Sunday, January 26, 2020
Physical Activity Recommendations for the Elderly
Physical Activity Recommendations for the Elderly Introduction Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity (WHO, 1946). There are many factors which have an impact on health and quality of life, including lifestyle choices of each individual. Diets high in fruits and vegetables and participation in regular physical activity are associated with a lower risk for several chronic diseases and conditions (US department of health and human services, 2005). Physical inactivity is very common globally with 31% of adults over 15 years old being insufficiently active. Insufficient physical inactivity results in about 3.2 million deaths per year (WHO, 2008). Elder adults are generally more vulnerable to malnutrition. This is because both lean body mass and basal metabolic rate decrease with increasing age. It has been found that many diseases suffered by the older people are diet- related. Other factors contributing to malnutrition include dietary, psychosocial, physiological and economic changes (DiMaria-Ghalili, R. A., Amella, E., 2005). Global Recommendations on physical activity for 65 years and above according to the WHO Older adults should do at least 150 minutes of moderate-intensity aerobic physical activity throughout the week or do at least 75 minutes of vigorous intensity aerobic physical activity throughout the week or an equivalent combination of moderate- and vigorous-intensity activity. Aerobic activity should be performed in bouts of at least 10 minutes duration. For additional health benefits, older adults should increase their moderate intensity aerobic physical activity to 300 minutes per week, or engage in 150 minutes of vigorous-intensity aerobic physical activity per week, or an equivalent combination of moderate-and vigorous-intensity activity. Older adults, with poor mobility, should perform physical activity to enhance balance and prevent falls on 3 or more days per week. Muscle-strengthening activities, involving major muscle groups, should be done on 2 or more days a week. When older adults cannot do the recommended amounts of physical activity due to health conditions, they should be as physically active as their abilities and conditions allow. Inactive people should start with small amounts of physical activity and gradually increase duration, frequency and intensity over time. Inactive adults and those with disease limitations will have added health benefits when they become more active. (WHO, 2011) Physical activity and bone loss Exercise plays an important role in building and maintaining bone and muscle strength. Physical activity positively influences most structural components of the musculoskeletal system that are related to functional capabilities and the risk of degenerative diseases. Physical activity also has the potential to postpone or prevent prevalent musculoskeletal disorders, such as mechanical low back pain, neck and shoulder pain, and osteoporosis and related fractures. Exercise can contribute to the rehabilitation of musculoskeletal disorders and recovery from orthopedic surgery. Muscles and bones respond and strengthen when they are stressed. This can be achieved by weight bearing or impact exercises which make the bones denser. Physical activity helps prevent weak bones and falls in the elderly. One-third of people over 65 have a fall each year and the risk of falling increases as age rises. People who have suffered fractures can benefit from special exercises and training (under medical supervision) to improve muscle strength and muscle function for greater mobility and improved quality of life. Balance training and Tai chi have been shown to decrease falls by 47% and reduce the risk of hip fracture by approximately 25%. Physical activity and hypertension Hypertension is defined as the constant pumping of blood through blood vessels with excessive force (WHO, 2011). Hypertension prevalence increases with advancing age and is higher in men than in women until the age of 55 years, but is slightly higher in postmenopausal women (Kannel WB, 2003). According to the 2009 NCD report, 38.1% of Mauritian people aged 65 and older were considered as hypertensive but were not on medications. 45.5% were being treated for hypertension. Hypertension is the major risk factor for stroke, heart failure, and coronary artery disease in older adults, while all of these disorders are important contributors to mortality and functional disability. Primary hypertension is the result of multiple conditions, such as genetic, nutritional, psychosocial, and life style factors. One of the life style factors leading to hypertension is obesity, which is usually related to a sedentary life style and inadequate physical activity. Since most elderly people have an inactive routine, they are at a much higher risk of developing high blood pressure. Therapeutic lifestyle changes, such as reduced dietary sodium intake, weight loss, regular aerobic activity, and moderation of alcohol consumption, have been shown to benefit elderly patients with hypertension. Regular aerobic exercise, consisting of a minimum of 30 min of interval training on a treadmill done three times a week, has been shown to be well tolerated and beneficial (Westhoff TH et al., 2007). The physiological effects of exercise on hypertension are