National Sports Institute of Malaysia

Kuala Lumpur, Malaysia

National Sports Institute of Malaysia

Kuala Lumpur, Malaysia
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Loo L.H.,National Sports Institute of Malaysia | Wilson N.C.,National Health Research Institute | Chai W.J.,National Sports Institute of Malaysia
IFMBE Proceedings | Year: 2017

This study was aim to compare the anthropometric profiles of Malaysian state and national swimmers, compare the basic physical characteristics with world class swimmers, compare the world class data of 1991 with more recent international swimmer data. Sixty-three state swimmers (25 females, 38 males) and 18 national swimmers (10 females, 8 males) were assessed. The national swimmers were compared with 401 world class swimmers from the 1991 Perth World Championships and other recent international data. Anthropometric profiles for Malaysian swimmers were collected according to the standardized ISAK protocol. Somatotype was derived by anthropometic variables according to Heath-Carter somatotype scale. State swimmers were younger, lighter, shorter and smaller on girth measurements compared to national swimmers. World class swimmers were older, heavier, taller (p<0.01) and possessed greater humerus breadth (p<0.05) compared to Malaysian national swimmers. Malaysian swimmers were consistently shorter and lighter compared to other international swimmers. Malaysian male swimmers had a similar ecto-mesomorphic somatotype (2-5-3) when compared to world class athletes; however, female national swimmers had higher endomorphy ratings (p<0.05) than world class swimmers. This study identified key anthropometric characteristics (greater weight, height, and limb girth) which may be beneficial to swimming performance and should be emphasized in talent identification programs. © Springer Nature Singapore Pte Ltd. 2017.

Chok C.L.,National Sports Institute of Malaysia | Joseph S.,National Sports Institute of Malaysia
IFMBE Proceedings | Year: 2017

The purpose of this study was to investigate the effects of generic foot arch support insoles on the center of foot pressure in Double-Legs-Stance, Single-Right-Leg-Stance, Single-Left-Leg-Stance, Right-Tandem-Stance and Left- Tandem-Stance. Ten healthy adults (male=5, female=5) were recruited in this study. Subjects were tested with no insole (Insole-A) and three different design of insoles (Insole-B, C and D) in each type of standing mode. A pressure mapping sensor (25Hz) with 25 sensel per square inch spatial resolution and pressure measurement system software were used to collect the center of pressure movements. A non-parametric Friedman test with Wilcoxon singed-ranks post-hoc test were used to analyze the significant effects of the insole. There was significant differences in anteroposterior travelled distance across insole support types, χ2(3, N=10) = 9.120, p < 0.05 for Double-Leg-Stance. However post-hoc test indicates that no significant difference in between any paired of insoles. Significant differences were found in anteroposterior peak velocity across insole support types for Single-Right-Leg- Stance, χ2(3, N=10) = 8.567, p < 0.05. Post-hoc test indicates that there is a significant difference in anteroposterior peak velocity for the Insole-C and Insole-B, z = -2.550, p < 0.05, with lower peak velocity of center of pressure shift in Insole-C. There were no significant differences found in Single-Left-Leg- Stance and Right-Tandem-Stance across all types of insole support. The results of the Friedman test indicate that no significant differences exist in Right-Tandem-Stance across all types of insole sup-port. There were significant differences in mediolateral range, mediolateral travelled distance and mediolateral position standard deviation across insole support types with chi square, χ2(3, N=10) = 9.0, χ2(3, N=10) = 9.12, χ2(3, N=10) = 8.04, p < 0.05 respectively for Left-Tandem- Stance. This study concludes that the generic foot arch support insoles have no significant positive instantaneous effects on center of pressure measurement. © Springer Nature Singapore Pte Ltd. 2017.

Selva Y.,National Sports Institute of Malaysia | Joseph S.,National Sports Institute of Malaysia
IFMBE Proceedings | Year: 2017

Posture stability and consistency is one of the important factors in shooting. The study aims to investigate the correlation between the stability parameters and score for air rifle and air pistol shooters. It also explores and compare the dominant inter variable correlation among pistol and rifle shooters. 11 Malaysian shooting athletes (6 air rifle and 5 air pistol) participated in the study. The data were collected (Male athletes fired 60 competition shots in 75 minutes while female athletes fired 40 competition shots within 50 minutes) during training. Scoring value was obtained from electronic scoring system and Scatt system. Simultaneously, Tekscan pressure insoles were used to collect data from all shooters. Dependent variables such as body weight distribution percentage, anterior-posterior displacement velocity and medial-lateral displacement velocity were extracted for analysis from all shots. Bivariate correlation analyses were applied to obtain correlation strength from analyzed parameters. Overall, there were no strong correlations between investigated variables with score for both air pistol and rifle athletes. The highest correlation value for air pistol shooters was found between anterior-posterior displacement velocity of right feet and medial- lateral displacement velocity of left feet (r = 0.948). Meanwhile, air rifle shooters exhibit the highest correlation value between the medial-lateral displacement velocity and anterior-posterior displacement velocity of left feet (r = 0.991). Based on intra-individual analysis, moderate correlation between score and percentage of weight placed on both feet existed for one female air pistol shooter. The scores obtained by shooter are not highly influenced by the body weight distribution percentage and centre of pressure displacement velocity. The air pistol shooters display a higher number of strongly correlated variables than air rifle shooters. Inter-relationship between the variables existed for pistol shooters where displacement velocity in right feet influenced the displacement velocity in left feet and vice versa. Based on the intra-individual analysis that was conducted, 2 pistol athletes and 1 rifle athlete was found to have correlation between investigated variables and score. © Springer Nature Singapore Pte Ltd. 2017.

