Inertial Sensors are a Valid Tool to Detect and Consistently Quantify Jumping.

abstract：:This study was a retrospective examination of the relationship between estimated dietary sodium intake and training-induced changes in plasma volume (PV). It was undertaken to explore one possible explanation for the large individual differences in PV shifts accompanying 3 d of endurance cycling. Ten healthy males rod...

journal_title：International journal of sports medicine

authors： Luetkemeier MJ

更新日期：1995-10-01 00:00:00

abstract：:Stretching of an activated muscle prior to its shortening enhances its performance during the concentric contraction. This phenomenon has been interpreted to be primarily due to the utilization of elastic energy stored in the series elastic elements of the muscle during the stretch. However, reflex potential has also ...

journal_title：International journal of sports medicine

authors： Bosco C,Tarkka I,Komi PV

更新日期：1982-08-01 00:00:00

abstract：:The purpose of this study was to establish the content validity of the Rodeo SCAT for the sport of rodeo and bull riding. The study design was comprised of expert consensus and content validation. A modified Ebel procedure was employed to content validate the rodeo SCAT. Content validation using this method includes e...

journal_title：International journal of sports medicine

authors： Lafave MR,Butterwick DJ,Murray RP,Freeman T,Lau BH

更新日期：2013-02-01 00:00:00

abstract：:The effects of physical activity (PA) on bioenergetic characteristics were studied in 53 prepubertal boys. Maximal oxygen consumption (VO2max; direct method), maximal anaerobic power (Pmax, force-velocity test), and mean power in 30 s (P30s, Wingate test) were compared (mean +/- SD) in three groups of boys of the same...

journal_title：International journal of sports medicine

authors： Falgairette G,Duche P,Bedu M,Fellmann N,Coudert J

更新日期：1993-11-01 00:00:00

abstract：:The objectives of this study were to 1) continuously assess oxygen uptake during and after difficult sport rock climbing and 2) to evaluate the effects of active versus passive recovery on post-climbing blood lactate and hand grip strength. Fifteen expert rock climbers attempted to climb (i.e., red point lead) a 20 m ...

journal_title：International journal of sports medicine

authors： Watts PB,Daggett M,Gallagher P,Wilkins B

更新日期：2000-04-01 00:00:00

abstract：:This study investigated the effects of a training taper on muscle damage indices and performance. Two matched groups of seven male runners each performed two self paced half-marathons on a motorised treadmill. After the first half-marathon one group maintained their normal weekly training volume, while the taper group...

journal_title：International journal of sports medicine

authors： Child RB,Wilkinson DM,Fallowfield JL

更新日期：2000-07-01 00:00:00

abstract：:A field test for the determination of anaerobic threshold (AT) based on the relationship between work intensity and heart rate was previously developed in adult runners (4) and then applied in various sports activities (3, 5, 9). In the current study the same relationship between running speed (S) and heart rate (HR) ...

journal_title：International journal of sports medicine

authors： Ballarin E,Borsetto C,Cellini M,Patracchini M,Vitiello P,Ziglio PG,Conconi F

更新日期：1989-10-01 00:00:00

abstract：:The purpose of this investigation was to determine the oxygen consumption, heart rate and plasma lactate responses at the fatigue threshold (FT) and estimate the length of time the FT could be maintained. Ten adult males (mean age +/- SD = 21.1 +/- 1.3 yrs) volunteered to perform a maximal treadmill test and FT test. ...

journal_title：International journal of sports medicine

authors： Housh TJ,Johnson GO,McDowell SL,Housh DJ,Pepper M

更新日期：1991-06-01 00:00:00

abstract：:To identify the risk factors of injuries in handball, 221 players were followed during one indoor season. The injury incidence was 4.6/1000 playing hours and 11.4/1000 game hours. The upper extremity was involved in 41% of the injuries including 21% finger sprains. Ankle sprains were the most common injury (33%), and ...

