Abstract:
:When conducting research in the area of bone health, accurate measurement of calcium intake is crucial. The rapid assessment method (RAM) is one technique that has frequently been used for its measurement of calcium intake. However, the RAM and other currently established questionnaires lack the assessment of dietary supplement use, which is common for athletes. Our objective was to evaluate the validity of a RAM questionnaire designed to assess daily calcium consumption which was further modified to meet the needs of athletes who frequently consume dietary supplements. Usefulness of the modified RAM for athletes and non-athletes was evaluated as well as utility among those who do and do not use supplements. The 47 volunteers (n = 31 women, 16 men) were between the ages of 18 and 25 including, 33 athletes and 14 controls. The population also contained 23 supplement users and 24 non-supplement users. Participants completed the modified RAM and were instructed to complete a three-day diet record (3DR), logging food intake for 2 weekdays and 1 weekend day. The data collected via the modified RAM was compared with the 3DR. Mean calcium intake was 935mg ± 420mg and 1085mg ± 573mg, for the modified RAM and 3DR respectively. A strong positive correlation (r) was found between calcium intake measured with the modified RAM and 3DRs (r(45) = 0.854, p < 0.01). Intraclass correlation coefficients (ICC) revealed that agreement between the two instruments was good (ICC = 0.76, df = 45, p < 0.01) and much improved when compared to agreements without consideration of supplements (ICC = 0.05, df = 21, p > 0.05). We have found the modified RAM to be a valid tool which can be used to estimate calcium intake in the athletes and controls we strive to study. The accuracy of this instrument improved by including assessment of dietary supplement sources of calcium. Key pointsWhen conducting research on bone health, accurate measurement of calcium intake is crucial. The rapid assessment method (RAM) is one technique that has frequently been used for its measurement; however, currently established questionnaires lack assessment of dietary supplement use, which is common for athletes.We report that estimated calcium intake from the LMU RAM modified to evaluate supplement use has good agreement with three-day diet records (3DRs). There was a strong correlation between the two methods with about 69% (r = 0.83, r(2) = 0.69) of the variability in calcium intake quantified via the LMU RAM being accounted for by the 3DR.Calculated intraclass correlation coefficients between 0.63 and 0.77 reveal that the LMU RAM appears to be a valid tool of measuring daily calcium intake in athletes and non-athletes and among those who do and do not use supplements.When evaluating calcium intake without considering supplements, agreement (ICC) and correlation (r) values decreased considerably.We found the LMU RAM to be a valid measurement of calcium intake in athletes and controls. Without the addition of a section on supplement use, estimated calcium intake would have decreased an average of 32%.
journal_name
J Sports Sci Medjournal_title
Journal of sports science & medicineauthors
Henry MB,Almstedt HCsubject
Has Abstractpub_date
2009-06-01 00:00:00pages
225-9issue
2issn
1303-2968journal_volume
8pub_type
杂志文章abstract::During rugby game, or intensive rugby training there are many high intensity explosive exercises and eccentric muscle contractions, therefore adequate recovery is very important to rugby players. In the present study we have tested the effects of cold water immersion (CWI) after game-simulated (80 min.) rugby training...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2014-09-01 00:00:00
abstract::The main purpose of the present meta-analysis was to examine the criterion-related validity of the 20-m shuttle run test for estimating cardiorespiratory fitness. Relevant studies were searched from twelve electronic databases up to December 2014, as well as from several alternative modes of searching. The Hunter-Schm...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章,评审
doi:
更新日期:2015-08-11 00:00:00
abstract::The Rating of Perceived Exertion (RPE) has been used as a supplementary tool for prescription of exercise training intensity for healthy and special populations. Despite the wide use of the RPE scale, there is an inconsistency regarding the accuracy of that scale for chronic heart failure (CHF) patients treated with b...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2004-11-01 00:00:00
abstract::This study investigated the acute inflammatory response to a repeat-sprint training session in hypoxia. Eleven amateur team-sport athletes completed a repeat-sprint training in hypoxia (RSH) protocol (4 sets of 4x4-s running sprints) in both normoxia and normobaric hypoxia (FiO2 0.145 to simulate an altitude of 3000 m...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2018-11-20 00:00:00
