scholarly journals Factors affecting running performance in 6–12-year-olds: The Health Oriented Pedagogical Project (HOPP)

2018 ◽  
Vol 46 (21_suppl) ◽  
pp. 61-67
Author(s):  
Per Morten Fredriksen ◽  
Asgeir Mamen ◽  
Heidi Gammelsrud ◽  
Morten Lindberg ◽  
Ole Petter Hjelle
Keyword(s):  
Muscle Mass ◽  
Body Fat ◽  
Parental Education ◽  
Education Level ◽  
Body Fat Percentage ◽  
Fatty Tissue ◽  
Fat Percentage ◽  
Running Performance ◽  
Parental Education Level ◽  
Factors Affecting

Aims: The purpose of this study was to examine factors affecting running performance in children. Method: A cross-sectional study exploring the relationships between height, weight, waist circumference, muscle mass, body fat percentage, relevant biomarkers, and the Andersen intermittent running test in 2272 children aged 6 to 12 years. Parental education level was used as a non-physiological explanatory variable. Results: Mean values (SD) and percentiles are presented as reference values. Height (β = 6.4, p < .0001), high values of haemoglobin (β = 18, p = .013) and low percentage of body fat (β = –7.5, p < .0001) showed an association with results from the running test. In addition, high parental education level showed a positive association with the running test. Conclusion: Boys display better running performance than girls at all age ages, except 7 years old, probably because of additional muscle mass and less fatty tissue. Height and increased level of haemoglobin positively affected running performance. Lower body fat percentage and high parental education level correlated with better running performance.

scholarly journals Sedentary Time, Physical Activity, and Sleep Duration: Associations with Body Composition in Fibromyalgia. The Al-Andalus Project

2019 ◽  
Vol 8 (8) ◽  
pp. 1260 ◽  
Author(s):  
Blanca Gavilán-Carrera ◽  
Pedro Acosta-Manzano ◽  
Alberto Soriano-Maldonado ◽  
Milkana Borges-Cosic ◽  
Virginia A. Aparicio ◽  
...  
Keyword(s):  
Physical Activity ◽  
Waist Circumference ◽  
Physical Fitness ◽  
Muscle Mass ◽  
Sleep Duration ◽  
Body Fat ◽  
Regression Models ◽  
Sedentary Time ◽  
Body Fat Percentage ◽  
Fat Percentage

To explore the individual–independent relationships of sedentary time (ST) and physical activity (PA) (light and moderate-to-vigorous intensity (MVPA)), with sleep duration and body composition (waist circumference, body mass index (BMI), body fat percentage, and muscle mass index) in women with fibromyalgia, and to determine whether these associations are independent of physical fitness. This cross-sectional study involved 385 women with fibromyalgia. ST and PA were assessed by triaxial accelerometry, sleep duration was self-reported. Waist circumference was measured using an anthropometric tape, and body weight, body fat percentage, and muscle mass were estimated using a bio-impedance analyzer. In individual regression models, ST and sleep were directly associated with waist circumference, BMI, and body fat percentage (β between 0.10 and 0.25; all p < 0.05). Light PA and MVPA were inversely associated with waist circumference, BMI, and body fat percentage (β between −0.23 and −0.12; all p < 0.05). In multiple linear regression models, ST (β between 0.17 and 0.23), light PA (β between −0.16 and −0.21), and sleep duration (β between 0.11 and 0.14) were independently associated with waist circumference, BMI, and body fat percentage (all p < 0.05). MVPA was associated with waist circumference independent of light physical activity (LPA) and sleep duration (β = −0.11; p < 0.05). Except for MVPA, these associations were independent of physical fitness. These results suggest that longer ST and sleep duration, and lower PA levels (especially light intensity PA), are independently associated with greater adiposity, but not muscle mass, in women with fibromyalgia. These associations are, overall, independent of physical fitness.

scholarly journals Body composition associations with muscle strength in older adults living in Auckland, New Zealand

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0250439
Author(s):  
Anne N. Hiol ◽  
Pamela R. von Hurst ◽  
Cathryn A. Conlon ◽  
Owen Mugridge ◽  
Kathryn L. Beck
Keyword(s):  
Older Adults ◽  
Body Composition ◽  
Muscle Strength ◽  
Grip Strength ◽  
Muscle Mass ◽  
Body Fat ◽  
Muscle Quality ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Cross Sectional

