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https://www.readbyqxmd.com/read/29886507/ground-kayak-paddling-exercise-improves-postural-balance-muscle-performance-and-cognitive-function-in-older-adults-with-mild-cognitive-impairment-a-randomized-controlled-trial
#1
Wonjae Choi, Seungwon Lee
BACKGROUND Kayaking is an interesting and posturally challenging activity; however, kayaking may be limited by safety issues in older adults. The aim of this study was to determine whether ground kayak paddling (GKP) exercise can improve postural balance, muscle performance, and cognitive function in older adults with mild cognitive impairment. MATERIAL AND METHODS Sixty participants were randomly allocated to a GKP group (n=30; mean age, 74 years) or a control group (n=30; mean age, 74 years). GKP exercise consisted 5 types of exercise protocols, including paddling and multi-directional reaching with repetitive trunk and upper-extremities movements, which was performed for 60 min twice a week for 6 weeks...
June 10, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29781908/musculoskeletal-injury-in-paddle-sport-athletes
#2
Andrew R Griffin, Diana M Perriman, Teresa M Neeman, Paul N Smith
INTRODUCTION: Kayak racing has been an Olympic sport since 1936. The sport is evolving with the introduction of ocean skis and stand-up-paddle boards (SUP). Musculoskeletal injury incidence surveys have been conducted for ultra-marathon events, but no data have been published for other racing formats. OBJECTIVE: To identify and compare the rates and types of injuries sustained by paddling athletes as a function of discipline and training parameters in Sprint, Marathon, Ultra-Marathon, and Ocean events...
May 16, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29753813/fos-metamorphoses-lessons-from-mutants-in-model-organisms-drosophila
#3
REVIEW
Carlos Alfonso-Gonzalez, Juan Rafael Riesgo-Escovar
The Fos oncogene gene family is evolutionarily conserved throughout Eukarya. Fos proteins characteristically have a leucine zipper and a basic region with a helix-turn-helix motif that binds DNA. In vertebrates, there are several Fos homologs. They can homo- or hetero-dimerize via the leucine zipper domain. Fos homologs coupled with other transcription factors, like Jun oncoproteins, constitute the Activator Protein 1 (AP-1) complex. From its original inception as an oncogene, the subsequent finding that they act as transcription factors binding DNA sequences known as TRE, to the realization that they are activated in many different scenarios, and to loss-of-function analysis, the Fos proteins have traversed a multifarious path in development and physiology...
May 10, 2018: Mechanisms of Development
https://www.readbyqxmd.com/read/29745773/muscle-oxygenation-rather-than-vo-2-max-is-a-strong-predictor-of-performance-in-sprint-canoe-kayak
#4
Myriam Paquette, François Bieuzen, François Billaut
PURPOSE: This study aimed to characterize the relationships between muscle oxygenation and performance during on- and off-water tests in highly trained sprint canoe-kayak athletes. METHODS: Thirty athletes (19 kayakers and 11 canoeists) performed a maximal incremental test on a canoe or kayak ergometer for determination of VO2max and examination of the relation between peak power output (PPO) and physiological parameters. A subset of 21 athletes also performed a 200-m and a 500-m (for women) or 1000-m (for men) on-water time trials...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29599856/influence-of-dynamic-neuromuscular-stabilization-approach-on-maximum-kayak-paddling-force
#5
Pavel Davidek, Ross Andel, Alena Kobesova
The purpose of this study was to examine the effect of Dynamic Neuromuscular Stabilization (DNS) exercise on maximum paddling force (PF) and self-reported pain perception in the shoulder girdle area in flatwater kayakers. Twenty male flatwater kayakers from a local club (age = 21.9 ± 2.4 years, body height = 185.1 ± 7.9 cm, body mass = 83.9 ± 9.1 kg) were randomly assigned to the intervention or control groups. During the 6-week study, subjects from both groups performed standard off-season training. Additionally, the intervention group engaged in a DNS-based core stabilization exercise program (quadruped exercise, side sitting exercise, sitting exercise and squat exercise) after each standard training session...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29566543/beetroot-based-gel-supplementation-improves-handgrip-strength-forearm-muscle-o2-saturation-but-not-exercise-tolerance-and-blood-volume-in-jiu-jitsu-athletes
#6
Gustavo Vieira de Oliveira, Luiz Nascimento, Mônica Volino-Souza, Jacilene Mesquita, Thiago Alvares
The ergogenic effect of beetroot on the exercise performance of trained cyclists, runners, kayakers, and swimmers has been demonstrated. However, whether or not beetroot supplementation presents a beneficial effect on the exercise performance of jiu-jitsu athletes (JJA) remains inconclusive. Therefore, present study assessed the effect of beetroot-based gel (BG) supplementation on maximal voluntary contraction (MVC), exercise time until fatigue (ETF), muscle O2 saturation (SmO2), blood volume (tHb), and plasma nitrate and lactate in response to handgrip isotonic exercise (HIE) in JJA...