abstract::Mountain endurance running has increased in popularity in recent years. Thus the aim of the present study was to determine if maximal oxygen uptake (VO2max) and energy cost of running (Cr) measured during level and uphill running are associated. Ten high level male endurance mountain runners performed three maximal ox...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2016-05-23 00:00:00
abstract::A table tennis player should fixate at different distances; track the objects with different speed, and in different visual environment. Their visual skills must be well developed for these capabilities. Therefore, visual acuity in reduced lumination and facility of ocular accommodation those are two criteria for visu...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2004-03-01 00:00:00
abstract::An unfused acromial epiphysis, called os acromiale, can become unstable and mobile when the deltoid contracts. This may cause pain and lead to impingement syndrome and rotator cuff tearing. After sustaining a direct blow to the right shoulder, a male division I basketball player was diagnosed with impingement syndrome...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2003-12-01 00:00:00
abstract::The purpose of this study was to determine modulation of pre- activity related to different types and heights of deep jump. Sixteen male soccer players without experience in deep jumps training (the national competition; 15.0 ± 0.5yrs; weight 61.9 ± 6.1kg; height 1.77 ± 0.07m), who participated in the study, performed...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2008-06-01 00:00:00
abstract::Identification of performance indicators related to scoring points and winning is needed to inform tactical approaches to international rugby sevens competition. The aim of this study was to characterize team performance indicators in international rugby sevens and quantify their relationship with a team's points scor...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2014-05-01 00:00:00
abstract::The aim of the study was to compare maximal and submaximal cardiorespiratory responses between progressive tests on a treadmill on land (TRE), and stationary running on land (SRL) and in water (SRW), while also comparing two methods of determining the second turn point (ST) (ventilatory curve and heart rate deflection...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2013-09-01 00:00:00
abstract::The purpose of this investigation was to determine the effect of intermittent sub-maximal exercise on percent body fat (%BF) estimated by leg-to-leg bioelectrical impedance analysis (LBIA) in children. Fifty-nine children (29 girls; 30 boys) mean age 9.0 ± 1.3 years participated in this study. LBIA measured %BF values...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2006-09-01 00:00:00
abstract::There have been few studies examining the short-term effect of high-impact activities on bone metabolism measured by bone serum marker concentrations. The purpose of this study was to examine the effect of short-term high-impact jump activity on bone turnover in female college-aged non-athletes. Twenty six healthy fem...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2012-03-01 00:00:00
abstract::The aim of this study was to examine the effect of changes in speed and incline slope on plantar pressure distribution of the foot during treadmill jogging. Plantar pressure parameters were measured with the Pedar-X system in twenty healthy girls (mean age of 20.7 years, mean height of 1.60m, and a mean weight of 53.3...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2010-03-01 00:00:00
abstract::Female breasts are vulnerable to direct blows or frictional injuries during sport; however, little research has investigated breast injuries experienced by female athletes. This study aimed to investigate the occurrence, causes and perceived performance effects of breast injuries in elite female athletes across a wide...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2019-08-01 00:00:00
abstract::For the determination of ground reaction forces in alpine skiing, pressure insole (PI) systems and portable force plate (FP) systems are well known and widely used in previous studies. The purposes of this study were 1) to provide reference data for the vertical component of the ground reaction forces (vGRF) during al...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2011-12-01 00:00:00
abstract::Recovery from prolonged strenuous exercise requires that depleted fuel stores be replenished, that damaged tissue be repaired and that training adaptations be initiated. Critical to these processes are the type, amount and timing of nutrient intake. Muscle glycogen is an essential fuel for intense exercise, whether th...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章,评审
doi:
更新日期:2004-09-01 00:00:00
abstract::The aim of this study was to compare heart rate (HR), blood lactate (LA) and rate of perceived exertion (RPE) responses to a tennis-specific interval training (i.e., on-court) session with that of a matched-on-time running interval training (i.e., off-court). Eight well-trained, male (n = 4) and female (n = 4) tennis ...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2011-09-01 00:00:00
