Distance runner Paula Radcliffe has won dozens of long-distance r...

Question

Distance runner Paula Radcliffe has won dozens of long-distance races and held the women's world record for the marathon since 2003. Scientists, trainers, and athletes alike have wondered about the extent to which muscle structure and function contribute to success in athletes such as Radcliffe. What makes elite distance runners so good? Are their muscles somehow different from those of less successful athletes and non-athletes?

Predict the effect of training for a marathon on the number of muscle cells in the gastrocnemius. Explain.

Accepted Answer

Hi, everyone. Here's our next problem. It says, determine what will happen to the number of muscle cells in a person who does weight training. So when you have a person doing weight training, so causing their muscles to do repeated amounts of hard work, what will happen to the number of muscle cells? Well, you will see in this, that the muscle itself will enlarge with exercise such as weight training, but there will be no change in the number of muscle cells that remains constant. So when we look at our answer choices, um we see that choice C is there will be no change in the number of muscle cells. Obviously choice D none of the above is not correct since we have a correct answer. And then choice A is the number of muscle cells will increase, which is not correct. And choice B, the number of muscle cells will decrease also incorrect. So what will happen to the number of muscle cells in a person who does weight training? Choice C there will be no change in the number of muscle cells. So the muscle uh becomes larger but without a change in the number of those cells see you in the next video.

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