The response of sexual and stress hormones of male pro-cyclists during continuous intense competition.

abstract：:The aim of the present study was to understand if sport improves attention symptoms, social competency, and cognitive functions in children with attention deficit and hyperactivity disorder (ADHD). The present study was designed as a 6-week, prospective trial, including 12 sessions of education/sports therapy. 13 ADHD...

journal_title：International journal of sports medicine

authors： Kang KD,Choi JW,Kang SG,Han DH

更新日期：2011-12-01 00:00:00

abstract：:One hundred fourteen subjects (34 +/- 8 years) without any competition background took part in an endurance training study to be completed after 1.5 years with running a marathon. Ultimately, 60 males and 18 females achieved that goal. The training program, carefully supervised, was divided into three phases with a ma...

journal_title：International journal of sports medicine

authors： Verstappen FT,Janssen GM,Does RJ

更新日期：1989-10-01 00:00:00

abstract：:This study investigated whether the combination of internal precooling (PC) and internal midcooling (MC cooling during exercise) would enhance performance more than MC alone. 9 trained males completed two 30-km cycling trials in a hot and humid environment (WBGT: 29±0.7°C, 80±0.02% relative humidity). For 30 min befor...

journal_title：International journal of sports medicine

authors： Riera F,Trong TT,Rinaldi K,Hue O

更新日期：2016-12-01 00:00:00

abstract：:The albuminuria occurring after swimming in splenectomized dogs was investigated. Swimming in splenectomized dogs induces metabolic acidosis, a decrease in renal vascular conductance, and an increase in plasma renin activity, all three factors possibly implicated in the occurrence of albuminuria. The administration of...

journal_title：International journal of sports medicine

authors： Joles JA,Nicaise E,Sanders M,Schot A

更新日期：1984-12-01 00:00:00

abstract：:The salivary immunoglobulin A (s-IgA) and cortisol responses to maximal exercise were examined in 24 adult males (X +/- SD; 22.1 +/- 3.0 yrs) before and after 10 weeks of run training. The subjects performed an incremental treadmill test to exhaustion and were randomly assigned to one of three groups: control (CON; n ...

journal_title：International journal of sports medicine

authors： McDowell SL,Hughes RA,Hughes RJ,Housh TJ,Johnson GO

更新日期：1992-11-01 00:00:00

abstract：:The early vascular adaptation to indoor cycling, a popular activity at many fitness centres, is incompletely evaluated. Forty two healthy women (21-45 years) underwent measurements of arterial wall properties and geometry as well as a maximal bicycle exercise test before and after a 3 months period during which 21 of ...

journal_title：International journal of sports medicine

authors： Bjarnegård N,Hedman K,Länne T

更新日期：2019-04-01 00:00:00

abstract：:The phase angle is used to evaluate nutritional status and is an indicator of cellular health. Cardiorespiratory fitness and body composition are strong indicators of health during adolescence. We aimed to evaluate if body composition and cardiorespiratory fitness have an association with phase angle among adolescents...

journal_title：International journal of sports medicine

authors： Langer RD,de Fatima Guimarães R,Gonçalves EM,Guerra-Junior G,de Moraes AM

更新日期：2020-08-01 00:00:00

abstract：:Two well-trained speed-skaters were subjected to a biomechanical analysis incorporating push-off forces, cinematographic data, and link segment modeling. To gain knowledge on the backgrounds on technique and performance in speed-skating, the muscle coordination was studied by EMG and muscle contraction velocities. In ...

journal_title：International journal of sports medicine

authors： de Boer RW,Cabri J,Vaes W,Clarijs JP,Hollander AP,de Groot G,van Ingen Schenau GJ

更新日期：1987-12-01 00:00:00

abstract：:The present series of experiments were conducted to access the surface EMG frequency parameters during repeated fingertip isometric contractions to determine if they can be used as a fatigue index under specific grip used in rock climbing. Electromyograms of the finger flexors and extensors were characterised in ten e...

journal_title：International journal of sports medicine

authors： Quaine F,Vigouroux L,Martin L

更新日期：2003-08-01 00:00:00

abstract：:Patellofemoral joint (PFJ) pain syndrome is a commonly reported form of pain in female runners and military personnel. Increased PFJ stress may be a contributing factor. Few studies have examined PFJ stress running with added load. Our purpose was to analyze PFJ stress, PFJ reaction force, quadriceps force, knee flexi...

