Tennis leg is a tear or rupture of
the plantaris muscle and possibly the medial head or inside of the gastrocnemius muscle which is the larger of the two calf muscles.
Tennis leg is a general term used to describe pain in the leg caused by a tear of the inner head of the big calf muscle,
the plantaris muscle or sometimes both.
In this study in rats, a «synergist ablation» overload model was used, where the gastroc and soleus muscles on the right hindlimb were surgically removed, overloading and activating growth in
the plantaris muscle.
For morphometric analysis, the gastrocnemius and
plantaris muscles were sectioned serially to their widest point using a cryostat, and fiber diameters were measured (as the shortest distance across the fiber passing through the midpoint) from hematoxylin and eosin stained sections.
To determine whether the same is true for the additional muscle mass seen upon introduction of the F66 transgene, I carried out morphometric analysis of the gastrocnemius /
plantaris muscles.
Initially resistance band plantar flexion exercises should be done to very gradually introduce some load onto the calf and
plantaris muscles.
Not exact matches
Hence,
muscle fiber hyperplasia and hypertrophy appear to contribute roughly equally to give the overall doubling of gastrocnemius /
plantaris mass in Mstn − / − mice.
In contrast, a similar analysis of F66 transgenic mice revealed that although total fiber number was increased slightly (16 %), the overall increase in gastrocnemius /
plantaris mass resulted almost entirely from
muscle fiber hypertrophy (93 % increase in cross-sectional area).
The
plantaris is a very small
muscle.
Liver, small intestine and gastrocnemius (plus
plantaris)
muscles were quickly excised and chilled on ice to stop tracer incorporation.