Lactic
acid:
By-product
of anaerobic
glycolysis.
Lactic
acid
is used
as fuel
by the
heart,
but
too
much
lactic
acid
in the
system
slows
contraction
in skeletal
muscles
and
brings
about
fatigue
in the
muscles.
Lean
body
mass:
All
body
tissue
except
storage
fat.
Lean
body
mass
is made
up of
structural
and
functional
elements
in cells,
body
water,
muscle,
bones,
and
other
body
organs
such
as the
heart,
liver
and
kidneys.
Ligament:
A ligament
is a
band
of tough,
fibrous
tissue
that
connects
two
bones,
and
makes
up the
joints.
One
of the
most
well-known
ligaments
is the
Anterior
cruciate
ligament
(or
the
ACL)
which
is one
of the
four
major
ligaments
of the
knee.
Main
Menu