journal_title：International journal of sports medicine

authors： Nielsen AB,Yde J

更新日期：1988-10-01 00:00:00

abstract：:The primary purpose of this investigation was to compare 31 competitive female swimmers with 31 competitive male swimmers on their perceptual responses to submaximal swimming. A secondary purpose was to evaluate the relationship between heart rate (HR) and perceived exertion (RPE) in swimming. Each swimmer completed a...

journal_title：International journal of sports medicine

authors： Koltyn KF,O'Connor PJ,Morgan WP

更新日期：1991-08-01 00:00:00

abstract：UNLABELLED:Caffeine has many diverse physiological effects including central nervous system stimulation. Ventilatory threshold and a recently described heart rate variability threshold both have a relationship with autonomic control that could be altered by caffeine consumption. The purpose of this investigation was to...

journal_title：International journal of sports medicine

authors： Karapetian GK,Engels HJ,Gretebeck KA,Gretebeck RJ

更新日期：2012-07-01 00:00:00

abstract：:Intense exercise promotes long-term gains in cognitive functions. On the other hand, intense exercise may result in acute effects not clearly determined for cognitive performance. A condition of stochastic intensity ranging from moderate to maximal efforts is part of sports like cycling, in which cognitive integrity i...

journal_title：International journal of sports medicine

authors： Kunzler MR,Carpes FP

更新日期：2020-06-29 00:00:00

abstract：:The objective of the study is to describe two cases of proximal tibiofibular ganglion cysts in high level athletes. In May 2003 and March 2005 two athletes (one tennis player in the top eighty of the Italian national ranking and a gymnast belonging to the Italian rhythmic gymnastics national team) were referred to our...

journal_title：International journal of sports medicine

authors： Dragoni S,Giombini A,Di Cesare A,Ripani M

更新日期：2008-08-01 00:00:00

abstract：:The purpose of this study was to determine whether preferred pedal rate (PPR) could be used as an index of cycling performance. Thirteen competitive cyclists cycled at PPR during a graded test and a supra-threshold constant power test (CPT). The results showed that PPR values reported in CPT were correlated to both pe...

journal_title：International journal of sports medicine

authors： Nesi X,Bosquet L,Pelayo P

更新日期：2005-06-01 00:00:00

abstract：:Leptin, the product of the ob-gene, is specifically released by adipocytes. In addition to its metabolic function it seems to affect the feedback-mechanisms of the hypothalamic-pituitary-gonadal-axis. We studied 13 female juvenile elite gymnasts with anorexia athletica (AA) and 9 female patients with anorexia nervosa ...

journal_title：International journal of sports medicine

authors： Matejek N,Weimann E,Witzel C,Mölenkamp G,Schwidergall S,Böhles H

更新日期：1999-10-01 00:00:00

abstract：:This study evaluated the respiratory effects of a single dive in children. Eighteen young divers and 18 controls participated in our study (age range: 9 - 13 years). Volumes and expiratory flow rates were measured 20 minutes before and 10 minutes after one air dive (3 meters, 25 minutes). Before the dive, no differenc...

journal_title：International journal of sports medicine

authors： Lemaître F,Tourny-Chollet C,Hamidouche V,Lemouton MC

更新日期：2006-11-01 00:00:00

abstract：:During the world junior speed skating championship 2002 all athletes (60 males, 56 females) were subjected to hematologic blood testing one day before the competition as requested by International Skating Union--ISU. This study aimed to obtain hematological reference values for junior athletes, whilst the influence of...

journal_title：International journal of sports medicine

authors： Mayr A,Kuipers H,Falk M,Santer P,Wierer B

更新日期：2006-04-01 00:00:00

abstract：:Although analysis of lactate concentrations with a Yellow Springs Instruments (YSI) automated analyzer has become very popular in Sports Medicine, the accuracy and reliability of this technique has not been carefully studied. Additionally, the influence of a common lysing agent Triton X-100 (TX) on blood lactate measu...

