Zero Conditional:
1) If you do sport, you feel healthy.
2) When you play football, you don't use your hands.
3) If you are an athletic person, you don't smoke.
4) When you play tennis, you use a tennis racket.
Second Conditional:
1) If I were you, I would do some sport.
2) If I ran in the morning, I would be in a good shape.
3) If I played basketball very well, I would win this competition.
4) If he was my coach, I would be the best athlete in Russia.