Effect of a Home-based Balance Training Protocol on Dynamic Postural Control in Subjects with Chronic Ankle Instability.

abstract：:Cyclists often use heart rate limits or power output zones, obtained from lactate parameters during incremental exercise testing, to control training intensity. However, the relationship between heart rate or power output, and blood lactate can be changed by several factors including dehydration. Therefore, in the cur...

journal_title：International journal of sports medicine

authors： Van Schuylenbergh R,Vanden Eynde B,Hespel P

更新日期：2005-12-01 00:00:00

abstract：:The effects of anabolic agents and training on skeletal muscle are believed to be mediated by a variety of growth and transcription factors. Among these regulatory proteins, insulin-like growth factor-I (IGF-I) and androgen receptor (AR) play a crucial role. The purpose of this study was to investigate the effects of ...

journal_title：International journal of sports medicine

authors： Matsakas A,Nikolaidis MG,Kokalas N,Mougios V,Diel P

更新日期：2004-10-01 00:00:00

abstract：:The electromyographic (EMG) activity of seven muscles of the trunk and lower extremity in five male masters level ski racers during a slalom turn in both alpine skiing and in-line skating was recorded using a telemetry system. Measurements were made on separate testing days using slopes commonly used in each activity ...

journal_title：International journal of sports medicine

authors： Zeglinksi CM,Swanson SC,Self BP,Greenwald RM

更新日期：1998-10-01 00:00:00

abstract：:Since the introduction of blood analysis performed before major cycling events in 1997, there have been discussions concerning the quality of the results. The aim of our study therefore was to measure blood samples and compare the results obtained on the field with those obtained in the laboratory. For this it was nec...

journal_title：International journal of sports medicine

authors： Robinson N,Schattenberg L,Zorzoli M,Mangin P,Saugy M

更新日期：2005-04-01 00:00:00

abstract：:The purpose of this study was to determine the effect of a reduced ventilatory frequency (Vf) on blood gases and acid-base changes during three intensities of cycling exercise. VO2max and lactate threshold workload (LaT) of six subjects were assessed on a Monark ergometer. Experimental rides were performed 1) with no ...

journal_title：International journal of sports medicine

authors： Sharp RL,Williams DJ,Bevan L

更新日期：1991-02-01 00:00:00

abstract：:Screening for cardiac health should involve relevant parameters or indices that are easy and inexpensive to obtain. Various cardiac adaptation mechanisms develop during regular exercise that are affected by many factors, and these are reflected on a surface electrocardiogram. QT dispersion has been considered a surrog...

journal_title：International journal of sports medicine

authors： Kasikcioglu E,Kayserilioglu A,Yildiz S,Akhan H,Cuhadaroglu C

更新日期：2004-04-01 00:00:00

abstract：:The purpose of this study was to examine whether mental fatigue influences the perceived effort required to complete fairly light and hard effort self-paced exercise challenges. 12 participants completed 2 trials in a randomised cross-over design. Each participant was required to complete a time-matched pre-exercise t...

journal_title：International journal of sports medicine

authors： Brownsberger J,Edwards A,Crowther R,Cottrell D

更新日期：2013-12-01 00:00:00

abstract：:Hemoglobin oxygen binding properties and acid-base status were investigated in Colombian athletes (A) and controls (C) from Cali (C-1000 m) and Bogotá (B-2600 m). [Hb] and Hct values were not influenced by altitude, but Hct was lower in the blood of athletes (in Cali 2.6%, in Bogotá 1.4%). Both training and altitude p...

journal_title：International journal of sports medicine

authors： Schmidt W,Dahners HW,Correa R,Ramirez R,Rojas J,Böning D

更新日期：1990-02-01 00:00:00

abstract：:This study aimed to describe injury/illness rates in ultratrail runners competing in a 65-km race to build a foundation for injury prevention and help race organizers to plan medical provision for these events. Prospectively transcribed medical records were analysed for 77 athletes at the end of the race. Number of in...

journal_title：International journal of sports medicine

authors： Vernillo G,Savoldelli A,La Torre A,Skafidas S,Bortolan L,Schena F

更新日期：2016-06-01 00:00:00

abstract：:The purpose of this study was to examine whether lower body positive pressure (LBPP) could improve maximal performance in paraplegic subjects (P). LBPP may diminish venous blood pooling (VBP) below the lesion and, therefore, support the redistribution of blood during exercise. Twelve male P subjects with complete spin...