Background Aging is associated with decreases in muscle strength and simultaneous changes in body composition, including decreases in muscle mass, muscle quality and increases in adiposity. Methods Adults (n = 369; 236 females) aged 65–74 years living independently were recruited from the cross-sectional Researching Eating Activity and Cognitive Health (REACH) study. Body fat percentage and appendicular skeletal muscle mass (ASM) (sum of lean mass in the arms and legs) were assessed using Dual-energy X-ray Absorptiometry (Hologic, QDR Discovery A). The ASM index was calculated by ASM (kilograms) divided by height (meters) squared. Isometric grip strength was measured using a hand grip strength dynamometer (JAMAR HAND). Results Linear regression analyses revealed that muscle strength was positively associated with the ASM index (R2 = 0.431, p < 0.001). When exploring associations between muscle strength and muscle mass according to obesity classifications (obesity ≥30% males; ≥40% females), muscle mass was a significant predictor of muscle strength in non-obese participants. However, in participants with obesity, muscle mass was no longer a significant predictor of muscle strength. Conclusions Body fat percentage should be considered when measuring associations between muscle mass and muscle strength in older adults.

scholarly journals Impact of body composition on physical fitness components in the Mexican Navy: is overweight an issue?

2020 ◽  
Author(s):  
Laura Sànchez-Chapul ◽  
Jesús Fernando Valencia-León ◽  
Mario Acevedo-Mora ◽  
Zendy F Fuentes-Corona ◽  
Erika Estrada-Camarena ◽  
...  
Keyword(s):  
Body Composition ◽  
Physical Fitness ◽  
Muscle Mass ◽  
Cardiorespiratory Fitness ◽  
Body Fat ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Fitness Components ◽  
Mass Percentage ◽  
High Body

Abstract Background. Appropriate physical fitness components and body composition are required to overcome dangerous situations during sea rescues and in the first line of combat in the Mexican Navy. Aim of the study. To analyze the impact of body composition on physical fitness components such as cardiorespiratarory fitness and muscle strength-resistance of marines, rescue swimmers, and divers of the Mexican Navy classified as overweight. Methods. BC was assessed by two BMI cutoff points (WHO and military)­; body fat percentage and muscle mass percentage, and waist circumference were determined by anthropometry. Cardiorespiratory fitness was assessed by the Course-Navette test and MSR by a 1-minute maximal effort of push-ups, sit-ups, and bench presses. Results. We found significant differences in medians of physical fitness components and body composition among groups (p < 0.001). The WHO and military BMI showed 59 (54%) and 16 (15%) individuals as overweight, respectively. Marine instructors showed the highest percentage of men to be overweight, 24 (41%) (WHO) at the expense of good muscle mass percentage but high body fat percentage according to age. All groups showed cardiorespiratory fitness adequate for their age, but only 26 (51%) and 14 (24%) classified as normal and overweight (WHO), respectively, had good cardiorespiratory fitness (p = 0.003). Conclusions. Personnel classified as overweight had good body composition at the expense of high body fat percentage but adequate muscle mass, which could be adequate for their operational tasks; but their cardiorespiratory fitness, although good for their age, is still below the ideal value for military physical activity.

scholarly journals The Relationship between “Shofuku-Fujin” (Abnormality of Abdominal Examination in Japanese Kampo Medicine) and Body Composition by Bioelectrical Impedance Analysis: A Cross-Sectional Study

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Tatsuya Ishige ◽  
Hiroshi Odaguchi ◽  
Toshihiko Hanawa
Keyword(s):  
Muscle Mass ◽  
Body Fat ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Cross Sectional Study ◽  
Body Fat Percentage ◽  
Lower Body ◽  
Sectional Study ◽  
Fat Percentage ◽  
Cross Sectional

