You need to know the rules and where is it going to be at. What kind of fitness program. Who is it going to be for?
From the context of the question, I am going to say placebo. This is me assuming, however, that both groups were told that their drinks had the protein powder
Answer:
The activities required when playing volleyball strengthen the upper body, arms, shoulders, thighs, abdominals, and lower legs. In addition, volleyball improves hand-eye coordination, reflexes, and balance. Last but not least, volleyball teaches teamwork and communication and is a great social activity
Answer:
individuals who are working part-time but would prefer to be working full-time
That is not really true. The range is actually V00-X99