complex and not fully understood. Specific mechanisms have been found to be relevant. An immediate (acute) reduction in BP following exercise has been termed ââ¬Ëpost-exercise hypotensionââ¬â¢ and is agreed to be caused by reductions in vascular resistance. (Hamer, 2006). The chronic benefits can be partially explained by a decreased systemic vascular resistance in which the autonomic nervous system and renin-angiotensin system are most likely the underlying regulatory mechanisms (Cornelissen and Fagard, 2005). Another factor contributing to this decrease in vascular resistance is the increase of nitric oxide production (from different sites in the body) causing a vasodilation in response to regular aerobic exercise. Physical exercise and diabetes Diabetes is a chronic disease, which occurs when the pancreas does not produce enough insulin, or when the body cannot effectively use the insulin it produces. This leads to an increased concentration of glucose in the blood (hyperglycemia). Diabetes is classified in three main categories: Type 1 diabetes (also known as insulin-dependent) Type 2 diabetes (also called non-insulin-dependent) Gestational diabetes 347 million people worldwide have diabetes (Danaei G et al., 2011). The prevalence of diabetes in adults aged 20-74 years was 21.3%: 21.9% in men and 20.6% in women (NCD report, 2009). Physical activity plays an important role in the management of type 2 diabetes, particularly glycemic control (Canadian Diabetes Association Clinical Practice Guidelines Expert Committee, 2003., Zinman B, et al., 2004., Boule NG et al., 2001., Ronnemaa T et al., 1986) and improvements in cardiovascular risk profile such as decreased hyperinsulinemia, increased insulin sensitivity, reduced body fat, decreased blood pressure and better lipid profiles (Lehmann R et al.,1997., Schneider SH et al.,1992). Regular moderate physical activity and cardiorespiratory fitness are also associated with reductions in mortality of approximately 45 to 70% in type 2 diabetes populations (Wei M, Gibbons, et al., 2000) Moreover, regular moderate physical activity can decrease glycosylated hemoglobin (A1C) to a level associated with reduced risk of diabetic complications (Boule NG et al., 2001) and is therefore favorably delaying the onset of type 2 diabetes in high-risk groups (Knowler WC et al., 2002., Lindstrom AM et al., 2003). The decline in insulin sensitivity with aging is relatively due to a lack of physical activity. It is likely that maintaining better levels of fitness in the older population will lead to less chronic vascular disease and an improved quality of life (ADA, 2004). Physical activity and obesity Obesity is defined as an unhealthy excess accumulation of fat in the body, which increases the risk if medical illness and premature mortality. It is due to an imbalance between energy intake and energy expenditure. Physical activity contributes to the creation of an energy deficit by increasing total energy expenditure, and this can promote weight loss. Aging is associated with a decrease in all major components of total energy expenditure (TEE) including resting metabolic rate (RMR; which accounts for ââ°Ë70% of TEE), thermic effect of food (which accounts for ââ°Ë10% of TEE), and physical activity (which accounts for ââ°Ë20% of TEE). Physical activity decreases with increasing age, and it has been estimated that decreased physical activity accounts for about one-half of the decrease in TEE that occurs with aging (Elia M, Ritz P, Stubbs RJ., 2000). Hormonal changes such as reduced responsiveness to thyroid hormone, decreased secretion of growth hormone, decrease in serum testosterone and resistance to leptin that occur during aging can also enhance the accumulation of fat ( American Journal of Clinical Nutrition, 2005). Obesity is associated with a number of complications as decreased survival metabolic abnormalities high blood pressure insulin resistance dyslipidemia pulmonary abnormalities arthritis urinary incontinence cataracts cancer Moderate weight loss in conjunction with physical activity improves physical function and health-related quality of life in obese older persons. Physical activity and cardiovascular health A higher rate of cardiovascular events and a higher death rate have been observed in those individuals with low levels of physical fitness (Pate RR et al., 1995., US Public Health Service, Office of the Surgeon General, 1996). Even midlife increases in physical activity, through change in occupation or recreational activities, are associated with a decrease in mortality (Paffenbarger RS et al., 1993). Despite this evidence, however, the vast majority of adults remain effectively inactive. According to AHA, a sedentary lifestyle is one of the major risk factors for cardiovascular diseases. Evidence from many scientific studies shows that regular exercise decreases the chance of having a heart attack or experiencing another cardiac event, such as a stroke, and reduces the possibility of needing a coronary revascularization procedure (bypass surgery or coronary angioplasty). Benefits of regular exercise on cardiovascular risk factors include: Increase in exercise tolerance Reduction in body weight Reduction in blood pressure Reduction in bad (LDL and total) cholesterol Increase in good (HDL) cholesterol Increase in insulin sensitivity In addition, exercise