PED-110 Unit 2
What is included in the core muscles?
Abdomen, pelvic floor, sides of the trunk, back, buttocks, hips, and pelvis
What is the best description for isometric exercise?
Applying force without a change in the length of the muscle.
What is the focus of dynamic stretching?
Functionally based movements
Which problem causes the brain's temperature regulatory center to fail?
Heat stroke
Which of the following is one factor that determines flexibility?
Heredity
How is maximal oxygen consumption (VO2max) defined?
Highest rate of oxygen consumption that an individual is capable of during maximum physical effort
Which is a definition of hypertrophy?
Increase in muscle fiber size
Which is the most important exercise factor for achieving improvements from exercise?
Intensity
Which structures absorb and disperse stress on the spine?
Intervertebral disks
Which defines atherosclerosis?
It is thickening of artery walls by deposit of fatty substances.
Which activities predominantly use slow-twitch muscle fibers?
Walking and jogging
Which describes a muscle fiber?
an individual muscle cell
What is an arrhythmia?
an irregular heartbeat
Which is the largest artery in the body?
aorta
What is the state of the heart during systole?
contracting
Which cholesterol profile would place someone at greatest risk for heart disease?
low HDL and high LDL
How long does the nonoxidative energy system typically provide energy?
10-120 seconds
Which stretching technique do experts recommend for general fitness?
Static stretching
Which blood pressure readings for an adult would cause a diagnosis of hypertension?
140/96 (because over 130 or over 80 causes a diagnosis).
What is the MINIMUM number of training days per week for gaining strength?
2
According to The American College of Sports Medicine, how many days a week should one perform stretching exercises?
2 or 3
How many repetitions of a stretch are needed in each session to improve flexibility over time?
2 to 4
What is the recommended amount of resistance and number of repetitions for building muscular strength rapidly?
80% RM; 1 to 5 repetitions
What is the definition of adenosine triphosphate (ATP)?
Basic form of energy used by cells
During which type of contraction does a muscle lengthen as it contracts?
Eccentric
What are the two principal types of connective tissue in a muscle?
Elastin and collagen
What characterizes slow twitch muscle fibers?
Fatigue resistance
What is one likely outcome of good flexibility?
Lower risk of sport injury
Which organ is part of the cardiorespiratory system?
Lungs
How is muscular strength assessed?
Measuring the most force a muscle can produce in one effort
Which is a good resistance training technique for developing explosive strength?
Plyometrics
What is the definition of congestive heart failure?
a condition resulting from the heart's inability to maintain its regular pumping force
What occurs when a coronary artery is completely blocked?
a heart attack
Which problem does blockage of blood supply to the brain cause?
a stroke
What is the leading cause of death in the United States?
cardiovascular disease (CVD)
What are the six major risk factors for cardiovascular disease that people can change?
elevated cholesterol levels, tobacco use, high blood pressure, obesity, physical inactivity, and diabetes
Which of the following cardiovascular disease (CVD) risk factors are NOT modifiable?
family history of CVD
Which circulation system is on the right side of the heart?
pulmonary
What is the most common site of back pain?
the lumbar area
Which is one of the functions of the cardiorespiratory system?
transport nutrients
