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Results for “BODY CONSTITUTION”

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At least 19 recordsLinked to original sources
PubMed2002

Dynamic observations of their body constitution status in Zhuang students of Guangxi from 1985 to 2000.

OBJECTIVE: To study the rules of changes in body constitution of Zhuang students in Guangxi and factors influencing it. METHOD: Data on body constitution of Zhuang students aged seven to 22 in the year of 2000 were compared with those in 1985. RESULTS: The average height of Zhuang students increased by 3.80 cm and 2.45 cm for boys and girls in urban areas, respectively from 1985 to 2000 in Guangxi, and by 1.40 cm and 1.32 cm in rural areas, respectively. The average weight increased by 3.58 and 1.90 kg for boys and girls in urban areas, respectively, and by 0.65 kg and 0.02 kg in rural areas, respectively. The average chest circumference increased by 2.09 and 1.28 cm for boys and girls in urban areas, respectively, but in the rural areas, that for boys increased by 0.08 cm and for girls decreased by 0.01 cm. The average systolic blood pressure (BP) decreased by 4.33 mm Hg and 5.06 mm Hg (0.58 kPa and 0.67 kPa) for boys and girls in urban areas, respectively, and by 5.04 mm Hg and 7.03 mm Hg (0.67 kPa and 0.94 kPa) in rural areas, respectively. The average diastolic BP increased by 12.04 mm Hg and 10.84 mm Hg (1.60 kPa and 1.44 kPa) for boys and girls in urban areas, respectively, and by 8.72 mm Hg and 6.54 mm Hg (1.16 kPa and 0.87 kPa) in rural areas, respectively. The average vital capacity increased by 195.15 ml and 109.75 ml, and 23.54 ml and 13.44 ml for urban boys and girls, and rural boys and girls, respectively. The average record of 50 m x 8 run to and for decreased by 5.00 s and 8.79 s for urban boys and girls, respectively, and by 5.27 s and 7.21 s for rural boys and girls, respectively. The average record of 1 000 m run decreased by 19.85 s and 23.88 s for urban and rural boys, respectively, and that of 800 m run decreased by 23.19 s and 6.25 s for urban and rural girls, respectively. CONCLUSIONS: The results mentioned above suggested that provision of reasonable nutrition and active physical training for the Zhuang students are basic measures to improve their body constitution and promote their levels of growth and development.

Adolescent↗
PubMed1991

Effects of body constitution and age on maximum pacing rate of activity-modulated rate responsive pacemakers.

UNLABELLED: The pacing rate of activity-modulated pacemakers is triggered by vibrations running through the body. Whether the body constitution predicts maximum pacing rate and may facilitate rate response programming was studied in 16 patients with Activitrax pacemakers. Rate response parameters were programmed to a fixed setting in VVIR/VOOR mode (lower pacing rate 60 ppm, upper pacing rate 125-130 ppm, activity threshold medium/7). Body vibrations were induced by a treadmill exercise test with increasing speed. Maximum pacing rates were measured at the stage of symptom-limited tolerance. Exercise tests with a duration of 7.3 +/- 2.9 minutes resulted in a maximum pacing rate of 98 +/- 22 ppm ranging from 60-122 ppm. Maximum pacing rates did not differ between male (n = 10; 102 +/- 21 ppm) and female (n = 6; 92 +/- 24 ppm). Correlations between maximum pacing rates and body constitutional factors were not significant with r = -0.15 (weight), r = 0.39 (height), r = 0.07 (body surface area), and r = -0.27 (skin-fold thickness). The correlations with body mass index (r = -0.53) and age (r = -0.53) were initially significant, but not after Bonferroni-Simes-Hommel correction. The age-dependent relationship may be caused by the shorter exercise duration of older patients indicated by the correlation between exercise duration and maximum pacing rate (r = 0.77), as well as with age (r = -0.73). CONCLUSIONS: body constitution did not modify body vibrations and did not allow prediction of maximum pacing rates; therefore, it is no aid for the programming of rate response parameters.

Aging↗
PubMed1996

High bone mass and altered relationships between bone mass, muscle strength, and body constitution in adolescent boys on a high level of physical activity.

We have recently demonstrated a general relationship between bone mass, muscle strength, and several body constitutional parameters in adolescent boys with a moderate exercise level. The present study was conducted to evaluate these previously described relationships in adolescent boys subjected to high physical activity and also to compare the bone mass of the same group with that of adolescents on a moderate level of physical activity. The reference group consisted of 24 boys, age 15.9 +/- 0.3 years, not training for more than 3 h per week. The ice hockey players consisted of 20 boys, age 15.9 +/- 0.3 years, from an ice hockey junior team training for about 10 h per week. The groups were matched according to age, pubertal stage, and weight. Areal bone mineral density (BMD) was measured in total body, head, humerus, spine, femur, and proximal femur using dual energy X-ray absorptiometry. BMD was significantly higher in the humerus (p < 0.01), femur (p < 0.05), and proximal femur (p < 0.05) in the high activity group. Furthermore, physical activity (h/week) was an independent predictor of humerus BMD (p < 0.01) and proximal femur BMD (p < 0.05), among all subjects investigated (n = 44). Isokinetic muscle strength of the quadriceps and hamstrings muscles was significantly higher in the high activity group (p < 0.05). In the reference group, there was a general strong independent relationship between BMD, muscle strength, and different body constitutional parameters. In the high activity group, muscle strength of the thigh independently predicted BMD of humerus and spine. Furthermore, in the same group, weight, BMI, and fat mass independently predicted only spine BMD. In conclusion, the higher BMD demonstrated in the ice hockey players seems to be site-specific and may well be associated with the type and magnitude of loading from predominantly ice hockey. High physical activity seems to weaken the relationship between BMD, muscle strength, and body constitution demonstrated in adolescent boys on a low or moderate level of physical activity.

Adolescent↗
PubMed1995

Bone mass, muscle strength, and different body constitutional parameters in adolescent boys with a low or moderate exercise level.

This study was conducted to evaluate the association between muscle strength of the thigh, different body constitutional parameters, and bone mineral density (BMD) in adolescents. The subjects were 26 healthy adolescent boys, age 15.9 +/- 0.3 years, not training for more than 3 h per week. BMD was measured in total body, head, humerus, spine, femur, and tibia/fibula. Univariate correlations were measured between the explanatory parameters height, weight, body mass index (BMI), fat mass, lean body mass, quadriceps strength, hamstrings strength, and each BMD site using Pearson's coefficient of correlation. The explanatory variables were also used in a multivariate analysis to explain each BMD site. There was a high degree of concordance when comparing the two methods of analysis. Using the multivariate analysis, quadriceps strength and lean body mass showed significant independent correlations to all BMD sites measured, the correlations being stronger for the adjacent femur and tibia/fibula than for the distant humerus and head. Hamstrings strength correlated significantly and independently with tibia/fibula BMD and spine BMD. Fat mass, BMI, and weight correlated significantly and independently to all BMD sites except femur. This study demonstrates a general relationship between BMD and different body constitutional parameters and muscle strength of the thigh.(ABSTRACT TRUNCATED AT 250 WORDS)

Absorptiometry, Photon↗