All issues
Volume 29 (1980)
- Issue 4 Pages 191-
- Issue 3 Pages 133-
- Issue 2 Pages 69-
- Issue 1 Pages 1-
Volume 29, Issue 3
Displaying 1-6 of 6 articles from this issue
- |<
- <
- 1
- >
- >|
-
ERLING ASMUSSEN1980 Volume 29 Issue 3 Pages 133-142
Published: September 01, 1980
Released on J-STAGE: December 10, 2010
JOURNAL FREE ACCESSDownload PDF (1082K) -
KOHMEI IKUTA, FUMIO NAKADOMO, TETSURO NEGI, SADAYOSHI HARIMOTO1980 Volume 29 Issue 3 Pages 143-151
Published: September 01, 1980
Released on J-STAGE: September 30, 2010
JOURNAL FREE ACCESSWe measured the power that sprinters and non-athletes put out by Monark's bicycle ergometer under eight work loads from light to heavy.
Also we measured the power that was put out when sprinters and non-athletes repeated the work that recorded the maximum power respectively 10 and 9 times.
The results were as follows :
1) Large difference was not found between the largest power of sprinters and that of non-athletes in the works of 3 or 4 kp light work loads. But considerable difference between the largest power of sprinters and that of non-athletes was found as the work loads got on heavy from 5 to 7 kp. Sprinters who had best record of 10''7-10''9 in 100 meters dash put out the maximum power (90.4-105.8kgm/sec) under the work loads of 7 or 8 kp. On the other hand non-athletes put out the maximum power (62.1-85.2kgm/sec) under the work loads of 5 or 6 kp.
2) As the work loads got on heavy from 5 to 7 kp, such a large difference between sprinters and non-athletes was not found in forces, but remarkable difference was found in speed. And sprinters were better in speed under comparatively heavier work loads than non-athletes. This was a factor which caused the large difference in the max-imum power between sprinters and non-athletes.
3) The maximum powers which were put out by all subjects except two sprinters were situated on almost a straight line. But those of two sprinters were situated on the left of that line. This means that two sprinters excelled power output especially in speed.
4) When sprinters and non-athletes repeated the work which put out the maximum power respectively 10 and 9 times, having a rest for 4 minutes between the works, the powers did not indicate great decline from 1 to 910 times in both sprinters and non-athletes. But when they repeated the same work, having a rest for 1 mimute between the works, the powers indicated a considerable decline from about 5 to 910 times in both sprinters and non-athletes. And the rate of those decline did not indicate great difference between sprinters and non-athletes.
5) We found out three types on the power output in both sprinters and non-athletes as follows : (1) compared with the power decline from 4 to 5 sec, the rate of that from 5 to 6 sec was considerably high, (2) the power declined from 4 to 6 sec, and the rate of this decline was comparatively small, (3) the rate of power decline 4 to 6 sec was wholly maintained high.View full abstractDownload PDF (1033K) -
NOBUO UEDA1980 Volume 29 Issue 3 Pages 152-164
Published: September 01, 1980
Released on J-STAGE: September 30, 2010
JOURNAL FREE ACCESSTwo experiments were carried out for the purpose of finding the effects of the reduction of diet and physical exercise load on the body weight loss and nitrogen balance in women.
The first experiment observed the change of the body weight loss and nitrogen balance when the energy intakes were varied at 30, 25 and 20 Kcal/Kg B.W./day, fixing the dietary protein level at 1.45 g/Kg B.W, and the exercise load at 270 Kcal/day so as not to interfere with an everyday life.
The second experiment compared the weight reduction of two groups. The first group followed the exercise load and the low energy diet at the same time. The second group delayed the starting of the exercise load for a certain period. It was suggested as follows ;
1. It was found that there was little reduction of the body weight at 30 Kcal/Kg B.W, and too much at 20 Kcal/Kg B.W. (350 g/day loss), but most of it was due to the body protein loss. At 25 Kcal/Kg B.W., the body weight loss was about 150-200 g/day, nitrogen balance was positive and hemoglobin level did not decrease. Therefore, when adult women try to reduce their body weight suitable physical exercise load, 25 Kcal/Kg B.W. is considered to be the most appropriate level for the reduction of the body fat.
