scholarly journals No effect of increasing protein intake during military exercise with severe energy deficit on body composition and performance

2020 ◽  
Vol 30 (5) ◽  
pp. 865-877 ◽  
Author(s):  
Sjur Johansen Øfsteng ◽  
Ina Garthe ◽  
Øyvind Jøsok ◽  
Silje Knox ◽  
Kirsi Helkala ◽  
...  
Keyword(s):  
Body Composition ◽  
Protein Intake ◽  
Energy Deficit ◽  
And Performance ◽  
Military Exercise

Body Composition and Performance Capabilities Based on Protein Intake in Collegiate Dancers: A Pilot Study

2017 ◽  
Vol 5 (4) ◽  
Author(s):  
Ann Frost Brown ◽  
Christopher William Bach ◽  
Giuliana De Almeida ◽  
Shawn Leonard ◽  
Tom Welsh ◽  
...  
Keyword(s):  
Body Composition ◽  
Pilot Study ◽  
Protein Intake ◽  
And Performance

Higher-protein intake improves body composition index in female collegiate dancers

2020 ◽  
Vol 45 (5) ◽  
pp. 547-554 ◽  
Author(s):  
Ann F. Brown ◽  
Tom Welsh ◽  
Lynn B. Panton ◽  
Robert J. Moffatt ◽  
Michael J. Ormsbee
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Soft Tissue ◽  
Fat Mass ◽  
Protein Intake ◽  
Resting Metabolic Rate ◽  
Protein Supplementation ◽  
Post Intervention ◽  
And Performance ◽  
Over Time

Aesthetic athletes strive to attain an ideal body image and the physical demands placed on dancers make their body composition and fitness equally as important as their technique. Body composition has shown positive changes in response to increased protein intake and may improve aesthetics of dance performance. The purpose of this study was to determine the extent to which supplemental whey protein (PRO) would improve body composition in female collegiate dancers compared with an isocaloric placebo (PLA). Twenty-one (age, 19.6 ± 1.4 years) female collegiate dancers were randomly assigned to consume PRO or PLA (25 g, 3×/day) for 12 weeks. Laboratory testing at weeks 0, 6, and 12 included 24-h urine collection, body composition (dual-energy X-ray absorptiometry), resting metabolic rate, and performance. Data were reported as means ± SD. Significance was accepted at p < 0.05. Body weight, fat mass, and lean soft tissue did not change between groups or over time. Body composition index (BCI = [(LSTpost − LSTpre) + (FMpre − FMpost)]; where LST is lean soft tissue, FM is fat mass, pre is pre-intervention, and post is post-intervention) significantly improved over time in PRO (+0.6 ± 1.9) but not PLA (−1.8 ± 3.1; p = 0.048); however, neither group demonstrated changes in laboratory performance tests. Protein supplementation for 12 weeks significantly improved BCI and provided a simple way to improve the diet in female collegiate dancers. Novelty Twelve weeks of protein supplementation does not change body weight in female collegiate dancers. BCI improves following protein supplementation in female collegiate dancers.

Body Composition and Performance Capabilities Based on Level of Protein Intake in Collegiate Female Dancers

2017 ◽  
Vol 49 (5S) ◽  
pp. 102-103
Author(s):  
Katelyn R. Peterson ◽  
Ann F. Brown ◽  
Christopher W. Bach ◽  
Guiliana De Amelidea ◽  
Shawn M. Leonard ◽  
...  
Keyword(s):  
Body Composition ◽  
Protein Intake ◽  
And Performance

scholarly journals Different Amounts Of Protein Intake Influence Body Composition And Performance In Elite Cyclists

2019 ◽  
Vol 51 (Supplement) ◽  
pp. 544
Author(s):  
Antonio Paoli ◽  
Tatiana Moro ◽  
Giuseppe Marcolin ◽  
Paulo Gentil ◽  
Antonino Bianco
Keyword(s):  
Body Composition ◽  
Protein Intake ◽  
And Performance ◽  
Elite Cyclists

scholarly journals Sleep and Performance during a Preseason in Elite Rugby Union Athletes