Shofuku-fujin is an abnormal physical finding in Kampo medical practice. It is assumed to be often found in the elderly and contributes to the selection of Kampo formulas used mainly in elderly patients. However, few objective reports about Shofuku-fujin have been published to date. The aim of this study was to clarify the clinical features of patients showing Shofuku-fujin by using bioelectrical impedance analysis (BIA) and to objectively assess the potential clinical implications of these findings. We conducted a cross-sectional study of 1330 patients who visited our institute to undergo a medical examination by using data collected from September 2010 to March 2016. We extracted data on patient sex and age, anthropometric data, and body composition data that could potentially affect the appearance of Shofuku-fujin. Logistic regression analyses were performed by sex to analyze the various factors related to the appearance of Shofuku-fujin. Of the 1330 patients, the data of 386 men and 942 women were used for analysis. Multivariate logistic regression analysis showed that Shofuku-fujin was associated with older age (odds ratio (OR), 1.07; 95% confidence interval (CI), 1.05–1.10; p  < 0.001), lower skeletal muscle mass index (SMI) (OR, 0.60; 95% CI, 0.43–0.85; p  = 0.004), and lower body fat percentage (OR, 0.89; 95% CI, 0.85–0.93; p  < 0.001) in men and older age (OR, 1.06; 95% CI, 1.04–1.07, p  < 0.001) and lower body fat percentage (OR, 0.94; 95% CI, 0.92–0.96; p  < 0.001) in women. On the basis of these results, the factors causing the appearance of Shofuku-fujin were aging, decreased muscle mass, and decreased body fat in men and aging and decreased body fat in women. Our results demonstrated that it may be better to consider a loss of muscle mass when examining a male patient with Shofuku-fujin.

Dietary intake habits and controlled training on body composition and strength in elite female volleyball players during the season

2015 ◽  
Vol 40 (8) ◽  
pp. 827-834 ◽  
Author(s):  
Juan Mielgo-Ayuso ◽  
Michael C. Zourdos ◽  
Julio Calleja-González ◽  
Aritz Urdampilleta ◽  
Sergej M. Ostojic
Keyword(s):  
Body Composition ◽  
Dietary Intake ◽  
Muscle Mass ◽  
Body Fat ◽  
High Intensity ◽  
Bench Press ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Back Squat ◽  
Power Clean

The purpose of this study was to assess dietary intake of elite female volleyball players (EFVPs, n = 22) during the first 11 weeks of the competitive season. Further, we compared findings for total energy intake and specific macronutrient distribution with the established recommendations for high-intensity athletes. Subjects also engaged in periodized training and we assessed changes in body composition (BC) and strength. Twenty-two EFVPs had dietary intake (7-day dietary recall and food-frequency questionnaire), BC (body mass index (BMI), body fat percentage, fat mass, muscle mass), and 1-repetition maximum (1RM) strength (bench press, military press, back squat, power clean, clean and jerk, pull-over) assessed at baseline (T0, before preseason) and 11 weeks later (T11). Athletes consumed less total kilocalories and carbohydrates (CHO) compared with established recommendations (total kilocalories: 40.7 ± 5.2 kcal/(kg·day)–1 vs. recommendations: 50–80 kcal/(kg·day)–1; CHO: 4.3 ± 0.6 g/(kg·day)–1 vs. recommendations: 5–8 g/(kg·day)–1). Further, subjects consumed greater protein (2.1 ± 0.4 g/(kg·day)–1) compared with recommendations (1.6–1.8 g/(kg·day)–1) and greater fat (36.1 ± 4.6% of total kilocalories) than recommendations (20%–35% of total kilocalories). There were improvements (p < 0.05) in BC from T0–T11 (body fat percentage: 17.9% ± 4.2%–16.8% ± 3.6%, –4.7% ± 7.4%; fat mass: 12.7 ± 4.2–11.9 ± 3.8 kg, –4.0% ± 9.2%; muscle mass: 42.8% ± 3.4%–43.3% ± 3.0%, +1.3 ± 3.1%) and 1RM strength (bench press: 39.1 ± 4.5–43.4 ± 4.9 kg; +11.4% ± 9.3%; clean and jerk: 29.7 ± 6.3–34 ± 5.8 kg; +17.7% ± 23.8%); however, there was no change (p > 0.05) in BMI or military press and pull-over. Back squat (p = 0.054; +33.0% ± 83.7%) and power clean (p = 0.056; +26.2% ± 49.0%) increases approached significance. Our findings indicate that EFVPs improved BC and strength despite a dietary intake different from recommendations. This is possibly due to different substrate utilization during exercise in females versus males, thus new recommendations should be considered for high-intensity athletes, which are sex-specific.

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