Volunteer Opportunities

The Muscle Biology and Imaging Lab at the University of Massachusetts Amherst regularly seeks individuals to participate in research studies. View current volunteer opportunities.

Awards and Honors

View awards and honors received by MBIL graduate students.

MBIL Alumni

Doctoral students from the Muscle Biology and Imaging lab have gone onto prestigious positions at top research institutions across the country. View our alumni.

Department and College

Ryan Callahan, B.S.

Research Assistant
(413) 577-4703

I was an undergraduate student in the Kinesiology department at the University of Massachusetts. I have been active in the Muscle Biology and Imaging Laboratory since 2008 and have worked on the STOMP study (the effect of satins on muscle performance) and the White Blood Cell study (to examine gene expression in white blood cells). Currently I am a staff member on the Smoking study, which is investigating the effects of smoking on the molecular mechanisms of skeletal muscle repair after eccentric exercise and the STOMP study. I plan to attend graduate school for physical therapy and continue to be active in the health research field. 

Prior to UMass, I attended Northern Essex Community College and Fitchburg State College where I studied Clinical Exercise Science. I also played baseball as a collegiate athlete at all three schools.

Muscle Response Research

Activation of NF-kb in cells outside the myofiber boundary, 3h following eccentric exercise (ECC). A. Confocal images of triple stained 10µm sections from a representative ECC sample for dystrophin (dys=blue), the p-65 subunit of NF-kb (p65=green) and nuclei (topro3=red). White square in merged image denotes the boundaries of the inset image. Scale bar in top 3 images and merged image = 20µm; scale bar in inset image = 10µm. Read the abstract.

Resistance Exercise and Cancer

Dr. Clarkson's research on resistance exercise during breast cancer treatment is featured in Medical Hypothesis, a journal of theoretical papers in the biomedical sciences. Read the abstract.


Rhabdomyolysis is a serious, potentially life-threatening condition that can develop unexpectedly under supervised conditions. Dr. Clarkson's 2009 paper in The Journal of Strength and Conditioning Research examines a case of rhabdomyolysis in a healthy, fit 18-year-old placekicker following a supervised practice session led by the team's strength and conditioning coach. Following eight days of hospitalization with intravenous fluids, the patient recovered without complications. View the full abstract.