Croft H.,Institute of Sport and Adventure | Suwarganda E.K.,National Sports Institute of Malaysia | Syed Omar S.F.,National Sports Institute of Malaysia
Sports Technology | Year: 2013

The use of player-mounted cameras (PMCs) in sport is not new; however, most existing PMC devices do not have the ability to transmit footage as it is captured. This appears to be due to the size and cost of transmitters, batteries and aerials. Instead, the footage is normally stored locally (within the device) on a hard drive or a removable secure digital card. Due to this limitation, PMC devices are not often utilized for coaching feedback, as there is significant delay before being able to view the footage. This paper will describe the development of a novel, non-intrusive PMC that transmits player vantage point footage in real time, captured to a viewing laptop for immediate review by coaches and players. Applications of this technology to rugby union, karate and silat (a South-East Asian martial art) will be described, outlining how the coaches utilize the technology to demonstrate important visual cues to players for the improvement of decision-making. Finally, the strengths and limitation of this technology will be discussed with recommendations for future development. © 2013 Copyright Taylor and Francis Group, LLC.

Yeo W.K.,RMIT University | Yeo W.K.,National Sports Institute of Malaysia | Carey A.L.,RMIT University | Carey A.L.,Baker IDI Heart and Diabetes Institute | And 3 more authors.
Applied Physiology, Nutrition and Metabolism | Year: 2011

The performance of prolonged (>90 min), continuous, endurance exercise is limited by endogenous carbohydrate (CHO) stores. Accordingly, for many decades, sports nutritionists and exercise physiologists have proposed a number of diet-training strategies that have the potential to increase fatty acid availability and rates of lipid oxidation and thereby attenuate the rate of glycogen utilization during exercise. Because the acute ingestion of exogenous substrates (primarily CHO) during exercise has little effect on the rates of muscle glycogenolysis, recent studies have focused on short-term (<1-2 weeks) diet-training interventions that increase endogenous substrate stores (i.e., muscle glycogen and lipids) and alter patterns of substrate utilization during exercise. One such strategy is "fat adaptation", an intervention in which welltrained endurance athletes consume a high-fat, low-CHO diet for up to 2 weeks while undertaking their normal training and then immediately follow this by CHO restoration (consuming a high-CHO diet and tapering for 1-3 days before a major endurance event). Compared with an isoenergetic CHO diet for the same intervention period, this "dietary periodization" protocol increases the rate of whole-body and muscle fat oxidation while attenuating the rate of muscle glycogenolysis during submaximal exercise. Of note is that these metabolic perturbations favouring the oxidation of fat persist even in the face of restored endogenous CHO stores and increased exogenous CHO availability. Here we review the current knowledge of some of the potential mechanisms by which skeletal muscle sustains high rates of fat oxidation in the face of high exogenous and endogenous CHO availability.

Lan M.F.,National Sports Institute of Malaysia | Lane A.M.,University of Wolverhampton | Roy J.,National Sports Institute of Malaysia | Hanin N.A.,National Sports Institute of Malaysia
Journal of Sports Science and Medicine | Year: 2012

The aim of the present study was to investigate the factorial validity of the Brunel Mood Scale for use with Malaysian athletes. Athletes (N = 1485 athletes) competing at the Malaysian Games completed the Brunel of Mood Scale (BRUMS). Confirmatory Factor Analysis (CFA) results indicated a Confirmatory Fit Index (CFI) of 90 and Root Mean Squared Error of Approximation (RMSEA) was 0.05. The CFI was below the 0.95 criterion for acceptability and the RMSEA value was within the limits for acceptability suggested by Hu and Bentler (1999). We suggest that results provide some support for validity of the BRUMS for use with Malaysian athletes. Given the large sample size used in the present study, descriptive statistics could be used as normative data for Malaysian athletes. © Journal of Sports Science and Medicine.

