Soc 19: Short Term Effects Of Excercise

Question 1

Effects on the Muscles:

Answer 1

• Muscle fatigue is when you excercise, your muscles can feel weak painful and tired.
• This occurs as a result of anaerobic (no oxygen) respiration
• If there is no oxygen avalible for respiration we produce lactic acid, this process is known as lactate accumalation
• Cramps are a severe sort of muscle fatigue, which causes the muscles to
  contract in a pain full way.

Question 2

Effect on the Heart:

Answer 2

• When you exercise your heart beats faster - your heart rate is the
  number of times your heart beats per minute.
• A trained athlete is also more likely to have a quicker recovery rate after
  exercise
• Stroke volume is the amount of blood pumped by the heart during each
  beat. This will increase during physical activity as the muscles will
  require more blood.
• Cardiac output is the amount of blood pumped by the heart in one min.

Question 3

Effects on the respiratory system:

Answer 3

• When you exercise you need to bring in more oxygen and get rid of
  more carbon dioxide.
• Therefore as you exercise the depth and rate of your breathing
  increases.
• When you exercise hard, you use up more oxygen than you take in. This
  shortfall creates oxygen debt.

Question 4

Muscles Fatigue

Answer 4

When muscles get tired

Question 5

Lactate accumalation

Answer 5

when lactic acid gather in the muscles/ blood due to increased work intensity.

Question 6

Heart Rate

Answer 6

a number of times the heart beats per minute.

Question 7

BMP

Answer 7

Beats per minute

Question 8

Stroke volume

Answer 8

the amount of blood pumped by the heart during each beat.

Question 9

Cardiac output

Answer 9

the amount of blood ejected from your heart in one minute. CO = stroke volume (SV) x heart rate (HR)

Question 10

Oxygen debt

Answer 10

The amount of oxygen needed at the end of physical activity to break down any lactic acid.