alex wrote:
You mentioned you have weak muscle tone. How many days a week do you do weight training at the gym and how long have you been working out with no results?
What exercise buffs call 'muscle tone' is not the same as the medical definition of the term. Exercise buffs typically use 'muscle tone' to refer to how much muscle mass a person has, while medical people use the term 'muscle tone' to refer to the baseline level of tension in a person's muscles, which is determined by messages sent from the brain.
A person with weak muscle tone, therefore, is not someone with less muscle mass, but someone whose muscles tend to relax too much and who has to expend more effort to tense their muscles. For example, a person with a spinal cord injury will generally have little or no muscle tone below the site of their injury, because the messages from the brain are blocked by the injury.
Conversely, people can also have hyperactive muscle tone, which causes spasticity (the most common symptom of cerebral palsy). Essentially, the brain constantly tells certain muscles to tense up, and the person finds it difficult to relax their muscles enough to use them properly. For example, the muscle attached to the Achilles tendon might be constantly tensed, causing the person to point their toes constantly and forcing them to walk on tiptoe all the time. Or the biceps might be constantly tensed, making it difficult for the person to straighten their arm.
Of course, since our bodies change in reaction to how we use them, people with low muscle tone will often end up with lower muscle mass due to underuse. Meanwhile, hypertonia can lead to abnormally short tendons and so forth, in severe cases requiring surgery to repair. However, the fundamental problem isn't with the muscles, it's with the brain.