In this study, we want to learn more about young adults with a history of concussion and their relationship with stress and mindfulness. This will help us to create concussion prevention and rehab plans to improve recovery.

We want to understand why sedentary behavior (e.g., sitting too much) is bad for the heart and the brain. We also want to test ways to reduce sedentary behavior. This will help us to create a large clinical trial to test whether reducing sedentary behavior can decrease cardiovascular disease.

In this study, we want to learn more about brain and body outcomes in young adults with and without a history of a concussion from a sport. By learning more about you and your lifestyle, it will help us to inform how we help and rehabilitate sport-related concussions in young adults.

In this study, we want to learn more about mental health stigma and resource utilization. We also want to learn how stigma affects attitdues towards mental health and mental health resources in collegiate athletes.

Individuals with a history of anterior cruciate ligament (ACL) injury and have had an ACL reconstruction (ACLR) are at a greater risk for developing osteoarthritis. The greater risk for developing osteoarthritis is likely caused by too little force or physical activity applied to the knee during weightbearing tasks such as walking. To reduce this decrease in forces during walking following an ACLR, we must first develop effective treatments that can train a person to walk in a way that reduces their risk of developing osteoarthritis. The purpose of this research study is to determine the feasibility and the initial effects of a 6-week training program designed to improve walking mechanics of individuals with an ACL reconstruction.

In this study, we want to learn more about mental health stigma and mental health history. We also would like to learn about how these factors affect a person's willingness to participate in therapy.

There are 3 different non-invasive devices that are used to test how stiff your arteries are. We want to learn if these devices give us similar measurements. This will allow us to compare data across different devices, which will assist with future research.

The purpose of this study is to learn more about how people feel about staying safe during sports and concussion safety. This study will focus on participants who identify with underrepresented racial and ethnic backgrounds.

The objectives of this study are to determine: 1) the time course of changes in walking movement and physical activity following anterior cruciate ligament (ACL) injury and up to 12 months after ACL reconstruction (ACLR); 2) the associations between walking movement and physical activity with knee joint health outcomes and self-reported knee function up to 12 months after ACLR. *This study is a collaboration with the UNC Sports Medicine Institute*

People who suffer ACL injuries are at an increased risk for knee osteoarthritis, which can lead to chronic pain and disability. In this study, we want to learn if adding vibration to rehabilitation following ACL reconstruction surgery can improve how your joints move while walking. We also want to learn if this vibration can improve how your muscles work and your quality of life compared to rehabilitation alone. *This study is a collaboration with the UNC Sports Medicine Institute*