Physiological characteristics of successful mountain bikers and professional road cyclists.

abstract：:Chronic fatigue in the athletic population is a common but difficult diagnostic challenge for the sports physician. While a degree of fatigue may be normal for any athlete during periods of high-volume training, the clinician must be able to differentiate between this physiological fatigue and more prolonged, severe f...

journal_title：Journal of sports sciences

authors： Derman W,Schwellnus MP,Lambert MI,Emms M,Sinclair-Smith C,Kirby P,Noakes TD

更新日期：1997-06-01 00:00:00

abstract：:The aim of this study was to assess which of the equations that estimate peak power output and maximal oxygen uptake (VO2max) in the velodrome adapt best to the measurements made by reference systems. Thirty-four endurance cyclists and triathletes performed one incremental test in the laboratory and two tests in the v...

journal_title：Journal of sports sciences

authors： González-Haro C,Galilea PA,Escanero JF

更新日期：2008-04-01 00:00:00

abstract：:Twenty specialist marathon runners and 23 specialist ultra-marathon runners underwent maximal exercise testing to determine the relative value of maximum oxygen consumption (VO2max), peak treadmill running velocity, running velocity at the lactate turnpoint, VO2 at 16 km h-1, % VO2max at 16 km h-1, and running time in...

journal_title：Journal of sports sciences

authors： Noakes TD,Myburgh KH,Schall R

更新日期：1990-04-01 00:00:00

abstract：:This paper investigates how tennis players control stroke-induced vibration. Its aim is to characterise how a tennis player deals with entering vibration waves or how he/she has the ability to finely adjust them. A specific experimental procedure was designed, based on simultaneously collecting sets of kinematic, vibr...

journal_title：Journal of sports sciences

authors： Chadefaux D,Rao G,Androuet P,Berton E,Vigouroux L

更新日期：2017-08-01 00:00:00

abstract：:The aim of this study was to compare selected physiological variables and performance markers of soldiers from two "elite" units of the British Army. Ten soldiers from each of the two units were recruited for this study (n = 20). All participants completed three tests while carrying a 20 kg backpack load: (1) a maxima...

journal_title：Journal of sports sciences

authors： Simpson RJ,Gray SC,Florida-James GD

更新日期：2006-06-01 00:00:00

abstract：:A maximal multistage 20 m shuttle run test was designed to determine the maximal aerobic power of schoolchildren, healthy adults attending fitness class and athletes performing in sports with frequent stops and starts (e.g. basketball, fencing and so on). Subjects run back and forth on a 20 m course and must touch the...

journal_title：Journal of sports sciences

authors： Léger LA,Mercier D,Gadoury C,Lambert J

更新日期：1988-07-01 00:00:00

abstract：:The aim of this study was to devise a valid performance analysis system for the assessment of the movement characteristics associated with competitive amateur boxing and assess its reliability using analysts of varying experience of the sport and performance analysis. Key performance indicators to characterise the dem...

journal_title：Journal of sports sciences

authors： Thomson E,Lamb K,Nicholas C

更新日期：2013-01-01 00:00:00

abstract：:This study investigated whether repeated, very short duration sprints influenced endothelial function (indicated by flow-mediated dilation) and triacylglycerol concentrations following the ingestion of high-fat meals in adolescent boys. Nine adolescent boys completed two, 2-day main trials (control and exercise), in a...

journal_title：Journal of sports sciences

authors： Sedgwick MJ,Morris JG,Nevill ME,Barrett LA

更新日期：2015-01-01 00:00:00

abstract：:In the present study, we investigated the accuracy of offside judgements of assistant referees in the English Premier League. The moment in the match, the position and movement speed of the assistant referee, attacker and second-last defender, together with the angle of view for the assistant referee were all consider...

journal_title：Journal of sports sciences

authors： Catteeuw P,Gilis B,Wagemans J,Helsen W

更新日期：2010-03-01 00:00:00

abstract：:The aim of this study was to assess the effects of nicotinamide adenine dinucleotide hydride (NADH) on maximal oxygen uptake (VO2max), maximal anaerobic running time, and mental performance. Eight men were exposed to a supplement treatment (30 mg NADH as ENACHI tablets per day) and to a placebo treatment, each of 4 we...

journal_title：Journal of sports sciences

authors： Mero A,Raitanen R,Birkmayer J,Komi P

更新日期：2008-02-01 00:00:00

abstract：:Officiating bias is thought to contribute to home advantage. Recent research has shown that sports with subjective officiating tend to experience greater home advantage and that referees' decisions can be influenced by crowd noise, but little work has been done to examine whether individual referees vary in their home...

