The answer is no. Anxiety can be helpful for performance in sport. According to the inverted-U hypothesis, you get maximum performance levels in sport when you have an intermediate (moderate) level of anxiety (or stress, arousal, energy level). You get poor sports performance with the extremes of arousal, with comatose at one end, and panic attack at the other. So the goal is not to be calm (or comatose) and the goal is not to be too juiced-up (or have a panic attack)- the goal is to have a moderate level of arousal (stress, anxiety, energy) to get maximum sports performance.