training positively impacts the above risk factors even in patients older than 75 years (American Family Physician, 2005). There is also evidence that exercise training improves the capacity of the blood vessels to dilate in response to exercise or hormones, consistent with better vascular wall function and an improved ability to provide oxygen to the muscles during exercise. As oneââ¬â¢s ability to transport and use oxygen improves, regular daily activities can be performed with less fatigue. This is particularly important for patients with cardiovascular disease, whose exercise capacity is typically lower than that of healthy individuals. Patients with newly diagnosed heart disease who participate in an exercise program report a more positive outlook in terms of quality of life, such as more self-confidence, lower stress, and less anxiety. Importantly, researchers have found that for heart attack patients who participated in a formal exercise program, the death rate is reduced by 20% to 25%. This is strong evidence in support of physical activity for patients with heart disease (Circulation, 2003). Physical activity and cancer The International Agency for Research on Cancer estimates that 25% of cancer cases worldwide are caused by obesity and a sedentary lifestyle. These factors may increase cancer risk by several mechanisms such as increased estrogens and testosterone, hyperinsulinemia and insulin resistance, increased inflammation, and depressed immune function. Several studies have shown that physical activity and diet changes can alter biomarkers of cancer risk (Journal of Nutrition, 2007). There is strong epidemiologic evidence for reduced risk of some cancers with increasing physical activity. The strongest evidence exists for colorectal and postmenopausal breast cancer, with possible associations for prostate, endometrial, and lung cancer (Friedenreich CM, Orenstein MR., 2002). Types of physical activities There are 4 main types of physical activities namely aerobic, muscle strengthening, bone strengthening, and stretching and balance activities. (Dairy Council of California, 2014) (National heart, blood and lung institute, 2011). Aerobic activities also called cardiovascular exercises help improve the condition of lungs and heart, increase stamina, improve blood circulation and burn body fat. Such activities might include walking, jogging, bicycling, climbing stairs, walking on a treadmill, dancing, swimming or jumping rope. These types of activities help to raise your heart rate and increase your breathing for an extended period of time as well as decrease the blood pressure. Muscle strengthening increases the body metabolism by burning more calories after having stopped exercising. This is achieved by an increase in muscle mass. Muscle-strengthening activities improve the strength, power, and endurance of muscles. Doing pushups and sit-ups, lifting weights, climbing stairs, and digging in the garden are some examples. Strength training helps make bones stronger, improves balance and increases muscle strength. All of this helps prevent osteoporosis and lowers the risk of hip fractures from falls. Strength training has also been shown to lessen arthritis pain. Stretching helps to ease movement, improve flexibility and prevent muscle strain and injury. Stretching also helps to warm up the body and prepare for exercise. Balance activities help you maintain posture and balance to keep from falling. This is particularly important for the elderly who are at risk for bone fractures. Levels of physical activities by intensities Intensity refers to the rate at which the activity is being performed or the magnitude of the effort required to perform an activity or exercise (WHO, 2014). The levels of intensities of physical activities are usually expressed in METs, Metabolic Equivalents. MET is the ratio of a persons working metabolic rate relative to their resting metabolic rate. One MET is defined as the energy cost of sitting quietly and is equivalent to a caloric consumption of 1kcal/kg/hour. It is estimated that compared with sitting quietly, a persons caloric consumption is three to six times higher when being moderately active (3-6 METs) and more than six times higher when being vigorously active (>6 METs). One limitation to this way of measuring exercise intensity is that it does not consider the fact that some people have a higher level of fitness than others. Thus, walking at 3 to 4 miles-per-hour is considered to require 4 METs and to be a moderate-intensity activity, regardless of who is doing the activity whether a young marathon runner or a 90-year-old adult. Light-intensity activities require the least amount of effort, compared to moderate and vigorous activities. Light intensity activity is related to energy expenditure of less than 3 METs. It does not increase the heart rate. Moderate-intensity physical activity raises the heart rate, breathing rate and body temperature. During such type of activity, one can talk but not sing. The caloric consumption is from 3 to 6 METS. Vigorous intensity physical activity causes the greatest amount of oxygen consumption. It burns more than 6 METS. A person cannot utter more than a few words without gasping for breath. Examples of physical activities based on intensity Light Activity less than 3.0 METS* (less than 3.5 calories per minute) Moderate