Which row of the table correctly identifies the physiological adaptations that are the result of training slow twitch muscle fibres?
| Muscle size | Capillary supply | Rate of fatigue | Oxidative capacity |
|-------------|------------------|----------------|--------------------|
| A - HSC - SSCE Personal Development and Physical Education - Question 20 - 2024 - Paper 1
Question 20
Which row of the table correctly identifies the physiological adaptations that are the result of training slow twitch muscle fibres?
| Muscle size | Capillary suppl... show full transcript
Worked Solution & Example Answer:Which row of the table correctly identifies the physiological adaptations that are the result of training slow twitch muscle fibres?
| Muscle size | Capillary supply | Rate of fatigue | Oxidative capacity |
|-------------|------------------|----------------|--------------------|
| A - HSC - SSCE Personal Development and Physical Education - Question 20 - 2024 - Paper 1
Step 1
Identify the correct adaptations
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Answer
To determine the correct row for slow twitch muscle fibres, we need to recognize their characteristics:
Muscle Size: Slow twitch fibres are typically smaller in size compared to fast twitch fibres, as they are designed for endurance rather than bulk.
Capillary Supply: Slow twitch fibres have a high capillary supply. This is crucial for delivering oxygen efficiently, which is essential for prolonged activities.
Rate of Fatigue: These fibres are designed to resist fatigue, meaning they have a low rate of fatigue. This allows for sustained, extended use during aerobic activities.
Oxidative Capacity: Slow twitch fibres possess a high oxidative capacity, which enables them to utilize oxygen effectively for sustained energy production.
Based on these characteristics, the correct answer is A: Small muscle size, high capillary supply, low rate of fatigue, and high oxidative capacity.