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脑卒中已经成为我国居民的第一位死亡原因，每年死于脑卒中患者约196万、每21秒就有一人死于卒中、每12秒钟就有一人发生卒中、每年新发卒中患者约270万、每年8.7%的速度增加。脑卒中成为导致中国人死亡的首位原因，超过了缺血性心脏病和COPD。急性脑血管栓塞病情十分危急且凶险，有高死亡率及高致残率等特点。
Optimal Body Size and Limb Length Ratios Associated with 100-m Personal-Best Swim Speeds
PERSONAL-BEST SWIM SPEEDS LIMB SEGMENT LENGTHS RATIOS ALLOMETRIC MODELS LOG-LINEAR REGRESSION
2017/4/19
Purpose: This study aims to identify optimal body size and limb segment length ratios associated with 100-m personal-best (PB) swim speeds in children and adolescents.
Methods: Fifty national-standar...
Age of peak swim speed and sex difference in performance in medley and freestyle swimming – a comparison between 200 m and 400 m in Swiss elite swimmers
woman man aquatic sport
2014/3/9
The aims of the present study were to examine (i) the age of peak swim speed and (ii) the sex difference in peak swim times in 200m and 400m medley versus freestyle. Swim times and ages of 5,524 swimm...
Does a 24-hour ultra-swim lead to dehydration?
Ultra-Endurance Body Mass Fat Mass Skeletal Muscle Mass
2013/10/4
We investigated the change in body composition and hydration status in one male ultra-endurance swimmer during a 24-hour swim. Body mass, percent body fat and skeletal muscle mass using the anthropome...
How to get an efficient swim technique in triathlon?
INTRA-CYCLE VELOCITY SWIMMING ECONOMY TRAINING
2013/10/4
Both in swimming and triathlon, depending on the event, the athletes have to swim the same distance (1500 meters) but the goal is different. In swimming, the goal is to be the fastest (winning the rac...
Optimization of fin-swim training for SCUBA divers
DIVERS fitness Underwater swimming exercise fin-swimming velocity endurance high intensity intermittent fin-swim training moderate intensity continuous training respiratory muscle training
2009/6/2
Underwater swimming is a unique exercise and its fitness is not accomplished by other types of training. This study compared high intensity intermittent fin-swim training (HIIT) with moderate intensit...
Quantification of bovine sperm separation by a swim-up method. Relationship to sperm motility, integrity of acrosomes, sperm migration in polyacrylamide gel and fertility
Quantification bovine sperm separation swim-up method
2009/2/23
The number of bovine spermatozoa separated in a swim-up procedure was quantified using an electronic cell counter. In an initial test of the swim-up procedure, non-frozen sperm samples with differen...
Compromised sperm protein phosphorylation after capacitation, swim-up, and zona pellucida exposure in teratospermic domestic cats
Cat sperm teratospermia tyrosine phosphorylation zona pellucida
2009/2/16
Tyrosine phosphorylated proteins recently have been found in mouse and human spermatozoa. Our objectives were to (1) determine if domestic cat spermatozoa also express tyrosine phosphorylated pro...
Relationship between morphology and motion characteristics of human spermatozoa in semen and in the swim-up sperm fractions
sperm morphology motility patterns swim-up separation
2009/2/6
In this study, the authors evaluated the morphology pattern and motion characteristics of human spermatozoa before and after swim-up separation. Samples were divided into two, morphologically diff...
Teratospermic and normospermic domestic cats：ejaculate traits, pituitary-gonadal hormones, and improvement of spermatozoal motility and morphology after swim-up processing
domestic cat sperm morphology teratospermia
2009/2/6
Electroejaculate traits, testicular volume, and circulating FSH, LH, and testosterone concentrations were compared between two populations of domestic cats consistently producing either a high (grea...
Ram Sperm Selection by a Dextran/Swim-Up Procedure Increases Fertilization Rates Following Intrauterine Insemination in Superovulated Ewes
Sperm quality reproductive efficiency IUI
2008/12/22
The objective of this study was to compare the efficacy of 2 dextran/swim-up media to increase the sperm quality parameters and the maintenance of these parameters at 15°C and 30°C over 6 hours. A...
Spontaneous DNA Fragmentation in Swim-Up Selected Human Spermatozoa During Long Term Incubation
DNA damage necrosis phosphatidylserine translocation reactive oxygen species sperm
2008/12/19
The origin and the meaning of DNA fragmentation in ejaculated human spermatozoa are not yet clear, although some hypotheses have been proposed. In the present study, we used investigated sperm DNA fra...
Aneuploidy and chromosome breakage in swim-up versus unprocessed semen from twenty healthy men
Aneuploidy chromosome breakage unprocessed semen twenty healthy men
2008/12/2
Toxicological and epidemiological studies have investigated several factors that are believed to induce cytogenetic damage in human sperm cells in an effort to estimate heritable risk to future gene...