Mindfuless in Sports

My daughter, an 8th grader and 19 hr. / week club gymnast level 9, is wanting to explore the topic of the impact of Mindfulness in Sports, namely gymnastics, for her Science Project. Anyone able to direct me to some research for her to consider for her lit review?

Also, needing a simple pre-post survey for her team mates regarding stress and focus.

Thanks for any help!
T. from MN

marytheresa.schmitz@isd728.org