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health
- overall condition of a person’s body or mind and to the presence or absence of illness or injury
- Differs based on factors beyond your control
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wellness
- optimal health and vitality
- determined by the decisions you make about the way you live
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enhanced wellness
making conscious decisions to control one’s risk factors that contribute to illness and injury
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6 dimensions of wellness
- Physical wellness
- Emotional wellness
- Intellectual wellness
- Spiritual wellness
- Interpersonal wellness
- Environmental wellness
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occupational wellness
the level of happiness and fulfillment you gain through your work
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financial wellness
your ability to live within your means and manage your money
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life expectancy doubling gives rise to these emergences of new major health threats
- Heart disease
- Cancer
- Stroke
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the National Healthy People Initiative
aims to prevent disease and improve Americans’ quality of life
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goal of the National Healthy People Initiative
- Increase quality and years of healthy life
- Eliminate health disparities among Americans
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behaviors that contribute to wellness
- Be physically active
- Choose a healthy diet
- Maintain a healthy body weight
- Manage stress effectively
- Avoid tobacco and drug use and limit alcohol consumption
- Protect yourself from disease and injury
- Develop meaningful relationships
- Learn about the health care system
- Plan for successful aging
- Care for the environment
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things to consider before you start process
- Examine your current health habits
- –Consider how your current lifestyle is affecting your health
- Choose a target behavior
- –Pick one behavior to change
- Learn about your target behavior
- –Take into consideration the risks and rewards of changing that behavior
- Find help through resources available
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how to build motivation to change
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Examine the pros and cons of change
- –Evaluate the short- and long-term benefits and costs
- Boost self-efficacy through:
- Locus of Control
- –Internal or external
- Visualization and Self-talk
- –Seeing yourself engaging in a new and healthy behavior
- Role models and other supportive individuals
- Identify and overcome key barriers to change
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stages of change
- precontemplation
- contemplation
- preparation
- action
- maintenance
- termination
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precontemplation
people do not think they have a problem and have no intention of changing behavior
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contemplation
people know they have a problem and are intending to take action within 6 months
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preparation
people plan to take action within a month
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action
people outwardly modify their behavior and environment
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maintenance
successful behavior change for 6 months or longer
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termination
people are no longer tempted by the behavior which they have changed
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steps to recover from a relapse
- 1.Forgive yourself
- 2.Give yourself credit for your progress you have already made
- 3.Move on
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steps to creating a personalized plan
- 1. Monitor your behavior and gather data
- 2. Analyze the data and identify patterns
- 3. Be smart and set realistic, specific, measurable attainable, time frame-specific goals
- 4. Devise a strategy or plan of action
- •Get what you need
- •Modify your environment
- •Control related habits
- •Reward yourself
- •Involve people around you
- •Plan for challenges
- 5. Make a personal contract
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how to stay with your new change
- Social influences
- Levels of motivation and commitment
- Choice of techniques and level of effort
- Stress barrier
- Procrastinating, rationalizing, and blaming
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physical activity
movement carried out by the skeletal muscles that requires energy
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exercise
planned, structured, repetitive movement intended to improve or maintain physical fitness
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levels of fitness depends on what?
- Heart’s ability to pump blood
- Energy-generating capacity of the cells
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why is physical activity essential to health?
confers a wide variety of health benefits
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how often should adults do resistive activity?
at least twice a week
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5 components of fitness that help establish health benefits
- Cardiorespiratory Fitness
- Muscular Strength
- Muscular Endurance
- Flexibility
- Body Composition
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what happens when cardiorespiratory fitness improves?
- The heart pumps more blood per heartbeat
- Resting heart rate slows
- Blood volume increases
- Blood supply to tissue improves
- The body can cool itself better
- Resting blood pressure decreases
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muscular strength
the amount of force a muscle can produce in a single maximum effort
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muscular endurance
the ability to resist fatigue and sustain a given level of muscle tension for a given time.
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benefits of muscular strength and endurance
- Increased body mass
- Increased metabolism
- Increased bone density
- Reduced effects of sarcopenia
- Improved self-confidence and ability to manage stress
- Improved posture and reduction of low back pain
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flexibility
- ability to move the joints through their full range of motion
- needed in everyday routines
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factors that could affect flexibility
- joint structure
- length and elasticity of connective tissue
- nervous system activity
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benefits of flexibility
- Lowered risk of back injuries
- Promotion of good posture and decreased risk of other joint injuries
- Reduction in age-related stiffness
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body composition
The proportion of fat and fat-free mass (muscle, bone, water) in the body
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what is a healthy body composition comprised of?
- high levels of fat-free mass
- an acceptable low level of body fat
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effects of too much body fat
- Heart disease
- Insulin resistance
- High blood pressure
- Stroke
- Joint problems
- Type II Diabetes
- Gallbladder disease
- Cancer
- Back pain
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speed
the ability to perform a movement in a short amount of time.