journal_title：International journal of sports medicine

authors： Kujawa M,Goerlitz A,Rutherford D,Kernozek TW

更新日期：2020-06-01 00:00:00

abstract：:This study aimed at investigating to what extent sauna-induced dehydration is effective to rapidly decrease body weight and whether this practice alters strength and/or explosive power (jump capacity) in healthy athletes. We also investigated whether the observed changes could be rapidly reversed through rehydration. ...

journal_title：International journal of sports medicine

authors： Gutiérrez A,Mesa JL,Ruiz JR,Chirosa LJ,Castillo MJ

更新日期：2003-10-01 00:00:00

abstract：:This study investigated the effects of marine phytoplankton supplementation on 1) perceived recovery and ground reaction forces in humans following a non-functional overreaching resistance-training program and 2) myogenic molecular markers associated with muscle cell recovery in a rat model. In the human trial, a 5-we...

journal_title：International journal of sports medicine

authors： Sharp MH,Sahin K,Stefan MW,Gheith RH,Reber DD,Ottinger CR,Orhan C,Tuzcu M,Sahin N,Lowery RP,Durkee S,Wilson JM

更新日期：2020-12-22 00:00:00

abstract：:The peripheral adaptation process associated with repeating eccentric training over a longer period of time was studied in m. vastus lateralis of eleven healthy males aged 24 +/- 4 years. The maximal dynamic concentric muscle strength was only slightly improved after 8 weeks of training. However, eccentric work capaci...

journal_title：International journal of sports medicine

authors： Fridén J,Seger J,Sjöström M,Ekblom B

更新日期：1983-08-01 00:00:00

abstract：:This study examined injury and physical fitness outcomes in Basic Combat Training (BCT) during implementation of Physical Readiness Training (PRT). PRT is the U.S. Army's emerging physical fitness training program. An experimental group (EG, n = 1284), which implemented the PRT program, was compared to a control group...

journal_title：International journal of sports medicine

authors： Knapik JJ,Hauret KG,Arnold S,Canham-Chervak M,Mansfield AJ,Hoedebecke EL,McMillian D

更新日期：2003-07-01 00:00:00

abstract：:The aim of this study was to examine the relationship between anthropometry, physical capacity, and sprint swimming performance in swimmers of both genders aged 12 - 14 years old. Anthropometric characteristics (body height and mass, total upper extremity, hand and foot lengths, chest circumference, certain body bread...

journal_title：International journal of sports medicine

authors： Geladas ND,Nassis GP,Pavlicevic S

更新日期：2005-03-01 00:00:00

abstract：:The purpose of this study was to analyse the effects of an exhaustive exercise on arm coordination and intracyclic velocity variations (IVV) to better understand the ways in which they are modified under fatigue conditions. Seventeen competitive swimmers performed a 200-m all-out test and a set of two 25-m (before and...

journal_title：International journal of sports medicine

authors： Alberty M,Sidney M,Huot-Marchand F,Hespel JM,Pelayo P

更新日期：2005-07-01 00:00:00

abstract：:Eighteen male marathon runners (mean marathon performance: 2 h 36 min, SD = 7.0 min; VO2 max = 64.1 +/- 15.1 ml/kg . min-1) were submitted to a needle biopsy in the suprailiac region and to various measurements of body fatness: percent body fat (% fat), seven skinfold thicknesses, and mean fat cell diameter. Basal and...

journal_title：International journal of sports medicine

authors： Savard R,Després JP,Deshaies Y,Marcotte M,Bouchard C

更新日期：1985-10-01 00:00:00

abstract：:Changes in body components occur over a season, but their impact on performance is still unclear. We aimed to analyze the relationship between changes in leg strength and jump performance with body composition over a season in highly trained athletes. Measures from the beginning to the main competitive periods of a se...

journal_title：International journal of sports medicine

authors： Silva AM,Matias CN,Santos DA,Rocha PM,Minderico CS,Sardinha LB

更新日期：2014-12-01 00:00:00

abstract：:The effect of 60 h without sleep upon maximal oxygen intake was examined in 12 young women, using a cycle ergometer protocol. The arousal of the subjects was maintained by requiring the performance of a sequence of cognitive tasks throughout the experimental period. Well-defined oxygen intake plateaus were obtained bo...

journal_title：International journal of sports medicine

authors： Goodman J,Radomski M,Hart L,Plyley M,Shephard RJ

更新日期：1989-12-01 00:00:00

abstract：:We used continuous electrocardiographic monitoring according to Holter's method for a tentative evaluation of the prognostic value of the main electrocardiographic peculiarities of the "athlete's heart". Five hundred and eighty-seven Holter recordings were performed in 164 top athletes divided into three groups: dynam...

