Cardiopulmonary fitness in a sample of Malaysian population.

Singh, Rabindarjeet; Singh, Harbindar Jeet Singh Gurcharan; Sirisinghe, R. G.

doi:10.2170/jjphysiol.39.475

Cited by 14 publications

(10 citation statements)

References 21 publications

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“…Recently, well-designed studies that measured CRF directly using the treadmill test have been published for relatively large populations, especially for Westerners [12][13][14]. Although there have been attempts to present age-related mean reference values for Asian populations [24,[27][28][29], these studies also had small sample sizes and/or used cycle ergometers instead of the treadmill test.…”

Section: Discussionmentioning

confidence: 99%

Reference Values for Cardiorespiratory Fitness in Healthy Koreans

Jang

Kim

Kang

et al. 2019

JCM

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We investigated reference values for cardiorespiratory fitness (CRF) for healthy Koreans and Koreans with coronary heart disease (CHD) and used them to identify inter-ethnic differences in CRF, differences over time in CRF, and differences in CRF between the healthy population and patients with CHD. The study population for healthy Koreans was derived from the database of KISS FitS (Korea Institute of Sports Science Fitness Standards) between 2014 and 2015. The study population for Koreans with CHD was derived from the database of the Korea University Guro Hospital Cardiac Rehabilitation Registry between June 2015 and December 2018. In healthy Koreans, there was a significant difference between sex and age groups for VO 2 max. The VO 2 max of healthy Koreans differed from that of Westerners in age-related reference values. Our results were not significantly different from those of the Korean population in the past, except for a small decline in the young population. There seemed to be a clear inter-ethnic difference in CRF. We could also identify signs of small change in CRF in younger age groups. Therefore, CRF should be assessed according to ethnic or national standards, and it will be necessary to establish a reference for each nation or ethnicity with periodic updates.

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Section: Discussionmentioning

confidence: 99%

Reference Values for Cardiorespiratory Fitness in Healthy Koreans

Jang

Kim

Kang

et al. 2019

JCM

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“…sepak takraw players were within Malaysian population norms. 10 When compared to body weights of players from other sports (in order to provide us with a picture of where sepak takraw players rank in terms of anthropometry and physiological capabilities), the mean weight of the U23 players was found to be lower than that of Italian 15 and Indian 11 badminton players. The sepak takraw players also appear somewhat leaner and less muscular.…”

Section: Discussionmentioning

confidence: 99%

Anthropometric and physiological profiles of sepak takraw players

Jawis

Singh

et al. 2005

Br J Sports Med

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Objectives: Anthropometric and physiological profiles of national sepak takraw players were determined. Methods: Thirty nine players, specialising in the three playing positions (tekong/server, feeder, and killer/ spiker) were divided into three age categories of under 15 (U15), under 18 (U18), and under 23 (U23) years of age. Height, weight, percent body fat (%bf), maximum oxygen consumption (Vo 2max ), range of motion (ROM), back and leg strength, and heart rate, for the estimation of oxygen consumption during matches, were recorded. Statistical analysis was performed using one way ANOVA for independent measurements and data are presented as mean¡standard deviation. Results: The U23 players were significantly taller and heavier with significantly better ROM of the neck, trunk, and ankle joints and back and leg strength than the U15 players. No significant difference was found in %bf between the three age categories. Mean maximum heart rate during exercise was significantly higher in the U15 group when compared to the U18 and U23 groups (p,0.05). Mean Vo 2max was similar between the three groups. Estimated oxygen consumption during matches was 69.1%, 68.5%, and 56.4% of Vo 2max in the killer, tekong, and the feeder groups, respectively. Conclusions: The mean height, body weight, and cardiopulmonary capacities of the players were within the Malaysian population norms, but were somewhat lower than those of players of other court games from other countries. %bf was also lower in these players. This study provides the much needed anthropometric and physiological data of sepak takraw players for further development of this sport. F ollowing its introduction in the 10th Asian Games in Beijing in 1990, and as a demonstration sport in the 1998 Commonwealth Games in Kuala Lumpur, sepak takraw has become one of the fastest growing games in Asia and has spread to over 20 countries including Argentina, Australia, Brazil, Canada, Korea, Germany, England, India, Japan, Puerto Rico, Spain, and the USA. The game is played on an area the size of a doubles badminton court, with three players on each side of a 1.52 m high net (fig 1). A team consists of three players: feeder, tekong/server, and spiker/killer.

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“…For this the subjects were required to cycle on an ergometer at 60 RPM until exhaustion. During this test, the initial workload was set at 50 Watts and it was increased by 16 Watts every minute until the subject reached volitional exhaustion, i.e., was unable to maintain a pedaling speed of 60 RPM in a neutral environment (Ta: 24.2Ϯ0.18°C, rh: 66.4Ϯ1.4%) (Singh et al, 1989). From the data obtained in the submaximal exercise test and the VO 2max test, the workload which would elicit 40% VO 2max of a subject was calculated.…”

Section: Methodsmentioning

confidence: 99%

Effects of Exercise in the Heat on Thermoregulation of Japanese and Malaysian Males

Saat

Tochihara

Hashiguchi

et al. 2005

J. Physiol. Anthropol.

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The effect of low-intensity exercise in the heat on thermoregulation and certain biochemical changes in temperate and tropical subjects under poorly and well-hydrated states was examined. Two VO 2max matched groups of subjects consisting of 8 Japanese (JS) and 8 Malaysians (MS) participated in this study under two conditions: poorlyhydrated (no water was given) and well-hydrated (3 mL · Kg Ϫ1 body weight of water was provided at onset of exercise, and the 15th, 35th and 55th min of exercise). The experimental room in both countries was adjusted to a constant level (Ta: 31.6Ϯ0.03°C, rh: 72.3Ϯ0.13%). Subjects spent an initial 10 min rest, 60 min of cycling at 40% VO 2max and then 40 min recovery in the experimental room. Rectal temperatures (T re ) skin temperatures (T sk ), heart rate (HR), heat-activated sweat glands density (HASG), local sweat rate (M sw-back ) and percent dehydration were recorded during the test. Blood samples were analysed for plasma glucose and lactate levels.The extent of dehydration was significantly higher in the combined groups of JS (1.43Ϯ0.08%) compared to MS (1.15Ϯ0.05%). During exercise M sw-back was significantly higher in JS compared to MS in the well-hydrated condition. The HASG was significantly more in JS compared to MS at rest and recovery. T re was higher in MS during the test. T sk was significantly higher starting at the 5th min of exercise until the end of the recovery period in MS compared to JS.In conclusion, tropical natives have lower M sw-back associated with higher T sk and T re during the rest, exercise and recovery periods. However, temperate natives have higher M sw-back and lower T sk and T re during experiments in a hot environment. This phenomenon occurs in both poorly-hydrated and wellhydrated states with low intensity exercise. The differences in M sw-back , T sk and T re are probably due to a setting of the core temperature at a higher level and enhancement of dry heat loss, which occurred during passive heat exposure.

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Cardiopulmonary fitness in a sample of Malaysian population.

Cited by 14 publications

References 21 publications

Reference Values for Cardiorespiratory Fitness in Healthy Koreans

Reference Values for Cardiorespiratory Fitness in Healthy Koreans

Anthropometric and physiological profiles of sepak takraw players

Effects of Exercise in the Heat on Thermoregulation of Japanese and Malaysian Males

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