Roy J.,National Sports Institute of Malaysia | Hwa O.C.,National Sports Institute of Malaysia | Singh R.,Universiti Sains Malaysia | Aziz A.R.,Singapore Sports Institute | Jin C.W.,National Sports Institute of Malaysia
Journal of Sports Science and Medicine | Year: 2011

The study explored the self-generated coping strategies employed by Muslim athletes from South East Asian region during the Ramadan fasting month. Sixty-five National elite Muslim athletes responded to an open-ended question on coping strategies employed during Ramadan fasting. Inductive content analysis identified five general dimensions from 54 meaning units which were abstracted into 14 first-order themes and 10 second order themes. The general dimension included four problemfocused coping: training modifications, dietary habits, psychological, rest and recovery, and one emotion-focused coping i.e., self- control. The coping strategies employed were diverse and dynamic in nature and no specific pattern was evident. The most frequently employed strategies were associated with training and dietary habits. Emotion focused coping was the least frequently used by the athletes. ©Journal of Sports Science and Medicine.

Nadarajan V.S.,University of Malaya | Ooi C.H.,National Sports Institute of Malaysia | Sthaneshwar P.,University of Malaya | Thompson M.W.,National Sports Institute of Malaysia | Thompson M.W.,University of Sydney
International Journal of Laboratory Hematology | Year: 2010

Altitude training is sometimes employed by elite endurance athletes to improve their sea level performance. This improvement results from the increased red cell mass consequent upon the boost in erythropoietin (EPO) level that occurs as a response to the relatively hypoxic environment at high altitudes. We measured serum EPO levels together with various red cell and reticulocyte parameters including immature reticulocyte fraction (IRF) in eight national track-endurance cyclists, resident at sea-level, prior to and upon return from an altitude of approximately 1905 m. Reticulocytes and soluble transferrin receptor (sTfR) were significantly increased with reduction in ferritin levels immediately on return from high altitude indicating increased erythropoietic activity. IRF in particular showed a significant peak immediately on return but decline to sub-baseline levels by day 9, and recovery to baseline by day 16. Our results indicate that IRF is a sensitive marker of erythropoietic status in athletes undergoing altitude training and subsequent loss of EPO stimuli on return to sea level. © 2009 Blackwell Publishing Ltd, Int.

Hamid M.S.A.,University of Malaya | Hamid M.S.A.,National Sports Institute of Malaysia | Mohamed Ali M.R.,University of Malaya | Yusof A.,University of Malaya | George J.,University of Malaya
BMC Musculoskeletal Disorders | Year: 2012

Background: Muscle injuries are one of the commonest injuries affecting athletes. It often leads to significant pain and disability causing loss of training and competition time. With current treatment, the duration to return-to-play ranges form six weeks to never, depending on injury severity. Recent researches have suggested that autologous platelet-rich plasma (PRP) injection into the injured site may hasten soft tissues healing. To-date, there has been no randomised clinical trials to evaluate the effects of PRP on muscle healing. The aim of this study is to examine the effects of autologous PRP on duration to return-to-play after muscle injury. Methods and design. A randomised, single blind controlled trial will be conducted. Twenty-eight patients aged 18years and above with a recent grade-2 hamstring injury will be invited to take part. Participants will be randomised to receive either autologous PRP injection with rehabilitation programme, or rehabilitation programme only. Participants will be followed up at day three of study and then weekly for 16weeks. At each follow up visit, participants will be assessed on readiness to return-to-play using a set of criteria. The primary end-point is when participants have fulfilled the return-to-play criteria or end of 16weeks. The main outcome measure of this study is the duration to return-to-play after injury. Conclusion: This study protocol proposes a rigorous and potential significant evaluation of PRP use for grade-2 hamstring injury. If proven effective such findings could be of great benefit for patients with similar injuries. Trial registration. Current Controlled Trials ISCRTN66528592. © 2012 A Hamid et al.; licensee BioMed Central Ltd.

PubMed | National Sports Institute of Malaysia
Type: Journal Article | Journal: Journal of sport rehabilitation | Year: 2016

The Unexpected-Disturbance Program (UDP) promotes exercises in response to so-called involuntary short- to midlatency disturbances.This study investigated the effectiveness of the UDP in the last 6 wk of rehabilitation.Pre-post study with 2-tailed paired t tests for limited a priori comparisons to examine differences.National Sports Institute of Malaysia.24 Malaysian national athletes.7 sessions/wk of 90 min with 3 sessions allocated for 5 or 6 UDP exercises.Significant improvements for men and women were noted. Tests included 20-m sprint, 1-repetition-maximum single-leg press, standing long jump, single-leg sway, and a psychological questionnaire.For men and women, respectively, average strength improvements of 22% (d = 0.96) and 29% (d = 1.05), sprint time of 3% (d = 1.06) and 4% (d = 0.58), and distance jumped of 4% (d = 0.59) and 6% (d = 0.47) were noted. In addition, athletes reported improved perceived confidence in their abilities. All athletes improved in each functional test except for long jump in 2 of the athletes. Mediolateral sway decreased in 18 of the 22 athletes for the injured limb.The prevention training with UDP resulted in improved conditioning and seems to decrease mediolateral sway.

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