Height‐adjusted lean body mass and its associations with physical activity and kidney function in pediatric kidney transplantation

Background and objectives: Peritoneal dialysis (PD) patients are expected to present lower levels of physical activity, unhealthy changes at the body composition level, and low levels of strength. Firstly, this study aimed to report the sex differences in physical activity, body composition and muscle strength and the relations among these variables. Secondly, we analyze the relationship between physical activity and biochemical parameters. Materials and Methods: Thirty-four patients (13 women and 21 men) participated in this study. Body composition was assessed by bioimpedance and dual-energy X-ray absorptiometry (DXA), and maximum isokinetic unilateral strength, analytical parameters and physical activity levels were evaluated. Results: The men showed higher values for weight, height, lean body mass, bone mineral content, bone mineral density (BMD) and total body water, while women showed higher values for the percentage of fat mass and hydration of lean body mass (p < 0.05). No differences between the sexes were found in different levels of physical activity; however, males registered significantly higher values for isokinetic strength variables except for knee extensor strength. BMD was positively related to sedentary activity and negatively related to moderate and vigorous activity (r = 0.383 and r = −0.404, respectively). Light physical activity was negatively correlated with albumin (r = −0.393) and total protein (r = −0.410) levels, while moderate/vigorous activity was positively correlated with urea distribution volume (r = 0.446) and creatinine clearance (r = 0.359) and negatively correlated with the triglyceride level (r = −0.455). Conclusions: PD patients with higher levels of physical activity present better results in terms of body composition and biochemical parameters. Additional studies should be conducted to clarify the relation between physical activity level and BMD.

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The relationship between pedometer-determined physical activity, body mass index and lean body mass index in children

International Journal of Pediatric Obesity ◽

10.3109/17477160903568421 ◽

2010 ◽

Vol 5 (5) ◽

pp. 445-450 ◽

Cited By ~ 16

Author(s):

Michael J. Duncan ◽

Alan Nevill ◽

Lorayne Woodfield ◽

Yahya Al-Nakeeb

Keyword(s):

Physical Activity ◽

Body Mass Index ◽

Lean Body Mass ◽

Body Mass ◽

The Relationship

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Adiposity measures, lean body mass, physical activity and mortality: NHANES 1999–2004

BMC Nephrology ◽

10.1186/1471-2369-15-108 ◽

2014 ◽

Vol 15 (1) ◽

Cited By ~ 28

Author(s):

Sankar D Navaneethan ◽

John P Kirwan ◽

Susana Arrigain ◽

Jesse D Schold

Keyword(s):

Physical Activity ◽

Lean Body Mass ◽

Body Mass

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Phytase supplementation increases bone mineral density, lean body mass and voluntary physical activity in rats fed a low-zinc diet☆

The Journal of Nutritional Biochemistry ◽

10.1016/j.jnutbio.2009.03.015 ◽

2010 ◽

Vol 21 (7) ◽

pp. 653-658 ◽

Cited By ~ 7

Author(s):

Angus G. Scrimgeour ◽

Louis J. Marchitelli ◽

Jered S. Whicker ◽

Yang Song ◽

Emily Ho ◽

...

Keyword(s):

Physical Activity ◽

Bone Mineral Density ◽

Lean Body Mass ◽

Body Mass ◽

Bone Mineral ◽

Mineral Density ◽

Voluntary Physical Activity

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The changes in proportion and body composition of a woman practicing group fitness training for three months.

HIGHER SCHOOL’S PULSE ◽

10.5604/01.3001.0014.0926 ◽

2020 ◽

Vol 13 (4) ◽

pp. 1-7

Author(s):

Agata Mroczek ◽

Magdalena Chawałek

Keyword(s):

Physical Activity ◽

Body Composition ◽

Lean Body Mass ◽

Body Mass ◽

Body Fat ◽

The Body ◽

Composition Analysis ◽

Training Cycle ◽

Group Fitness ◽

Fitness Training

Background: Physical activity is an excellent form of prevention of modern diseases. The most popular form of physical activity chosen by women is group fitness activities. Women are most likely to focus on exercises for the lower parts of the body (thighs, buttocks, abdomen). In recent years, dance classes (e.g. Zumba) or exercises on mini trampolines have become very popular. Regular fitness training contributes to positive changes in the proportions and body composition. Aim of the study: The aim of the study was to assess the proportions and body composition of a woman via a 3-month group fitness training program. Case report: The study involved a woman aged 26, participating in fitness classes three times a week for a period of three months. The woman participated in the following training cycle: twice a week (Monday and Wednesday) in the Jumping Frog interval training on a trampoline; twice a week (Monday and Friday) in ZUMBA® classes; and once a week (Wednesday) in ABT classes (abdomen, buttocks, thighs). Her height and weight, waist and hips circumference, and the thickness of three skinfolds (subscapular, triceps, abdominal) were measured. Body mass index (BMI) and waist to hip ratio (WHR) were calculated and body composition analysis (% of body fat, lean body mass) was performed. Two measurements were made: the first at the beginning of the training cycle, the second on completion. After three months of training, there were a decrease in body weight (2.2 kg), BMI (0.77 kg/m2), waist circumference (4 cm), hip circumference (2 cm), WHR (0.03), subscapular, abdominal and triceps skinfold (1 mm, 3 mm, 3 mm), body fat (2.6%) and perimeters, and an increase in lean body mass (1 kg). Conclusions: This study shows a positive effect of fitness training on body proportions and body composition.

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Role of Menopausal Transition and Physical Activity in Loss of Lean and Muscle Mass: A Follow-Up Study in Middle-Aged Finnish Women

Journal of Clinical Medicine ◽

10.3390/jcm9051588 ◽

2020 ◽

Vol 9 (5) ◽

pp. 1588

Author(s):

Hanna-Kaarina Juppi ◽

Sarianna Sipilä ◽

Neil J. Cronin ◽

Sira Karvinen ◽

Jari E. Karppinen ◽

...

Keyword(s):

Physical Activity ◽

Lean Body Mass ◽

Muscle Mass ◽

Body Mass ◽

Muscle Fiber ◽

Lean Mass ◽

Menopausal Transition ◽

Thigh Muscle ◽

Appendicular Lean Mass ◽

Early Postmenopause

In midlife, women experience hormonal changes due to menopausal transition. A decrease especially in estradiol has been hypothesized to cause loss of muscle mass. This study investigated the effect of menopausal transition on changes in lean and muscle mass, from the total body to the muscle fiber level, among 47–55-year-old women. Data were used from the Estrogenic Regulation of Muscle Apoptosis (ERMA) study, where 234 women were followed from perimenopause to early postmenopause. Hormone levels (estradiol and follicle stimulating hormone), total and regional body composition (dual-energy X-ray absorptiometry (DXA) and computed tomography (CT) scans), physical activity level (self-reported and accelerometer-measured) and muscle fiber properties (muscle biopsy) were assessed at baseline and at early postmenopause. Significant decreases were seen in lean body mass (LBM), lean body mass index (LBMI), appendicular lean mass (ALM), appendicular lean mass index (ALMI), leg lean mass and thigh muscle cross-sectional area (CSA). Menopausal status was a significant predictor for all tested muscle mass variables, while physical activity was an additional significant contributor for LBM, ALM, ALMI, leg lean mass and relative muscle CSA. Menopausal transition was associated with loss of muscle mass at multiple anatomical levels, while physical activity was beneficial for the maintenance of skeletal muscle mass.

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