The Effect of Consuming a Liquid Diet vs a Solid Diet 24-hr Preexperimental Trials on Adherence in Athletes.

Abstract:

:Discrepancies in energy and macronutrient intakes between tests are apparent even when a solid prepackaged diet (Sdiet) is used to standardize dietary intake for preexperimental trials. It is unknown whether a liquid prepackaged diet (Ldiet) leads to improved adherence, resulting in lower variability in energy and macronutrient intakes. This study assesses the ability of athletes to replicate a diet when an Ldiet or Sdiet was used as a dietary standardization technique. In a cross-over design, 30 athletes were randomly assigned to either Sdiet or Ldiet. Each diet was consumed for two nonconsecutive days. Participants were instructed to consume all the meals provided and to return any leftovers. The coefficient of variation (CV) was calculated for each nutrient for the two methods and reported as the average CV. The Bland-Altman plots show that differences between Days 1 and 2 in energy and macronutrient intakes for both diets were close to zero, with the exception of some outliers. The %CV for Sdiet was higher than Ldiet (5% and 3% for energy, 5% and 3% for carbohydrate, 5% and 2% for protein, and 5% and 3% for fat, respectively). There was a strong positive correlation for energy and all macronutrients between Days 1 and 2 for both methods (r > .80; p < .05). Ldiet is an effective technique to standardize diet preexperimental trials and could be used as an alternative to Sdiet. Furthermore, Ldiet may lead to additional improvements in the compliance of participants to the diet and also decrease the cost and time of preparation.

authors

El-Chab A,Simpson C,Lightowler H

doi

10.1123/ijsnem.2018-0259

subject

Has Abstract

pub_date

2019-09-01 00:00:00

pages

493-497

issue

5

eissn

1526-484X

issn

1543-2742

pii

ijsnem.2018-0259

journal_volume

29

pub_type

杂志文章,随机对照试验
  • The aging cardiovascular system: changes in autonomic function at rest and in response to exercise.

    abstract::Tonic vagal modulation of cardiac period (R-R interval) decreases with advancing age, but is greater in middle-aged and older adults who habitually perform aerobic exercise compared with their sedentary peers. Cardiovagal baroreflex sensitivity also declines markedly with age in sedentary adults but only 50% as much i...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,评审

    doi:10.1123/ijsnem.11.s1.s189

    authors: Seals DR,Monahan KD,Bell C,Tanaka H,Jones PP

    更新日期:2001-12-01 00:00:00

  • The effect of the glycemic index of an evening meal on the metabolic responses to a standard high glycemic index breakfast and subsequent exercise in men.

    abstract::The present study investigated the effect of the glycemic index of an evening meal on responses to a standard high glycemic index (HGI) breakfast the following morning. The metabolic responses to exercise 3 h after breakfast were also investigated. Seven active males completed 2 trials. In each trial, participants wer...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 临床试验,杂志文章

    doi:10.1123/ijsnem.15.3.308

    authors: Stevenson E,Williams C,Nute M,Swaile P,Tsui M

    更新日期:2005-06-01 00:00:00

  • The hydration profile of female cricket players during competition.

    abstract::This study investigated the hydration profile of high-performance female cricket players competing at a national tournament. The profile comprised hydration monitoring (n=18) and a questionnaire (n=20). Our objectives were to 1) advance the understanding of fluid losses in cricket sessions across a tournament and 2) a...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.17.1.14

    authors: Soo K,Naughton G

    更新日期:2007-02-01 00:00:00

  • Case study: simulated and real-life energy expenditure during a 3-week expedition.

    abstract::During prolonged periods of high energy expenditure (EE), restricted food intake can lead to a loss of body mass. This case study describes the preexpedition support for an unsupported 3-wk crossing of the Atacama Desert in Chile. The goals were to simulate the energy requirements of walking under varying conditions a...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.21.6.520

    authors: Koehler K,Huelsemann F,de Marees M,Braunstein B,Braun H,Schaenzer W

    更新日期:2011-12-01 00:00:00

  • Endurance training on low-carbohydrate and grain-based diets: a case study.

