Question

(02.03 mc)
tim is a competitive athlete who wants to improve his speed and performance as a sprinter, so he should exercise at ______ heart rate.
a 50 - 60
b 60 - 70
c 80 - 90
d 90 - 100
pregunta 8 (3 puntos)
(02.03 lc)
the ability to exercise your entire body for a long time without stopping is called
a cardiorespiratory endurance
b cardiorespiratory warm - up
c recovery phase
d respiration
pregunta 9 (3 puntos)
(02.03 lc)
a pulse oximeter is a type of heart rate monitor that
a attaches to the finger and is commonly used in hospitals
b can provide readings whether resting or exercising
c must be damp or have conductive gel for an accurate reading
d uses a phones camera and flashlight to interpret blood flow

Explanation:

• For the first question, sprinters need high - intensity training, which corresponds to a high percentage of maximum heart rate (90 - 100%).
• For the second question, cardiorespiratory endurance is the ability to exercise the whole body for a long time without stopping.
• For the third question, a pulse oximeter is a device that attaches to the finger and is commonly used in hospitals to measure oxygen saturation and heart rate.

Answer:

1. d. 90 - 100
2. a. cardiorespiratory endurance
3. a. attaches to the finger and is commonly used in hospitals