Birth weight and breastfeeding are differentially associated with physical fitness components

Author(s):  
Laurent Béghin ◽  
Jérémy Vanhelst ◽  
Elodie Drumez ◽  
Mathilde Kersting ◽  
Denes Molnar ◽  
...  
2017 ◽  
Vol 122 (s1) ◽  
pp. S49-S58 ◽  
Author(s):  
Francisco B. Ortega ◽  
Daniel Campos ◽  
Cristina Cadenas-Sanchez ◽  
Signe Altmäe ◽  
Cristina Martínez-Zaldívar ◽  
...  

AbstractA few studies have recently reported that higher cardiorespiratory fitness is associated with higher volumes of subcortical brain structures in children. It is, however, unknown how different fitness measures relate to shapes of subcortical brain nuclei. We aimed to examine the association of the main health-related physical fitness components with shapes of subcortical brain structures in a sample of forty-four Spanish children aged 9·7 (sd 0·2) years from the NUtraceuticals for a HEALthier life project. Cardiorespiratory fitness, muscular strength and speed agility were assessed using valid and reliable tests (ALPHA-fitness test battery). Shape of the subcortical brain structures was assessed by MRI, and its relationship with fitness was examined after controlling for a set of potential confounders using a partial correlation permutation approach. Our results showed that all physical fitness components studied were significantly related to the shapes of subcortical brain nuclei. These associations were both positive and negative, indicating that a higher level of fitness in childhood is related to both expansions and contractions in certain regions of the accumbens, amygdala, caudate, hippocampus, pallidum, putamen and thalamus. Cardiorespiratory fitness was mainly associated with expansions, whereas handgrip was mostly associated with contractions in the structures studied. Future randomised-controlled trials will confirm or contrast our findings, demonstrating whether changes in fitness modify the shapes of brain structures and the extent to which those changes influence cognitive function.


Author(s):  
Bokun Kim ◽  
Minjae Ku ◽  
Tanaka Kiyoji ◽  
Tomonori Isobe ◽  
Takeji Sakae ◽  
...  

Abstract Background Maintaining a good level of physical fitness from engaging in regular exercise is important for the treatment and prevention of metabolic syndrome (MetS). However, which components constitutive of physical fitness confer the greatest influence remains controversial. This retrospective cross-sectional study aimed to investigate the association between MetS and physical fitness components including cardiorespiratory fitness, muscle strength, flexibility, and agility and to identify which physical fitness components have the largest influence on MetS. Methods A total of 168 Japanese adult males aged 25–64 years were allocated into non-MetS, pre-MetS, and MetS groups according to the criteria recommended by the Japanese Society of Internal Medicine. Anthropometric measurement of body composition by whole-body dual-energy X-ray absorptiometry and measures related to MetS, including waist circumference, triglyceride level, high-density lipoprotein cholesterol level, blood pressure, glucose level, and physical fitness components, were assessed. For evaluation of cardiorespiratory fitness, muscle strength, flexibility, agility, and balance, maximal oxygen consumption (VO2peak) and oxygen uptake at anaerobic threshold (VO2AnT), handgrip strength and vertical jumping, trunk extension and flexion, stepping side to side, and single-leg balance task with the eyes closed were assessed, respectively. Results A progressive tendency of increasing body weight, body mass index, whole-body lean and fat mass, percentage of whole-body fat mass, trunk lean and fat mass, percentage of trunk fat mass, arm fat mass, waist circumference, triglyceride level, systolic and diastolic blood pressure, and blood glucose level from the non-MetS group to the MetS group was significant (P < 0.05). Conversely, the cardiorespiratory endurance parameters VO2peak and VO2AnT and the high-density lipoprotein cholesterol level showed a progressively decreasing tendency across the groups (P < 0.01). In addition, a VO2peak below 29.84 ml·kg·min−1 (P = 0.028) and VO2AnT below 15.89 ml·kg·min−1 (P = 0.011) were significant risk components for pre-MetS and MetS. However, there was no significant tendency with respect to muscle strength, agility, and flexibility. Conclusion Cardiorespiratory fitness is strongly linked to metabolic syndrome among physical fitness components


2017 ◽  
Vol 49 (5S) ◽  
pp. 514
Author(s):  
Irene Esteban-Cornejo ◽  
Cristina Cadenas-Sánchez ◽  
Oren Contreras-Rodriguez ◽  
Juan Verdejo-Roman ◽  
Jose Mora-González ◽  
...  

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