Abstract：
:This study aimed to investigate how the trunk muscularity is related to sprint running performance. In 23 youth soccer players, the cross-sectional images at the mid level of each of L1-L2, L2-L3, L3-L4, L4-L5, and L5-S1 were obtained using magnetic resonance imaging to determine the cross-sectional areas (CSAs) of rectus abdominis, oblique, psoas major, quadratus lumborum and erector spinae muscles. The times taken to sprint over 20 m were measured, and the mean velocity of running was calculated for each of the 2 distances (V (10 m) and V (20 m)) and for the distance from 10 m to 20 m (V (10-20 m)). The CSA values of the 5 slice levels for all muscles except for the quadratus lumborum and those of the 3 slice levels (L1-L2, L2-L3 and L3-L4) for the quadratus lumborum were averaged and expressed relative to the two-third power of body mass (CSA/BM (2/3)). The CSA/BM (2/3) values of the erector spinae and quadratus lumborum were selected as significant contributors to predict V (10 m) ( R(2)=0.450), V (20 m) ( R(2)=0.504) and V (10-20 m) ( R(2)=0.420). The current results indicate that the muscularity of the erector spinae and quadratus lumborum contributes to achieving a high performance in sprint running over distances of less than 20 m.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Kubo T,Hoshikawa Y,Muramatsu M,Iida T,Komori S,Shibukawa K,Kanehisa Hdoi
10.1055/s-0030-1268502subject
Has Abstractpub_date
2011-03-01 00:00:00pages
223-8issue
3eissn
0172-4622issn
1439-3964journal_volume
32pub_type
杂志文章abstract：:The aim of this research was to study the effect of hand paddles on the pitch, the sweepback angles and other stroke kinematic characteristics of the hand during front crawl swimming. Ten female competitive swimmers swam without and with small (116 cm (2)) and large (268 cm (2)) paddles. Four cameras (60 Hz) were used...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-965570
更新日期：2008-05-01 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
pub_type： 杂志文章,评审
doi：10.1055/s-2007-1024755
更新日期：1990-02-01 00:00:00
abstract：:We tested the hypothesis that the initial heart rate (HR) response at the onset of maximal handgrip contraction is altered after training. 17 volunteers (nine trained and eight controls) performed ten intermittent static handgrip contractions with maximal effort, alternating between 15-s contractions and 15-s pauses. ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-989373
更新日期：2008-08-01 00:00:00
abstract：:The purpose of this study was to: (1) verify the aerobic requirement (AR) of bench stepping (BS); (2) determine the effect of leg length (LL), bench height (BH), stepping rate (SR), body weight (BW), and fat free mass (FFM) on the AR of BS; and (3) compare the HR and VO2 of BS with treadmill walking/running (TM). Twen...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1055/s-2007-1021156
更新日期：1993-04-01 00:00:00
abstract：:The alterations in thigh muscle properties of chondromalacia patellae patients during isometric and dynamic endurance tests were studied using a variokinetic knee testing system linked to surface EMG. A total of 41 patients (chondromalacia group) with arthroscopically certified chondromalacia of the patella were studi...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-972962
更新日期：1995-01-01 00:00:00
abstract：:This study examined the physiological responses to cold stimulus during intermittent high-intensity exercise simulating on-snow alpine ski training. 7 male alpine skiers performed intermittent high-intensity exercises composed of 4 bouts of cycling exercise at 140% VO 2max intensity for 30 s with 10-min rests on a cyc...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0033-1353146
更新日期：2014-05-01 00:00:00
abstract：:The aim of the present study was to monitor the nutritional status of 9 Greek national top-level swimmers during a competitive season of eight months. The swimmers were assessed through recording of food and supplement intake, blood sampling, and anthropometry at four landmarks: in the beginning of the season (baselin...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-964907
更新日期：2007-09-01 00:00:00
abstract：:Eight competitive racewalkers were studied to determine a) the speed where running and racewalking become equally efficient, b) if, at a similar VO2, the physiologic responses to submaximal exercise differ between running and racewalking, and c) if VO2 max can be attained during racewalking. The speed at which running...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1055/s-2008-1025883
更新日期：1984-04-01 00:00:00
abstract：:Hormonal and metabolic parameters were studied for two teams after a football match. Blood samples were collected before the start, at half-time, at the end, and 45 and 90 min after the end of the game. In the first team, ACTH, cortisol, and lactate levels increased significantly during the whole match to resume basal...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025732
更新日期：1986-02-01 00:00:00
abstract：:Limited data exist concerning exercise training-induced alterations in skeletal muscle oxidative and antioxidant enzyme activity in senescent animals. Therefore, the purpose of this study was twofold: 1) to examine the exercise training-induced changes in oxidative and antioxidant enzyme activity in skeletal muscle of...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1021290
更新日期：1992-07-01 00:00:00
abstract：:The circulation of blood during upright exercise involves a two-pump system, a central cardiac pump and a peripheral pump responsible for systemic venous return. Axiomatically, the function of the two pumps must be equal, and certain evidence suggests that the peripheral pump may "drive" the circulation during exercis...