2. In reducing the body weight, it is not desirable that both the exercise load and the low energy diet are introduced at the same time from the beginning, because it leads to an active protein metabolism and to the collapse of the body protein. Therefore, it is desirable that the exercise load is given only after the person has adjusted to the low energy diet or at least when the nitrogen balance is positive.View full abstractDownload PDF (1278K) -
SACHIO OHMORI1980 Volume 29 Issue 3 Pages 165-168
Published: September 01, 1980
Released on J-STAGE: September 30, 2010
JOURNAL FREE ACCESSUp to date Donaggio reaction positive substances from serum as well as urine had been already clarified to be glycoprotein, mainly a globulin region.
The purpose of this study was to investigate the relation between serum proteinsubfractions and Donaggio reaction positive substances. Used serum protein was separated to 30 minor parts by means of starch electrophoresis.
The obtained summary was as follows ;
1) Almost all serum protein-subfractions had Donaggio titer, but albumin and a globulin regions were guessed to be main parts.
2) Albumin region had high Donaggio titer and specific activity (Donaggio titer / total protein), but they will be lost by deproteinization in practical Donaggio measuring.
3) Specific activity of serum subfraction was maximum in a, blobulin region. Donaggio reaction (nondeproteinization) positive substances in serum were anode side than haptoglobin or α2-HS glycoprotein.
4) It was seemed that α1-AG (α1-acid glycoprotein) occupied main parts of α1 globulin region, as Donaggio reaction positive substance.View full abstractDownload PDF (1830K) -
KATSUMI MITA, HISASHI AOKI, KYONOSUKE YABE1980 Volume 29 Issue 3 Pages 169-176
Published: September 01, 1980
Released on J-STAGE: September 30, 2010
JOURNAL FREE ACCESSAn electromyographic silent period can be observed preceding a rapid voluntary movement following the sustained contraction. This phenomenon has been called the “premotion silent period”, (p. s. p.) .
In the present study, relationship between frequency of the p. s, p. appearance and joint angle in the preparatory phase was examined. An elbow joint extension to visual stimulus was chosen fo the rapid voluntary movement. It was found that the p, s, p, appeared frequently at the elbow joint angle less than 80 degrees, and no noticeable change of the frequency was seen in this range. The frequency of the p, s. p. appearance exceeding 80 degrees had a tendency to decrease. The authors discussed the possibility of correlation between the p, s. p, appearance and activity of the muscle spindle.View full abstractDownload PDF (2421K) -
SETSURO KURIYAMA, WATARU KAWASHIMA, SHOKICHI UEMURA, YOSHIKATSU KUROKI ...1980 Volume 29 Issue 3 Pages 177-187
Published: September 01, 1980
Released on J-STAGE: September 30, 2010
JOURNAL FREE ACCESS1) The objectives of author's present study were 42, 245 patients with ratio of males to females of 7 to 3 in 44, 327 affected locations, covering the period of 23 years from the December of 1956 to the end of March of 1979.
2) All the injuries thus treated can be classified into 18, 815 (42.5%) of sprains, 11, 838 (26.7 %) of fractures, 9, 650 (21.8%) of lacerations, 2, 812 (6.4%) of contusions, 752 (1.7%) of dislocations and 460 (1.0%) of others.
3) Looking from auther's statistical study of the ski injuries in the past 23 years, the development of the ski equipments have largely effected on the ski injuries.
4) The lacerations on the head, face and arm are increased when the safety bindings have come into wide use. So, we expect the effect of the ski-stopper replacing the strap, in order to decrease the lacerations.
5) Injuries of the ankle have been decreased because of the plastic ski boots. Especially, “the ski fractures”, or, the abducted and external rotated fractures of the lateral malleolus are decreased remarkably.
6) The knee sprains, or, the ligamentous strains of medial colateral ligament of knee joint have been increased, because the stiff and high backed plastic ski boots have come into wide use.
7) Fractures of the lower legs and boot top fractures have been increased, according the development of the ski boots, such as from the leather boots to buckled boots to plastic boots.View full abstractDownload PDF (5502K)
- |<
- <
- 1
- >
- >|