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BMC Sports Science, Medicine and Rehabilitation

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https://www.readbyqxmd.com/read/29299318/influence-of-recovery-strategies-upon-performance-and-perceptions-following-fatiguing-exercise-a-randomized-controlled-trial
#1
Fiona Crowther, Rebecca Sealey, Melissa Crowe, Andrew Edwards, Shona Halson
Background: Despite debate regarding their effectiveness, many different post-exercise recovery strategies are used by athletes. This study compared five post-exercise recovery strategies (cold water immersion, contrast water immersion, active recovery, a combined cold water immersion and active recovery and a control condition) to determine which is most effective for subsequent short-term performance and perceived recovery. Methods: Thirty-four recreationally active males undertook a simulated team-game fatiguing circuit followed by the above recovery strategies (randomized, 1 per week)...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29299317/a-systematic-review-investigating-measurement-properties-of-physiological-tests-in-rugby
#2
Matthew Chiwaridzo, Sander Oorschot, Jermaine M Dambi, Gillian D Ferguson, Emmanuel Bonney, Tapfuma Mudawarima, Cathrine Tadyanemhandu, Bouwien C M Smits-Engelsman
Background: This systematic review was conducted with the first objective aimed at providing an overview of the physiological characteristics commonly evaluated in rugby and the corresponding tests used to measure each construct. Secondly, the measurement properties of all identified tests per physiological construct were evaluated with the ultimate purpose of identifying tests with strongest level of evidence per construct. Methods: The review was conducted in two stages...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29299316/anthropometric-multicompartmental-model-to-predict-body-composition-in-brazilian-girls
#3
Dalmo Machado, Analiza Silva, Luis Gobbo, Paula Elias, Francisco J A de Paula, Nilo Ramos
Background: Anthropometric models remain appropriate alternatives to estimate body composition of peripubertal populations. However, these traditional models do not consider other body components that undergo major changes during peripubertal growth spurt, with restrictions to a multicompartimental approach as a quantitative growth. DXA has great potential to determine pediatric body composition in more than one component (3-C), but has limited use in field settings. Thus, the aim of this study was to propose and validate an anthropometric model for simultaneous estimation of lean soft tissue (LST), bone mineral content (BMC) and fat mass (FM) in healthy girls, from a multivariate approach of densitometric technique, as the criterion method...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29296281/validity-of-sports-watches-when-estimating-energy-expenditure-during-running
#4
Lilian Roos, Wolfgang Taube, Nadja Beeler, Thomas Wyss
Background: The aim of this study was to assess the accuracy of three different sport watches in estimating energy expenditure during aerobic and anaerobic running. Methods: Twenty trained subjects ran at different intensities while wearing three commercial sport watches (Suunto Ambit2, Garmin Forerunner920XT, and Polar V800). Indirect calorimetry was used as the criterion measure for assessing energy expenditure. Different formulas were applied to compute energy expenditure from the gas exchange values for aerobic and anaerobic running...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29238597/effects-of-nine-weeks-isokinetic-training-on-power-golf-kinematics-and-driver-performance-in-pre-elite-golfers
#5
James Parker, Charlie Lagerhem, John Hellström, M Charlotte Olsson
Background: It has previously been shown that isotonic strength training can improve driver performance among golfers, though few studies have investigated effects of strength training on swing kinematics together with driver performance. In this study we investigated whether isokinetic rotational training could improve driver performance and swing kinematic variables amongst elite golfers. Methods: Twenty competitive pre-elite golfers (handicap better than -3.0), 13 men and 7 women, were split into two groups, one group received the isokinetic power training (IK) alongside their normal isotonic pre-season strength-training and the other group continued with their normal isotonic pre-season strength-training regime (IT)...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29238596/limb-symmetry-during-double-leg-squats-and-single-leg-squats-on-land-and-in-water-in-adults-with-long-standing-unilateral-anterior-knee-pain-a-cross-sectional-study
#6
Anna C Severin, Brendan J Burkett, Mark R McKean, Aaron N Wiegand, Mark G L Sayers
Background: The presence of pain during movement typically results in changes in technique. However, the physical properties of water, such as flotation, means that water-based exercise may not only reduce compensatory movement patterns but also allow pain sufferers to complete exercises that they are unable to perform on land. The purpose of this study was to assess bilateral kinematics during double-leg squats and single-leg squats on land and in water in individuals with unilateral anterior knee pain...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29214025/are-we-missing-opportunities-physiotherapy-and-physical-activity-promotion-a-cross-sectional-survey
#7
Nicole Freene, Sophie Cools, Bernie Bissett