    abstract:PURPOSE:To illustrate the effects of low-carbohydrate (LC) and grain-based (GB) diets on body composition, biomarkers, athletic training, and performance in an elite triathlete. METHODS:The athlete followed 2 dietary interventions for 14 d while maintaining a prescheduled training program. Pre- and postintervention me...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.17.3.296

    authors: Rosenkranz RR,Cook CM,Haub MD

    更新日期:2007-06-01 00:00:00

  • Effects of High Versus Low Protein Intake on Body Composition and Maximal Strength in Aspiring Female Physique Athletes Engaging in an 8-Week Resistance Training Program.

    abstract::Aspiring female physique athletes are often encouraged to ingest relatively high levels of dietary protein in conjunction with their resistance training programs. However, there is little to no research investigating higher versus lower protein intakes in this population. This study examined the influence of a high ve...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.2017-0389

    authors: Campbell BI,Aguilar D,Conlin L,Vargas A,Schoenfeld BJ,Corson A,Gai C,Best S,Galvan E,Couvillion K

    更新日期:2018-11-01 00:00:00

  • Restoration of menses with nonpharmacologic therapy in college athletes with menstrual disturbances: a 5-year retrospective study.

    abstract:BACKGROUND:Functional hypothalamic amenorrhea is common among female athletes and may be difficult to treat. Restoration of menses (ROM) is crucial to prevent deleterious effects to skeletal and reproductive health. OBJECTIVES:To determine the natural history of menstrual disturbances in female college athletes manage...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.22.2.98

    authors: Arends JC,Cheung MY,Barrack MT,Nattiv A

    更新日期:2012-04-01 00:00:00

  • The effects of pre-exercise high carbohydrate meals with different glycemic indices on blood leukocyte redistribution, IL-6, and hormonal responses during a subsequent prolonged exercise.

    abstract::The purpose of this study was to determine the effect of pre-exercise high carbohydrate meals with high glycemic index (HGI) or low glycemic index (LGI) on blood leukocyte redistribution during subsequent endurance exercise. Eight male subjects performed a 90-min run on a treadmill at 70 % VO2max 3 h after ingesting a...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1123/ijsnem.14.6.647

    authors: Li TL,Wu CL,Gleeson M,Williams C

    更新日期:2004-12-01 00:00:00

  • Assessment of physical demands and fluid balance in elite female handball players during a 6-day competitive tournament.

    abstract::Little data exists on drinking behavior, sweat loss, and exercise intensity across a competitive handball tournament in elite female athletes. Heart rate (HR), fluid balance and sweat electrolyte content were assessed on 17 international players across a 6-day tournament involving 5 games and 2 training sessions playe...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2013-0210

    authors: Cunniffe B,Fallan C,Yau A,Evans GH,Cardinale M

    更新日期:2015-02-01 00:00:00

  • Sustained Exposure to High Carbohydrate Availability Does Not Influence Iron-Regulatory Responses in Elite Endurance Athletes.

    abstract::This study implemented a 2-week high carbohydrate (CHO) diet intended to maximize CHO oxidation rates and examined the iron-regulatory response to a 26-km race walking effort. Twenty international-level, male race walkers were assigned to either a novel high CHO diet (MAX = 10 g/kg body mass CHO daily) inclusive of gu...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2020-0224

    authors: McKay AKA,Peeling P,Pyne DB,Tee N,Welveart M,Heikura IA,Sharma AP,Whitfield J,Ross ML,van Swelm RPL,Laarakkers CM,Burke LM

    更新日期:2021-12-31 00:00:00

  • Metabolic Rate in Adolescent Athletes: The Development and Validation of New Equations, and Comparison to Previous Models.

