The purpose of this study is to quantify differences in Achilles subtendon morphology between people in a group of uninjured young adults and those with partial thickness Achilles tendinopathy.

In this study, we want to learn if we can measure how much energy you spend while walking through a video-based motion detection system. We think this could be helpful to identify people who may benefit from rehabilitative therapies or wearable devices to make movement easier in our daily lives.

Are you interested in how changes in shoes and footwear can be used to make improvements to day-to-day life? You may be able to participate in a research study to quantify the biomechanical effects of different footwear on walking. Compensation provided.

The purpose of this study is to quantify age-related differences in neuromuscular and postural control during and after 30-minute walking.

Do you wonder about your mobility as you age? You may be eligible to participate in a research study investigating age effects on foot-ankle mechanical power interactions with the goal to enhance foot and ankle function in aging and mobility. Compensation provided.

The purpose of this study is to investigate how aging affects the structure and function of the feet during walking.

This study aims to characterize how gait mechanics are altered when the neck is immobilized or an excessive curve of the spine is induced via a 3D printed neck collar.

With age, it becomes more and more difficult to balance during movements such as walking. Successful balance in the community requires muscles to perform corrective actions. However, the specific features of that neuromuscular control most relevant to balance, including changes that may contribute to falls as we get older, remain unclear. The purpose of this research study is to quantify which specific features of neuromuscular control during walking represent a constraint on older adults' ability to successfully respond to balance challenges and thereby prevent falls.

As age increases, the risk of falling also does. When faced with balance challenges, the muscular and neurological responses allow for correcting balance. These responses differ when a person expects or does not expect to slip or trip.

Do you have pain due to knee osteoarthritis? You may be eligible to participate in a research study to find out how pain and weakness due to knee osteoarthritis affect muscle function and inflammation. Compensation provided.