Cross-countryskiingcanbeenjoyedbyawiderangeofstudents,f...

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Cross-country skiing can be enjoyed by a wide range of students, from the youngest kindergartners to those secondary students. It is really a fun activity, providing students a gentle workout outside in winter. While having fun, students can gain physical and mental benefits.

The physical benefits of cross-country skiing are well-known. If we look at Olympic cross-country skiers, we can see the positive effects on the body that result from training for cross-country skiing.

The average best female cross-country skiers carry 11 percent body fat, and best male skiers carry 5 percent. These percentages are well below the average people who are considered to be athletic—17 percent for females and 10 percent for males. Burning a high number of calories while skiing helps to keep skiers slim in a healthy and attractive way.

Cross-country skiing is also an efficient way to exercise a large number of muscles at once. The upper body gets much more of workout because skiers use ski poles as a means of propulsion (推进), the force that drives skiers forward. Of course, the leg muscles also do their fair share. People who use cross-country skiing as a workout over several weeks will discover that the muscles of their whole body increase in strength.

Cross-country skiing on a regular basis has a tremendous effect on a person’s cardiovascular (心血管的) system. In addition to gaining strength in the muscles of the upper and lower body, people who use cross-country skiing as a workout method over several weeks will also discover that their heart is stronger. A strong heart pumps more efficiently, sending out more blood to the muscles with each contraction (收缩). Through weeks of skiing, people often discover that their resting heart rate has decreased. Highly trained Olympic cross-country skiers have resting heart rates between 28 and 40 beats per minute. Compare that to the resting heart rate of the average person, which is 60 to 80 beats per minute!

The benefits of cross-country skiing extend beyond overall general health. A lot of evidence exists showing that regular physical activities increase the release of mood-lifting endorphins (内啡肽) in the body. After fun skiing lessons, students will be full of energy; they will be relaxed and in a better mood than when they started class. Students will leave class with a sense of accomplishment, knowing that they have developed new skills in a fun activity.

Cross-country skiing is a great way to exercise the whole body. Now more and more students are taking part in this exercise outside during the winter months. They are enjoying it and benefiting from it!

___51___ to cross-country skiing	Cross-country skiing is a winter activity suitable for students of___52___ ages which benefits them physically and mentally.
Benefits of cross-country skiing	Reducing body fat	Training for cross-country skiing___53___ their body positively, making them slim in a healthy way.
	___54___ muscles	Muscles can be built up___55___ if skiers take part in the activity.
	Improving the cardiovascular system	● A strong heart is beneficial to blood___56___. ●___57___ with that of the average person, the resting heart rate of highly trained skiers is lower per minute.
	Lifting mood	● The release of mood-lifting endorphins can be ___58___. ● Students will be___59___ and relaxed after skiing lessons.
Conclusion	Cross-country skiing is such a good way to work out that a ___60___ number of students are enjoying and benefiting from it.