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Exercise Performance

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https://www.readbyqxmd.com/read/28731981/technology-in-strength-and-conditioning-assessing-bodyweight-squat-technique-with-wearable-sensors
#1
Martin A OʼReilly, Darragh F Whelan, Tomas E Ward, Eamonn Delahunt, Brian M Caulfield
O'Reilly, MA, Whelan, DF, Ward, TE, Delahunt, E, and Caulfield, BM. Technology in strength and conditioning: assessing bodyweight squat technique with wearable sensors. J Strength Cond Res 31(8): 2303-2312, 2017-Strength and conditioning (S&C) coaches offer expert guidance to help those they work with achieve their personal fitness goals. However, it is not always practical to operate under the direct supervision of an S&C coach and consequently individuals are often left training without expert oversight. Recent developments in inertial measurement units (IMUs) and mobile computing platforms have allowed for the possibility of unobtrusive motion tracking systems and the provision of real-time individualized feedback regarding exercise performance...
August 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28731979/global-positioning-system-analysis-of-a-high-school-football-scrimmage
#2
Benjamin H Gleason, Matthew L Sams, John T Salley, A Andrew Pustina, Michael H Stone
Gleason, BH, Sams, M, Salley, JT, Pustina, A, and Stone, MH. Global positioning system analysis of a high school football scrimmage. J Strength Cond Res 31(8): 2183-2188, 2017-The purpose of this study was to examine the physical demands of a high school American football scrimmage. Male high school football players (N = 25) participated in a spring scrimmage. Global positioning system data and game film were recorded throughout the entirety of the scrimmage to determine the total distance covered, the distance covered in different velocity bands, the number of accelerations and decelerations performed, and the work-to-rest ratio of the scrimmage...
August 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28731978/differences-in-spatiotemporal-parameters-between-trained-runners-and-untrained-participants
#3
Josué Gómez-Molina, Ana Ogueta-Alday, Christopher Stickley, Jesús Cámara, Jon Cabrejas-Ugartondo, Juan García-López
Gómez-Molina, J, Ogueta-Alday, A, Stickley, C, Tobalina, JC, Cabrejas-Ugartondo, J, and García-López, J. Differences in spatiotemporal parameters between trained runners and untrained participants. J Strength Cond Res 31(8): 2169-2175, 2017-The aim of this study was to compare the spatiotemporal parameters of trained runners and untrained participants with the same foot strike pattern (rearfoot) during running at controlled speeds. Twenty-one participants were classified in 2 groups according to their training experience: Trained (n = 10, amateur runners with long distance training experience) and Untrained (n = 11, healthy untrained participants)...
August 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28731882/the-effect-on-bone-outcomes-of-home-based-exercise-intervention-for-prostate-cancer-survivors-receiving-androgen-deprivation-therapy-a-pilot-randomized-controlled-trial
#4
Soo Hyun Kim, Do Hwan Seong, Sang Min Yoon, Young Deuk Choi, Eunju Choi, Youngkyu Song, Hosook Song
BACKGROUND: Cancer treatment-induced bone loss has important long-term effects in prostate cancer survivors (PCSs) receiving androgen deprivation therapy (ADT), but little is known about preventive interventions. OBJECTIVE: The aim of this study was to examine the feasibility and preliminary effectiveness of a 6-month home-based exercise intervention in PCSs. METHODS: In this pilot, randomized controlled trial, 51 men (mean age, 70.8 years) were randomized to a 6-month home-based exercise intervention for preventing osteoporosis group (n = 26) or an exercise placebo intervention of stretching exercise group (n = 25)...
July 20, 2017: Cancer Nursing
https://www.readbyqxmd.com/read/28731864/minimal-detectable-change-thresholds-and-responsiveness-of-zephyr-bioharness-fitbit-charge-devices
#5
Goris Nazari, Joy C MacDermid
The aim of the current study was to define the MDC thresholds for Zephyr Bioharness (ZB) and Fitbit Charge (FC-HR) heart rate variables, and to establish the internal responsiveness of ZB and FC-HR devices in terms of their heart rate, respiratory rate variables and number of steps taken variables, in a healthy sample of males and females at resting, sub-maximal activity and throughout recovery phases. A total of sixty participants (30 females, 48 ± 15) and (30 males, 48 ± 15) were recruited using stratified convenience and snowball sampling approaches from our university student, staff and faculty population...
