-
دکتر ابوالفضل
فراهانی
author
text
article
2001
per
New educational methods are concerned with the transfer of learning responsibility from the teacher to the learner. Self-study or independent study is one of the active learning methods, that has a significant role in retension
stability of some courses and fields of study.
This research is a semi-experimental study that examInes the effects of
self-study and individual learning of physical education. The data were collected through eight closed questionnaries (240 questions). The statistical population was the physical education graduates of the second semester of the
academic year 1999-2000.
The results indicate that generally, self-study or independent study is more
effective in the graduates' retension. Those who graduated through the self-study or individual study mode had a higher rate of retension as compared
with on-campus students. Such difference is significant from statistical perspective in a = 0.03 level.
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12673_839eac8fcccdfc50477fd14f3d91bc2d.pdf
-
دکتر سیدرضا عطارزاده
حسینی
author
احمد حسن
نیا
author
دکتر مهدی طالب
پور
author
text
article
2001
per
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12674_557ce34b29255980fe8393a71277a1ba.pdf
-
افسانه قوجه
لی
author
text
article
2001
per
The purpose of this study was to determine the effects of a series of polyometric training on the structural, physiological and technical attributes of the Islamic Republic of Iran's elite national girl swimmers (ages 15-17).
To do so, 30 girl swimmers who were participating in the national swimming team were selected randomly and were divided into experimental and control
groups. The experimental group performed pOlyometric training three days a week for a duration of eight weeks in addition to their routine swimming training. The length of polyometric training was minutes for the first two
week, and 18 to 20 minutes for the last two weeks. Analysis of the data showed:
The polyometric training had a singnificant effect on the, aerobic power (P=O.Ol), and 33 meter swimming record (P=O.OOOl), while this training did not have any significant effect on react inn time (P=0.10).
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12675_9b446856da4f57d64e82cacced07b560.pdf
-
افشار
جعفری
author
دکتر عباسعلی صاحبقدم
لطفی
author
دکتر خسرو
ابراهیم
author
text
article
2001
per
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12676_6033ddd97ce4c4b3b9cf553964869763.pdf
-
دکتر فرزاد
ناظم
author
اکبر
سازوار
author
دکتر نادر
فرهپور
author
text
article
2001
per
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12677_bff071eb1c3ccb34e0559cbabcef4a67.pdf
-
محمدرضا
کردی
author
محمدعلی
سالیانه
author
دکتر عباسعلی
گائینی
author
text
article
2001
per
The aim of this study was to compare two models of aerobic exerCIse (interval & continuous) on EPO concentration in 18-23 year old males. 50 college students were selected randomly and divided to two groups. One of the groups (25 subjects) performed interval aerobic exercise for 8 weeks. They participated in 5 training sessions per week (one session per day) and the 25 subjects in the other group did continuous aerobic exercise for 8 weeks.
The EPO concentration alterations. Red blood cell count (RBC) and mean corpuscular Volume (MCV) were analyzed in subjects in pre and post testing.
Also the VOzmax of subjects was measured before and after two models of
aerobic exercise. The data showed that:
1. There was no significant different on EPO concentration before and after
interval and continuous aerobic exercise.
2. There was no significant difference on EPO concentration between interval aerobic exercise and continuous earobic exercise.
3. The effect of interval aerobic exercise on VO2max and RBC was significant, but on the MCV was not significant.
4. The effect of continuous aerobic exercise on all of the factors including EPO concentration, RBC and MCV accept VO2max was not significant
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12678_1a82b2ec33045ea1fddefd6196d512ef.pdf
-
محمدرضا
کردی
author
محمدعلی
سالیانه
author
دکتر عباسعلی
گائینی
author
text
article
2001
per
The aim of this study was to compare two models of aerobic exerCIse (interval & continuous) on EPO concentration in 18-23 year old males. 50 college students were selected randomly and divided to two groups. One of the groups (25 subjects) performed interval aerobic exercise for 8 weeks. They participated in 5 training sessions per week (one session per day) and the 25 subjects in the other group did continuous aerobic exercise for 8 weeks.
The EPO concentration alterations. Red blood cell count (RBC) and mean corpuscular Volume (MCV) were analyzed in subjects in pre and post testing.
Also the VOzmax of subjects was measured before and after two models of
aerobic exercise. The data showed that:
1. There was no significant different on EPO concentration before and after
interval and continuous aerobic exercise.
2. There was no significant difference on EPO concentration between interval aerobic exercise and continuous earobic exercise.
3. The effect of interval aerobic exercise on VO2max and RBC was significant, but on the MCV was not significant.
4. The effect of continuous aerobic exercise on all of the factors including EPO concentration, RBC and MCV accept VO2max was not significant.
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12679_01c1abfbc1a7a5797f10344da734dbc4.pdf
-
محمدرضا
کردی
author
محمدعلی
سالیانه
author
دکتر عباسعلی
گائینی
author
text
article
2001
per
The aim of this study was to compare two models of aerobic exerCIse (interval & continuous) on EPO concentration in 18-23 year old males. 50 college students were selected randomly and divided to two groups. One of the groups (25 subjects) performed interval aerobic exercise for 8 weeks. They participated in 5 training sessions per week (one session per day) and the 25 subjects in the other group did continuous aerobic exercise for 8 weeks.
