Search results for "SPORTS"
showing 10 items of 4839 documents
Multi Regression Analysis of Skin Temperature Variation During Cycling Exercise
2017
In the last years, infrared thermography (IRT) has become a popular technique to determine human skin temperature during exercise [1–3]. IRT presents several applications in sport science such as the detection of injury, the thermophysiology assessment, the sport clothing assessment/design, or its application in equestrian sport, among others [3]. However, IRT in sports is still a recent topic and there are many fundamental discussions concerning different methodological aspects, being one of them the analysis of the thermal data [4].
Standardisiertes postoperatives Schmerztherapieschema in der Orthopädie
2006
In order to treat patients with postoperative acute pain effectively, we have developed a standardised algorithm for analgesia. This process includes three levels and the appropriate supply of medication. The therapy level is defined based on the scale of the operation. Accordingly, the prescription and handling of the pain medication is simplified for the attending physician and nurses. The pain level has to be measured by the nursing staff sing a visual analogue scale (VAS). Thus, the efficiency of the analgesics will be continuously evaluated and controlled. The standardised supply medication can be applied in those cases with pain levels > or = 4 (VAS). It is possible to up- or down-gra…
Inspiratory and Lower-Limb Strength Importance in Mountain Ultramarathon Running. Sex Differences and Relationship with Performance
2020
The study was aimed at comparing lower-limb strength and respiratory parameters between male and female athletes and their interaction with performance in a 107 km mountain ultramarathon. Forty seven runners (29 males and 18 females
Normative values for musculoskeletal- and neuromotor fitness in apparently healthy Norwegian adults and the association with obesity: a cross-section…
2016
Background Up-to-date research on musculoskeletal- and neuromotor fitness (MSMF) is lacking. The aims of the present paper were to a) establish normative values of MSMF by gender and age, and b) to assess how much of the variance in MSMF can be explained by obesity in adults. Methods A random selection of 726 Norwegians (20–65 years) participated in a national cross-sectional study. Muscular endurance, muscular strength, explosive power, flexibility and balance were assessed in addition to waist circumference (WC). Results Females displayed significantly higher scores compared to males on muscular endurance of the back extensors and on the flexibility tests (p < 0.001). Males displayed sign…
Both poor cardiorespiratory and weak muscle fitness are related to a high concentration of oxidized low-density lipoprotein lipids
2011
Good physical fitness is associated with favorable serum lipids. Oxidized low-density lipoprotein (ox-LDL) could be even more atherogenic than serum lipids. We studied the association of ox-LDL and serum lipids with physical fitness. Healthy young (mean age 25 years) men (n=846) underwent maximal oxygen uptake (VO(2max)) and muscle fitness index (MFI) tests and completed a leisure-time physical activity (LTPA) questionnaire. Age (ANCOVA1), age+waist circumference+systolic blood pressure+fasting blood glucose+smoking (ANCOVA3) were used as covariates. The groups with the lowest VO(2max), MFI and LTPA had 23%, 16% and 8% higher concentrations of ox-LDL than the groups with the highest VO(2max…
Comparing Active, Passive, and Combined Warm-Ups Among Junior Alpine Skiers in −7°C
2020
Context: Warming up in very cold climates and maintaining an elevated body temperature prior to a race is challenging for snow-sport athletes. Purpose: To investigate the effects of active (ACT), passive (PAS), and a combination of ACT and PAS (COM) warm-ups on maximal physical performance in a subzero environment among snow-sport athletes. Methods: Ten junior alpine skiers completed 3 experimental trials in −7.2 (0.2)°C. The ACT involved 5 minutes of moderate cycling, 3 × 15-second accelerations, a 6-second sprint, 5 countermovement jumps (CMJs), and a 10-minute passive transition phase, while in PAS, participants wore a lower-body heated garment for 24 minutes. In COM, participants comple…
I´m tired of being tired - Fatigue as experienced by women with fibromyalgia
2011
AbstractThe aim of the study was to explore how fatigue was experienced and explained in life stories of women with a long history of fibromyalgia to gain a deeper understanding of fatigue as a phenomenon. The data was drawn from the narrative interviews of 20 purposively chosen women with fibromyalgia. In the analysis, the ideas of episodic reading and paradigmatic analysis of narratives were used to find recurrent and repeated experiences of fatigue from the data. Five main themes emerged from the data: sleepless nights, physical weakness, loss of mental energy, social withdrawal and overwhelming exhaustion. The narratives indicated that in fibromyalgia, fatigue is a transient, extreme an…
Effect of Olympic Weight Category on Performance in the Roundhouse Kick to the Head in Taekwondo
2012
Effect of Olympic Weight Category on Performance in the Roundhouse Kick to the Head in Taekwondo In taekwondo, kick performance is generally measured using impact force and time. This study aimed to analyse performance in the roundhouse kick to the head according to execution distance between and within Olympic weight categories. The participants were 36 male athletes divided into three categories: featherweight (n = 10), welterweight (n = 15) and heavyweight (n = 11). Our results show that taekwondo athletes in all weight categories generate a similar relative impact force. However, the results indicate that weight has a large impact on kick performance, particularly in relation to total r…
Leucine supplementation and intensive training.
1999
Leucine, isoleucine and valine, the branched-chain amino acids (BCAA), make up about one-third of muscle protein. Of these, leucine has been the most thoroughly investigated because its oxidation rate is higher than that of isoleucine or valine. Leucine also stimulates protein synthesis in muscle and is closely associated with the release of gluconeogenic precursors, such as alanine, from muscle. Significant decreases in plasma or serum levels of leucine occur following aerobic (11 to 33%), anaerobic lactic (5 to 8%) and strength exercise (30%) sessions. In skeletal muscle, there is a decrease in leucine level and a reduction in glycogen stores during exhaustive aerobic exercise. Basal fast…
Quantitative ultrasonography of muscle: Detection of adaptations to training in elderly women
1996
Abstract Objective: To develop quantitative ultrasonography in studying the adaptation of quadriceps muscle mass and composition to short-term physical training and rehabilitation in elderly women. Design: Randomized control trial. Setting: Measurements in a research laboratory and training in a fitness center and sports hall. Participants: Forty-two women, aged 76 to 78 years, with no indications against intensive physical exercise, randomly assigned to strength ( n = 16), endurance ( n = 15), and control ( n = 11) groups. Twelve subjects from the strength, 12 from the endurance, and 11 from the control group completed the study. Intervention: Supervised physical training 3 times a week fo…