Sports Drinks

Question 1

After what time may performance impaired?

Answer 1

1 hour

Question 2

What are the 2 factors leading to early fatigue?

Answer 2

1. Depletion of carb stores

2. Onset dehydration (water and electrolyte loss in sweat)

Question 3

What should sports drinks contain?

Answer 3

Water
CHO
Electrolytes

Question 4

What is osmolarity?

Answer 4

Estimation of osmolar concentration., proportional to number of particles per kg of solvent

Question 5

In physiological terms, osmotic pressure of particles in body
fluids. How is this often expressed?

Answer 5

mOsmol/kg

though Systeme Internationale
(S.I.) unit is mmol/kg).

Question 6

What does the osmolarity of the human body tissues reside at?

Answer 6

300 mmol.kg-1

Blood osmolality can range from between 275 to 295 mmol/kg.

Question 7

What is a solution LOWER than 300 mmol.kg-1 is

called?

Answer 7

HYPOosmotic

Question 8

What is a solution HIGHER than 300 mmol.kg-1 is

called?

Answer 8

HYPERosmotic

Question 9

What is a solution that is the same as 300 mmol.kg-1 is

called?

Answer 9

ISOosmotic

Question 10

What are 2 thing that the osmolarity of a drink influence?

Answer 10

gastric emptying

Intestinal water influx

Question 11

Osmolarity is often missing on sports drinks information.

What is often mentioned instead?

Answer 11

Tonicity

(has no units and is a comparative term that predicts changes
in cell volume at equilibrium after exposure of a cell to a solution.)

Question 12

What device is used to measure osmolarity?

Answer 12

Osmometer