Schweizerische Zeitschrift fur Sportmedizin最新文献_第6页

[The effect of supramaximal exercise on the recovery kinetics of lactate]. [超极限运动对乳酸恢复动力学的影响]。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1991-06-01

H Freund, S Oyono-Enguelle

{"title":"[The effect of supramaximal exercise on the recovery kinetics of lactate].","authors":"H Freund, S Oyono-Enguelle","doi":"","DOIUrl":"","url":null,"abstract":"Blood lactate recovery curves from muscular exercise can be described by a sum of two exponential terms consisting in a rapidly increasing and a slowly decreasing component. A two-compartment model consisting of the previously working muscles and the remainder of the lactate space furnishes the simplest but nevertheless realistic explanation of this evolution pattern. The velocity constants of the rapidly increasing (gamma 1) and the slowly decreasing (gamma 2) components inform respectively on the abilities of the body to exchange and remove lactate. However the blood lactate recovery curves observed in three untrained subjects after 3-min 107-115% VO2max cycling display a transitory plateauing of the lactate concentration between the increasing and decreasing phases of the curves. This levelling off of the concentrations at their highest value was not observed in an endurance trained subject after a 3-min 107% VO2max exercise. Despite the plateauing and consequent less good fit than to the usual evolution curves, the recovery curves could still be accurately fitted by the biexponential time function. After supramaximal exercise the abilities to exchange and to remove lactate are severely impaired. These impairments in the functional properties of the organism are very likely associated with and/or linked to physico-chemical modifications which have been observed as much at the cellular level as in the body fluids during and after supramaximal exercise.","PeriodicalId":76534,"journal":{"name":"Schweizerische Zeitschrift fur Sportmedizin","volume":"39 2","pages":"65-76"},"PeriodicalIF":0.0,"publicationDate":"1991-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13023924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Excessive physical training in children and adolescents. A position statement from the International Federation of Sports Medicine (FIMS). 儿童和青少年过度的体育锻炼。国际运动医学联合会(FIMS)的立场声明。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1991-03-01

引用次数: 0

[Mountain frostbite (apropos of 1260 recorded cases)]. [山地冻伤(约1260例记录)]。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1991-03-01

J Foray, P Foray, S Abrassart

引用次数: 0

[Snowboarding accidents in the Alps. Assessment of risk, analysis of the accidents and injury profile]. 阿尔卑斯滑雪板事故。评估风险，分析事故和伤害概况]。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1991-03-01

F Berghold, A M Seidl

{"title":"[Snowboarding accidents in the Alps. Assessment of risk, analysis of the accidents and injury profile].","authors":"F Berghold, A M Seidl","doi":"","DOIUrl":"","url":null,"abstract":"It is a common belief that snowboarding might carry a higher risk of accident than alpine skiing. In order to prove this suspicion but also to figure out a basic knowledge to develop special security precautions for snowboarding 204 snowboarding-accidents in the Alps have been registered and analysed. The major purpose of this study was to find out the crucial points of risks of this new way of performing winter sports and to compare these risks with the risk-profile of alpine skiing. These have been the main results: More than two thirds of all accidents happen on icy or hard courses. Few more than the half of all injuries affect the lower extremity, one third the upper extremity whereby injuries of the ankle, knee, shoulder and hand emphasize. Strains and fractures are placed in the foreground. Two thirds of all injuries of the lower extremity affect the front of the leg, whereby nearly two thirds of all leg-injuries result from a mechanism which is a combination between bending forward and torsions. Depending on the different types of boot characteristic crucial points have been shown with injuries of either the ankle or the knee. As a principal demand for better safety at least for beginners a functional safety-binding should be developed. Regarding to the most common critics that snowboarding will increase the incidence of collisions (on-course) and avalanche-accidents (off-course), this study could fortunately not prove these suspicions.","PeriodicalId":76534,"journal":{"name":"Schweizerische Zeitschrift fur Sportmedizin","volume":"39 1","pages":"13-20"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13184845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Physical activities in "sick" children, sports on prescription]. [患病儿童的体育活动，处方上的运动]。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1991-03-01

