Exam 5: Flexibility and Low-Back Health

Girls gain how much of their adult bone mass by age 18?

Which statement describes an appropriate goal for flexibility?

According to The American College of Sports Medicine,how many days a week should one perform stretching exercises?

A stretch should be held in position for a minimum of 45 seconds.

Nerve roots in the spine are the key component of intervertebral disks.

Which benefit can stretching provide?

What are the five regions of the spine?

Upon which does static flexibility depend?

Exercise can help prevent and manage low-back pain.

Describe the underlying causes of low-back pain.Discuss at least three risk factors.

List at least four benefits of flexibility,and describe how developing flexibility provides each benefit.

Describe at least three factors that determine the flexibility of a joint.

Which stretching technique do experts recommend for general fitness?

Which stretching technique is most commonly associated with injury?

Describe the basic structure of the spine.Include information on the vertebrae,intervertebral disks,and nerve roots.

Which is a disadvantage of active stretching?

What determines flexibility?

What are the two principal types of connective tissue in a muscle?

In active stretching,an outside force or resistance assists muscles and joints as they move through a range of motion.

Which structures absorb and disperse stress on the spine?