Fitness
Which of the following are components of an aerobic exercise program?
exercise frequency, exercise intensity, and exercise duration.
Regular aerobic activity improves the efficiency of the heart by
increasing the amount of blood pumped with each heartbeat.
Which of the following correctly describes isometric muscle action
involves a contraction that does not accompany movement
Which method of resistance is least likely to produce significant strength gains?
Body weight resistance
A target heart rate of _____percent of maximum is sometimes called the "controversial level of exercise"
70 percent
What is osteoporosis?
A disease characterized by low bone mass and deterioration of bone tissue, which increase risk of fracture.
Which statement best summarizes the association between exercise and improved immunity?
Brisk exercise temporarily increases WBC (White Blood Cells) to boost immunity.
What is concentric muscle action?
Concentric muscle action occurs when the muscle shortens and moves a joint.
What is Pilates?
Exercise programs that combine stretching with movement against resistance, aided by devices such as tension springs and heavy bands.
What is eccentric muscle action?
Force produced while the muscle is lengthening.
What is concentric muscle action?
Force produced while the muscle is shortening.
What is Hypertrophy?
Increased size (girth) of a muscle.
How does exercise improve weight control?
It increases metabolic rate.
How does aerobic exercise affect the circulatory system?
It increases the number of capillaries supplying oxygen to the working skeletal muscles, it makes the heart more efficient so it can pump more blood with fewer beats per minute, and it increases HDL (high-density lipoproteins) levels in the bloodstream.
Which is true about target heart rate?
It is a percentage of your maximum heart rate
How does aerobic exercise affect the musculoskeletal system?
It strengthens muscle and bone tissue by increasing the demands placed upon them.
Which of the following is known as "bad' cholesterol?
Low density lipoproteins.
What is hypothermia?
Potentially fatal condition caused by abnormally low body core temperature.
Which best describes a way to assess strength in a resistance exercise program?
Start with a low weight and add 5-10 pounds until you can no longer complete a successful lift.
What are the principles included in a resistance exercise program?
Tension, Overload Principle, Specificity-of-Training
What is muscular strength?
The amount of force that a muscle is capable of exerting or resisting.
How does resistance training strengthen muscles?
These muscles undergo microscopic tears during training and then rebuild during the next 24-48 hours forming skeletal muscles with greater size and strength.
Which of the following correctly describes a benefit that accompanies improved flexibility?
They include stress management, greater range of muscle and joint motion, and decreased back pain.
What is the goal of stretching?
To train muscles to reduce their resistance to tension
How does aerobic exercise affect bone density?
Weight-bearing exercises like running and jumping increase bone density.
Overtraining syndrome occurs when
engage in systematic and progressive increases in training without enough rest and recovery
Which of the following is another way to say aerobic exercise?
With oxygen
Exercise can improve mental health by
burning off chemical by-products of the stress response.
What is flexibility?
measure of the range of motion, or the amount of movement possible, at a particular joint.
The amount of force that a muscle is capable of exerting is referred to as
muscular strength.
The principle of resistance training that suggests that muscles should be gradually required to do more than they are used to doing is
overload
The most important of the key principles for improving muscular strength is the:
overload principle.
To develop muscular endurance, you should:
perform relatively more repetitions using a certain resistance
Walking to class or up a flight of stairs would be examples of
physical activity
The ability to perform regular moderate to rigorous physical activity without great fatigue is called:
physical fitness.
Your heart is a muscle that is made up of highly specialized ___.
tissue