March 22, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29541044/aging-adventure-athletes-assess-achievements-and-alter-aspirations-to-maintain-self-esteem
#7
Ralf C Buckley
Achievements and capabilities influence the self-esteem of skilled adventure athletes. Self-esteem affects individual mental health. Aging commonly reduces adventure capabilities. To avoid loss in self-esteem, aging adventure athletes are forced to adjust their aspirations. Here, I examine this process using participant observation, ethnographic and autoethnographic approaches. The qualitative data for this analysis are derived from 60 years' experience in outdoor adventure activities, and ∼30,000 person-hours of participant observation...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29489872/novel-paddle-stroke-analysis-for-elite-slalom-kayakers-relationship-with-force-parameters
#8
Leonardo Henrique Dalcheco Messias, Filipe Antônio de Barros Sousa, Ivan Gustavo Masseli Dos Reis, Homero Gustavo Ferrari, Claudio Alexandre Gobatto, Camila Caputo Saldanha Serra, Marcelo Papoti, Fúlvia Barros Manchado-Gobatto
This study was divided into two complementary parts. In Part 1, we proposed a novel paddle strokes analysis based on the force signal from a 30-s all-out tethered test; and compared these results with video recordings. In Part 2, we investigated the relationship between force data from the same test with paddle stroke results from both methods. Eleven male elite slalom kayakers (Brazilian national team) were evaluated. The tethered test was conducted for force parameters analysis (peak-force, mean-force, impulse)...
2018: PloS One
https://www.readbyqxmd.com/read/29469837/kayaking-paddle-blade-compression-load-distribution-sensing-system-based-on-optical-fiber-with-a-polydimethylsiloxane-membrane
#9
Luo Niu, Li Han Chen, Zhi Qiang Tou, Cheryl Sihui Tay, Yun Feng Lin, Pui Wah Kong, Fook Rhu Ong, Chi Chiu Chan
This paper proposed a novel real-time compression load measurement system for a kayaking paddle based on optical fiber technology. The optical fiber sensor, fiber Bragg grating, is embedded in a 2 mm polydimethylsiloxane membrane, which serves as a pressure mat that can be easily attached/detached to/from the kayaking paddle. The proposed system is proposed for measuring and evaluating both handgrip loading and paddle blade load distribution during on-water kayaking, e.g., peak compression load distribution pattern and duration of the paddle blade in real time...
February 20, 2018: Applied Optics
https://www.readbyqxmd.com/read/29461419/morphological-and-physical-fitness-profile-of-young-female-sprint-kayakers
#10
Daniel López-Plaza, Fernando Alacid, Jacobo Ángel Rubio, Pedro Ángel López-Miñarro, José María Muyor, Pedro Manonelles
Traditionally, physical and anthropometrical profiles of the most successful kayak athletes have been identified in male kayakers. This study attempted to identify the differences in morphology and fitness level of two performance-based groups of young elite female paddlers. Eighty-six female kayakers, aged 13.62 ± 0.57 years (mean ± SD) were allocated in two groups (Top-10 and Rest) depending on their ranking in the three Olympic distances (200, 500 and 1000 meters). All subjects underwent a battery of anthropometrical (heights, weight, girths and sum of skinfolds), physical fitness (overhead medicine ball throw, countermovement jump, sit-and-reach test and 20-m multistage shuttle run test) and specific performance assessments (200, 500 and 1000 meters)...