    abstract::We sought to assess the accuracy of current or developing new prediction equations for resting metabolic rate (RMR) in adolescent athletes. RMR was assessed via indirect calorimetry, alongside known predictors (body composition via dual-energy X-ray absorptiometry, height, age, and sex) and hypothesized predictors (ra...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2019-0323

    authors: Reale RJ,Roberts TJ,Lee KA,Bonsignore JL,Anderson ML

    更新日期:2020-05-26 00:00:00

  • Development of an Athlete Diet Index for Rapid Dietary Assessment of Athletes.

    abstract::Food-based diet indices provide a practical, rapid, and inexpensive way of evaluating dietary intake. Rather than nutrients, diet indices assess the intake of whole foods and dietary patterns, and compare these with nutrition guidelines. An athlete-specific diet index would offer an efficient and practical way to asse...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2019-0098

    authors: Capling L,Gifford JA,Beck KL,Flood VM,Slater GJ,Denyer GS,O'Connor HT

    更新日期:2019-10-17 00:00:00

  • The Effects of Crushed Ice Ingestion Prior to Steady State Exercise in the Heat.

    abstract::This study examined the physiological effects of crushed ice ingestion before steady state exercise in the heat. Ten healthy males with age (23 ± 3 y), height (176.9 ± 8.7 cm), body-mass (73.5 ± 8.0 kg), VO2peak (48.5 ± 3.6 mL∙kg∙min-1) participated in the study. Participants completed 60 min of cycling at 55% of thei...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2016-0215

    authors: Zimmermann M,Landers G,Wallman KE,Saldaris J

    更新日期:2017-06-01 00:00:00

  • Rapid Weight Loss Among Adolescents Participating In Competitive Judo.

    abstract::Athletes competing in individual sports such as judo are categorized by weight. Before competitions, weight cutting is common. This cross-sectional study was designed to characterize and determine the prevalence of rapid weight loss (RWL) among adolescent judo competitors. Male athletes aged 12- to 17-years old (N = 1...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2015-0196

    authors: Berkovich BE,Eliakim A,Nemet D,Stark AH,Sinai T

    更新日期:2016-06-01 00:00:00

  • Weight and body-composition change during the college freshman year in male general-population students and Army Reserve Officer Training Corps (ROTC) cadets.

    abstract:PURPOSE:To examine relationships between changes in body weight, body composition, and fitness level in male students of the general population and those in the Army Reserve Officer Training Corps (ROTC) program during the freshman year of college. METHODS:Thirty-seven (18.4 ± 0.7 yr) healthy, nonsmoking, first-semest...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.22.6.412

    authors: Crombie AP,Liu PY,Ormsbee MJ,Ilich JZ

    更新日期:2012-12-01 00:00:00

  • Fluid Replacement Attenuates Physiological Strain Resulting From Mild Hypohydration Without Impacting Cognitive Performance.

    abstract:PURPOSE:The impact of mild hypohydration on physiological responses and cognitive performance following exercise-heat stress (EHS) were examined compared with conditions when fluids were ingested ad libitum (AL) or replaced to match sweat losses (FR). METHODS:Twelve unacclimatized, recreationally-active men (22.2 ± 2....

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 临床试验,杂志文章

    doi:10.1123/ijsnem.2014-0173

    authors: Wittbrodt MT,Millard-Stafford M,Sherman RA,Cheatham CC

    更新日期:2015-10-01 00:00:00

  • Effects of an exercise program and a calcium supplementation on bone in children: a randomized control trial.

    abstract::We investigated the effects of calcium supplementation and physical practice on the bone ultrasound properties and trabecular microarchitecture in children. 160 children aged 8-11 were randomly allocated to active or nonactive groups and to receive either a calcium-phosphate or a placebo powder for 6 months. Skeletal ...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.16.6.580

    authors: Ianc D,Serbescu C,Bembea M,Benhamou L,Lespessailles E,Courteix D

    更新日期:2006-12-01 00:00:00

  • Effects of four weeks L-carnitine L-tartrate ingestion on substrate utilization during prolonged exercise.