journal_title：International journal of sports medicine

authors： Carre F,Chignon JC

更新日期：1991-04-01 00:00:00

abstract：:Training effects on peak oxygen consumption (VO2), specific to the mode of movement, are well-known in exercise training of young, healthy adults. However, these specific training effects were never studied in patients with coronary artery disease, but may be important in the evaluation of training effects of cardiac ...

journal_title：International journal of sports medicine

authors： Nieuwland W,Berkhuysen MA,Landsman ML,Lie KI,Rispens P

更新日期：1998-07-01 00:00:00

abstract：:The use of aero style handlebars has gained popularity in triathlons and individual time trial events recently. The effect of using these handlebars has only been examined during short term exercise. It was the aim of this investigation to compare time to exhaustion and selected measures of ventilation, gas exchange a...

journal_title：International journal of sports medicine

authors： Berry MJ,Pollock WE,van Nieuwenhuizen K,Brubaker PH

更新日期：1994-01-01 00:00:00

abstract：:Orthostatic tolerance is impaired following an acute bout of exercise. This study examined the effect of fluid ingestion following treadmill exercise in restoring the cardiovascular responses to an orthostatic stress. Five men (age, 29.6 +/- 3.4 yrs) were exposed to a graded lower body negative (LBNP) pressure protoco...

journal_title：International journal of sports medicine

authors： Davis JE,Fortney SM

更新日期：1997-04-01 00:00:00

abstract：:The purpose of this study was to assess the reliability of a pre-loaded 1 500-m treadmill time trial, conducted in moderate normobaric hypoxia. 8 trained runners/triathletes (24±3 years, 73.2±8.1 kg, 182.5±6.5 cm, altitude specific V˙O2max: 52.9±5.5 ml·kg(-1)·min(-1)) completed 3 trials (the first as a familiarisation...

journal_title：International journal of sports medicine

authors： Shannon O,Barlow M,Duckworth L,Woods DR,Barker T,Grindrod A,Griffiths A,O'Hara JP

更新日期：2016-09-01 00:00:00

abstract：:Fitness, and specifically body composition of football referees requires attention in order to achieve the highest possible standards. The aim of the present study was to describe body composition of elite Spanish football referees over 11 years. Data from 2001 to 2012 pre-seasons were analyzed from a total of 470 ref...

journal_title：International journal of sports medicine

authors： Casajús JA,Gonzalez-Aguero A

更新日期：2015-06-01 00:00:00

abstract：:High-speed running and sprinting training play an important role in the development of physical capabilities, sport-specific performance and injury prevention among soccer players. This commentary aims to summarize the current evidence regarding high-speed running and sprinting training in professional soccer and to i...

journal_title：International journal of sports medicine

authors： Beato M,Drust B,Iacono AD

更新日期：2020-12-08 00:00:00

abstract：:Excessive and prolonged exposure to impact acceleration during running is associated with increased injury rate. Acute use of compressive garments has been speculated to improve attenuation. However, it is unknown how longer interventions of compressive garments influence attenuation in running. 40 runners trained wit...

journal_title：International journal of sports medicine

authors： Lucas-Cuevas AG,Priego-Quesada JI,Aparicio I,Giménez JV,Llana-Belloch S,Pérez-Soriano P

更新日期：2015-10-01 00:00:00

abstract：:Controversy exists as to whether plasma volume (PV) expansion has the potential to increase maximal oxygen uptake (VO2max). In the present study, VO2max and exercise time to fatigue were measured in nine untrained men when plasma volume (PV) was normal and then again on the next day following two levels of PV expansio...

journal_title：International journal of sports medicine

authors： Coyle EF,Hopper MK,Coggan AR

更新日期：1990-04-01 00:00:00

abstract：:Over 30 years ago hemodynamic studies on patients with high altitude pulmonary edema (HAPE) excluded the prior contention that the basic cause was left ventricular failure and correctly implicated the pulmonary circulation as the culprit. Physiological studies during the acute stage have revealed a normal pulmonary ar...

journal_title：International journal of sports medicine

authors： Hultgren HN

更新日期：1997-01-01 00:00:00

abstract：:The purpose of this article is to present how predictive machine learning methods can be utilized for detecting sport injury risk factors in a data-driven manner. The approach can be used for finding new hypotheses for risk factors and confirming the predictive power of previously recognized ones. We used three-dimens...

journal_title：International journal of sports medicine

authors： Jauhiainen S,Kauppi JP,Leppänen M,Pasanen K,Parkkari J,Vasankari T,Kannus P,Äyrämö S

更新日期：2020-09-13 00:00:00