Abstract：
:Previous studies have demonstrated that full recovery from weight loss may take months or years. The present investigation examined short-term recovery (5 wks "post") of physical performance (muscular strength, muscular power, vertical jump), body composition, metabolic hormones (testosterone, luteinizing hormone, sex hormone binding globulin, insulin-like growth factor-1, triiodothyronine, thyroxine, thyroid binding globulin, and thyroid-stimulating hormone) and metabolic markers (transferrin, ferritin, prealbumin, glycerol, nonesterified fatty acids, high-density lipoproteins, and lactate) in 10 healthy young men after an 8-week Army course with an energy deficit (1000 kcal/d) and loss of body mass (-12%). Subjects ate ad libitum after the course ended ("post"). Body composition was determined by dual-energy X-ray absorptiometry; strength from a simulated power clean, power from body mass and jump height, and metabolic hormones were measured in morning-fasted blood by radioimmunoassay. With the exception of transferrin and glycerol, all study parameters were significantly (p<.05) altered by the training course. At 5 weeks post fat-free mass along with all physical performance measures returned to initial levels; however, fat mass had significantly (p<.05) increased over initial levels. Also, with the exception of lactate, all measured hormones and markers were close to initial levels and within normal ranges. Reported complications during recovery included sleep irregularities, diarrhea, loss of motivation and feelings of fatigue. While the long range effect of this energy deprivation experience is uncertain, these data do suggest that severe weight loss does not result in lasting alterations of the contractile and metabolic properties of skeletal muscle in young, lean, healthy men.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Nindl BC,Friedl KE,Frykman PN,Marchitelli LJ,Shippee RL,Patton JFdoi
10.1055/s-2007-972640subject
Has Abstractpub_date
1997-07-01 00:00:00pages
317-24issue
5eissn
0172-4622issn
1439-3964journal_volume
18pub_type
杂志文章abstract：:Throwing arm injuries are common and often related to the shoulder external and internal rotation. Quantitative assessment may provide new insights to physical assessment and options for treatment. After having signed IRB approved consents and filled out injury questionnaires, 96 baseball pitchers were examined on bot...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0031-1295440
更新日期：2012-06-01 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
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1055/s-2002-33148
更新日期：2002-07-01 00:00:00
abstract：:The stress of strenuous long-term exercise may alter renal function. Whether this is also true for marathon cycling is unknown so far. The purpose of this study was to evaluate renal function following competitive marathon cycling. We investigated 38-male, well-trained recreational cyclists credibly not taking any kin...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2003-38205
更新日期：2003-02-01 00:00:00
abstract：PURPOSE:The modified Dmax method can accurately determine the second lactate threshold (LT2), which is valuable for predicting aerobic performance and prescribing exercise. The purpose of this study is to determine if the modified Dmax method can accurately find thresholds in VE (VT2), VCO2 (VCO2T), RER (RERT), and RR ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0043-125448
更新日期：2018-04-01 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：: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
pub_type： 杂志文章
doi：10.1055/s-2007-1021217
更新日期：1993-09-01 00:00:00
abstract：:Electromyographic and force production characteristics of leg extensor muscles of elite weight lifters (n = 14) were examined during isometric, concentric, and various stretch-shortening cycle exercises. The data showed that utilization of stored elastic energy of leg extensor muscles was observable in countermovement...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025752
更新日期：1986-06-01 00:00:00
abstract：:Caffeine enhances endurance performance; however, its effect on accumulated lactate remains unclear. Conversely, taurine, which also enhances endurance performance, decreases accumulated lactate. In this study, the effect of combination of caffeine and taurine on endurance performance was assessed. Mice ran on a tread...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0028-1104574
更新日期：2009-07-01 00:00:00
abstract：:The energy cost of the forms of locomotion discussed throughout this article is summarized in Table 9. This table, as well as the preceding sections of this article, are designed to provide a rather comprehensive and simple set of information for potential readers: medical doctors, who should be able to prescribe to t...
journal_title：International journal of sports medicine
pub_type： 杂志文章,评审
doi：10.1055/s-2008-1025736
更新日期：1986-04-01 00:00:00
abstract：:Phagocytic cells constitute the organism's first line of defence against external aggression. These cells carry out their non-specific defence function through what is known as the phagocytic process. This can be split up into several stages: adherence, chemotaxis, attachment, ingestion and killing of the foreign agen...
journal_title：International journal of sports medicine
pub_type： 杂志文章,评审
doi：10.1055/s-2007-1021133
更新日期：1994-10-01 00:00:00
abstract：:This study aims to investigate the changes in the mechanical properties of quadriceps muscle following a sub-maximal concentric-eccentric stepping exercise protocol. Twenty-four untrained healthy subjects aged 21.9 +/- 0.55 years were asked to perform a 10-minute stepping exercise where the dominant leg worked eccentr...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-965337
更新日期：2008-03-01 00:00:00
abstract：:Here, we compared the maximal lactate steady state velocity (vMLSS) estimated from a single-visit protocol (v5×2000) to the traditional multi-day protocol (vMLSS). Furthermore, we determined whether there was a lactate steady state during the time limits (Tlim) at vMLSS or v5×2000. Eight runners completed a half marat...
journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
doi：10.1055/s-0031-1283178
更新日期：2011-11-01 00:00:00
abstract：:The aims of this study were: to compare energy expenditure (EE) estimated from the existing GT3X accelerometer equations and EE measured with indirect calorimetry; to define new equations for EE estimation with the GT3X in youth, adults and older people; and to define GT3X vector magnitude (VM) cut points allowing to ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0033-1337945
更新日期：2013-11-01 00:00:00
abstract：:The changes in selected muscle and blood metabolites - blood catecholamines, cyclic AMP, glucagon, growth hormone, insulin, and C-peptide--were measured in five male long-distance runners after moderate 90 min (4.3 min/km) and intense 45 min (3.3 min/km) of continuous running exercises. After the 45-min exercise, the ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025851
更新日期：1985-10-01 00:00:00
abstract：:The principal aim of our study was the determination of the effectiveness of a standardized ratio, allometric scaling model and a gamma function model in normalizing the isometric torque data of spinal cord patients and healthy subjects. For this purpose we studied a sample of 21 healthy males and 23 spinal cord injur...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0032-1301889
更新日期：2012-06-01 00:00:00
abstract：:The purpose of this investigation was to determine the effect of ambient temperature on the salivary immunoglobulin A (s-IgA) response to submaximal exercise. Nine adult males (x age +/- SD = 22 +/- 2 yrs) volunteered to perform an incremental treadmill test to exhaustion for the determination of VO2max and three 30-m...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1024722
更新日期：1991-10-01 00:00:00
abstract：:Physical exercise is associated with increases of serum and salivary levels of cortisol. The concomitant increase in serum lactate has been implicated as one of the mechanisms responsible for adrenocortical activation. We evaluated the responses of serum lactate and serum and salivary cortisol to an acute bout of high...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2004-830449
更新日期：2005-11-01 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：: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：:Pre-exercise meals containing carbohydrates (CHO) are recommended to athletes, although there is evidence to suggest that a high fat meal prior to exercise increases utilisation of fats yet may not adversely affect performance. This study investigated the effect of a high fat and high CHO pre-exercise meal prior to hi...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
doi：10.1055/s-0032-1321798
更新日期：2013-02-01 00:00:00
abstract：:Muscle contusions represent a major part of sports injuries. The suggested treatments are generally sufficient to support muscle healing, but require a relatively long period of time. Given that autologous blood products are safe treatments, we have used a technique which stimulates the release of certain growth facto...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2004-821303
更新日期：2004-11-01 00:00:00
abstract：:Considering the large and repetitive loads associated with jumping in team sports, automatic detection and quantification of jumping may show promise in reducing injury risks. The aim of this study was to validate commercially available inertial-movement analysis software to detect and quantify jumping in team sports....
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0044-100793
更新日期：2018-10-01 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
pub_type： 杂志文章
doi：10.1055/a-1320-1061
更新日期：2020-12-22 00:00:00
abstract：:The aim of the study was to compare the effects of two different models of altering the frequency of strength training sessions of females. The "regular training" (RT) consisted of one training unit every third day over the whole menstrual cycle. The "menstrual cycle triggered training" (MCTT) was characterized by wor...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
doi：10.1055/s-2007-973052
更新日期：1995-11-01 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
pub_type： 杂志文章
doi：10.1055/s-2007-1024674
更新日期：1991-04-01 00:00:00
abstract：:Plantar fascial disorder is comprised of plantar fasciitis and plantar fibromatosis. Plantar fasciitis is the most common cause of heel pain, especially for athletes involved in running and jumping sports. Plantar fibromatosis is a rare fibrous hyperproliferation of the deep connective tissue of the foot. To identify ...
journal_title：International journal of sports medicine
pub_type： 杂志文章,meta分析
doi：10.1055/s-0044-100280
更新日期：2018-04-01 00:00:00
abstract：:The purpose of this study was to analyse intramuscular perfusion response in ultrastructural muscle lesions, by applying contrast-enhanced ultrasound (CEUS) to a delayed onset muscle soreness (DOMS) model. Results of this analysis were compared to high-resolution 3 Tesla MRI T2-weighted sequences. 14 healthy participa...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0043-112501
更新日期：2017-10-01 00:00:00
abstract：:This study investigated the validity of determining the final work rates of cycling and walking ramp-incremented maximal cardiopulmonary exercise tests (CPETs) using a non-exercise model to predict maximal oxygen uptake VO2max and the American College of Sports Medicine ACSM's metabolic equations. The validity of usin...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0034-1395590
更新日期：2015-10-01 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：:Male Sprague-Dawley rats (n = 48, > 200 g) were progressively treadmill trained over 5 wk where they were running 60 min/d, 5 d/wk. One-half of the group consumed a high-fat diet (HF, 78.7% of energy), while one-half consumed a high-carbohydrate diet (HC, 68.7% of energy). On the day of the experiment, 6 rats per diet...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-971939
更新日期：1998-08-01 00:00:00