Background: Physical activity (PA) promotion in healthcare is an important strategy for increasing PA levels. Physiotherapists are well-positioned to promote PA, however no studies have investigated PA promotion by physiotherapists Australia-wide. Methods: An online survey of practicing Australian physiotherapists was conducted to investigate knowledge of the Australian Physical Activity and Sedentary Behaviour (PASB) guidelines and factors associated with increased promotion frequency...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29209504/the-fifa-11-injury-prevention-program-for-soccer-players-a-systematic-review
#8
David Sadigursky, Juliana Almeida Braid, Diogo Neiva Lemos De Lira, Bruno Almeida Barreto Machado, Rogério Jamil Fernandes Carneiro, Paulo Oliveira Colavolpe
Background: Soccer is one of the most widely played sports in the world. However, soccer players have an increased risk of lower limb injury. These injuries may be caused by both modifiable and non-modifiable factors, justifying the adoption of an injury prevention program such as the Fédération Internationale de Football Association (FIFA) 11+. The purpose of this study was to evaluate the efficacy of the FIFA 11+ injury prevention program for soccer players. Methodology: This meta-analysis was based on the PRISMA 2015 protocol...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29204280/physical-fitness-and-levels-of-physical-activity-in-people-with-severe-mental-illness-a-cross-sectional-study
#9
David Perez-Cruzado, Antonio I Cuesta-Vargas, Elisa Vera-Garcia, Fermín Mayoral-Cleries
Background: Physical fitness is a crucial variable in people with severe mental illness as these people could be more independent and improve their job opportunities. The present study compared the physical fitness of physically active and inactive people with severe mental illness. Methods: Physical fitness was evaluated in sixty-two people with severe mental illness using 11 physical tests that include strength, flexibility, balance and aerobic condition. Significant differences were found between both groups in muscle strength (handgrip test) and balance (single leg balance test and functional reach) with better performance in the group of physically active people...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29075501/could-current-factors-be-associated-with-retrospective-sports-injuries-in-brazilian-jiu-jitsu-a-cross-sectional-study
#10
Dayana das Graças, Letícia Nakamura, Fernando Sérgio Silva Barbosa, Paula Felippe Martinez, Filipe Abdalla Reis, Silvio Assis de Oliveira-Junior
BACKGROUND: Brazilian jiu-jitsu is characterized by musculoskeletal disorders and high occurrence of sports injuries. The present study was aimed to analyze some internal factors, as well as to describe occurrence and characteristics of retrospective musculoskeletal injuries in different age groups of Brazilian jiu-jitsu practitioners. METHODS: One hundred ninety-three Brazilian jiu-jitsu practitioners, which were divided into three age groups: Adolescent, Adult, and Master...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28785412/assessing-upper-limb-function-transcultural-adaptation-and-validation-of-the-portuguese-version-of-the-stroke-upper-limb-capacity-scale
#11
João Paulo Branco, Sandra Oliveira, João Páscoa Pinheiro, Pedro L Ferreira
BACKGROUND: Brachial hemiparesis is one of the most frequent sequelae of stroke, leading to important functional disability given the role of the upper limb in executing activities of daily living (ADL). The Stroke Upper Limb Capacity Scale (SULCS) is a stroke-specific assessment instrument that evaluates functional capacity of the upper limb based on the execution of 10 tasks. The objective of this study is the transcultural adaptation and psychometric validation of the Portuguese version of the SULCS...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28785411/hormonal-aspects-of-overtraining-syndrome-a-systematic-review
#12
Flavio A Cadegiani, Claudio E Kater
BACKGROUND: Overtraining syndrome (OTS), functional (FOR) and non-functional overreaching (NFOR) are conditions diagnosed in athletes with decreased performance and fatigue, triggered by metabolic, immune, hormonal and other dysfunctions and resulted from an imbalance between training stress and proper recovery. Despite previous descriptions, there is a lack of a review that discloses all hormonal findings in OTS/FOR/NFOR. The aim of this systematic review is to evaluate whether and which roles hormones play in OTS/FOR/NFOR...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28725437/towards-evidence-based-strength-training-a-comparison-of-muscle-forces-during-deadlifts-goodmornings-and-split-squats
#13
Florian Schellenberg, William R Taylor, Silvio Lorenzetti
BACKGROUND: To ensure an efficient and targeted adaptation with low injury risk during strength exercises, knowledge of the participant specific internal loading conditions is essential. The goal of this study was to calculate the lower limb muscles forces during the strength exercises deadlifts, goodmornings and splits squats by means of musculoskeletal simulation. METHODS: 11 participants were assessed performing 10 different variations of split squats by varying the step length as well as the maximal frontal tibia angle, and 13 participants were measured performing deadlift and goodmorning exercises...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28533914/the-influence-of-a-healthy-welcoming-environment-on-participation-in-club-sport-by-adolescent-girls-a-longitudinal-study
#14
M M Casey, R M Eime, J T Harvey, N A Sawyer, M J Craike, C M Symons, W R Payne
