John H. Hollman, Ph.D.

The purpose of this study is to examine whether performing the hip hinge exercise with specific tactile cueing and applied resistance methods enhances gluteus maximus recruitment while minimizing hamstring recruitment.

The purpose of this study is to:

• Examine, cross-sectionally, whether attitudes toward research and statistics differ across students enrolled in the 1st-year, 2nd-year and 3rd-year cohorts from the Program in Physical Therapy, Mayo Clinic School of Health Sciences. 
• Examine longitudinally through a prospective, repeated-measures design, whether attitudes toward research and statistics change among students enrolled in the Class of 2020 as they progress through the 1st, 2nd and 3rd years in the program of study.

The purpose of this study is to examine whether inter-joint hip and knee coordination differs during single-limb squat movements following a fatiguing protocol of the gluteus maximus.

The purpose of this study is to see if specific verbal and tactile cues and instructions help people who are performing bridging exercises to improve recruitment of the gluteus maximus muscle and minimize hamstring use.

Can participants enhance gluteus maximus recruitment during a single-leg squat test following a neuromuscular training program?

The purpose of this study is to establish arthrogenic muscle inhibition (AMI) as a neural mechanism by examining the bilateral neuromotor drive of thigh musculature from AMI progression after anterior cruciate ligament (ACL) injury. The study will also determine the inhibitory effect of aberrant proprioceptive afferents on quadriceps and hamstring motor output. Furthermore, this study will determine the efficacy of neurofeedback to induce central changes that provide peripheral benefits to muscle activation.

The purpose of this study is to examine test-retest reliability of measurements obtained with cross recurrence quantification analysis with respect to (A) dynamic hip-knee motion coupling patterns and (B) gluteus maximus-gluteus medius EMG recruitment coupling patterns during single-limb step-downs.