journal_title：Journal of sports sciences

authors： Boyko RH,Boyko AR,Boyko MG

更新日期：2007-09-01 00:00:00

abstract：:The aim of the present study was to examine reliability and construct convergent validity of Player Load™ (PL) from trunk-mounted accelerometry, expressed as a cumulative measure and an intensity measure (PL · min-1). Fifteen male participants twice performed an overground football match simulation that included four ...

journal_title：Journal of sports sciences

authors： Barreira P,Robinson MA,Drust B,Nedergaard N,Raja Azidin RMF,Vanrenterghem J

更新日期：2017-09-01 00:00:00

abstract：:The aim of this study was to explore the relationships between dimensions of social support and components of performance in tennis. A post-match performance measure was completed by 144 British tournament tennis players. Principal components analysis yielded eight components, labelled Execution of (Flexible) Plan, Lo...

journal_title：Journal of sports sciences

authors： Rees T,Ingledew DK,Hardy L

更新日期：1999-05-01 00:00:00

abstract：:In this article, we present a critical review of the swimming literature on body roll, for the purposes of summarizing and highlighting existing knowledge, identifying the gaps and limitations, and stimulating further research. The main research findings can be summarized as follows: swimmers roll their shoulders sign...

journal_title：Journal of sports sciences

authors： Psycharakis SG,Sanders RH

更新日期：2010-02-01 00:00:00

abstract：:The cognitive effects of acute aerobic exercise were investigated in endurance-trained individuals. On two occasions, 21 cyclists; 11 male (VO2max: 57 ± 9 mL·kg-1·min-1) and 10 female (VO2max: 51 ± 9 mL·kg-1·min-1), completed 45 min of fixed, moderate-intensity (discontinuous) cycling followed by an incremental ride t...

journal_title：Journal of sports sciences

authors： McCartney D,Desbrow B,Irwin C

更新日期：2021-01-01 00:00:00

abstract：:An evaluation of a six-week Combined minimal footwear transition and gait-retraining combination vs. gait retraining only on impact characteristics and leg stiffness. Twenty-four trained male runners were randomly assigned to either (1) Minimalist footwear transition Combined with gait-retraining over a six-week perio...

journal_title：Journal of sports sciences

authors： Warne JP,Smyth BP,Fagan JO,Hone ME,Richter C,Nevill AM,Moran KA,Warrington GD

更新日期：2017-08-01 00:00:00

abstract：:The aim of this study was to determine the variations in substrate utilization between men and women matched for ventilatory threshold (Tvent) during incremental arm cranking and leg cycling exercise at 70, 85, 100 and 115% of the mode-specific Tvent. Recreationally active men (n=12) and women (n=10) with similar valu...

journal_title：Journal of sports sciences

authors： Yasuda N,Ruby BC,Gaskill SE

更新日期：2006-12-01 00:00:00

abstract：:Coaches are central to talent development in youth soccer and what they say and do impacts on players' achievements and well-being. Researchers have systematically observed coach behaviour and practice activities within this setting (i.e. 'what coaches do'). We review this research in light of contemporary discussion ...

journal_title：Journal of sports sciences

authors： Cushion C,Ford PR,Williams AM

更新日期：2012-01-01 00:00:00

abstract：:The aim of this study was to quantify the acute impact of soccer match officiating on selected physiological and physical performance measures. Twenty-four officials from the Spanish National 3rd Division participated in this study. External global positioning system and internal (heart rate) load data were collected ...

journal_title：Journal of sports sciences

authors： Castillo D,Yanci J,Cámara J,Weston M

更新日期：2016-01-01 00:00:00

abstract：:This study investigated the effects of knee localised muscle damage on running kinematics at varying speeds. Nineteen young women (23.2 ± 2.8 years; 164 ± 8 cm; 53.6 ± 5.4 kg), performed a maximal eccentric muscle damage protocol (5 × 15) of the knee extensors and flexors of both legs at 60 rad · s(-1). Lower body kin...

journal_title：Journal of sports sciences

authors： Tsatalas T,Giakas G,Spyropoulos G,Sideris V,Lazaridis S,Kotzamanidis C,Koutedakis Y

更新日期：2013-01-01 00:00:00

abstract：:To determine the effect of circadian rhythm on neuromuscular responses and kinematics related to physical tennis performance, after a standardised warm-up, 13 highly competitive male tennis players were tested twice for serve velocity/accuracy (SVA), countermovement vertical jump (CMJ), isometric handgrip strength (IS...

