Which of the following aerobic activities has the highest impact on the joints?
a. cycling
b. swimming
c. running
d. walking user: special needs issues include all of the following except:
a. mental 6 issues
b. developmental issues
c. medical issues
d. athletic issues

1. I believe the answer is: C. running

An activity tend to has a high impact of joint if it includes a certain level of collision between the join and hard surfaces for a long period of time. When we run, the impact happened between the joints in our knees and ankles with the grown everytime we took as step.

2. I believe the answer is: D. athletic issues

Special needs issues refers to the problem that created due to a certain defect in our genetic composition or any form of maltreatment. Athletic issues tend to happen only because we are injured or by using a wrong posture to make athletic movements.

answer leukemia,lymphoma,aplastic anemia;