journal_title：International journal of sports medicine

authors： Hopman MT,Kamerbeek IC,Pistorius M,Binkhorst RA

更新日期：1993-10-01 00:00:00

abstract：:This study investigated neuromuscular adaptations of the knee extensors after 8 weeks of plyometric training. 23 subjects were randomly assigned to an intervention group and a control group. We measured isometric maximum voluntary torque (iMVT), rate of torque development (RTD) and impulse (IMP) over different time in...

journal_title：International journal of sports medicine

authors： Behrens M,Mau-Moeller A,Bruhn S

更新日期：2014-02-01 00:00:00

abstract：:The purpose of this randomized cross-over study was to investigate the effects of a 4-min long, 2-mm vertically-vibrating vibration-exercise on muscle performance and body balance in healthy subjects. Sixteen volunteers (eight men and women aged 18-35 years) underwent both the 4-min vibration- and sham-interventions i...

journal_title：International journal of sports medicine

authors： Torvinen S,Sievänen H,Järvinen TA,Pasanen M,Kontulainen S,Kannus P

更新日期：2002-07-01 00:00:00

abstract：:The purpose of this study was to examine electromyographic changes of the agonist and antagonist muscles during fatigue. Nine healthy, untrained subjects exerted a maximum voluntary heel lifting contraction with their dominant limb. The EMG activity over the soleus and the tibialis anterior muscles was recorded during...

journal_title：International journal of sports medicine

authors： Patikas D,Michailidis C,Bassa H,Kotzamanidis C,Tokmakidis S,Alexiou S,Koceja DM

更新日期：2002-05-01 00:00:00

abstract：:Dietary intake, plasma lipids, lipoprotein and apolipoprotein levels, anthropometric measurements and anaerobic performance were studied in eleven judo athletes during a period of weight maintenance (T1) and after a 7d food restriction (T2). Dietary data were collected using a 7-day diet record. Nutrient analysis indi...

journal_title：International journal of sports medicine

authors： Filaire E,Maso F,Degoutte F,Jouanel P,Lac G

更新日期：2001-08-01 00:00:00

abstract：:The aim of the present study was to investigate why blood lactate after prolonged quadriceps contraction during hiking is only marginally increased. Eight sailors performed five 3-min hiking bouts interspersed with 5-s recovery periods. Whole body oxygen uptake, heart rate and lactate were recorded, along with continu...

journal_title：International journal of sports medicine

authors： Vogiatzis I,Tzineris D,Athanasopoulos D,Georgiadou O,Geladas N

更新日期：2008-01-01 00:00:00

abstract：:The O2 equivalent of lactic acid accumulation in blood was estimated from data on ten subjects acclimatized to altitudes up to 6500 m in the course of a Mt. Everest expedition. The calculated value of the O2 equivalent of La by standard least squares regression was 2.07 +/- 0.4 l O2 for a rise of blood lactic acid con...

journal_title：International journal of sports medicine

authors： Cerretelli P,Binzoni T

更新日期：1990-02-01 00:00:00

abstract：BACKGROUND:The purpose of this study was to examine some motor performance aspects of the unloaded lower extremity after Achilles tendon rupture repair. The measured motor performance aspects were simple reaction time, choice reaction time, speed of movement, foot tapping speed, and coordination. METHODS:Ninety patien...

journal_title：International journal of sports medicine

authors： Kauranen KJ,Leppilahti JI

更新日期：2001-02-01 00:00:00

abstract：:This study was undertaken to determine which of the two commonly used field tests, the 20-meter shuttle run test (20-MST) or the University of Montreal track test (UM-TT), provides the most accurate assessment of maximal and functional aerobic capacity in moderately trained athletes. Eleven male subjects aged from 18 ...

journal_title：International journal of sports medicine

authors： Ahmaidi S,Collomp K,Caillaud C,Préfaut C

更新日期：1992-04-01 00:00:00

abstract：:This study has attempted to describe the fiber composition and respiratory potential in the leg (gastrocnemius) muscle of highly trained, elite female distance runners. As noted, many of these women were competing successfully in middle-distance (1500-3000 m) rather than long distance (10 km and marathon) events. This...

journal_title：International journal of sports medicine

authors： Costill DL,Fink WJ,Flynn M,Kirwan J

更新日期：1987-11-01 00:00:00

abstract：:Physiological characteristics of japanese female classical ballet dancers were investigated in comparison with sedentary women of similar age (non-dancers). Subjects were 20 professional female ballet dancers with a mean age of 26.5 +/- 4.4 years (mean +/- SD) and 66 sedentary women with a mean age of 23.7 +/- 3.6 yea...