J P de Mondenard

{"title":"[Physical activities in \"sick\" children, sports on prescription].","authors":"J P de Mondenard","doi":"","DOIUrl":"","url":null,"abstract":"The medical profession seems to be more and more convinced of the beneficial effects to the child elicited by a sports activity at any age not only as morphological adaptation, but as psychological improvement too. For the sickly child, a given sport can be very helpful for his psychological development, as it gives him the means to show his abilities, to overcome his handicap and thus master his health problem. The general practitioner therefore should not prohibit going for sports. To the contrary, he should encourage, even prescribe outdoor games to the child. The child has to be carefully instructed as to how to carry out the chosen sport. We cannot put too much emphasis on the fact such as exercise treatment can only be successful if the children are particularly motivated and have been briefed. We have selected nine illnesses which include very often the bulk of the exemptions from the physical education lessons at school. We listed for each disorder a series of sports and various outdoor activities under the following headings: --activities to be recommended, --sports of lesser therapeutic value, or not to be recommended under some circumstances, --sports without demonstrated beneficial effects, or to be advised strongly against. Episodic exercise contributes certainly nothing to stabilizing the symptoms of the disease in patients suffering from a chronic disorder. To the contrary, a training program maintained for a prolonged period may be very beneficial in improving the wellbeing of the patient. Thorough information, as well as a clear exercise program which should be done in some cases under medical supervision is needed. One should keep in mind however, that any problems arising can be mastered and that the child will take an undeniable advantage of such a treatment.","PeriodicalId":76534,"journal":{"name":"Schweizerische Zeitschrift fur Sportmedizin","volume":"39 1","pages":"21-31"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13184846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Perceived effort: correlation with the anaerobic threshold and usefulness in a training program]. [感知努力:与无氧阈值和训练计划有效性的相关性]。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1990-12-01

P B Mahler, A Rostan

{"title":"[Perceived effort: correlation with the anaerobic threshold and usefulness in a training program].","authors":"P B Mahler, A Rostan","doi":"","DOIUrl":"","url":null,"abstract":"Following the extensive technical progress in monitoring of sports performance, putting certain physiological principles out of reach for the everyday sportsman, we wondered if perceived effort (PE) as described by Borg is a parameter that is of use, or complementary, to the determination of the anaerobic threshold (AT) during an incremental test on a treadmill on one hand and to prescribing exercise adapted to the type of metabolic load on the other. 46 sportsmen (various soccer players, regional runners) were asked to complete a Conconi Test on a treadmill and at the same time were asked to evaluate their PE (as defined by Borg) at each performance level. We then plotted PE as a function of running speed, thus finding a point of inflexion (ascending) for PE. The speed corresponding to this point shows an excellent correlation with the AT as determined from cardiac frequency. The absolute value of PE at the AT varied little within our group, but seemed to vary according to the type of sport and the subjects' sports practice. Taking the limitations of this method in consideration, PE may be used as an additional indicator in the determination of the AT in an incremental AT-test and can be useful in the prescription of an exercise program.","PeriodicalId":76534,"journal":{"name":"Schweizerische Zeitschrift fur Sportmedizin","volume":"38 4","pages":"187-91"},"PeriodicalIF":0.0,"publicationDate":"1990-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13424850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Analysis of doping: possibilities and limitations]. [兴奋剂分析:可能性和局限性]。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1990-12-01

M Kamber

引用次数: 0

[How reliable is the monitoring for doping?]. [兴奋剂监测有多可靠?]

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1990-12-01

J Hüsler

引用次数: 0

[European Council: sports and sports science research]. [欧洲理事会:体育和体育科学研究]。

Schweizerische Zeitschrift fur Sportmedizin Pub Date : 1990-12-01

U Weiss