Fat Burning Applied Techniques 4

Question 1

What is the role of the enzyme hormone-sensitive lipase (HSL) in fat burning?

Accepted Answer

It breaks down stored triglycerides into free fatty acids for use as fuel (lipolysis)

Answer

HSL is the primary enzyme responsible for lipolysis — breaking down stored triglycerides into glycerol and free fatty acids that can be released into the bloodstream and oxidized.

Question 2

Which sleep-related behavior has the STRONGEST evidence for increasing fat mass and impairing fat loss?

Accepted Answer

Consistently sleeping fewer than 6 hours per night

Answer

Chronic sleep restriction elevates cortisol and ghrelin, suppresses leptin, and reduces insulin sensitivity, creating a hormonal environment that promotes fat storage and impairs fat oxidation.

Question 3

In the context of fat loss, what is 'spot reduction' and what does the research say about it?

Accepted Answer

The scientifically debunked idea that exercising a specific muscle burns the fat directly surrounding it

Answer

Decades of research consistently shows that fat loss is systemic — your body draws from fat stores throughout the body, not preferentially from the area being exercised.

Question 4

Which cardiovascular training zone (approximate % of max heart rate) is sometimes called the 'fat-burning zone' and why is this label misleading?

Accepted Answer

60–70% MHR, because while fat is a larger proportion of fuel used, total caloric and fat expenditure is lower than at higher intensities

Answer

The 60–70% MHR zone uses a higher fat percentage per calorie burned, but total fat calories burned are often less than at higher intensities due to lower overall energy expenditure.

Question 5

A trainer recommends 'active recovery' days between intense training sessions. How do these days contribute to fat loss?

Accepted Answer

Light activity on recovery days adds to weekly caloric expenditure while promoting circulation and reducing fatigue without impeding recovery

Answer

Low-intensity movement on recovery days burns additional calories, primarily from fat, and promotes recovery without causing further muscular damage.

Fat Burning Practice Test

Fat Burning Practice Test

Fat Burning Applied Techniques 4