July 18, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28730920/validity-of-a-device-designed-to-measure-braking-power-in-bicycle-disc-brakes
#6
Matthew C Miller, Philip W Fink, Paul William Macdermid, Blake G Perry, Stephen R Stannard
Real-world cycling performance depends not only on exercise capacities, but also on efficiently traversing the bicycle through the terrain. The aim of this study was to determine if it was possible to quantify the braking done by a cyclist in the field. One cyclist performed 408 braking trials (348 on a flat road; 60 on a flat dirt path) over 5 days on a bicycle fitted with brake torque and angular velocity sensors to measure brake power. Based on Newtonian physics, the sum of brake work, aerodynamic drag and rolling resistance was compared with the change in kinetic energy in each braking event...
July 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28729887/whole-body-vibration-training-improves-balance-control-and-sit-to-stand-performance-among-middle-aged-and-older-adults-a-pilot-randomized-controlled-trial
#7
Ming-Chen Ko, Long-Shan Wu, Sangwoo Lee, Chien-Chun Wang, Po-Fu Lee, Ching-Yu Tseng, Chien-Chang Ho
BACKGROUND: Aging is associated with decreased balance, which increases falling risk. The objective of the current study was to determine the feasibility and effects of whole-body vibration (WBV) training on knee extensor muscle power, limits of stability, and sit-to-stand performance among community-dwelling middle-aged and older adults in the United States. METHODS: A randomized pilot study with participant blinding was conducted. Feasibility outcomes included recruitment and compliance rate...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28729841/prevalence-of-non-responders-for-glucose-control-markers-after-10-weeks-of-high-intensity-interval-training-in-adult-women-with-higher-and-lower-insulin-resistance
#8
Cristian Álvarez, Rodrigo Ramírez-Campillo, Robinson Ramírez-Vélez, Mikel Izquierdo
Background: Exercise training improves performance and biochemical parameters on average, but wide interindividual variability exists, with individuals classified as responders (R) or non-responders (NRs), especially between populations with higher or lower levels of insulin resistance. This study assessed the effects of high-intensity interval training (HIIT) and the prevalence of NRs in adult women with higher and lower levels of insulin resistance. Methods: Forty adult women were assigned to a HIIT program, and after training were analyzed in two groups; a group with higher insulin resistance (H-IR, 40 ± 6 years; BMI: 29...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28729395/relationship-between-exercise-volume-and-muscle-protein-synthesis-in-a-rat-model-of-resistance-exercise
#9
Riki Ogasawara, Yuki Arihara, Junya Takegaki, Koichi Nakazato, Naokata Ishii
Resistance exercise (RE) volume is recognized as an important factor that stimulates muscle protein synthesis (MPS) and is considered, at least in part, to be involved in the mammalian target of rapamycin complex 1 (mTORC1)-associated signaling. However, the effects of relatively high doses of muscle contractions on mTORC1 and MPS remain unclear. In the present study, we used an animal model of RE to investigate the relationship between RE volume and MPS. Male Sprague-Dawley rats were subjected to RE, and muscle samples were obtained 6 h after performing 1, 3, 5, 10, or 20 sets of RE...
July 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28729320/construction-of-a-web-based-questionnaire-for-longitudinal-investigation-of-work-exposure-musculoskeletal-pain-and-performance-impairments-in-high-performance-marine-craft-populations
#10
Riccardo Lo Martire, Manudul Pahansen de Alwis, Björn Olov Äng, Karl Garme
OBJECTIVE: High-performance marine craft personnel (HPMCP) are regularly exposed to vibration and repeated shock (VRS) levels exceeding maximum limitations stated by international legislation. Whereas such exposure reportedly is detrimental to health and performance, the epidemiological data necessary to link these adverse effects causally to VRS are not available in the scientific literature, and no suitable tools for acquiring such data exist. This study therefore constructed a questionnaire for longitudinal investigations in HPMCP...
July 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28729308/the-effect-of-combined-resistance-exercise-training-and-vitamin-d3-supplementation-on-musculoskeletal-health-and-function-in-older-adults-a-systematic-review-and-meta-analysis
#11
Anneka Elizabeth Antoniak, Carolyn A Greig
OBJECTIVES: In older adults, there is a blunted responsiveness to resistance training and reduced muscle hypertrophy compared with younger adults. There is evidence that both exercise training and vitamin D supplementation may benefit musculoskeletal health in older adults, and it is plausible that in combination their effects may be additive. The aim of this systematic review was to evaluate the effectiveness of combined resistance exercise training and vitamin D3 supplementation on musculoskeletal health in older adults...
