First minute 1, 4.
2, 5 minutes the next day.
3. Six in one minute in the third grade.
Four, seven a minute.
One minute in sophomore year, 5, 8.
6. Nine in one minute in senior three.
7. Freshman, sophomore and one minute 10.
8. One minute for junior year and senior year 1 1.
Extended data
Pull-ups require men to have a certain grip strength and upper limb strength, and they must be able to overcome their own weight to complete it once. Pull-ups play an important role in developing the suspension strength, shoulder strap strength and grip strength of upper limbs. It is based on the number of times the action specification is completed. If you do more, your grades will be good. So it is a strength endurance project.
In the process of doing pull-ups, it is the skeletal muscle contraction of upper limbs and back that provides strength, so it is very important to develop muscle strength and endurance of upper limbs and back.
Choose a lower horizontal bar or a strong enough crossbar, and the best height from the ground is 1/2 of the height of the practitioner. The starting position is that the practitioner lies under the crossbar, holding the crossbar with both hands straight, slightly wider than the shoulders, and supporting the ground with both feet. The body looks at the head, shoulders, hips, knees and feet in a straight line from the side, and then pulls up until the lower jaw is higher than the upper edge of the crossbar.
The National Standards for Students' Physical Fitness and Health is applicable to students in full-time ordinary primary schools, junior high schools, ordinary high schools, secondary vocational schools and ordinary colleges and universities. Students are divided into different groups according to their grades. Height and weight in the body shape category, vital capacity in the body function category, 50-meter running and sitting forward in the body quality category are the * * * sex indicators of students of all grades.
Each student is evaluated once every academic year and recorded in the National Student Physical Health Standard Registration Card (attached table 1 ~ 6). Schools with special academic system can add or subtract columns according to regulations and needs when filling in the registration card. Students' graduation grades and grades shall be assessed according to the sum of 50% of their total graduation grades and 50% of the average grades in other academic years.
The National Standards for Students' Physical Fitness and Health has added some simple and effective items and increased the weight of some exercise items, which has strong effectiveness in guiding students to do physical exercise. At the same time, through the data management system of National Students' Physical Health Standards, students can also find targeted exercise prescriptions for scientific physical exercise according to local conditions and improve their physical health.
Minnan language. The latest edition of "National Students' Physical Health Standard"