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Comments

• [1] evan August 01, 2008 - 01:35PM

  What is the physiological difference between fast twitch and slow twitch muscle?

  
  
• [2] Ray Dellert from NYC August 01, 2008 - 01:39PM

  I have been weight training for a number of years - never a big supplement user: Creatine and Protien shakes. But have added NO2 (main ingredient: Arginine alpha-Ketoglutarate), MRI Company. On this supplement, with regular workouts, I have achieved my highest ever body weight of 138 lbs. (am small framed, 5'4" male, normal weight hovers around 125 lbs.)and could squat just over 400lbs.

  Please discuss how this works- if you know, and other factors that generally improve/impede real muscle gain.

  
  
• [3] Lisa from Brooklyn August 01, 2008 - 01:39PM

  Can you increase the number of nerves going to a muscle by using the muscle more, as in regular exercise or weight training?

  
  
• [4] Anne from Manhattan August 01, 2008 - 01:44PM

  What is "muscle memory"?

  I used to run 1/2 marathons, took a few years' break and have recently begun running again. It only took about three runs before I felt like my body found it's "groove" again with running.

  Is this really some sort of memory stored in the muscles? Does muscle memory work the same way for my leg muscles as my heart? How long woudl it take for my muscles to "forget"?

  
  
• [5] Frank A. Ocwieja from Hartsdale, NY August 01, 2008 - 01:44PM

  Do dancers and gymnasts grow more numerous nerve connections to their "slow-twitch" muscles, like their legs? Is this a part of their training?

  
  
• [6] Sergio from Carlstadt New Jersey August 01, 2008 - 01:48PM

  I have involentary leg movement everytime i sit down. I can't stop moving my legs back & forth, but i like it. Why do my legs want to move back & forth? Is it to release energy?

  thanks

  
  
• [7] Jenny from Manhattan August 01, 2008 - 01:48PM

  please explain the timing of eating high-carbohydrate or low-carb/high protein affects the ability to use and build up muscles.

  e.g. no carbs on same day before workout,

  or plenty of carbs same day beforehand,

  or lots of spaghetti the night before.

  Also, what are differences in muscle type and building between men and women

  thank you

  
  
• [8] evan August 01, 2008 - 01:52PM

  Is it important to eat protein immediately after working out to build muscle? How much protein can the body digest at one time?

  
  
• [9] darla from tribeca August 01, 2008 - 01:53PM

  I go to yoga 3 to 4 times a week- I am 58 ....why do I always feel sore after yoga- not immediately but hours later and the next day or two?

  I love it- but...

  do you think I am improving each time and that is why I get so sore?

  
  
• [10] tom sheckler from park slope August 01, 2008 - 01:53PM

  please explain muscle cramps

  
  
• [11] Scott from Brooklyn August 01, 2008 - 01:54PM

  Evan,

  I've read that you should eat protein after you workout. It takes about 4 hours to dissolve 25 grams of protein, or something like that.

  
  
• [12] norman from nyc August 01, 2008 - 01:56PM

  what about heart muscle?

  when that gets damaged, it's all over.

  
  
• [13] Anonymous from NY August 01, 2008 - 01:57PM

  I had 6 weeks of radiation treatment to my pelvis to treat anal cancer at the end of last year. When I began a fitness routine to get back into shape, I noticed that the muscles in my butt were very tight and would get very sore after relatively light exercise. How might the radiation affect those muscles?

  
  
• [14] Curby from New York August 01, 2008 - 01:57PM

  is there a podcast of this broadcast?

  The Lopate Show responds:

  The podcast of this segment will be available later this afternoon.

  
  
• [15] Jack August 01, 2008 - 01:57PM

  why do certain parts of my muscles involuntarily twitch very visibly

  
  
• [16] Carrie from Maplewood August 01, 2008 - 01:59PM

  Habitually held muscles become tight as a result of Sensory/Motor Amnesia. The feedback loop between the brain and the muscle goes into a sort of "cruise control", which makes it difficult to release those muscles. To overcome sensory/motor amnesia, brain control of the muscle has to be re-engaged so that the feedback loop can be interrupted, and control is regained.