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power
the ability to exert force rapidly, based on a combination of strength and speed
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agility
the ability to change the position of the body quickly and accurately
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balance
the ability to maintain equilibrium while moving or while stationary
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coordination
the ability to perform a motor tasks accurately and smoothly using body movements and the senses
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reaction and movement time
the ability to respond and react quickly to a stimulus.
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goal of physical training
produce these long-term changes and improvements in the body’s functioning
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training principles
- specificity
- progressive overload
- reversibility
- individual differences
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specificity
the training principle that the body adapts to the particular type and amount of stress placed on it
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progressive overload
the training principle that placing increasing amounts of stress on the body cause adaptations that improve fitness
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reversibility
the training principle that the body will return to its original homeostatic state when amount of physical stress is removed for a specific time
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individual differences
each individual’s body adapts to the stress differently
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to develop particular fitness or skill component
- must perform exercises designed specifically for that component
- this is the principle of specificity
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weight training
- develop muscular strength
- will not be very effective in improving cardiorespiratory endurance or flexibility
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well-rounded exercise program
includes all components of fitness designed to improve different parts of the body or towards specific sport activities
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why amount of overload
important since too little will not have much effect upon fitness levels and too much will increase the likelihood of an injury
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progression
critical since exercising at the same levels will not provide adaptations and can lead to a plateau
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FITT
- principle for overload
- frequency:how often
- intensity:how hard
- time:how long (duration)
- type:mode of activity
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cardiorespiratory endurance
The ability of the body to perform prolonged, large-muscle, dynamic exercise at moderate to high levels of intensity
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cardiorespiratory system
- Consists of the heart, the blood vessels, and the respiratory system
- transports oxygen, nutrients, and other key substances to the organs and tissues that need them
- picks up waste products to where they can be used or expelled
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characteristics of the heart
- 4 chambers
- Size of a fist
- Located just beneath the sternum
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function of the heart
pump blood through 2 separate circulatory systems
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pulmonary circulation
Right side of the heart pumps blood to the lungs
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systematic circulation
Left side of the heart pumps blood through the rest of the body
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blood pressure
the force exerted by blood on the walls of the blood vessels, created by the heart
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pressure methods of the heart
- sytolic (systole)
- diastolic (diastole)
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systolic (systole)
heart's contraction
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diastolic (diastole)
heart's relaxation
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sinotrial (SA) node
bundle of specialized cells located in the right atrium that initiates the heartbeat
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arteries
carry blood away from the heart
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veins
carry blood back to the heart
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metabolism
the sum of all chemical processes necessary to maintain the body
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metabolic rate
the efficiency at which your body uses energy
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atp (adenosine triphosphate)
the basic form of energy used by cells
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three energy systems that create ATP and help fuel cellular activity
- immediate energy system (explosive)
- nonoxidative energy system(anaerobic)
- oxidative system (aerobic)
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immediate energy system (explosive)
- 10 or fewer seconds
- ATP stores and creatine phosphate (cp)
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nonoxidative energy system (anaerobic)
- 10 to 20 seconds
- creates ATP by breaking dorn glucose and glycogen
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oxidative energy system (aerobic)
- any activity greater than 120 seconds
- oxygen required to create ATP
- mitochondira
- maximal oxygen consumption or VO2max
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how to get your pulse
Count beats for 10 seconds and multiply the result by 6 to get rate in beats per minute
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cross-training
can help boost enjoyment and prevent injuries
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maximum heart rate (MHR)
220 - your age
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results of hot weather and heat stress
- dehydration
- heat cramps
- heat axhaustion
- heatstroke
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results of cold weather conditions
- drop in body temperature
- hypothermia
- frostbite
- wind chill concept
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RICE
- rest
- ice
- compression
- elevation
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benefits of well-developed muscles
- daily routines
- protection from injury
- enhancement of your overall well-being
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muscular strength
the amount of force a muscle can produce with a single maximum effort
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muscular endurance
the ability to resist fatigue while holding or repeating a muscular contraction
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muscle fibers
muscle cells connected in bundles
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myofibrils
smaller protein structures that make up muscle fibers
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hypertrophy
the development of large muscle fibers
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atrophy
the reduction of the size of the muscle fiber due to inactivity or injury
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hyperplasia
the increase in the number of muscle fibers