BACKGROUND: This study investigated the perceived influence of a Healthy Welcoming Environment (HWE) on participation in sports clubs among adolescent girls, and how these perceptions changed longitudinally. HWE was defined in terms of a set of health promotion policies advocated by a health promotion foundation as the basis of sport club health promotion practice to promote structural reform in state sporting organisations and their affiliated associations and clubs. These included sports injury prevention, smoke-free, responsible serving of alcohol, sun protection, healthy eating, and welcoming and inclusive environments...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28503309/are-there-two-forms-of-isometric-muscle-action-results-of-the-experimental-study-support-a-distinction-between-a-holding-and-a-pushing-isometric-muscle-function
#15
Laura V Schaefer, Frank N Bittmann
BACKGROUND: In isometric muscle function, there are subjectively two different modes of performance: one can either hold isometrically - thus resist an impacting force - or push isometrically - therefore work against a stable resistance. The purpose of this study is to investigate whether or not two different isometric muscle actions - the holding vs. pushing one (HIMA vs PIMA) - can be distinguished by objective parameters. METHODS: Ten subjects performed two different measuring modes at 80% of MVC realized by a special pneumatic system...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28451436/loading-conditions-in-the-spine-hip-and-knee-during-different-executions-of-back-extension-exercises
#16
Florian Schellenberg, Nicole Schmid, Ramona Häberle, Nicole Hörterer, William R Taylor, Silvio Lorenzetti
BACKGROUND: Back extension (BE) is a strength exercise for training the dorsal trunk and hip muscles. To optimise training recommendations that avoid overloading and possible injury, the aim of this study was to determine the loading conditions and the influence of different execution forms of BE on spine, hip and knee ranges of motion (RoMs), joint moments and muscle activity. METHODS: The kinematics, kinetics and muscle activity (EMG) of two execution types (BEh: dynamic hip, BEs: dynamic spine) and two versions (one-legged and two-legged) of BE were measured in 16 subjects...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28435685/quantification-and-physiological-significance-of-the-rightward-shift-of-the-v-slope-during-incremental-cardiopulmonary-exercise-testing
#17
Hirotaka Nishijima, Kazuo Kondo, Kazuya Yonezawa, Hiroki Hashimoto, Masayuki Sakurai
BACKGROUND: Ventilatory anaerobic threshold (VAT) is frequently used as a measure of exercise tolerance, with the V-slope method being the standard; however, this needs to be visually determined. Over the years, we have observed that the V-slope itself often appears to shift rightward before the appearance of the VAT (RtShift: rightward shift of V-slope). This phenomenon has long been known to occur during the first 1-2 min of steady-state exercise and disappears thereafter; it is attributed to CO2 storage, presumably in active muscle...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28373907/comparison-between-logbook-reported-and-objectively-assessed-physical-activity-and-sedentary-time-in-breast-cancer-patients-an-agreement-study
#18
Anne-Sophie Mazzoni, Karin Nordin, Sveinung Berntsen, Ingrid Demmelmaier, Helena Igelström
BACKGROUND: Increasing physical activity (PA) and decreasing sedentary time (ST) have important health effects among breast cancer patients, a growing population group. PA and sedentary behaviors are complex multi-dimensional behaviors and are challenging to monitor accurately. To date few studies have compared self-reports and objective measurement in assessing PA and ST in women undergoing breast cancer treatments. The aim of the present study was to compare self-reports and objective measures for assessing daily time spent in moderate-intensity physical activity (MPA), vigorous-intensity physical activity (VPA) and ST in women undergoing breast cancer treatments...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28316789/reliability-and-concurrent-validity-of-the-international-physical-activity-questionnaire-short-form-among-pregnant-women
#19
Birgitte Sanda, Ingvild Vistad, Lene Annette Hagen Haakstad, Sveinung Berntsen, Linda Reme Sagedal, Hilde Lohne-Seiler, Monica Klungland Torstveit
ABSTRACT: Sanda B, Vistad I, Haakstad LAH, Berntsen S, Sagedal LR, Lohne-Seiler H, Torstveit MK. Reliability and concurrent validity of the International Physical Activity Questionnaire short form among pregnant women. BACKGROUND: The International Physical Activity Questionnaire short-form (IPAQ-SF) is frequently used to assess physical activity (PA) level in the general adult population including pregnant women. However, the reliability and validity of the questionnaire in pregnancy is unknown...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28250934/team-sport-athletes-perceptions-and-use-of-recovery-strategies-a-mixed-methods-survey-study
#20
Fiona Crowther, Rebecca Sealey, Melissa Crowe, Andrew Edwards, Shona Halson
BACKGROUND: A variety of recovery strategies are used by athletes, although there is currently no research that investigates perceptions and usage of recovery by different competition levels of team sport athletes. METHODS: The recovery techniques used by team sport athletes of different competition levels was investigated by survey. Specifically this study investigated if, when, why and how the following recovery strategies were used: active land-based recovery (ALB), active water-based recovery (AWB), stretching (STR), cold water immersion (CWI) and contrast water therapy (CWT)...
2017: BMC Sports Science, Medicine and Rehabilitation
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