myosthenometer

my·o·sthe·nom·e·ter

(mī'ō-sthĕ-nom'ĕ-ter),
An instrument for measuring the power of muscle groups.
[myo- + G. sthenos, strength, + metron, measure]

myosthenometer

(mī″ō-sthĕ-nŏm′ĕ-tĕr) [″ + sthenos, strength, + metron, measure]
Device for measuring muscle power.