排序方式： 共有38条查询结果，搜索用时 15 毫秒
1.
以34名上海体育学院退休体育教师为实验组,同济大学普通退休,并较少参加体育活动的老年人32名为对照组,利用彩色多普勒超声心动图检查获得66名60~79岁老年人的心脏形态及功能指标,普通老年人经体表面积BSA校正后得到的心脏结构指标指数据值中多数大于曾有青年期运动史的老年人。心脏功能指标中,曾有青年期运动训练史的老年人的LVFS(P<0.05)、LVFS(P<0.05)、SV(P<0.01)、CO(P<0.05)大于普通老年人,MVE/A(P<0.05)、HR(P<0.01)小于普通老年人。曾有青年期运动训练史的老年人心脏结构和功能随增龄的减退要缓于普通老年人。 相似文献
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针刺内关穴对中长跑运动员心血管系统机能的影响 总被引：5，自引：0，他引：5
龚明波 《天津体育学院学报》2005,20(3):66-68
通过观察针刺内关穴对中长跑运动员心肌泵血功能和血液供应的变化及心脏功能的恢复作用,探讨其对提高中长跑运动员心功能的可行性及其作用机理。对20名中长跑运动员超声心动图的测试结果表明,针刺内关穴可以激发心脏心力储备的潜力,提高运动中心脏的舒张机能和泵血机能,有助于疲劳的恢复,提高运动能力。 相似文献
3.
采用脉冲多谱勒超声心动图观察恒定运动中和运动后左室舒张功能的变化,研究结果显示100w强度运动时舒张早期最大峰值速度E峰峰值流速、舒张晚期最大峰值速度A峰峰值流速、舒张早期最大瞬时压差PPGE、舒张末期最大瞬时压差PPGA显著大于50w,100w强度运动时E/A值显著小于50w.运动后恢复期E峰、A峰、PPGE、PPGA逐渐减少,E/A值逐渐增大,并很快恢复到安静状态.结论:其动力来源和运动时左室的收缩功能提高有关. 相似文献
4.
通过自行设计实验装置对CO_2重复呼吸法施行了改进(MCRT),其目的是能够在不间断的运动中连续地间插测定心输出量(Q)。为了检验它的实效性,我们用MCRT和超声心动图法(ECGT)进行了运动中Q的同步测定,结果二者呈高度相关(r=0.92,P<0.01)。 相似文献
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E. Jane Green Stuart Biddle Penny Crisfield Roger M. Bartlett N.C. Craig Sharp Adrian Lees 《Journal of sports sciences》2013,31(2):147-158
Clinical sports medicine, Robert C. Cantu, (ed.), The Collamore Press, Lexington, Massachusetts, Toronto, 1984. 219 pp, £19.95 (hb), ISBN 0 669 06842 X Sports injuries, a self‐help guide, Vivian Grisogono, John Murray Ltd, London, 1984. 293 pp, £7.95 (hb), ISBN 0 7195 4111 5 Athletes’ guide to mental training, Robert N. Nideffer, Human Kinetics, Champaign, Illinois (distributed in the UK by Eddington Hook & Co.) 1985. vii +156 pp, $9.95 (pb), ISBN 0 931250 96 X Scientific foundations of coaching, R.R. Pate, B. McClenaghan and R. Rotella, Saunders College Publishing, Philadelphia, 1984. xii + 344 pp, £21.95(hb), ISBN 0 03 057961 9 Mathematics in sport, M. Stewart Townend, Ellis Horwood, Chichester, 1984. 202 pp (hb), ISBN 0 85312 717 4 Frontiers of exercise biology, ’Big Ten Body of Knowledge’ symposium series, Vol. 13 K.T. Borer, D.W. Edington and T.P. White (eds), Human Kinetics Publishers Inc., Champaign, Illinois, (distributed in the UK by Edington Hook & Co.), 1983. vii + 295 pp, $31.95(hb), ISBN 0 931250 49 8 The knee, Philippe Segal and Marcel Jacob, Wolfe Medical Publications, Frome, Somerset, 1984. 143 pp (hb), £15, ISBN 2 224 00887 2 Psychological foundations of sport, J.M. Silva and R.S. Weinberg (eds), Human Kinetics, Champaign, Illinois, (distributed in the UK by Eddington Hook & Co), 1984. xxiv + 528 pp, £22.50 (hb), ISBN 0 93 1250 59 5 Physical activity and the social sciences, W. Neil Widmeyer, Mouvement Publications Inc., Ithaca, 1983. 472 pp, £9.00 (pb), ISBN 0 932392 13 X 相似文献
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Gerald D. Tharp William G. Thorland Glen O. Johnson James B. Peter 《Research quarterly for exercise and sport》2013,84(2):139-143
The purpose of the study was to compare young sprint and distance runners for changes in their cardiac dimensions with increased age (10–17 years) or body surface area (1–2 m2). Echocardiographic dimensions were obtained on 73 male track athletes competing in the 1983 National Age Group Track and Field Association championships. Each group of athletes was also compared with a hypothetical normal population (matched for weight and age) generated from prediction equations derived by Henry, Gardin, & Ware (1980). The cardiac dimensions examined were: Left ventricular internal diameter, left ventricular posterior wall thickness, and interventricular septum thickness. The male distance runners (n = 38) had a significantly greater increase in left ventricular posterior wall thickness and interventricular septum thickness with increasing age or increasing body surface area compared to the sprinters (n = 35) or compared to the predicted normal population. The left ventricular internal diameter was not significantly different between the groups. These results indicate that the hearts of male distance runners are undergoing a training hypertrophy whereas the hearts of sprinters are no different than hearts in a normal population. The changes in cardiac dimensions of these young athletes run counter to the generalizations stated for adult athletes: That endurance training enlarges the left ventricular internal diameter, but does not increase the left ventricular posterior wall or interventricular septum thickness. 相似文献
8.
