Browsing by Author "Lee, Marcus Beng Chong"
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- PublicationOpen AccessBody weight satisfaction and disordered eating among youth who are active in sport in Singapore(2015)
; Lee, Marcus Beng ChongPurpose: The research examined the relationship between body weight satisfaction and disordered eating among youth who are active in sport in Singapore. Method: 137 youths (82 boys and 55 girls; age 12-13) enrolled in school sport completed two self report questionnaires- SCOFF for disordered eating and body weight satisfaction- on two separate occasions that were six months apart (T1 vs. T2). Results: Body mass index for age classifications revealed that 5.1% were severely underweight; 1.5% underweight; 88.3% acceptable weight; 4.4% overweight and 0.7% were severely overweight. Conclusions: (i) the prevalence of disordered eating was 46% at baseline measurement and this remained stable at 45.3% six months later; (ii) there was no sex difference for disordered eating on the two measurement occasions (T1 vs. T2, p>0.05); (iii) the prevalence of youths unsure of their bodyweight satisfaction was 26.6-21.2% which compared to 88.3% adjudged to be of healthy weight; across T1 and T2, more male subjects wanted to gain bodyweight while more female subjects wanted to lose bodyweight; and (iv) subjects who were dissatisfied with their bodyweight had significantly greater odds of being at risk for developing DE. Holistic education programmes based upon body image and nutrition, are recommended.WOS© Citations 4 242 352 - PublicationOpen AccessPalatable flavoured fluids without carbohydrates and electrolytes do not enhance voluntary fluid consumption in male collegiate basketball players in the heat(2021)
;Taim, Bernadette Cherianne ;Haresh T. Suppiah ;Wee, Jericho ;Lee, Marcus Beng Chong ;Lee, Jason Kai WeiUsing palatable fluids to enhance drinking in athletes who display insufficient compensatory hydration behaviour may mitigate the risks of hypohydration and performance deficits. However, it is unclear whether flavour can independently enhance fluid consumption. This study examined the effects of a colourless, artificially sweetened flavoured water (FW), without carbohydrates and with negligible amounts of sodium, compared to plain water (W) on fluid consumption in male collegiate basketball players in a practical game setting. Eighteen male basketball players (age 23.1 ± 1.3 years) played a 3v3 basketball small-sided game. The players were randomly assigned to consume either FW or W. Pre- game urine-specific gravity, fluid consumption, body mass, and hedonic taste perceptions were assessed. Basketball performance was analysed through notational analysis. Ratings of perceived exertion and thirst were recorded at pre-, post-game, and at each rest period. Heart rate was recorded throughout the gameplay. Despite significantly higher hedonic ratings for FW than W (6.78 ± 0.83 vs. 5.56 ± 1.33, p = 0.033, d = 1.36), there were no significant differences in fluid consumption (1083 ± 32 mL vs. 1421 ± 403 mL, p = 0.068, d = 0.92). Our result highlighted that using palatable fluids as a strategy to increase fluid consumption during high- intensity gameplay in the heat may not be effective if used without carbohydrates and electrolytes. Practitioners could consider both fluid palatability and composition in establishing a hydration plan for athletes.WOS© Citations 1Scopus© Citations 1 96 66 - PublicationOpen AccessRelationship between quality of life and resilience among sport-active Singaporean youth(2015)
; Lee, Marcus Beng ChongPurpose: The study examines the relationship between paediatric quality of life (PEDSQL) and resilience, measured by the Singapore Youth Resilience Scale (SYRESS) among sport-active youth transiting from primary to secondary school education in Singapore.
Method: The participants were 137 student-athletes aged 12.7 ± 0.3 years, height 156.0 ± 12.9 cm, and body mass 46.4 ± 10.2kg. PEDsQL and SYRESS questionnaires were administered at the start of the academic year and repeated again six months later.
Results: Total health (PEDsQL) scores were significantly greater at baseline than when measured six months later (77.3±11.9 vs 72.1±11.8; p<0.05) but there was no significant change in the SYRESS score (198.2 ± 25.3 vs 194.0 ± 27.4; p>0.05). Total health in PEDsQL was significantly correlated to SYRESS scores at both time points (Baseline rs=0.61,p<0.01; baseline plus 6 months rs=0.58, p<0.01).
Conclusions: The results reflect a linkage between student‟s resilience and PedsQL outcomes. Student-athletes perceived the transition from primary to secondary school to be a difficult period and sport-active youth are a unique population compared to normal school going youth.WOS© Citations 5 266 433 - PublicationRestrictedRelationship of training load with the capability to perform repeated high-intensity running in professional soccer players(2017)Lee, Marcus Beng ChongIn professional soccer, competitive matches are played on a weekly basis throughout the season that usually lasts for a period of about ten months. In order to maximize the likelihood of achieving success in matches, players are required to maintain the capability to perform repeated high-intensity running throughout the season. To achieve this, the management of the external (prescribed) and internal (responses) training load during soccer training sessions is paramount so as to better assist coaches and sports scientists in the planning, evaluation, and adjustment of training. In addition, establishing the relationship of training load with the capability to perform repeated high-intensity running can provide practitioners with evidence- based understanding and the usefulness of training load indicators especially those that closely relate to physical performance in soccer.
To investigate this relationship, the research was conducted on a professional soccer club across four different phases of the season (mid, late, early in-season and pre-season). Laboratory test to determine soccer players’ physiological profile was performed twice (mid in-season and pre- season). Field based tests of repeated high-intensity running capability, the YoYo Intermittent Recovery Test (YYIR 2) was conducted in all phases of the season while the repeated sprint ability (RSA) test was conducted at three phases of the season (early, mid in-season and pre-season). Training load data (global positioning system, heart rate and session rating of perceived exertion) and perceived rating of wellness were also collected across each phase. Results showed that there were similarities and differences in the relationship between training load variables and YYIR 2 performance. The results in phase 1 (mid in-season) showed that Lucia’s TRIMP (TRIMPL) and YYIR 2 was inversely correlated (r = −.6; p = .04). In phase 2 (late in-season), training load variables that were significantly correlated with YYIR 2 (r = .81; p <. 01, r = .77; p = .01, r = .88; p <. 01, r = .67; p = .03) included total distance (TD), work-rate (WR), low-intensity distance (LID) and playerload (PL). In phase 3 (pre-season), apart from TD and WR, the training load variable MID was significantly correlated with YYIR 2 performance (r = .65; p = .04, r = .80; p = .01, r =.83; p < .01). There were also significant inverse correlations between PL with 10 and 20m sprint performances (r = −.70; p = .04, r = −.61; p = .02). In phase 4 (early in season), TD, WR, LID and time spent in Lucia Zone 3 were significantly correlated with YYIR 2 performance (r = .58; p = .04, r = .67; p = .01, r = .55; p = .04, r = .54; p = .04). The findings showed that the relationship between training load and the capability to perform repeated high-intensity running was influenced by the phase of the season and choice of training load variables. The variation and the magnitude of the relationship displayed across the four different phases highlight the need to consider the types of ‘load’ and ‘intensity’ at different phases of the season in order to maximize performance. Practitioners should consider implementation of the identified training load variables within their monitoring practices and adopt a multi-dimensional approach in the management of training load in professional soccer players.227 32