Question

Diya went to sports training centre for the first time. Her coach informed her that participation in sports not only promotes physical growth but also has social and psychological benefits. He highlighted numerous physical benefits for muscles, heart and respiratory systems. He advised her to continue daily practice to improve her health related and skill related fitness.

Answer the following questions based on the above case and your prior knowledge:

1. Which is not a long-term effect of exercises on the muscular system?
   1. Hypertrophy of muscle
   2. Increase in glycogen stored
   3. Ligament and tendon strengthen
   4. Accumulation of lactate
2. What is cardiac output?
3. Choose the correct statement related to tidal volume:
   1. Amount of air inhaled and exhaled in one breath.
   2. Amount of air inhaled in one breath.
   3. Amount of blood pumped out by heart in one stroke.
   4. Amount of air exhaled in one breath.
4. Lactic acid tolerance relates to ______.
   1. Strength
   2. Speed
   3. Flexibility
   4. Endurance

Answer 1

1. Accumulation of Lactate
   Explanation: Lactate accumulation during intensive exercise is not a long-term adaptation.
2. Cardiac output is defined as the amount of blood that the heart pumps in one minute. The calculation is based on the product of heart rate (beats per minute) and stroke volume (amount of blood pumped in a single pulse).
3. Amount of air inhaled and exhaled in one breath.
   Explanation: Amount of air inhaled and released in a single breath.
4. Lactic acid tolerance relates to endurance.
   Explanation: Lactic acid tolerance is linked to endurance, indicating the body's ability to maintain continuous exercise without tiredness.