3MET • Vigorous activity 6+

  19. Children Participation ABS findings • 62% of children participate in organised sport. • Boys had a higher participation than girls. • Peak participation between 10-12 years of age. • Soccer is the most popular boys sport and netball for girls. Accelerometer findings • 5-6 year old children average four hours of physical activity per day. • 10-12 year olds only average 10 minutes. Tips for keeping kids active Australian Sports Commission Link Active After school program Structured Questions 1.6 p.19

  20. Age and Gender

  21. Sport Participation Rates

  22. Organised Activities

  23. Barriers to Participation Gender - Greater proportions of males participate in sport and physical activity than females. Females generally have less opportunity and less access to sporting activities. Socioeconomic Status – Well educated white collar workers are the most physically active Australians. Income – People with higher incomes can participate in a wider variety of activities and more often. Race – People born in Australia are more active than those who were not. Race is often used as a form of discrimination, thus reducing participation. Geographic Location – Where you live can limit access to facilities and specific sports

  24. Barriers to Participation Other Barriers • Lack of time due to other commitments • Lack of fun and enjoyment • Lack of self-motivation • Low self-efficiency • Injury • Lack of self-management skills • Lack of encouragement and support • Poor coaching • Negative environmental factors

  25. Barriers to Participation

  26. Measuring levels of Physical Activity National Physical Activity Guidelines & Methods of Assessing Physical Activity 10,000 steps

  27. Measuring Physical Activity among Individuals and Populations • Measuring the amount of physical activity is a complex procedure. • Information collected needs to address the types of activities, frequency, intensity and duration. • Physical activity covers many domains. Why measure our levels of activity? • Document how active our population is • Gives feedback on government health programs • An active nation is a healthy nation • Study the factors that influence our participation

  28. Methods of Measuring Physical Activity

  29. Dimensions of Physical Activity • Frequency – Number of times a person engages in an activity • Duration – Length of time engaged in an activity • Intensity – How hard an activity is • Type – Domains • Context – Where you are, when, who with etc. • Energy – Measured in METs • Expense – Cost in dollars • Reactivity – How much the measure biases towards the result.

  30. METS, Time and Intensity

  31. Subjective Measures • Examples of subjective (remembering physical activity done) are self-reported recall measures, diaries and logs. Eg. Active Australia Survey and IPAQ. Written Report 1.7 p.23

  32. The Active Australia Survey

  33. Objective Measures Direct Observation Direct Observation – Involves watching people and noting specific behaviours and activities they are participating in. Commonly used on children while playing. Advantages • Quantitative and qualitative information • Behaviour observed • Wider variety of information gained • Software available • Used in school and community settings Disadvantages • Difficult with large populations • Obtrusive and time consuming • Can cause bias

  34. Physical Activity logs/diaries • Disadvantages Advantages

  35. Objective Measures - SOPLAY System of Observing Play and Leisure Activity in Youth (SOPLAY) • Used to asses groups of people (Commonly school settings). • Uses a time-sampling technique in a given target area. See table 1.8 p.1.8 SeeSOPLAY form SOPLAY Laboratory 1.8 p.27

  36. Measurement Options – Direct Observation • Disadvantages Advantages

  37. Objective Measures – SOFIT and BEACHES SOFIT(System for Observing Fitness Instruction Time) • Measures physical activity during PE classes • Content and behaviour is observed (See graph) BEACHES (Behaviours of Eating Activity for Children’s Health Evaluation System) • Measures children’ eating and physical activity patterns at home and at school.

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