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slow-twitch fibers
- Fatigue resistant
- Don’t contract as rapidly and forcefully as fast-twitch fibers
- Rely primarily on the aerobic energy system
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fast-twitch fibers
- Contract rapidly and forcefully
- Fatigue more quickly than slow-twitch fibers
- Rely more on the anaerobic energy system
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motor unit
made up of a nerve connected to a number of muscle fibers
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motor unit recruitment
- happens when strength is required
- nerves assist with the action
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muscle learning
the ability to improve the body’s ability to recruit motor units
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muscular strength assessment
- measuring the maximum amount of weight a person can lift one time
- estimated maximum test (submaximal lift)
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muscular endurance assessment
counting the maximum number of repetitions of a muscular contraction a person can perform to fatigue
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static (isometric)
exercise involves a muscle contraction without a change in the length of the muscle or joint angle
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dynamic (isotonic)
- exercise involves a muscle contraction with a change in the length of the muscle
- Muscle contraction without a change in the length of the muscle or the angle in the joint
- Require no equipment
- Build strength rapidly
- Useful for rehabilitation
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types of dynamic (isotonic) training
- concentric contraction
- eccentric contraction
- Muscle contraction with a change in the length of the muscle
- Can be performed without or with equipment
- Can be used to develop strength or endurance
- Use full range of motion
- Are more popular with the general population
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warm up
should be performed prior to each weight training session
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cool down
weight training, relax for 5-10 minutes by stretching, which could possibly prevent soreness
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weight training safety
- use proper lifting techniques
- use spotters and collars with free weights
- be alert for injuries
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flexibility
- the ability of a joint to move through its normal range of motion
- highly adaptable fitness component and responds well when utilized as part of a fitness program
- joint specific, meaning that you must work all major joints, not just a few
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two types of flexibility
- static flexibility
- dynamic flexibility
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static flexibility
- ability to hold an extended position at one end in a joint’s range of motion
- Dependent on your ability to tolerate stretched muscles, joint structure, and tightness of connective tissues
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dynamic flexibility
- ability to move a joint through its range of motion with little resistance
- important for daily activities and sports
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what affects joint flexibility
- joint structure
- muscle elasticity and length
- nervous system
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joint structures
- Hinge joint
- Ball and socket
- Heredity plays a part
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muscle elasticity
- Collagen
- Elastin
- Elastic elongation
- Plastic elongation
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nervous system
- Proprioceptors
- Proprioceptive neuromuscular facilitation
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FITT to develope flexibility
- F: 2-3 days per week (minimum)
- I: stretch to point of mild discomfort, not pain
- T: hold for 15-30 sec & perform 2-4 times
- T: stretching exercise that focus on major joints
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types of stretching techniques
- Static Stretching
- Ballistic Stretching
- Dynamic (Functional) Stretching
- Proprioceptive Neuromuscular Facilitation (PNF)
- Passive vs. Active Stretching
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causes of lower-back pain
- Weak and inflexible muscles
- Poor posture
- Poor body mechanics during activities
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fuction and structure of spine
- Provides structural support for the body
- Surrounds and protects the spinal cord
- Supports body weight
- Serves as attachment site for muscles, tendons, ligaments
- Allows movement of neck and back in all directions
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core muscles
those in the abdomen, pelvic floor, sides of the trunk, back, buttocks, hip, and pelvis
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function of core muscles
stabilize the spine and help transfer force between the upper body and lower body
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results from lack of core muscles
create an unstable spine and stress muscles and joints
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risk factors of back pain
- Greater than 34 years old
- Degenerative diseases (arthritis or osteoporosis)
- Family or personal history
- Sedentary lifestyle
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underlying causes of back pain
- Poor muscle endurance and strength
- Excessive body weight
- Poor posture or body position at rest
- Poor posture body mechanics during activity
- Previous injuries
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how to prevent lower-back pain
- Maintain a healthy weight
- Stop smoking
- Reduce stress
- Avoid sitting, standing, or working in the same position for too long
- Use a supportive seat and a medium-firm mattress
- Warm up thoroughly before exercising
- Progress gradually when improving strength and fitness
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symptoms of acute back pain
- Pain
- Muscle spasms
- Stiffness
- Inflammation
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treatment of acute back pain
- Apply heat or cold
- Over-the-counter anti-inflammatory medication (ibuprofen or naproxen)
- Gentle flexibility
- Bed rest
- See physician if pain doesn't resolve within a short time
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protecting back when sleeping
- Lie on your side with your knees and hips bent
- If you lie on your back, place a pillow under your knees.
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protecting back when sitting
- Sit with your lower back slightly rounded, knees bent and feet flat on the floor
- Alternate crossing your legs or use a footrest to keep your knees higher than your hips.
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protecting back when standing
- Keep your weight mainly on your heels, with one or both knees slightly bent
- Try to keep your lower back flat (not arched) by placing one foot on a stool
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protecting back when walking
Keep your toes pointed straight ahead, your back flat, head up and chin in.
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protecting back when lifting
Bend at the knees and hips rather than at the waist and lift gradually using your leg muscles
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