2021 ◽  
Vol 18 (9) ◽  
pp. 4612
Author(s):  
Angus R. Teece ◽  
Christos K. Argus ◽  
Nicholas Gill ◽  
Martyn Beaven ◽  
Ian C. Dunican ◽  
...  
Keyword(s):  
Body Composition ◽  
Sleep Duration ◽  
Aerobic Capacity ◽  
Rugby Union ◽  
Significant Group ◽  
Sleep Quantity ◽  
Time Interaction ◽  
Wrist Actigraphy ◽  
And Performance ◽  
H 30

Background: Preseason training optimises adaptations in the physical qualities required in rugby union athletes. Sleep can be compromised during periods of intensified training. Therefore, we investigated the relationship between sleep quantity and changes in physical performance over a preseason phase in professional rugby union athletes. Methods: Twenty-nine professional rugby union athletes (Mean ± SD, age: 23 ± 3 years) had their sleep duration monitored for 3 weeks using wrist actigraphy. Strength and speed were assessed at baseline and at week 3. Aerobic capacity and body composition were assessed at baseline, at week 3 and at week 5. Participants were stratified into 2 groups for analysis: <7 h 30 min sleep per night (LOW, n = 15) and >7 h 30 min sleep per night (HIGH, n = 14). Results: A significant group x time interaction was determined for aerobic capacity (p = 0.02, d = 1.25) at week 3 and for skinfolds at week 3 (p < 0.01, d = 0.58) and at week 5 (p = 0.02, d = 0.92), in favour of the HIGH sleep group. No differences were evident between groups for strength or speed measures (p ≥ 0.05). Conclusion: This study highlights that longer sleep duration during the preseason may assist in enhancing physical qualities including aerobic capacity and body composition in elite rugby union athletes.

scholarly journals Relationship of Limb Lengths and Body Composition to Lifting in Weightlifting

2021 ◽  
Vol 18 (2) ◽  
pp. 756
Author(s):  
Dafnis Vidal Pérez ◽  
José Miguel Martínez-Sanz ◽  
Alberto Ferriz-Valero ◽  
Violeta Gómez-Vicente ◽  
Eva Ausó
Keyword(s):  
Body Composition ◽  
Skill Acquisition ◽  
Performance Indicator ◽  
Relative Length ◽  
Maximal Velocity ◽  
Anthropometric Measures ◽  
Positive Correlation ◽  
Level I ◽  
And Performance ◽  
Relationship Of

Weightlifting is a discipline where technique and anthropometric characteristics are essential to achieve the best results in competitions. This study aims to analyse the relationships between body composition, limb length and barbell kinematics in the performance of weightlifters. It consists of an observational and descriptive study of 19 athletes (12 men [28.50 ± 6.37 years old; 84.58 ± 14.11 kg; 176.18 ± 6.85 cm] and 7 women [27.71 ± 6.34 years old; 64.41 ± 7.63 kg; 166.94 ± 4.11 cm]) who met the inclusion criteria. A level I anthropometrist took anthropometric measures according to the methodology of the International Society for the Advancement of Kinanthropometry (ISAK), and the measurement of the barbell velocity was made with the software Kinovea. In terms of body composition, both genders are within the percentage range of fat mass recommended for this sport. In female weightlifters, there is a positive correlation between foot length, maximal velocity in the Snatch (ρ = 0.775, p = 0.041), and performance indicator in the Snatch and the Clean & Jerk (ρ = 0.964, p < 0.001; ρ = 0.883, p = 0.008, respectively). In male weightlifters, a positive correlation between tibial length and average velocity of the barbell in the Snatch is observed (ρ = 0.848, p < 0.001). Muscle mass percentage correlates positively with performance indicator in both techniques (ρ = 0.634, p = 0.027; ρ = 0.720, p = 0.008). Also, the relative length of the upper limb is negatively correlated with the performance indicator (ρ = −0.602, p = 0.038). Anthropometry and body composition may facilitate skill acquisition among this sport population, contributing to increase the limited body of scientific knowledge related to weightlifting.

Energy Intakes of Ultraendurance Cyclists During Competition, an Observational Study

2012 ◽  
Vol 22 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Katherine E. Black ◽  
Paula M.L. Skidmore ◽  
Rachel C. Brown
Keyword(s):  
Observational Study ◽  
Energy Intake ◽  
Energy Requirement ◽  
Negative Relationship ◽  
Computer Software ◽  
High Energy ◽  
Energy Deficit ◽  
Food Diary ◽  
Food And Drink ◽  
And Performance

Endurance events >10 hr are becoming increasingly popular but provide numerous physiological challenges, several of which can be attenuated with optimal nutritional intakes. Previous studies in ultraendurance races have reported large energy deficits during events. The authors therefore aimed to assess nutritional intakes in relation to performance among ultraendurance cyclists. This observational study included 18 cyclists in a 384-km cycle race. At race registration each cyclist’s support crew was provided with a food diary for their cyclist. On completion of the race, cyclists were asked to recall their race food and drink intakes. All food and fluids were analyzed using a computer software package. Mean (SD) time to complete the race was 16 hr 21 min (2 hr 2 min). Mean (SD) energy intake was 18.7 (8.6) MJ, compared with an estimated energy requirement for the race of 25.5 (7.4) MJ. There was a significant negative relationship between energy intake and time taken to complete the race (p = .023, r2 = −.283). Mean (SD) carbohydrate, fat, and protein intakes were 52 (27), 15.84 (56.43), and 2.94 (7.25) g/hr, respectively. Only carbohydrate (p = .015, r2 = −.563) and fat intake (p = .037, r2 = −.494) were associated with time taken to complete the race. This study demonstrates the difficulties in meeting the high energy demands of ultraendurance cycling. The relationship between energy intake and performance suggests that reducing the energy deficit may be advantageous. Given the high carbohydrate intakes of these athletes, increasing energy intake from fat should be investigated as a means of decreasing energy deficits.

scholarly journals Mediterranean Diet Adherence, Body Composition and Performance in Beach Handball Players: A Cross Sectional Study

2021 ◽  
Vol 18 (6) ◽  
pp. 2837
Author(s):  
Alejandro Martínez-Rodríguez ◽  
María Martínez-Olcina ◽  
María Hernández-García ◽  
Jacobo Á. Rubio-Arias ◽  
Javier Sánchez-Sánchez ◽  
...  
Keyword(s):  
Body Composition ◽  
Mediterranean Diet ◽  
Lean Body Mass ◽  
Body Mass ◽  
Eating Habits ◽  
Individual Performance ◽  
Dominant Hand ◽  
Diet Adherence ◽  
Mediterranean Diet Adherence ◽  
And Performance

Background: Beach handball (BH) is a sport in which sporting performance is influenced, together with team interaction, by individual performance in terms of strength. Body composition is one of the main factors for sports performance and eating habits can condition this variable. The Mediterranean diet (MD) can significantly reduce the risk of mortality or cardiovascular disease. In addition, the Spanish Ministry of Agriculture, Food and Environment carries out different campaigns to promote it among young athletes, establishing it as a suitable diet for sports. Objectives: The main aims of the study are to assess body composition, physical activity and adherence to the MD of beach handball players. It also aims to evaluate age group differences in male and female players, as well as studying the possible relationship between MD, body composition and performance variables. Methods: A total of 59 Spanish BH players were recruited in the national championship of BH in the province of Alicante. Thirty-eight male (14 junior; 17.0 ± 0.1 years and 24 seniors; 25.5 ± 4.7 years) and twenty-one female (7 junior; 16.1 ± 1.46 years and 14 seniors; 23.2 ± 2.0 years) BH players participated in this study. The questionnaire to evaluate eating habits was Mediterranean diet adherence (KIDMED). Body composition was measured with electrical bioimpedance. Strength was evaluated by means of a maximum isometric handgrip test of the dominant hand with handgrip and height of jump by counter-jump on contact platform. In the statistical analysis, descriptions and correlations between the study variables were made. Results: In females, when the adherence to the MD is lower, the weight is higher, the lean body mass is lower and worse results are observed in performance tests. As for males, there are differences in weight and lean body mass according to category. Conclusions: Adequate eating habits are related to the weight of beach handball athletes. In addition, specifically with junior players, it has been observed that adherence to the MD correlates with weight.

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