    abstract::In a randomized, placebo-controlled, double-blind crossover design, 15 trained males undertook exercise trials during two 4 wk supplementation periods, with either 3 g L-Carnitine L-tartrate (LCLT) or 3 g placebo (P) daily. Total carbohydrate and fat oxidation during 90 min steady state cycling were not different betw...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.15.6.665

    authors: Broad EM,Maughan RJ,Galloway SD

    更新日期:2005-12-01 00:00:00

  • Acute hypoxia and exercise-induced blood oxidative stress.

    abstract::Hypoxic exercise is characterized by workloads decrements. Because exercise and high altitude independently elicit redox perturbations, the study purpose was to examine hypoxic and normoxic steady-state exercise on blood oxidative stress. Active males (n = 11) completed graded cycle ergometry in normoxic (975 m) and h...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.2013-0188

    authors: McGinnis G,Kliszczewiscz B,Barberio M,Ballmann C,Peters B,Slivka D,Dumke C,Cuddy J,Hailes W,Ruby B,Quindry J

    更新日期:2014-12-01 00:00:00

  • Effect of bovine colostrum supplementation on respiratory tract mucosal defenses in swimmers.

    abstract:PURPOSE:This study investigated the effect of bovine colostrum (BC) on mucosal defense in the respiratory tracts of athletes and a nonexercising control group. METHODS:An athlete cohort (ATH) of 25 (12 male, 13 female) elite swimmers (age 14-23 yr) and a control cohort (CON) of 28 (9M, 19F) students (age 18-27 yr) wer...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.20.3.224

    authors: Crooks C,Cross ML,Wall C,Ali A

    更新日期:2010-06-01 00:00:00

  • The Influence of Long-Chain Omega-3 Fatty Acids on Eccentric Exercise-Induced Delayed Muscle Soreness: Reported Outcomes Are Compromised by Study Design Issues.

    abstract::Delayed onset muscle soreness (DOMS) following eccentric exercise is associated with increased inflammation which can be debilitating. Incorporation of long-chain omega-3 polyunsaturated fatty acids (LC n-3 PUFA), eicosapentaenoic acid, and docosahexaenoic acid into membrane phospholipids provides anti-inflammatory, p...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2020-0238

    authors: Anthony R,Macartney MJ,Peoples GE

    更新日期:2021-01-20 00:00:00

  • Effect of high-intensity intermittent exercise on postprandial plasma triacylglycerol in sedentary young women.

    abstract::High-intensity intermittent exercise (HIIE) such as the 30-s Wingate test attenuates postprandial triacylglycerol (TG), however, the ability of shorter versions of HIIE to reduce postprandial TG is undetermined. Thus, the effect of 8-s sprinting bouts of HIIE on blood TG levels of 12 females after consumption of a hig...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 临床试验,杂志文章

    doi:10.1123/ijsnem.2013-0094

    authors: Tan M,Chan Moy Fat R,Boutcher YN,Boutcher SH

    更新日期:2014-02-01 00:00:00

  • Correcting Vitamin D Insufficiency Improves Some But Not All Aspects of Physical Performance During Winter Training in Taekwondo Athletes.

    abstract::We investigated the effects of vitamin D3 supplementation on physical performance during winter training in vitamin D insufficient taekwondo athletes. Thirty-five collegiate male and female taekwondo athletes, aged 19-22 years with low serum 25(OH)D concentration (28.8 ± 1.10 nmol/L), were randomly assigned to a vitam...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.2017-0412

    authors: Jung HC,Seo MW,Lee S,Jung SW,Song JK

    更新日期:2018-11-01 00:00:00

  • Frequent Carbohydrate Ingestion Reduces Muscle Glycogen Depletion and Postpones Fatigue Relative to a Single Bolus.