Activity less 3.0-6.0 METS* (3.5 ââ¬â 7 calories per minute) Vigorous Activity greater than 6.0 METS* (more than 7 calories per minute) Casual Walking Bicycling less than 5 mph Stretching Sitting Light weight training Dancing slowly Leisurely sports (table tennis, playing catch) Floating Boating Fishing Golfââ¬âusing cart Light yard/house work Occupations requiring extended periods of sitting Brisk walking (3 4.5 mph) Walking uphill Hiking Roller skating at leisurely pace Bicycling 5-9 mph Low impact aerobics Aqua aerobics Light calisthenics Yoga Gymnastics Jumping on a trampoline Weight training Moderate dancing Boxingââ¬âpunching bag Most aerobic machines (e.g., stair climber, elliptical, stationary bike)ââ¬âmoderate pace Competitive tennis, volleyball, badminton, diving Recreational swimming Canoeing Horseback riding Golfââ¬âcarrying clubs Housework that involves intense scrubbing/cleaning Shoveling snow Carrying a child weighing more than 50 pounds Occupations that require an extended amount of time standing or walking Race walking (more than 4.5 mph) Jogging/Running Wheeling a wheelchair Mountain climbing Backpacking Fast pace in-line skating Bicycling more than 10 mph High impact aerobics Step aerobics Vigorous calisthenics Karate, judo, tae kwon do, jujitsu Jumping rope, jumping jacks Circuit weight training Vigorous dancing Boxingââ¬âsparring Most aerobic machines (e.g., stair climber, elliptical, stationary bike)ââ¬âvigorous pace Competitive basketball, soccer, football, rugby, kickball, hockey, lacrosse Swimming laps or synchronized swimming Treading water Water jogging Water polo Downhill or cross country skiing Pushing non-motorized lawnmower Occupations that require heavy lifting or rapid movement Source: U.S. Department of Health and Human Services. (1999). Promoting physical activity. Champaign, IL: Human Kinetics.
Friday, January 17, 2020
When Children or Young People May Need Urgent
Identify circumstances when children or young people may need urgent medical attention Some children may be too young or may not be physically able to tell you when they need medical attention due to a disability. Often children and young people can become seriously ill very suddenly which means that as a member of staff you should be alert to any changes in their behaviour which could indicate pain or nausea. When a child becomes sick or lets you know that they feel unwell, you will need to sufficiently look after them until their parent or a carer arrives to collect them. In life threatening situations the emergency services should always be contacted straight away. An example of this would be if a child had any of the following signs of acute illness.An open wound that wonââ¬â¢t stop bleeding or where the blood is pumping out.Burns or scalds to the childââ¬â¢s skinMeningitis symptoms such as a stiff neck, fever, headache and a rash that doesnââ¬â¢t fade when pressed by a glass.Confusion, headache, vomiting or blurred vision after a head injury.Being floppy, unresponsive or unconscious.Difficulty breathing and blueness around the lips.Having a high fever, heat exhaustion or severe sunburn.Some children may be too young or may not be physically able to tell you when they need medical attention due to a disability. Often children and young people can become seriously ill very suddenly which means that as a member of staff you should be alert to any changes in their behaviour which could indicate pain or nausea. When a child becomes sick or lets you know that they feel unwell, you will need to sufficiently look after them until their paren t or a carer arrives to collect them. In life threatening situations the emergency services should always be contacted straight away. An example of this would be if a child had any of the following signs of acute illness.An open wound that wonââ¬â¢t stop bleeding or where the blood is pumping out.Burns or scalds to the childââ¬â¢s skinMeningitis symptoms such as a stiff neck, fever, headache and a rash that doesnââ¬â¢t fade when pressed by a glass.Confusion, headache, vomiting or blurred vision after a head injury.Being floppy, unresponsive or unconscious.Difficulty breathing and blueness around the lips.Having a high fever, heat exhaustion or severe sunburn.Some children may be too young or may not be physically able to tell you when they need medical attention due to a disability. Often children and young people can become seriously ill very suddenly which means that as a member of staff you should be alert to any changes in their behaviour which could indicate pain or nausea. When a child becomes sick or lets you know that they feel unwell, you will need to sufficiently look after them until their parent or a carer arrives to collect them. In life threatening situations the emergency services should always be contacted straight away. An example of this would be if a child had any of the following signs of acute illness.An open wound that wonââ¬â¢t stop bleeding or where the blood is pumping out.Burns or scalds to the childââ¬â¢s skinMeningitis symptoms such as a stiff neck, fever, headache and a rash that doesnââ¬â¢t fade when pressed by a glass.Confusion, headache, vomiting or blurred vision after a head injury.Being floppy, unresponsive or unconscious.Difficulty breathing and blueness around the lips.Having a high fever, heat exhaustion or severe sunburn.
