A combination of factors may be involved. Possible causes of persistent stuttering include: 1  Abnormalities in speech motor control. Some evidence indicates that abnormalities in speech motor control, such as timing, sensory and motor coordination, are implicated.  Genetics. Stuttering tends to run in families.
Do Plank Exercises Work? The plank is an exercise that works the bodyâs core, specifically the abdominal muscles and lower back. The exercise is traditionally performed as part of yoga and Pilates regimens but is effective for anyone looking to improve core strength and balance.
As in most arm balances, arm strength is something of a factor here but it's really all about core strength. All those deep abdominal muscles are what give you the control to do balancing postures. And doing plank (correctly) is a great way to build them. Next stop, crow pose! To get the most out of plank, you need to use your abs to support your body's midsection, keeping that straight line of energy from the crown of your head to your heels. Increasing your hold time in plank is another good way to build strength.