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Health 2021年第5期13卷 505-525页

作者： Nadia Garashi jasem ramadan al-kandari Mario Barac Nieto Department of Physiology Health Sciences Center Kuwait University Jabriya Kuwait

The incidence of major chronic Non Communicable Diseases (NCD) medically diagnosed or treated, was studies in a cross section of Kuwait adult population as well as their daily levels of physical activity (PA) as recalled by the International Physical Activity Questionnaire, IPAQ. A group of 1957 subjects 17 - 65 years of age, representative of the Kuwait population was selected using last year high school students and their relatives as well as government workers in each Kuwait governorate. Descriptive statistics, frequency tables, chi square and Fisher tests were used. ANOVA or Mann Whitney and Kruskal-Wallis tests were used for comparisons. The percentage of subjects in the low categorical PA level (from IPAQ) is high (29.4%) even at a young age (17 - 24), similar in prevalence to overweight/obesity (30%). At age 45, obesity increases to 40% with little change in % subjects of low PA. Weighted average categorical PA was 1280 ***/week reflecting that the majority (40%) of subjects belonged to the moderate PA category. A high proportion (38%) of subjects in the 17 - 24 age category contributed to the observed level of PA activity. Incidence of overweight and obesity increased from 30 to more than 55% from the second to the sixth decade of life. Hyperlipidemias increased in incidence from 8% to 45% of the sample from the third to the sixth decades of age. Hypertension and diabetes increased from the 4th to the 6th decades of life to affect from 14% to 40% and from 10% to 36% of the studied population, respectively. Incidence of Heart Disease increased from 9% to 15% of the sample population, between the 5th and 6th decades of life. The data indicate a sequence of events, initiated by overweight and obesity as early as in the 2d decade of life, followed by hyperlipidemia in the 3d decade, diabetes and hypertension in the 4th, and heart disease in the 5th decade of life. Changes

关键词： Daily Physical Activity IPAQ Recall Survey Kuwait Cardiovascular Diabetes Hypertension Overweight Obesity Hyperlipidemia Age Adults

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Practical Use of Stairs to Assess Fitness, Prescribe and Perform Physical Activity Training

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Health 2016年第13期8卷 1402-1410页

作者： jasem ramadan al kandari Salman Mohammad Ruqayyah al-Hashem Girma Telahoun Mario Barac-Nieto Department of Physiology Faculty of Medicine Kuwait University Al-Khaldiya Kuwait Department of Physical Education College of Basic Education The Public Authority of Applied Education and Training Adailiyah Kuwait

Aim: Evaluating climbing stairs for prescription and implementation of physical activity regimes. Methods: Healthy females (F, n = 14), and males (M, n = 15) participated. By climbing 100 steps of stairs with 0.173 m height, Heart rate (HR) and oxygen uptake were measured throughout the floors;Blood pressure (BP) was measured at ground and the 5th floors only. Results: Energy increased from 2 to 7.6 was metabolic equivalents (METs = 3.5 ml O2/***) at 17.3 m elevation in 2 min. at the 5th floor, and percent Heart Rate Reserve (%HRR) was 66.17% in F and 48.7% in M, proportional to their aerobic efforts. Average climbing efficiency was 15.8 ± 2.3% (n = 29). Aerobic capacity estimated dividing the highest work rate (17.3 Kg.m/*** × 0.00239 = 0.0207 Kcal/***), by fractional effort (F = 0.6617, M = 0.487) and fractional efficiency (0.158), at 5 Kcal/L O2 was 0.040 in F and 0.054 L O2/*** in M. Minimum training intensity reached at the 3rd floor by F. In M the highest %HRR reached was 48.7% at the 5th floor, insufficient for training. Conclusions: Stairs used for submaximal evaluation of aerobic capacity and for target intensity prescription. Training, levels climbed, repetitions per day (if 5, 100 Kcal per day, ascending) and number of days/week are adjusted. Full regime requires up to 7.6 METs, a total of 532 and 140 ***/week ascending and descending, respectively. Intensities >7.6 MET, climbing rate should be >8.65 m/min. Limiting ascent to 1 (3.5 METs) or 2 (5.5 METs) floors or only descents (2 - 3 METs) may be used for unfit subjects. This method is useful for those with no access to sophisticated facilities.

