Concepts Ch 2
How long should an adult partake in moderate intensity exercises?
45-60 minutes
How much should an adult exercise in order to lose weight?
60-90 minutes per day on most days of the week
When comparing the least and most active men and women, the relative risk of death from all causes and the risk of heart disease decrease by how much?
65%
For resistance training, how many sets and exercises are recommended?
8-12 repetitions 8-10 different exercises
After 16 years, what was the survival rate of adults?
84% in those doing vigorous exercise, 78% in those doing moderate exercise, and 65% in those doing no physical activity
Which of the following reverses the slowest? Muscular strength or cardiovascular fitness
Muscular strength
Somatotype
a body-type classification system that describes people as predominately muscular (mesomorph), tall and thin (ectomorph), or round and heavy (endmorph)
Healthy body composition involves?
a high proportion of fat-free mass and an acceptably low level of body fat
Genetics
a person's inborn potential for physical fitness
Specificity
developing a particular fitness component requires performing exercises specifically designed for that component
What factors does cardiorespiratory endurance rely on?
ability of the lungs to deliver oxygen from the environment to the bloodstream, the capacity of the heart to pump blood, the ability of the nervous system and blood vessels to regulate blood flow, and the capability of the cells' chemical systems to use oxygen and process fuels for exercise and rest
Agility
ability to change the position of the body accurately and quickly
Power
ability to exert force rapidly, based on a combination of strength and speed
Balance
ability to maintain equilibrium while moving or stationary
Flexibility
ability to move joints through their full ranges of motion
Speed
ability to perform a movement in a short period of time
Coordination
ability to perform motor tasks accurately and smoothly using body movements and the senses
Cardiorespiratory endurance
ability to perform prolonged, large-muscle, dynamic exercise at moderate to high levels of intensity
Reaction and Movement time
ability to respond and react quickly to a stimulus
Muscular strength
amount of force a muscle can produce with a single maximum effort
How much blood is being circulated during exercise versus during rest?
as much as 90% during exercise and as little as 20% during rest
How many days a week should an adult partake in flexibility exercises?
at least 2 days a week
Moderate physical activity
brisk walking, dancing, swimming, cycling, and yard work
Overtrained
caused by training too much or too intensely, characterized by lack of energy, decreased physical performance, and aching muscles and joints
How does one develop cardiovascular endurance?
continuous rhythmic movements of large-muscle groups in activities such as walking, jogging, cycling, swimming, and aerobic dance
Periodization
cycle training where you can train lightly one day and harder the next
Progress phase
fitness increases
Behavior
getting enough physical activity to stress the body and cause long-term physiological changes
What related physical functions improve as cardiorespiratory endurance improves?
the heart pumps more blood per heartbeat, resting heart rate slows, blood volume increases, blood supply to tissues improve, the body can cool itself better, resting blood pressure decreases, metabolism in skeletal muscle is enhanced which improves fuel use
Body composition
the proportion of fat and fat-free mass in the body
Metabolism
the sum of all the vital processes by which food energy and nutrients are made available to and used by the body
Maintenance phase
the targeted level of fitness is sustained over the long term
Reversibility
the training principle that fitness improvements are lost when demands on the body are lowered
Ectomorph
thin and linear
Exercise
planned, structured, repetitive movement intended specifically to improve or maintain physical fitness
Progressive Overload
progressively increasing amounts of stress on the body causes adaptation that improves fitness
How does one develop muscular strength and endurance?
resistance training in activities such as push-ups, planks, and curl-ups
Why should someone warm up before a work out?
increases muscle temperature, reduces joint stiffness, bathes the joint surfaces in lubricating fluid, and increases blood flow to the muscles
Graded exercise test
starts at an easy intensity and progresses to maximum capacity
How does one develop flexibility?
stretching the major muscle groups regularly and with proper technique
Exercise stress test
test usually administered on a treadmill using an EKG to analyze changes in electrical activity in the heart during exercise
Muscular Endurance
the ability to resist fatigue and sustain a given level of muscle tension; to hold a muscle contraction for a long time or to contract a muscle over and over again
Physical Activity
movement that is carried out by the skeletal muscles and requires energy
Fat-free mass
muscle, bone, and water
HITT
short bouts of high intensity exercise followed by rest
Physical Training
performance of different types of activities that cause the body to adapt and improve its level of fitness
What is the difference between physical activity and exercise?
physical activity- improves health and wellness exercise- improves fitness
Skill-Related Performance
physical capacities that contribute to performance in a sport or an activity, including speed, power, agility, balance, coordination, and reaction time
What does FITT stand for?
Frequency Intensity Time Type
How does one develop healthy body composition?
sensible diet and a program of regular exercise
What are the 5 components of health-related fitness?
1. cardiorespiratory endurance 2. muscular strength 3. muscular endurance 4. flexibilty 5. body composition
How many calories does a moderate amount of activity use?
150 calories of energy
How many minutes should adults exercise a week?
150 minutes of moderate-intensity aerobic physical activity or 75 minutes of vigorous-intensity aerobic physical activity
How many days a week should an adult partake in muscle-strengthening activities that are moderate or high intensity?
2 or more days a week
How many days a week should an adult partake in balancing exercises?
2-3 days per week (yoga, tai chi)
How long should an adult partake in high intensity exercise?
20-30 minutes
How long should an adult exercise their cardiorespiratory endurance?
20-60 minutes per session
For additional health benefits, how many minutes a week should an adult exercise?
300 minutes of moderate-intensity aerobic physical activity or 150 minutes of vigorous-intensity aerobic physical activity
How much can the body's ability to transport oxygen be improved through training?
5-30%
What are three phases to an exercise program?
Beginning, progress, and maintenance
Sarcopenia
Older people tend to experience a decrease in both number and size of muscle cells
Beginning phase
body adjusts to the new type and level of activity
Vigorous physical activity
jogging, kayaking, cross-country skiing, backpacking
Mesomorph
lean and muscular
Neuromuscular Fitness
maintaining performance levels of balance, agility, coordination, and gait through the control of muscles and movement by the brain and spinal column
What does relative risk of death mean?
risk of death per year of sedentary people compared to people in various activity levels
Endmorph
round and pear shaped