journal_title：International journal of sports medicine
pub_type： 杂志文章,评审
doi：10.1055/s-2001-18526
更新日期：2001-11-01 00:00:00
abstract：:The present study was designed to examine the effects of administration of a GABAergic agonist (Baclofen) on run-time to exhaustion in trained and untrained rats, and on some indicators of fatigue. Run-time to exhaustion on a treadmill set at a speed of 25 m.min-1 was significantly increased in both untrained (p < 0.0...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-972598
更新日期：1997-02-01 00:00:00
abstract：:In major track and field competitions, the most risky discipline is the combined event. Therefore, we aimed to record and analyze the incidence and characteristics of sports injuries incurred during the Youth and National Combined Events Championships. During the French Athletics Combined Events Championships in 2010,...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0031-1301332
更新日期：2012-10-01 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
pub_type： 杂志文章
doi：10.1055/s-2007-989440
更新日期：2008-08-01 00:00:00
abstract：:This study aimed to investigate the impact of a 16-week dance-based aerobic exercise program on lymphocyte function in healthy and type 2 diabetes mellitus (T2DM) women. We enrolled 23 women: 11 with T2DM and 12 non-diabetic controls. Initially, we performed anthropometry and body composition measurements, afterwards,...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/a-1309-2037
更新日期：2020-12-15 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
pub_type： 杂志文章
doi：10.1055/s-2007-1025037
更新日期：1988-10-01 00:00:00
abstract：:Aerobic exercise performance decreases upon ascent to altitude whereas anaerobic performance remains unchanged. Although the effects of 1 - 3 wk of altitude acclimatization on both aerobic and anaerobic exercise performance have been well studied, the effects of short-term altitude acclimatization (i.e., 45 h) on thes...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2005-872823
更新日期：2006-08-01 00:00:00
abstract：:The purpose was to analyze the influence of oral contraceptive use on body composition and strength levels in trained women. Twenty-three resistance-trained women participated in this study (age=27.4±3.4 years; fat mass=28.0±5.0%; BMI=22.9±2.7 kg∙m-2). Subjects performed an 8-week non-linear resistance-training progra...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
doi：10.1055/a-0985-4373
更新日期：2019-12-01 00:00:00
abstract：:The aim of this study was to compare the maximal lactate steady state (MLSS) and ventilatory threshold (VT) under different environments (TEMP: 22°C; and HOT: 40°C; 50% RH). 8 male subjects (age 23.9±2.4 years, body mass 75.9±7.3 kg and VO2(max) 47.8±4.9 mL·kg(-1)·min(-1)) performed a series of tests to determine the ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0031-1277191
更新日期：2011-10-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0031-1284341
更新日期：2011-12-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1055/s-2007-1021268
更新日期：1992-05-01 00:00:00
abstract：:To study the relationship between the onset of an increase in dyspnea and ventilatory threshold (VT) in children with congenital heart impairment, sixteen young subjects underwent a cardiopulmonary exercise test with dyspnea perception and ventilatory gas exchange assessments. Dyspnea score was measured from a visual ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2006-924396
更新日期：2007-04-01 00:00:00
abstract：:The effects of two 4-week training programs on knee flexor and extensor strength were measured isokinetically (angular velocity 30 degrees, 180 degrees/s) and isometrically in division IV soccer players. Group A followed a team training program and group B an individual weight training program. Group C served as contr...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
doi：10.1055/s-2008-1025829
更新日期：1985-06-01 00:00:00
abstract：:The purpose of this study is to investigate whether a periosteum patch could enhance polyethylene terephthalate (PET) artificial ligament graft osseointegration in a bone tunnel. 12 female goats underwent ACL reconstruction with a PET artificial ligament graft in the right knees. Right knees in 6 goats were reconstruc...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0042-102258
更新日期：2016-06-01 00:00:00
abstract：:The nutrition of 57 native Bolivian boys living at high altitude (HA) in La Paz (+/- 4000 m) and of 63 boys living at low altitude (LA) in St. Cruz (+/- 400 m) is described. The dietary information was obtained with a 24-h recall method, by interviewing the child and mother. The food items are listed in household meas...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1021121
更新日期：1994-04-01 00:00:00
abstract：:The present study examined the neuromuscular activation characteristics of the hamstrings during the 'Nordic' hamstrings exercise (NHE) and changes in the eccentric strength of the knee flexors with NHE training. Initially, the normalised root mean square electromyographic (EMG) activity of the hamstrings of both limb...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0032-1304591
更新日期：2012-12-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
doi：10.1055/s-0042-109539
更新日期：2016-11-01 00:00:00
abstract：:The purpose of this study was to assess the agreement in body composition measurements of wheelchair athletes using skinfolds, bio-impedance analysis (BIA) and air displacement plethysmography (ADP) relative to dual-energy X-ray absorptiometry (DXA). A secondary objective was to develop new skinfold prediction equatio...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0042-104061
更新日期：2016-09-01 00:00:00
abstract：:Altitude exposure leads to considerable weight loss. The different hypotheses that have been put forward to explain this phenomenon are discussed reviewing the literature: 1) a primary decrease of food intake due to loss of appetite caused, directly or indirectly, by hypoxia, changes of menus, comfort and habits, 2) a...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1024616
更新日期：1992-10-01 00:00:00
abstract：:T-lymphocytes were determined by rosette formation with sheep erythrocytes in the peripheral blood obtained from 30 healthy aged subjects who were practicing Taichiquan (88 style) exercise and 30 age-matched normal aged who served as a control group. At rest the total number of T-lymphocytes and the number of active T...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：
更新日期：1989-06-01 00:00:00