February 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29446708/does-local-dynamic-stability-of-kayak-paddling-technique-affect-the-sports-performance-a-pilot-study
#11
Daniel Hamacher, Tobias Krebs, Guido Meyer, Astrid Zech
During competition, kayak athletes must optimally adapt to environmental factors (e.g. wind, waves) to achieve peak performance. However, the ability to adapt to such perturbations has never been assessed in kayak paddling. Therefore, the aim of the current study was to evaluate the local dynamic stability in sports technique of youth sprint kayak athletes. In a cross-sectional study, 14 healthy male athletes were recruited from an elite youth sprint kayak squad. During an incremental kayak ergometer test, mean power, heart rates and local dynamic technique stability of hands, arms, trunk and paddle were registered and the association with the athletes 2000 m free-water times were estimated using mixed models...
February 15, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29363470/understanding-olympic-champions-and-their-achievement-goal-orientation-dominance-and-pursuit-and-motivational-regulations-a-case-study
#12
Javier Fernández-Río, José A Cecchini, Antonio Méndez-Giménez, Nicolás Terrados, Miguel García
BACKGROUND: The goal was to compare the achievement goal profile and the motivational regulations of one world-class and two high-level athletes during their preparation for the Rio Olympic Games. METHOD: Three kayakers from the Spanish Olympic team participated. One (P1) and two (P2) were high-level athletes: finalists at the World and European championships, and several national championships. Participant three (P3) was a world-class athlete: 2 Olympic medals, 7 World championship medals, 4 European championship medals, and several national championships...
February 2018: Psicothema
https://www.readbyqxmd.com/read/29283928/maximal-upper-body-strength-and-oxygen-uptake-are-associated-with-performance-in-high-level-200-m-sprint-kayakers
#13
Craig W Pickett, Kazunori Nosaka, James Zois, Will G Hopkins, Anthony J, Blazevich
Current training and monitoring methods in sprint kayaking are based on the premise that upper-body muscular strength and aerobic power are both important for performance, but limited evidence exists to support this premise in high-level athletes. Relationships between measures of strength, maximal oxygen uptake (VO2max) and 200-m race times in kayakers competing at national-to-international levels were examined. Data collected from Australian Canoeing training camps and competitions for 7 elite, 7 national and 8 club level male sprint kayakers were analyzed for relationships between maximal isoinertial strength (3-RM bench press, bench row, chin-up and deadlift), VO2max on a kayak ergometer, and 200-m race time...
December 27, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239986/practical-model-of-low-volume-paddling-based-sprint-interval-training-improves-aerobic-and-anaerobic-performances-in-professional-female-canoe-polo-athletes
#14
Mohsen Sheykhlouvand, Erfan Khalili, Mohammadali Gharaat, Hamid Arazi, Mousa Khalafi, Bahman Tarverdizadeh
Brief, intense exercise training employing running and cycling as exercise interventions may induce aerobic and anaerobic adaptations in athletes from wide range of sports. However, this has not been studied extensively for those sports in which the upper-body is predominantly involved. Our purpose was to examine the effects of kayak paddling-based sprint interval training (SIT) on cardiorespiratory fitness and anaerobic performance. 16 professional female canoe polo athletes (age = 27.6 ± 1.9 years; height = 165...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29190283/sonic-kayaks-environmental-monitoring-and-experimental-music-by-citizens
#15
Amber G F Griffiths, Kirsty M Kemp, Kaffe Matthews, Joanne K Garrett, David J Griffiths
The Sonic Kayak is a musical instrument used to investigate nature and developed during open hacklab events. The kayaks are rigged with underwater environmental sensors, which allow paddlers to hear real-time water temperature sonifications and underwater sounds, generating live music from the marine world. Sensor data is also logged every second with location, time and date, which allows for fine-scale mapping of water temperatures and underwater noise that was previously unattainable using standard research equipment...
