Question

what role does nutrition play in influencing body composition?
a. it has no impact on body composition.
b. it only contributes to weight gain
c. it decreases muscle mass
d. it provides essential nutrients required for muscle growth, repair, and overall well - being
what does the bia method primarily measure to estimate body fat percentage?
a. skin thickness
b. bone density
c. body’s resistance to a small electrical current
d. muscle mass

Explanation:

First Question:

• Option a is wrong as nutrition does impact body composition.
• Option b is wrong as nutrition isn't only for weight gain (e.g., it helps in muscle growth too).
• Option c is wrong as proper nutrition supports muscle mass, not decrease it.
• Option d is correct as nutrition provides nutrients for muscle growth, repair, and overall health which influences body composition.

• Option a: Skin thickness is measured in methods like skinfold calipers, not BIA.
• Option b: Bone density is measured by DEXA scans, not BIA.
• Option c: BIA (Bioelectrical Impedance Analysis) works by sending a small electrical current through the body and measuring the body's resistance to it (since fat, muscle, etc. have different electrical conductivities).
• Option d: BIA estimates muscle mass indirectly through resistance but primarily measures resistance to the electrical current.

Answer:

d. It provides essential nutrients required for muscle growth, repair, and overall well - being

Second Question: