scholarly journals Condición física, composición corporal y rendimiento académico en niños/as con sobrepeso/obesidad

2020 ◽  
pp. 47-56
Author(s):  
M.A. Ortega Jiménez
Keyword(s):  
Academic Performance ◽  
Aerobic Capacity ◽  
Physical Condition ◽  
Academic Skills ◽  
Cross Sectional Study ◽  
Lower Body ◽  
Cross Sectional ◽  
Preadolescent Children ◽  
Body Strength ◽  
Lower Body Strength

Objetivos: Se ha sugerido que la condición física y el sobrepeso están relacionados con el rendimiento académico. Este estudio examinó la asociación entre indicadores de masa corporal, masa grasa y condición física sobre el rendimiento académico, en niños/as preadolescentes con sobrepeso/obesidad. Método: 19 niños/as preadolescentes con sobrepeso/obesidad. Estudio transversal en el que se evaluaron el IMC, IMG, la capacidad aeróbica (test de 20 m), VO2max mediante un test de laboratorio y estimado indirectamente a partir del test de 20 m, fuerza muscular, velocidad-agilidad y el rendimiento académico, a través de la Batería III Woodcock – MuñozTM. Resultados: el rendimiento académico total se relacionó con la capacidad aeróbica, el VO2max, la fuerza del tren inferior y la velocidad-agilidad. La capacidad aeróbica fue asociada con la lectura y destrezas académicas. La fuerza del tren inferior y la velocidad-agilidad con la lectura, las matemáticas y las destrezas académicas. La composición corporal no tuvo asociación. Objectives: It has been suggested that physical condition and being overweight are related to academic performance. This study examined the association between indicators of body mass, fat mass and physical condition on academic performance in overweight / obese preadolescent children. Method: 19 overweight / obese preadolescent children. Cross-sectional study in which BMI, IMG, aerobic capacity (20 m test), VO2max were evaluated through a laboratory test and indirectly estimated from the 20 m test, muscle strength, speed-agility and academic performance, through Woodcock III Battery – MuñozTM. Results: Total academic performance was related to aerobic capacity, VO2max, lower body strength and speed-agility. Aerobic capacity was associated with reading and academic skills. Lower body strength and speed-agility with reading, math, and academic skills. Body composition had no association.

Relationships between balance and physical fitness variables in firefighter recruits

Work ◽  
2021 ◽  
Vol 68 (3) ◽  
pp. 667-677
Author(s):  
Rudi A. Marciniak ◽  
Kyle T. Ebersole ◽  
David J. Cornell
Keyword(s):  
Aerobic Capacity ◽  
Dynamic Balance ◽  
Pearson Correlation ◽  
Fat Free Mass ◽  
Upper Body ◽  
Future Research ◽  
Lower Body ◽  
Body Strength ◽  
Balance Ability ◽  
Lower Body Strength

BACKGROUND: Research has suggested that balance ability contributes to musculoskeletal injury (MSKI) rates in firefighters. Though the Y-Balance Test (YBT) can predict injury, it is unclear what physical measures inform YBT performance in firefighters. Thus, there is a lack of knowledge regarding best practice for improving balance in firefighters. OBJECTIVE: To evaluate the relationship between the YBT and fitness measures, including body composition, aerobic capacity, functional total-body power, upper and lower-body strength, and movement efficiency, among firefighters. METHODS: Dynamic balance (YBT), body mass index (BMI), body-fat percentage (BF%), fat free mass (FFM), aerobic capacity (VO2max), stair climb (SC), upper (1RMbench) and lower-body (1RMsquat) strength, and Fusionetics™ Movement Efficiency Screen (ME) measures were collected among 35 firefighter recruits. Pearson correlation coefficients were used to examine relationships between YBT and the performance measures. RESULTS: Dynamic balance ability in firefighter recruits is significantly (p < 0.05) related to BMI, lower-body strength, and movement quality, but not with aerobic capacity, stair climb performance, and upper body strength. CONCLUSIONS: Greater YBT performance in firefighter recruits is associated with lower BMI, greater functional movement, and greater lower-body strength. Future research is warranted to incorporate these elements into balance training programs for firefighter recruits.

scholarly journals The anthropometric and physical qualities of women’s rugby league Super League and international players; identifying differences in playing position and standard

2021 ◽  
Author(s):  
Sean Scantlebury ◽  
Sam McCormack ◽  
Thomas Sawczuk ◽  
Stacey Emmonds ◽  
Neil Collins ◽  
...  
Keyword(s):  
Aerobic Capacity ◽  
Mixed Models ◽  
Rugby League ◽  
Evidence Base ◽  
Jump Height ◽  
Lower Body ◽  
Body Strength ◽  
Lower Body Strength ◽  
Lower Body Power ◽  
Super League

Participation in women's rugby league has been growing since the foundation of the English women's rugby league Super League in 2017. However, the evidence base to inform women's rugby league remains sparse. This study provides the largest quantification of anthropometric and physical qualities of women's rugby league players to date, identifying differences between positions (forwards & backs) and playing standard (Women's Super League [WSL] vs. International). The height, weight, body composition, lower body strength, jump height, speed and aerobic capacity of 207 players were quantified during the pre-season period. Linear mixed models and effects sizes were used to determine differences between positions and standards. Forwards were significantly (p < 0.05) heavier (forwards: 82.5 ± 14.8kg; backs: 67.7 ± 9.2kg) and have a greater body fat % (forwards: 37.7 ± 6.9%; backs: 30.4 ± 6.3%) than backs. Backs had significantly greater lower body power measured via jump height (forwards: 23.5 ± 4.4cm; backs: 27.6 ± 4.9cm), speed over 10m (forwards: 2.12 ± 0.14s; backs: 1.98 ± 0.11s), 20m (forwards: 3.71 ± 0.27s; backs: 3.46 ± 0.20s), 30m (forwards: 5.29 ± 0.41s; backs: 4.90 ± 0.33s), 40m (forwards: 6.91 ± 0.61s; backs: 6.33 ± 0.46s) and aerobic capacity (forwards: 453.4 ± 258.8m; backs: 665.0 ± 298.2m) than forwards. Additionally, international players were found to have greater anthropometric and physical qualities in comparison to their WSL counterparts. This study adds to the limited evidence base surrounding the anthropometric and physical qualities of elite women’s rugby league players. Comparative values for anthropometric and physical qualities are provided which practitioners may use to evaluate the strengths and weaknesses of players, informing training programs to prepare players for the demands of women's rugby league.

scholarly journals Capacidad aeróbica y rendimiento académico en escolares de educación primaria (Aerobic capacity and academic performance in primary schoolchildren)

Retos ◽  
2018 ◽  
pp. 351-354
Author(s):  
Andres Rosa Guillamón ◽  
Eliseo Garcia Canto ◽  
Pedro Jose Carrillo López
Keyword(s):  
Academic Performance ◽  
Aerobic Capacity ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Core Subjects ◽  
Primary Schoolchildren ◽  
Educación Primaria ◽  
The Relationship ◽  
Total P ◽  
Made In

El objetivo del estudio es analizar la relación entre capacidad aeróbica y rendimiento académico en una muestra de escolares de seis a nueve años. Es un estudio descriptivo de corte transversal compuesto por 185 escolares (6-9 años). La capacidad aeróbica se valoró mediante el test de Course-Navette. El rendimiento académico se calculó a través de la calificación obtenida por los escolares en la primera evaluación realizada en las asignaturas de: lengua, matemáticas, naturales, sociales, inglés y artística. Los resultados obtenidos muestran que los escolares con mayor capacidad aeróbica obtienen mejores puntuaciones en las asignaturas de lengua (p = .012), matemáticas (p = .011), naturales (p = .014), sociales (p = .015), inglés (.050), artística (p = .042), asignaturas troncales (p = .038), específicas (p = .007) y rendimiento académico total (p = .006). Por ello, la capacidad aeróbica parece ser un elemento diferenciador del rendimiento académico en escolares de seis a nueve años de edad. Abstract. The aim was to analyze the relationship between aerobic capacity and academic performance in a sample of schoolchildren from six to nine years. Is a descriptive cross-sectional study composed of 185 schoolchildren (6-9 years). Aerobic capacity was assessed using the Course-Navette test. The academic performance was calculated through the grade obtained by the students in the first evaluation made in the subjects of: language, mathematics, natural, social, English and artistic. Results show that the students with the highest aerobic capacity obtained better scores in the subjects of language (p = .012), mathematics (p = .011), natural (p = .014), social (p = .015), english (. 050), artistic (p = .042), core subjects (p = .038), special subjects (p = .007) and total academic performance (p = .006). So, Aerobic capacity seems to be a differentiator of academic performance in schoolchildren from six to nine years of age.

Active Older Adults Keep Aerobic Capacity and Experience Small Reductions in Body Strength During Confinement Due to COVID-19 Outbreak

2021 ◽  
pp. 1-8
Author(s):  
Lucimere Bohn ◽  
Duarte Barros ◽  
Flávia Borges-Machado ◽  
Susana Carrapatoso ◽  
Andreia N. Pizarro ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Physical Fitness ◽  
Aerobic Capacity ◽  
Short Version ◽  
Walk Test ◽  
Lower Body ◽  
Physically Active ◽  
Body Strength ◽  
Lower Body Strength

The objective of this study was to observe the home-confinement effects on physical fitness, physical activity (PA), and body composition in active older adults, and to compare physical fitness and PA according to quality of life (QoL) during confinement. A total of 72 physically active older adults (61.1% females; 74.24 ± 5.57 years) were assessed pre- and postconfinement for aerobic capacity (6-min walk test), lower (30-s sit-to-stand), and upper (30-s arm-curl) body strength, PA (short-version of the International Physical Activity Questionnaire), and QoL (EQ-5D-visual analogue scale). The pre- and postconfinement comparisons show declines in upper (−2.24 ± 0.45 repetitions; p < .001; η2 = .276) and lower body strength (−2.65 ± 0.42 repetitions; p < .001; η2 = .378) in both genders, but not in aerobic capacity. Ninety percentage of older adults perceived a decline in PA. Older adults reporting high QoL increased 19.27 ± 97.04 m in the 6-min walk test, while the participants with low QoL reduced 28.32 ± 63.27 m (p = .018; η2 = .090). Previously active older adults did not have their aerobic capacity decrease significantly despite a decline in upper and lower body strength during an 11-week home confinement period.

scholarly journals Relationships Between Measures of Functional and Isometric Lower Body Strength, Aerobic Capacity, Anaerobic Power, Sprint and Countermovement Jump Performance in Professional Soccer Players

2020 ◽  
Vol 75 (1) ◽  
pp. 161-175
Author(s):  
Michał Boraczyński ◽  
Tomasz Boraczyński ◽  
Robert Podstawski ◽  
Zbigniew Wójcik ◽  
Piotr Gronek
Keyword(s):  
Body Mass ◽  
Aerobic Capacity ◽  
Anaerobic Power ◽  
Knee Extensor ◽  
Soccer Players ◽  
Lower Body ◽  
Countermovement Jump ◽  
Body Strength ◽  
Wide Range ◽  
Lower Body Strength

Abstract The purpose of this study was to assess a wide range of physiological and performance variables and investigate whether and to what extent these variables are associated with each other in soccer. Twenty-five male soccer players (25.1 ± 4.56 years; body mass, 75.2 ± 5.92 kg; body height, 180.6 ± 5.45 cm) performed: 5- and 30-m sprints (T5m and T30m, respectively), 1-repetition-maximum (1RM) half squat, maximal voluntary isometric contraction (MVIC) of the knee extensors, countermovement jump (CMJ) to obtain vertical jump height (CMJheight) and power output (CMJpower), the 10-s Wingate Anaerobic Test (WAnT) to obtain peak power (Pmax), and the 20-m multi-stage shuttle run test (MST) to evaluate aerobic capacity. 1RM, MVIC, and Pmax were normalized to body mass. Large negative correlations were found between sprint times and 1RM half back squat/BM (r = -0.510 to -0.570, r2 = 0.260–0.325, both p < 0.01) and Pmax/BM (r = -0.501, r2 = 0.251, p < 0.01). T30m most strongly and negatively correlated with CMJheight (r = -0.744, r2 = 0.554, p < 0.001). WAnT-determined Pmax showed a very large correlation between absolute Pmax and knee-extensor MVIC (r = 0.827, r2 = 0.684, p < 0.001) and large correlations between absolute Pmax and 1RM half squat (r = 0.674, r2 = 0.454, p < 0.001) and CMJpower (r = 0.579, r2 = 0.335, p < 0.01). We also identified a large inverse relationship between CMJheight and T30m (r = -0.744, r2 = 0.554, p < 0.001) and large positive correlation between CMJheight and MVIC/BM (r = 0.702, p < 0.001). The results demonstrate that elite soccer players with greater lower body strength (quantified by the MVIC of the knee extensor and the 1RM half squat) show better sprint and CMJ performance, suggesting the incorporation of soccer-specific resistance training to develop lower body musculature and therefore maximize sprinting ability. The higher correlation coefficients found between T30m and the physiological and athletic measures compared with T5m promote the use of this sprint distance when assessing performance. The use of relative measures (normalized to body mass) is advisable when comparing strength variables with sprint and CMJ performance or anaerobic power. Considering the correlations of WAnT-determined Pmax versus CMJpower, coaches should administer tests that assess jumping and linear sprint performance rather than the cycling-specific WAnT.

Multiple Sclerosis: Treadmill Versus Cycle Ergometry Maximal Exercise Test Responses

2020 ◽  
Vol 9 (3) ◽  
pp. 113-117
Author(s):  
Garett Griffith ◽  
Badeia Saed ◽  
Tracy Baynard
Keyword(s):  
Multiple Sclerosis ◽  
Aerobic Capacity ◽  
Work Capacity ◽  
Cross Sectional Study ◽  
Cycle Ergometer ◽  
Cycle Ergometry ◽  
Cross Sectional ◽  
Complete Test ◽  
Peak Aerobic Capacity ◽  
Predicted Values

ABSTRACT Background: Multiple sclerosis (MS) is an autoimmune disease that impacts the central nervous system. MS generally results in decreased mobility and work capacity. Our objective was to determine exercise testing responses on both a treadmill and cycle ergometer among individuals with MS who were able to ambulate freely. Methods: Twenty-six individuals with MS participated in a cross-sectional study (44 ± 11 years; body mass index 26.8 ± 6.2 kg·m−2; expanded disability scale score 3.1 ± 0.9), with 24 individuals with complete test data for both treadmill and cycle ergometry tests. Peak aerobic capacity (VO2peak) for both treadmill and cycle ergometry tests were measured with indirect calorimetry. Results: Participants safely completed both treadmill and cycle ergometry tests, and treadmill testing yielded higher values (26.7 ± 6.4 mL·kg−1·min−1) compared with cycle ergometry (23.7 ± 5.7 mL·kg−1·min−1), with values ~12% greater for treadmill. When comparing tests to their respected predicted values within modality, treadmill tests were 8% lower and cycle ergometry tests were 10% lower than predicted. Conclusions: While peak aerobic capacity was very low for this population, treadmill tests were still higher than cycle ergometry data, with this difference between modes being similar to that observed in healthy adult populations. Additional research is required to determine if these findings are impacted by participation in physical activity or regular exercise.

scholarly journals A Preliminary Investigation: Evaluating the Effectiveness of an Occupational Specific Training Program to Improve Lower Body Strength and Speed for Law Enforcement Officers

2021 ◽  
Vol 18 (14) ◽  
pp. 7685
Author(s):  
Ian Bonder ◽  
Andrew Shim ◽  
Robert G. Lockie ◽  
Tara Ruppert
Keyword(s):  
Law Enforcement ◽  
Training Program ◽  
Injury Risk ◽  
Preliminary Investigation ◽  
Lower Body ◽  
Specific Training ◽  
Body Strength ◽  
Post Test ◽  
Lower Body Strength ◽  
Post Shift

Based on current law enforcement officer (LEO) duties, musculoskeletal injury risk is elevated due to the unpredictable nature of physically demanding tasks. The purpose of this 4-week study was to determine the effectiveness of a 15-min post-shift standardized occupational specific training program. The standardized program was designed to improve lower-body strength and speed to aid physically demanding task performance. Seven male LEOs completed the program after their 12-h shift. Subjects were required to use the department fitness center to perform the 15-min standardized program consisting of a dynamic warm-up, 4 sets of 3 repetitions on hex-bar deadlift and four 20-m sprints. Two minutes of rest was required between each set of 3 repetitions on hex-bar deadlift and 1 min of rest between each 20-m sprint. A dependent T-test was used between pre-test and post-test scores for hex-bar deadlift (HBD) and sprint. Data revealed significant improvements in relative lower-body strength with HBD (p ≤ 0.001). However, insignificant results were demonstrated with the 20-m sprint (p ≤ 0.262). In conclusion, a 15-min post-shift workout can improve lower-body strength as measured by the hex-bar deadlift. However, data indicated running speed may require a different training approach to improve the 20-m sprint.

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