EXE 234 - Heart Rate Lab

What is Cardiorespiratory fitness?

• Cardiorespiratory fitness refers to the ability of the circulatory and respiratory systems to supply oxygen to the muscles during sustained physical activity.

• Cardiorespiratory fitness is the ability of the digestive system to break down food efficiently.

• Cardiorespiratory fitness is the capacity of the nervous system to transmit signals rapidly.

• Cardiorespiratory fitness is the ability of the skeletal system to support the body during movement.

What does cardiorespiratory fitness reflect in terms of functional capabilities?

• The efficiency of the heart, lungs, and vascular system

• The strength of individual muscles

• The flexibility of joints

• The speed of muscle contraction

What is one of the primary functions of the cardiovascular system?

• To deliver nutrients to and remove metabolic waste products from the tissues

• To assist with digestion

• To produce energy

• To store fat

The cardiovascular system assists with the maintenance of normal function at rest and during exercise. Which of the following is NOT a function it assists with?

• Temperature

• Fluid balance

• Digestion

• Hormones

Oxygen is required during submaximal activities because:

• It helps in the breakdown of glucose for energy.

• It is needed for muscle contraction.

• It prevents dehydration.

• It regulates body temperature.

What are the short-term and long-term effects of poor cardiorespiratory health?

• Increased risk of heart disease and reduced stamina

• Improved lung capacity and better endurance

• Enhanced mental clarity and reduced stress

• Stronger immune system and faster recovery

What is the primary function of the heart?

• Site of respiration

• Pumps blood

• Carries blood

What is the primary function of the lungs?

• Pumps blood

• Site of respiration

• Carries blood

What is the primary function of the vascular system?

• Pumps blood

• Site of respiration

• Carries blood

Fill in the blank: The lungs are responsible for oxygen uptake and _________.

• Carbon dioxide removal

• Nitrogen absorption

• Oxygen storage

• Protein synthesis