journal_title：International journal of sports medicine

authors： Kuno M,Fukunaga T,Hirano Y,Miyashita M

更新日期：1996-02-01 00:00:00

abstract：:This study compared physiological responses associated with exercise tolerance in girls (G) and women (W) of similar fitness and heat acclimatization level during exercise in a hot and humid outdoor environment (33.4 degrees C and 55.1 % RH; WBGT = 29.9 +/- 0.2 degrees C). Nine pre-menarcheal G (age = 11.3 yr) and nin...

journal_title：International journal of sports medicine

authors： Rivera-Brown AM,Rowland TW,Ramírez-Marrero FA,Santacana G,Vann A

更新日期：2006-12-01 00:00:00

abstract：:We investigated how inspiratory muscle training impacted respiratory and locomotor muscle deoxygenation during submaximal exercise with resistive inspiratory loading. 16 male cyclists completed 6 weeks of either true (n=8) or sham (n=8) inspiratory muscle training. Pre- and post-training, subjects completed 3, 6-min e...

journal_title：International journal of sports medicine

authors： Turner LA,Tecklenburg-Lund SL,Chapman R,Shei RJ,Wilhite DP,Mickleborough T

更新日期：2016-07-01 00:00:00

abstract：:The aims of the study were to investigate the presence of a relative age effect and the influence of birth quarter on anthropometric characteristics, an estimation of biological maturity and performance in the Yo-Yo Intermittent Recovery Test level 1 in 606 elite, Flemish youth soccer players. The sample was divided i...

journal_title：International journal of sports medicine

authors： Deprez D,Vaeyens R,Coutts AJ,Lenoir M,Philippaerts R

更新日期：2012-12-01 00:00:00

abstract：:To study the effects of long-term, home-based exercise on physical fitness and cardiovascular risk factors of middle-aged nonsmoking males, a controlled study was conducted in 61 sedentary Swiss men. Thirty-nine men were randomly allocated to jog 2 h/week for 4 months on an individually prescribed and heart-rate-contr...

journal_title：International journal of sports medicine

authors： Suter E,Marti B,Tschopp A,Wanner HU,Wenk C,Gutzwiller F

更新日期：1990-12-01 00:00:00

abstract：:To assess changes of sex hormones, cortisol, prolactin (PRL) and beta-endorphins in an exhaustive aerobic performance, blood samples were taken in 11 endurance trained runners (R) along an ultra-marathon race of 110 km (T1 before the start, T2 at km 33, T3 at km 75 and T4 immediately after completing the race). Result...

journal_title：International journal of sports medicine

authors： Fournier PE,Stalder J,Mermillod B,Chantraine A

更新日期：1997-05-01 00:00:00

abstract：:During rowing, the respiratory musculature is confronted with dual demands: assisting the propulsive force generation and as the effector for ventilatory control. We determined the pulmomechanical and breathing pattern features of rowing-induced hyperpnea in five national class rowers (18 years old). Each subject perf...

journal_title：International journal of sports medicine

authors： Steinacker JM,Both M,Whipp BJ

更新日期：1993-09-01 00:00:00

abstract：:To test the effects of different modes of exercise on indices of protein catabolism, eight adult males on a meat-free diet performed single 60-min bouts of concentric and eccentric cycle ergometer exercise in two 7-day periods. Although the absolute intensities for the two exercise bouts were similar, VO2 averaged 70%...

journal_title：International journal of sports medicine

authors： Plante PD,Houston ME

更新日期：1984-08-01 00:00:00

abstract：:The between-days variability in ascertained gain factors for calibration of a wearable respiratory inductance plethysmograph (RIP) and validity thereof for the repeated use during exercise were examined. Consecutive 5-min periods of standing still, slow running at 8 km·h(-1), fast running at 14 km·h(-1) (male) or 12 k...

journal_title：International journal of sports medicine

authors： Heyde C,Mahler H,Roecker K,Gollhofer A

更新日期：2015-01-01 00:00:00

abstract：:The objective of our study was to evaluate the effect of taping on the dynamic postural stability during a jump landing protocol in subjects with chronic ankle instability (CAI). For this purpose, 28 subjects with CAI performed a sagittal and frontal plane landing task in a non-taped and taped condition. As main outco...

journal_title：International journal of sports medicine

authors： De Ridder R,Willems TM,Vanrenterghem J,Roosen P

更新日期：2015-04-01 00:00:00

abstract：:The aim of the present study was to investigate the relationships between heart rate variability (HRV) changes and both training variations and performances in elite swimmers. A secondary purpose was to measure catecholamine urinary excretion in elite swimmers to validate the HRV indices of sympathetic activity during...

journal_title：International journal of sports medicine

authors： Atlaoui D,Pichot V,Lacoste L,Barale F,Lacour JR,Chatard JC

更新日期：2007-05-01 00:00:00