journal_title：Journal of sports sciences

authors： López-Samanes Á,Moreno-Pérez D,Maté-Muñoz JL,Domínguez R,Pallarés JG,Mora-Rodriguez R,Ortega JF

更新日期：2017-11-01 00:00:00

abstract：:The purpose was to assess the mechanical work and physiological responses to cross country mountain bike racing. Participants (n = 7) cycled on a cross country track at race speed whilst VO2, power, cadence, speed, and geographical position were recorded. Mean power during the designated start section (68.5 ± 5.5 s) w...

journal_title：Journal of sports sciences

authors： Macdermid PW,Stannard S

更新日期：2012-01-01 00:00:00

abstract：:Parkour landing techniques differ from performances of other sports as they are practiced in urban spaces with uncontrolled surfaces and drop heights. Due to the relatively young age of the sport, few studies have tried to understand how practitioners - called traceurs - succeed at performing these dynamic performance...

journal_title：Journal of sports sciences

authors： Maldonado G,Soueres P,Watier B

更新日期：2018-11-01 00:00:00

abstract：:The aim of present study was to examine the relationships between serum and salivary values of free testosterone, dehydroepiandrosterone, and cortisol before and after a session of resistance exercise. Twenty-eight healthy men (mean age 40 years, s = 4) participated in the present study. Serum and salivary samples wer...

journal_title：Journal of sports sciences

authors： Cadore E,Lhullier F,Brentano M,Silva E,Ambrosini M,Spinelli R,Silva R,Kruel L

更新日期：2008-08-01 00:00:00

abstract：:While empirical evidence suggests that elite athletes have superior lifespan outcomes relative to the general population, less is known regarding their causes of death. The purpose of this study was to critically examine the mortality outcomes of deceased National Basketball Association and American Basketball Associa...

journal_title：Journal of sports sciences

authors： Lemez S,Wattie N,Lawler T,Baker J

更新日期：2018-07-01 00:00:00

abstract：:The quadruple approach in the title refers to four different studies over a period of 3 years. The common factor in these studies is the methodology of the (Brussels) Electromyographic Signal Processing and Analysis System (ESPAS), a hardware and software EMG data acquisition system that has constantly been improved. ...

journal_title：Journal of sports sciences

authors： Clarys JP,Cabri J,Bollens E,Sleeckx R,Taeymans J,Vermeiren M,Van Reeth G,Voss G

更新日期：1990-01-01 00:00:00

abstract：:In this article, we examine the question of what information is processed during observational learning by evaluating a variety of methods, theories, and empirical data. Initially, we review work involving neuroimaging techniques and infant imitation. We then evaluate data from behavioural experiments involving adults...

journal_title：Journal of sports sciences

authors： Hodges NJ,Williams AM,Hayes SJ,Breslin G

更新日期：2007-03-01 00:00:00

abstract：:We examined sexual dimorphism in the anthropometry of 68 Australasian and Pacific powerlifters (14 females, 54 males) who were competing in one of two national or international powerlifting competitions held in New Zealand. All powerlifters were assessed for 37 anthropometric dimensions by ISAK (International Society ...

journal_title：Journal of sports sciences

authors： Keogh JW,Hume PA,Pearson SN,Mellow P

更新日期：2008-03-01 00:00:00

abstract：:This study aimed to investigate the effects of different training modalities on the soluble Klotho (S-Klotho) plasma levels in sedentary middle-aged adults. A total of 74 middle-aged adults (53.4 ± 5.0 years old; 52.7% women) were enrolled in the FIT-AGEING study. We conducted a 12-week randomised controlled trial. Th...

journal_title：Journal of sports sciences

authors： Amaro-Gahete FJ,De-la-O A,Jurado-Fasoli L,Espuch-Oliver A,de Haro T,Gutierrez A,Ruiz JR,Castillo MJ

更新日期：2019-10-01 00:00:00

abstract：:The purpose of this study was to analyse the effect of bike type - the 26-inch-wheel bike (26" bike) and the 29-inch-wheel bike (29" bike) - on performance in elite mountain bikers. Ten Swiss National Team athletes (seven males, three females) completed six trials with individual start on a simulated cross-country cou...

journal_title：Journal of sports sciences

authors： Steiner T,Müller B,Maier T,Wehrlin JP

更新日期：2016-08-01 00:00:00