    abstract::The timing of carbohydrate ingestion and how this influences net muscle glycogen utilization and fatigue has only been investigated in prolonged cycling. Past findings may not translate to running because each exercise mode is distinct both in the metabolic response to carbohydrate ingestion and in the practicalities ...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2019-0291

    authors: Menzies C,Wood M,Thomas J,Hengist A,Walhin JP,Jones R,Tsintzas K,Gonzalez JT,Betts JA

    更新日期:2020-02-28 00:00:00

  • Isocaloric carbohydrate versus carbohydrate-protein ingestion and cycling time-trial performance.

    abstract::This study was designed to compare the effects of energy-matched carbohydrate (CHO) and carbohydrate-protein (CHO-PRO) supplements on cycling time-trial performance. Twelve competitive male cyclists and triathletes each completed 2 trials in a randomized and counterbalanced order that were separated by 5-10 d and appl...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.20.1.34

    authors: Toone RJ,Betts JA

    更新日期:2010-02-01 00:00:00

  • Carbohydrate-electrolyte feedings and 1 h time trial cycling performance.

    abstract::The effects of a commercial sports drink on performance in high-intensity cycling was investigated. Nine well-trained subjects were asked to complete a set amount of work as fast as possible (time trial) following 24 h of dietary (subjects were provided with food, energy 57.4+/-2.4 kcal/kg and carbohydrate 9.1+/-0.4 g...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1123/ijsnem.14.5.541

    authors: Desbrow B,Anderson S,Barrett J,Rao E,Hargreaves M

    更新日期:2004-10-01 00:00:00

  • Opuntia ficus indica's effect on heart-rate variability in high-level athletes.

    abstract::Opuntia ficus indica (OFI) has many physiological effects, but a relationship between OFI and heart-rate variability (HRV) has never been established. The aim of this study was to describe the effects of a diet supplement of OFI on HRV in athletes. The first day, heart rate (HR) was measured at rest in supine (SU) and...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.18.2.169

    authors: Schmitt L,Fouillot JP,Nicolet G,Midol A

    更新日期:2008-04-01 00:00:00

  • Prevention of neutrophil protein oxidation with vitamins C and E diet supplementation without affecting the adaptive response to exercise.

    abstract::The authors studied the effects of antioxidant diet supplementation with an almond-based beverage on neutrophil antioxidants, nitrite, and protein oxidative alterations after exercise. Fourteen trained male amateur runners were randomly assigned in a double-blind fashion to receive antioxidant supplementation (152 mg/...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.23.1.31

    authors: Sureda A,Ferrer MD,Mestre A,Tur JA,Pons A

    更新日期:2013-02-01 00:00:00

  • Effect of quercetin supplementation on repeated-sprint performance, xanthine oxidase activity, and inflammation.

    abstract::Maintenance of repeated-sprint performance is a goal during team-sport competition such as soccer. Quercetin has been shown to be an adenosine-receptor antagonist and may reduce oxidative stress via inhibition of the enzyme xanthine oxidase (XO). The purpose of the study was to determine the effect of quercetin consum...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijsnem.21.2.91

    authors: Abbey EL,Rankin JW

    更新日期:2011-04-01 00:00:00

  • Relationship between time of day physical exercise and the reduced risk of coronary artery disease in a Chinese population.

    abstract:PURPOSE:Exercise leads to a lower risk of coronary artery disease (CAD). However, whether time of day physical exercise has effects on CAD is still unclear. The present study is to investigate the relationship between time of day physical exercise and angiography determined CAD in a Chinese population. SUBJECTS:A tota...

    journal_title:International journal of sport nutrition and exercise metabolism

    pub_type: 杂志文章

    doi:10.1123/ijsnem.2012-0226

    authors: Zhao H,Chu XQ,Lian XQ,Wang ZM,Gao W,Wang LS

    更新日期:2014-04-01 00:00:00