Key result
Hindlimb unweighting by tail suspension rapidly decreased soleus muscle myofibril protein from 34.3 mg/pair in controls to 6.9 mg/pair at 56 days.
Population
Adult rodents
Comparison
Hindlimb unweighting by tail suspension for 4… vs Control group
Design
Preclinical
Follow-up
Up to 56 days of suspension and 28 days of recovery
Authors
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Unweighting models require human validation before clinical use; leaves open isoform-specific contractile protein regulation in disuse.
Absolute Event Rate: 6.9% vs 34.3%
Loss of weight bearing specifically affects the mechanisms of contractile protein expression in soleus muscle, with differential effects on myosin isoforms.
Thomason et al. (1987) studied Muscle atrophy. Hindlimb unweighting by tail suspension vs. Control group was evaluated on Soleus muscle myofibril protein content. Hindlimb unweighting by tail suspension rapidly decreased soleus muscle myofibril protein from 34.3 mg/pair in controls to 6.9 mg/pair at 56 days.
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