All muscles in the human body fit into one of three types or categories: "skeletal, smooth, and cardiac," explains Eric Hegedus, PT, PhD, a professor of rehabilitation sciences at Tufts University ...

Participating in any workout or sport that uses leg and thigh muscles can help as well. It's also important to avoid unrestrained movements or activities that could pull or tear your hip flexors.

With the help of your nervous system, some muscles in your body can be controlled directly by you: i.e., operating voluntarily. Thinking about a movement will activate the appropriate muscles.

SMA weakens muscles by killing off motor neurons in the spine. The first motor neurons to go are typically those controlling muscles in the shoulders, back, hips and thighs.

“Abs” refers to the rectus abdominis muscles that run down the front of your stomach and create the six-pack look we’ve come to associate with strength and athleticism. Your core, on the ...

Why muscles change — and get weaker — with age, even when you work out Older people still get valuable health benefits from exercise, including improved strength, physical function and reduced ...