November 2017: PLoS Biology
https://www.readbyqxmd.com/read/29169200/-german-language-version-and-validation-of-the-risk-taking-behaviour-scale-rbs-k-for-high-risk-sports
#16
Anika Frühauf, Martin Niedermeier, Gerhard Ruedl, Matthew Barlow, Tim Woodman, Martin Kopp
Background High-risk sports, particularly climbing, kayaking and extreme skiing, have become increasingly popular. The most widely used psychological survey instrument with regard to risk behaviour in sports is the Sensation Seeking Model, mostly assessed by the Sensation Seeking Scale (SSS-V). Until recently, the literature discussed risk behaviour solely through this model. However, this scale does not measure risk-taking behaviours. In contrast, the Risk-Taking Behaviour Scale (RBS-K) is a three-item scale that measures risk behaviour in high-risk sports...
November 23, 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/29160152/effect-of-wetted-surface-area-on-friction-pressure-wave-and-total-drag-of-a-kayak
#17
Beatriz B Gomes, Leandro Machado, Nuno V Ramos, Filipe A V Conceição, Ross H Sanders, Mário A P Vaz, João Paulo Vilas-Boas, David R Pendergast
Using theoretical principles, the components of drag (friction DF, pressure DPR and wave DW) of a single-seat kayak were analysed. The purpose was to examine the effect of changes in wetted surface area due to changes in kayaker's weight and the relative contribution of DF, DPR and DW to the total passive drag as function of velocity. The total passive drag values were based on experimental data collected in a single-seat kayak. Three different kayaker simulated weights were tested - 65, 75 and 85 kg. DF was the drag component that contributed the greatest percentage (between 60 and 68% at 5...
November 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28991036/no-effect-of-%C3%AE-alanine-on-muscle-function-and-kayak-performance
#18
Signe Refsgaard Bech, Tobias Schmidt Nielsen, Martin Hald, Jarl Pors Jakobsen, Nikolai Baastrup Nordsborg
PURPOSE: If β-alanine supplementation counteracts muscular fatigue development or improves athletic performance was investigated. METHODS: Elite kayak rowers (10 men and 7 women) were supplemented with either 80 mg·kg body mass·d of β-alanine or placebo for 8 wk. Muscular fatigue development was investigated by applying a 2-min elbow flexor maximal voluntary contraction (MVC). EMG was recorded continuously, and voluntary activation was determined 30, 60, 90, and 115 s into the 2-min MVC...
March 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28990466/task-dependent-cold-stress-during-expeditions-in-antarctic-environments
#19
Drew M Morris, June J Pilcher, Robert B Powell
This study seeks to understand the degree of body cooling, cold perception and physical discomfort during Antarctic tour excursions. Eight experienced expedition leaders across three Antarctic cruise voyages were monitored during occupational tasks: kayaking, snorkelling and zodiac outings. Subjective cold perception and discomfort were recorded using a thermal comfort assessment and skin temperature was recorded using a portable data logger. Indoor cabin temperature and outdoor temperature with wind velocity were used as measures of environmental stress...
2017: International Journal of Circumpolar Health
https://www.readbyqxmd.com/read/28968153/exergaming-for-individuals-with-spinal-cord-injury-a-pilot-study
#20
Maziah Mat Rosly, Mark Halaki, Hadi Mat Rosly, Victor Cuesta, Nazirah Hasnan, Glen M Davis, Ruby Husain
OBJECTIVE: Commercially available exergames that are for wheelchair-bound individuals with spinal cord injury (SCI) are scarce. This study sought to identify exergames for individuals with SCI that are "dose-potent" for health benefits. MATERIALS AND METHODS: Six participants with SCI were recruited for a pilot study to investigate the exercise intensity of selected exergames (Move Tennis, Move Boxing, and Move Gladiator Duel) for the potential to improve health...
October 2017: Games for Health
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