关键词： Stair Climbing Descent Heart Rate Reserve Aerobic Effort Oxygen Cost Work Output Efficiency Aerobic Capacity Exercise Prescription Training

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Somatotype Components, Aerobic Fitness and Grip Strength in Kuwaiti Males and Females

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Health 2016年第13期8卷 1349-1355页

作者： jasem ramadan alkandari Mario Barac Nieto Department of Physiology Faculty of Medicine Kuwait University Kuwait City Kuwait

Introduction and Objective: We investigated the association of endo-, meso- and ecto-morphic components of somatotype with aerobic power, mid-trunk flexibility and grip strength. Methods: Healthy male (n = 226) and female (n = 86) subjects, aged 9 - 55 years, sedentary (n = 154) or participating in sports (n = 158) were studied. Anthro-pometrics (height, weight, 8 skin folds, arm and calf circumferences, elbow and knee diameters), maximal exercise O2 uptake, mid trunk flexibility, right and left grip strength were measured. Results: Sedentary adult females were endomorphic with mesomorph tendency, and had low aerobic power (27.8 ± 0.6 ml/Kg·min) and low (48.7 ± 1 Kg) grip strength. Sedentary males (young and adults) and Sports adult males were mesomorph with endomorphic tendency. Sports junior males were balanced mesomorph. Aerobic power was 54.1 ± 0.9 ml/Kg·min in sports young males, 53.8 ± 0.9 ml/Kg·min in sports adult males, 41.2 ± 4.3 ml/Kg·min in sedentary young males, and 39.5 ± 1 ml/Kg·min in sedentary adult males. Grip strength was 89.9 ± 1.7 Kg in sports adult males, 86.7 ± 2 Kg in sedentary adult males, 75.6 ± 2.2 Kg in sports junior males and 52 ± 9.1 Kg in young sedentary males. Step-wise multiple regression analysis of somatotype components on aerobic power revealed dominant negative contribution (P 2 = 0.57, 57%), and small but significant positive contributions of mesomorphy (0.6%) and ectomorphy (0.6%): Aerobic power = [56.1 - 4.3 (endomorphy) + (mesomorphy) + 1.4 (ectomorphy)] ± 9.1 SEE. Height and somatotype components accounted for 69% of the variance (R2) in grip strength;height had greatest contribution (60%): Grip Strength = [1.7 (Height) - 6.5 (ectomorphy) - 3.4 (endomorphy) - 2 (mesomorphy) - 200] ± 12.9 SEE. Measured variables accounted for <2% of flexibility variance. Conclusion: Endomorphy contributes greatly and negatively to variance in aerobic power. Body height was the anthropometric variable with th

关键词： Maximal Oxygen Uptake Endomorphy Mesomorphy Ectomorphy Grip Strength

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Peak O<sub>2</sub>Uptake Correlates with Fat Free Mass in Athletes but Not in Sedentary Subjects

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Health 2019年第1期11卷 40-49页

作者： jasem ramadan alkandari Mario Barac Nieto Department of Physiology Faculty of Medicine Kuwait University Kuwait City Kuwait

Objective: To characterize relationships between peak O2 uptake (VO2max) and fat free mass (FFM) in adult sedentary and in young and adult athletes. Methods: Healthy adult male sedentary workers or students reporting no regular physical activity in the last six months (n = 61, 31.0 ± 0.95 years) and young (n = 63, 15.8 ± 0.16 years) or adult (n = 85, 25.9 ± 0.48 years) males athletes were studied. Sports were classified according to their MET intensity. Bruce’s treadmill protocol served to measure VO2max. Weight and seven skin-fold thicknesses were used to estimate body density and FFM. Subjects signed informed-consent forms before the tests. Results: The significant correlations (R2 = 0.48, p 2max or of log FFM with log VO2max (R2 = 0.53, p 2 = 0.34 & 0.30), and not significant (R2 = 0.19 & 0.17, p > 0.05) in sedentary subjects. Stepwise multiple regression analysis (R2 = 0.65) indicated that VO2max depended on FFM, heart rates and MET intensity of practiced sport in athletes. In sedentary subjects VO2max was insignificantly (R2 = 0.18) related to flexibility. Discussion: Skin-fold based FFM reliably reflects maximally active muscle mass in young athletes, to a lesser extent in adult athletes but not in adult sedentary subjects. In sedentary, VO2max is often limited by local pain and fatigue and does not reflect the capacity of the oxygen extraction system. In sedentary, varying proportions of surface fat, muscle and bone increase variability in the relationship between skinfolds and FFM.

关键词： VO2max Lean Body Mass Physical Activity Age Regression Analysis

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