journal_title：International journal of sports medicine

authors： Bishop PA,Smith JF,Kime JC,Mayo JM,Tin YH

更新日期：1992-01-01 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：:The shock-absorbing characteristics of the heel pad in vivo were examined in adults (N = 16) and 7-year-old children (N = 5) using a drop-impact tester (wt = 5 kg). Impact velocities were 0.72 m/s and 0.93 m/s. It was found that in adults the average peak deceleration was 11.6 G at an impact velocity of 0.93 m/s. The ...

journal_title：International journal of sports medicine

authors： Kinoshita H,Ogawa T,Kuzuhara K,Ikuta K

更新日期：1993-08-01 00:00:00

abstract：:The main purpose of the present study was to compare the reference metabolic equivalent (MET) value and observed resting oxygen uptake (VO2) for defining cardiorespiratory fitness (VO2max) and characterizing the energy cost of treadmill running. A heterogeneous cohort of 114 healthy men volunteered to participate. In ...

journal_title：International journal of sports medicine

authors： Ázara HM,Farinatti PTV,Midgley AW,Vasconcellos F,Vigário P,Cunha FA

更新日期：2017-11-01 00:00:00

abstract：:This study was undertaken to assess whether ventilatory anaerobic threshold (T vent) reflected endurance capacity (EC) in sports medical control. Fifteen subjects performed two cycle ergometer tests. The first was a maximal exercise test, which consisted of increasing the load 20 W/min until exhaustion. During this te...

journal_title：International journal of sports medicine

authors： Vago P,Mercier J,Ramonatxo M,Prefaut C

更新日期：1987-06-01 00:00:00

abstract：:We hypothesized that a bout of high or low volume eccentric exercise would protect against muscle damage following a subsequent high volume bout and that adaptation would be attributable to neural changes, independent of the initial exercise volume. Sixteen males performed either 45 (ECC45) or 10 (ECC10) maximal eccen...

journal_title：International journal of sports medicine

authors： Howatson G,Van Someren K,Hortobágyi T

更新日期：2007-07-01 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：:This study sought to (a) compare and contrast the effect of 2 commonly used cryotherapy treatments, 4 min of -110 °C whole body cryotherapy and 8 °C cold water immersion, on knee skin temperature and (b) establish whether either protocol was capable of achieving a skin temperature (<13 °C) believed to be required for ...

journal_title：International journal of sports medicine

authors： Costello JT,Donnelly AE,Karki A,Selfe J

更新日期：2014-01-01 00:00:00

abstract：:Inhibition of adipose tissue lipolysis, leading to a reduced availability of non-esterified fatty acids for energy production in the active skeletal muscles, may be involved in the impairment of endurance exercise capacity after administration of a beta-adrenoceptor blocking agent. The effect of increasing the availab...

journal_title：International journal of sports medicine

authors： van Baak MA,Mooij JM,Wijnen JA

更新日期：1993-01-01 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 influence of a short, supramaximal task of 30 s duration on plasma volume (PV) was tested in 14 female physical education students. Hemoglobin (Hb), hematocrit (Hct), and osmolality (Osm) were tested pre- and post-exercise. Performance of the exercise test, consisting of 30 s all-out pedaling against a load of 4.4...

journal_title：International journal of sports medicine

authors： Rotstein A,Bar-Or O,Dlin R

更新日期：1982-11-01 00:00:00

abstract：:The present study examined the behaviour of the Achilles tendon (AT) - triceps surae (TS) muscle complex during running and long jump take-off. High AT forces were measured in the push-off phase in running even with very low EMG activity. In the long jump, high rate of stiffness development was a characteristic of the...

journal_title：International journal of sports medicine

authors： Kyröläinen H,Finni T,Avela J,Komi PV

更新日期：2003-04-01 00:00:00

abstract：:The present paper reviews evidence for the role of specific amino acids in the etiology of fatigue and the overtraining syndrome in athletes. An increase in the plasma concentration ratio of free tryptophan: branched-chain amino acids may mediate an increase in 5-HT synthesis in the brain and thus induce fatigue durin...

journal_title：International journal of sports medicine

authors： Parry-Billings M,Blomstrand E,McAndrew N,Newsholme EA

更新日期：1990-05-01 00:00:00