Stephen F. Crouse J. James Rohack Dennis J. Jacobsen 《Research quarterly for exercise and sport》2013,84(4):393-401
Abstract To characterize hypertrophy and quantify seasonal changes in cardiac structure and function of women collegiate basketball (BB) athletes (n = 15), echocardiography (echo) measurements were made in the fall (FALL1), winter (WIN), and spring (SPR), then again during the subsequent fall (FALL2; n = 10). Comparisons were made to age-matched nonathletes (NA) measured during FALL1 (n = 22) and SPR (n = 5). Left ventricular (LV) internal dimension–diastole (LVIDd), LV end-diastolic volume (LVEDV), stroke volume (SV), LV mass (LVM), septal thickness (IVS), LV posterior wall thickness (LVPW), right ventricular (RV) internal dimension-diastole (RVIDd), and aortic root diameter (AOD) were significantly larger (12–70%) in the athletes; RVIDd-, LVEDV-, SV-, and LVM-index were also significantly greater (8–46%). From FALL1 to SPR measurement periods, LVWd, RVWd, LVEDV, SV, IVS, and LVM-index increased significantly (7–18%) in the athletes. Over the same period of time, LVIDd, LAD, AOD, LVEDV, and SV measured in the five NA subjects increased significantly. In the athletes, LVIDs, RVIDd, IVS, LVPW, and LVM decreased significantly (5–30%) from the SPR to FALL2 measurement period. These data characterize the general nature of the cardiac hypertrophy noted in women BB athletes compared to NA controls and show that distinct changes in heart structure corresponding to different periods of the competitive season can occur in these athletes. 相似文献
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Jess Rasmussen Birgitte Hanel Kari Saunamaki Niels H. Secher 《Journal of sports sciences》2013,31(6):525-531
Abstract Pulmonary diffusing capacity (Dlco), together with spirometric variables, arterial oxygen tension (paO2) and cardiac output were determined before and at intervals after maximal arm cranking, treadmill running and erogmeter rowing. Independent of the type of exercise, Dlco increased immediately post‐exercise from a median 13.6 (range 7.3–16.3) to 15.1 (9.3–19.6) mmol min‐1 kPa‐1 (P <0.01). However, it decreased to 11.6 (6.9–15.5) mmol min‐1 kPa‐1 (P <0.01) after 24 h with cardiac output and paO2 at resting values, and Dlco normalized after 20 h. Thoracic electrical impedance at 2.5 and 100 kHz increased slightly post‐exercise, indicating a decrease in thoracic fluid balance, and there were no echocardiographic signs of left ventricular failure at the time of the decrease in Dlco. Also, active muscle (limb) circumference and volume, and an increase in haematocrit from 43.8 (38.0–47.0) to 47.1 (42.7–49.8) (P <0.01), had normalized at the time of the decrease in Dlco. Vital capacity, forced vital capacity, forced expiratory volume in 1 s, peak and peak mid‐expiratory flows did not change. However, total lung capacity increased from 6.8 (5.0–7.6) to 7.0 (5.1–7.8) litres (P <0.05) immediately after exercise and remained elevated at 6.9 (5.1–8.7) litres (P <0.05) when a decrease in Dlco was noted. The results demonstrate that independent of the type of maximal exercise, an approximate 15% reduction in Dlco takes place 2–3 h post‐exercise, which normalizes during the following day of recovery. 相似文献
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目的：探讨上海游泳队优秀游泳运动员心脏形态及功能特点。方法：运用超声心动图技术分析32名优秀游泳运动员（男12人，女20人）和40名普通人（男20人，女20人）的心脏形态结构与功能。结果：优秀游泳运动员的主动脉根部内径（AoD）、左房前后径（LAAPD）、左室舒张末期前后径（LVEDD）、左室收缩末期前后径（LVESD）、左室舒张末期室间隔厚度（IVSd）、左室舒张末期后壁厚度（LVPWd）、左室心肌重量（LVM）、左室心肌质量指数（LVMI）均大于普通人群（P＜0.05），差异有统计学意义，且左室舒张末容积（LVEDV）、左室收缩末容积（LVESV）均显著高于普通人群（P＜0.05），左室射血分数（LVEF）及左室缩短分数（LVFS）低于普通人群，男子组有显著差异（P＜0.05），而女子组无明显差异（P＞0.05）。男女运动员左室每搏输出量（LVSV）均显著高于普通人群（P＜0.05），而左室心输出量（LVCO）与普通人群无明显差异（P＞0.05）。结论：上海优秀游泳运动员心脏发生耐力力量型生理性重塑，心脏泵血功能显著增强，具有较强的心力贮备，可作为优秀游泳运动员选拔的重要参考指标。 相似文献