L. Chen, E.A. Selimovic, M. Daunis, T.A. Bayers T, L.J. Vargas, I.T. O’Brien, C.B. McEnroe, A.E. Kozerski, A.C. Vanhoover, W.D. Gray and J.F. Caruso
-impulse device evoked large and significant gains in left leg’s calcaneal bone mineral content (+29%) and density (+33%), as well as a significant decline in osteoclast activity ( Caruso et al., 2018 ). Such results hold much promise, as the calcaneus incurs among the largest in-flight losses that are exacerbated by heightened osteoclast activity (Heer et al. 2005; LeBlanc et al., 2007 ).
The high-speed high-impact device, called an InertialExerciseTrainer (IET; Impulse Technologies, Newnan, GA), has a mass sled that traverses its 1.9-m track parallel to the Earth