Which of the following is not a common cause for exercise-related injury?

Ryan is a nine-year-old boy whose father wants him to be a soccer player. ryan does not have an aptitude for soccer, and keeps failing miserably at it. his father criticizes him in an attempt to motivate ryan to play better. as per erickson’s psychosocial theory, what is a likely consequence of this criticism? a. ryan may start developing an interest in soccer. b. ryan may develop a respect for his father. c. ryan may develop an inferiority complex. d. ryan may excel at soccer. e. ryan may gain self-esteem.

Mary is 14 year old her resting heart rate is 70 beats per minute. calculate 50% of mary's maximum heart rate to fine her target heart rate

The first step in treating water from a river or lake is usually