abstract::The aim of this study was to evaluate the acute effects of unilateral ankle plantar flexors static-stretching (SS) on the passive range of movement (ROM) of the stretched limb, surface electromyography (sEMG) and single-leg bounce drop jump (SBDJ) performance measures of the ipsilateral stretched and contralateral non...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2015-05-08 00:00:00
abstract::The Objectives of the study were to investigate whether 400 µg inhaled salbutamol influences 3 km running time-trial performance and lung function in eucapnic voluntary hyperpnoea positive (EVH+ve) and negative (EVH-ve) individuals. Fourteen male participants (22.4 ± 1.6yrs; 76.4 ± 8.7kg; 1.80 ± 0.07 m); (7 EVH+ve; 7 ...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2017-12-01 00:00:00
abstract::The aim of this single-blind randomized controlled trial was to compare the effects of plyometric jump training (PJT), with (RG) and without (NRG) between-session drill randomization, on performance measures (i.e., jumping and sprinting abilities, change of direction speed, and technical performance) in youth male bas...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2018-08-14 00:00:00
abstract::The difference in the efficacy of altered stimulation parameters in whole-body-electromyostimulation (WB-EMS) training remains largely unexplored. However, higher impulse frequencies (>50 Hz) might be most adequate for strength gain. The aim of this study was to analyze potential differences in sports-related performa...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2020-05-01 00:00:00
abstract::Trapezoid fractures are relatively rare upper limb fractures. The case report of a trapezoid stress fracture in the dominant hand of a 22 year old international standard shot-putter is presented. ...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2012-12-01 00:00:00
abstract::The objectives of the study were to determine the validity and reliability of peak velocity (PV), average velocity (AV), peak power (PP) and average power (AP) measurements were made using a linear position transducer. Validity was assessed by comparing measurements simultaneously obtained using the Tendo Weightliftin...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2015-03-01 00:00:00
abstract::The purpose of this study was to investigate the reliability of the Aerobic Power Index (API) submaximal cardiorespiratory exercise test, as well as associated variables of oxygen uptake (ml·kg(-1)·min(-1)) and ratings of perceived exertion (RPE) in cancer patients who are generally unable to complete maximal or lengt...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2012-12-01 00:00:00
abstract::Despite the prevalence of shoulder injury in kayakers, limited published research examining associated upper limb kinematics and recruitment patterns exists. Altered muscle recruitment patterns on-ergometer vs. on-water kayaking were recently reported, however, mechanisms underlying changes remain to be elucidated. Th...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2012-09-01 00:00:00
abstract::This prospective cohort study aims to assess the overall incidence of acute and overuse basketball injuries and identifies risk factors associated with ankle sprains and knee overuse injuries. In total, 164 senior players (23.7 years ± 7.0) of all levels of play, and including both men and women, participated voluntar...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2007-06-01 00:00:00
abstract::Older women may have chronic or age-related conditions that increase the risk of falls or that limit their ability to remain active. It is unclear if a water-based exercise program provides a safe and effective alternative to land-based exercise. The purpose of this study was to evaluate the impact of a water-based ex...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2013-12-01 00:00:00
abstract::This study evaluated the effects of high-dose of short-term creatine supplementation (5g.kg(-1).day(-1) to 1 week) and long-term creatine supplementation (1g.kg(-1). day(-1) to 4-8 weeks) on kidney and liver structure and function of sedentary and exercised Wistar rats (Exercise sessions consisted of swimming at 80% o...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2009-12-01 00:00:00
abstract::This study compared stride length, stride frequency, contact time, flight time and foot-strike patterns (FSP) when running barefoot, and in minimalist and conventional running shoes. Habitually shod male athletes (n = 14; age 25 ± 6 yr; competitive running experience 8 ± 3 yr) completed a randomised order of 6 by 4-mi...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章
doi:
更新日期:2014-05-01 00:00:00
abstract::In the basic principles of CrossFit®, the goal is to improve fitness, related to the simultaneous development of strength and endurance. This is also the main idea of concurrent training, which has been researched since the 1980s. This article aimed to analyze the acute and chronic effects of CrossFit® and to assess t...
journal_title:Journal of sports science & medicine
pub_type: 杂志文章,评审
doi:
更新日期:2020-11-19 00:00:00