The EPO concentration alterations. Red blood cell count (RBC) and mean corpuscular Volume (MCV) were analyzed in subjects in pre and post testing.
Also the VOzmax of subjects was measured before and after two models of
aerobic exercise. The data showed that:
1. There was no significant different on EPO concentration before and after
interval and continuous aerobic exercise.
2. There was no significant difference on EPO concentration between interval aerobic exercise and continuous earobic exercise.
3. The effect of interval aerobic exercise on VO2max and RBC was significant, but on the MCV was not significant.
4. The effect of continuous aerobic exercise on all of the factors including EPO concentration, RBC and MCV accept VO2max was not significant
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12680_05e54a0b25a41bcf35ad9d7ea4199df5.pdf
-
دکتر حمید
محبی
author
text
article
2001
per
In the present study the effects of hyperglycemia (i.e.,12 mmolll) throughout prolonged intense exercise on carbohydrate metabolism were examined. Eight male subjects undertook two trials during which they exercised on a cycle ergometer at an intensity of -70% Vozmax for 120 min. In the first trial (trial A), subjects had their blood glucose concentration clamped at 12 mmolll, 30 min before exercise and throughout exercise, The same rate and volume of infusion of 0.9% saline as had occurred for trial A
were used in a placebo trial (trial B).
Calculted of the rates of total carbohydrate oxidation showed that trial A
resulted in significantly higher values when compared with trial B (P
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12681_b63c1cb347f99f075bde86d3927d275b.pdf
-
افسر
جعفری
author
دکتر محمدرضا
بیات
author
text
article
2001
per
In the present study the effects of hyperglycemia (i.e.,12 mmolll) throughout prolonged intense exercise on carbohydrate metabolism were examined. Eight male subjects undertook two trials during which they exercised on a cycle ergometer at an intensity of -70% Vozmax for 120 min. In the first trial (trial A), subjects had their blood glucose concentration clamped at 12 mmolll, 30 min before exercise and throughout exercise, The same rate and volume of infusion of 0.9% saline as had occurred for trial A
were used in a placebo trial (trial B).
Calculted of the rates of total carbohydrate oxidation showed that trial A
resulted in significantly higher values when compared with trial B (P
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12682_49adc8d0c177a09d28edfebe3684fb23.pdf
-
دکتر عباسعلی
گائینی
author
text
article
2001
per
The main purpose of this study was to compare the effect of maximal and sub-maximal exercises on hematological parameters in athletic and
non-athletic young male students.
90 students (46 athletes, 44 non-athletes) with an age range of 15 to 17
years were selected randomly in Tehran. They practiced both maximal and sub-maximal exercises under the Bruce test for one week.
In sub-maximal exercise they were allowed to continue the bruce test and to stop the exercise whenever their heart rate reached to 150.
In maximal exercise they were instructed to exercise until exhaustion. Blood
samples were taken be for and after the exercises.
Analysing of the data showed:
1. There was a significant difference in HCf, MCHC and MCV response
of athletes and non-athletes to maximal exercise, while no significant differences were observed regarding HOB, MPV, PL T, RBC, RDW and WBC
variables in two groups.
2. No significant difference was witnessed regarding hematological parameters
between two groups caused by sub-maximal exercise
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12683_54e2fad0ed365de6bcb4dfb611cdc3ed.pdf
-
دکتر ناصر
بهپور
author
دکتر بهمن
تاروردیزاده
author
فاطمه ی
نیکرام
author
text
article
2001
per
Water aerobic training perfermed in different forms such as rumng, Uumping and walking, has its own unique effects. Running in shallow water,
is accomplish in three different forms: running in shallow water, running with special floating devices in deep water, and running without any floating devices in deep water jumping, and walking, has its own unique effects.
In this study, aerobic power, body composition, weight, and 540 m run time
are determined as pretest and post test in 22 untrained high school girls (mean age 15.42 :t .82), divided in two experimental and control groups(n=l1).
Experimental group began their training program in water as high as 70 percent of their heights, and continued this for 3 days a week for 18 bouts. Running times in water'bas began from 20 min, increased 1 min per session, so
that finally subjects .ran about 37 min. Mean temperature of water during entire training was 27 :t 2°c. The following results has obtained finally:
1. 4.7 percent significant increase in absolute Vozmax. 2. 1.7 percent significant decrease in weight. 3. 6.5 percent significant decrease in percent body fat. 4. 12.8 percent significant decrease in 540m run time
In summary, with respect to the results of different studies in this field, the objectives of aerobic water training, determine. Training form and quality: if
the objectives of training are maintaining cardiovascular fitness of injured athletes or special population, then it would better that training be performed
in deep part of the pool, with or without tloating devices. If the objectives of training are Vozmax improvements, then it would better that training be
performed in the shallow part of the pool, main taining running pattern in track.
Harakat
دانشکده تربيت بدني دانشگاه تهران
1563-3306
10
v.
10
no.
2001
https://joh.ut.ac.ir/article_12684_deecf2fcc60de1d5a3d5712f677f3d3d.pdf