Stair-Stepping: Rehabilitation implications of stepper exercise technique on exertion and hip extensor muscle activation
".....This study evaluated which of two different stair-stepping techniques
produced a higher level of perceived physical exertion and whether
magnetic resonance imaging (MRI) can identify gluteus maximus activation
during stepper exercise and/or differences in gluteus maximus
activation between exercise techniques. The study was a prospective,
single-blind, randomized, two-period, crossover trial. The
stair-stepping techniques were 15-minute sessions of (1) short steps
with arms unsupported (Short) or... full steps with arms supported
(Full).......Back extension is a coupled action that involves the back and hip
extensors .... In this study, we focused our assessment on the gluteus
maximus because the activation of this muscle has been studied during
stepper exercise with EMG .... and because this muscle is a crucial link
in the transfer of forces from the legs to the back.....Stepper exercise appears to be a dual-purpose training modality that may
be useful for low back pain rehabilitation because of its perceived
increased training demand and its biomechanically based capacity to
induce gluteus maximus metabolic activation......"
Quelle: http://www.rehab.research.va.gov/jour/08/45/1/Marin.html
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