Thursday, January 9, 2020
Weather Phobia Signs and Symptoms
Do you jump at every flash of lightning and rumble of thunder?à Or monitor the TV whenever theres a severe weather threat near your home or workplace? If you do, its very possible you have a weather phobiaââ¬âa marked fear of or anxiety about a specific weather type or event.à Weather phobias are included in the natural environment family of phobiasââ¬âfears triggered by objects or situations found in nature.à Why Am I Afraid?à Phobias are sometimes described as irrational fears, but they dont always develop out of nowhere. If youve ever experienced a natural disaster such as a hurricane, tornado, orà wildfireââ¬âeven if you didnt suffer any physical injury or traumaââ¬âits possible that the unexpected, sudden, or overwhelming nature of the event could have taken an emotional toll on you. à You Might Have a Weather Phobia If... If you feel any of the following in certain weather situations, you may suffer, to some degree, from a weather phobia:à Anxiety and panic (heart palpitations, shortness of breath, sweating, and nausea)A desire to be around others when unfavorable weather is forecast or occurringAn inability to sleep or eat during sever weatherHelplessness when certain weather is occurringYou change your schedule so that you canà planà around ill weatherYou obsessively monitor the TV, weather forecasts, or your weather radio One in 10 Americans Are Afraid of Weatherà While you might feel ashamed to be afraid of something like weather, which most other people consider to be routine, please know that youre not alone. According to the American Psychiatric Association, approximately 9-12% of Americans have natural environment phobias, of which 3% of that number are afraid of storms. Whats more, some meteorologists can trace their interest in learning about weather back to a fear of weather. Let this encourage you that your weather phobias can be overcome! Coping with Weather Fears When your weather fear strikes, you may feel helpless. But there are a number of things you can do, both before and during attacks, to help manage anxiety and stress. Learn how weather works. If youre afraid of something, the last thing you may want to do is willingly subject yourself to it. But sometimes, fear of something is rooted in a lack of knowledge of it. If you understand the reality of how weather works, you can better differentiate between threats that are real and those that are perceived in your mind. Read weather books, visit science museum exhibits, and learn about weather basics from your favorite weather company and links. (Your presence here on Aboutà Weather means youre already off to a good start!) Practice weather safety. Having an emergency plan in place may help put your mind at ease should bad weather actually strike. It can also make you feel like you have more control of the situation, and are not just a passive victim. Relax. While its easier said than done, relaxing is one of your best defenses. To help keep calm, try engaging in activities that keep your mind occupied and off of the weather happening outside your do or. Practice a favorite hobby or start up a conversation with friends or family. Meditation, prayer, music, and aromatherapy are other good options. (Lavender, chamomile, bergamot, and almond are scents frequently used to ease anxiety.) To find out more, including what the most common weather phobias experienced among Americans are, read Afraid of the Atmosphere. Sources: Jill S. M. Coleman,à Kaylee D. Newby,à Karen D. Multon, andà Cynthia L. Taylor.à Weathering the Storm: Revisiting Severe-Weather Phobia.à Bulletin of the American Meteorological Society (2014).
Wednesday, January 1, 2020
A Study Of Body Movement, Language And Gestures - 1454 Words
Kinesics is the study of body movement, language and gestures. A lot of it is done unconsciously, meaning unnoticed, by either yourself or by disregarding otherââ¬â¢s actions. Kinesics are contextual and situationally determined. This changes how one views the communication or, applies the information transmitted. Different cultures use their own kinds of kinesics. A lot of differences are also seen through the relational structures of interactions between content through, subcultures and micro cultures. Structures that appear through kinesics are; power distance, physical, spacial, and controlled interaction. Also including gestures like: artifacts, eye movement/behaviour and vocalics such as speech and sounds acting as nonverbalââ¬â¢s. Gestures benefit the receiver and the sender, often taking the place of words. This type of nonverbal communication can be used to convey an understanding, aid in revealing complex ideas and to get attention. Gestures can be done to show listen ing and comprehension, such as a head nod. These can also help to explain, answer or promote what is being said verbally in a visual way. An example of this would be in a conversation with someone. The person speaking may gestures money by rubbing their fingers to their thumb, to highlight the subject of money which is being spoken upon. Another example would be in the discussion of distance or large size extending hands and arms out from the body, thus emphasizing the extreme amount being discussed. PaulShow MoreRelatedA Study Of Body Movement, Language And Gestures1443 Words à |à 6 Pages Kinesics are the study of body movement, language and gestures. A lot of it is done unconsciously, meaning unnoticed, by either yourself or by disregarding otherââ¬â¢s actions. Kinesics are context and situationally determined. This changes how one views the communication or, applies the information transmitted. Different cultures use their own kinds of kinesics. 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