July 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28729214/milk-fat-globule-membrane-supplementation-with-voluntary-running-exercise-attenuates-age-related-motor-dysfunction-by-suppressing-neuromuscular-junction-abnormalities-in-mice
#12
Michiko Yano, Yoshihiko Minegishi, Satoshi Sugita, Noriyasu Ota
Age-related loss of skeletal muscle mass and function attenuates physical performance, and maintaining fine muscle innervation is known to play an important role in its prevention. We had previously shown that consumption of milk fat globule membrane (MFGM) with habitual exercise improves the muscle mass and motor function in humans and mice. Improvement of neuromuscular junction (NMJ) was suggested as one of the mechanisms underlying these effects. In this study, we evaluated the effect of MFGM intake combined with voluntary running (MFGM-VR) on morphological changes of NMJ and motor function in aging mice...
July 17, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28729213/physical-exercise-increases-sestrin-2-protein-levels-and-induces-autophagy-in-the-skeletal-muscle-of-old-mice
#13
Luciene Lenhare, Barbara M Crisol, Vagner R R Silva, Carlos K Katashima, André V Cordeiro, Karina D Pereira, Augusto D Luchessi, Adelino S R da Silva, Dennys E Cintra, Leandro P Moura, José R Pauli, Eduardo R Ropelle
Sestrins and autophagy deficiencies are associated with several aging-related organic dysfunctions and metabolic disorders. Here we evaluate the effects of acute exercise on Sestrin 2 (Sesn2) protein content and autophagy markers in the skeletal muscle of experimental models of aging. Twenty-four months-old C57BL/6J male mice were submitted to a single bout of swimming exercise and the gastrocnemius muscle was evaluated by Western blot. Transcriptomic and phenotypic analysis were also performed by using strains of genetically-diverse BXD mice...
July 17, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28728570/health-promotion-interventions-for-community-dwelling-older-people-with-mild-or-pre-frailty-a-systematic-review-and-meta-analysis
#14
Rachael Frost, Celia Belk, Ana Jovicic, Federico Ricciardi, Kalpa Kharicha, Benjamin Gardner, Steve Iliffe, Claire Goodman, Jill Manthorpe, Vari M Drennan, Kate Walters
BACKGROUND: Mild or pre-frailty is common and associated with increased risks of hospitalisation, functional decline, moves to long-term care, and death. Little is known about the effectiveness of health promotion in reducing these risks. This systematic review aimed to synthesise randomised controlled trials (RCTs) evaluating home and community-based health promotion interventions for older people with mild/pre-frailty. METHODS: We searched 20 bibliographic databases and 3 trials registers (January 1990 - May 2016) using mild/pre-frailty and associated terms...
July 20, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28728559/effect-of-insulin-therapy-and-dietary-adjustments-on-safety-and-performance-during-simulated-soccer-tests-in-people-with-type-1-diabetes-study-protocol-for-a-randomized-controlled-trial
#15
Javier Calvo-Marín, Gabriel Torrealba-Acosta, Matthew Campbell, Jesse Gaboury, Ajmol Ali, Chih Hao Chen-Ku
BACKGROUND: Despite the reduction in glycemic derangement in patients with type 1 diabetes mellitus (T1D) through dietary and therapeutic adjustments implemented before, during and after continuous exercise, evidence for its effectiveness with intermittent forms of exercise, such as soccer, is still lacking. METHODS/DESIGN: We designed a study protocol for a randomized, crossover, double-blinded, controlled trial, for the evaluation of the effect that a strategy of dietary and therapeutic modifications may have on safety and performance of persons with T1D in soccer training sessions and cognitive testing...
July 20, 2017: Trials
https://www.readbyqxmd.com/read/28728374/analysis-of-metabolomic-patterns-in-thoroughbreds-before-and-after-exercise
#16
Hyun-Jun Jang, Duk-Moon Kim, Kyu-Bong Kim, Jeong-Woong Park, Jae-Young Choi, Jin Hyeog Oh, Ki-Duk Song, Suhkmann Kim, Byung-Wook Cho
Objective: Evaluation of exercise effects in racehorse is important in horseracing industry and animal health care. In this study, we compared metabolic patterns between before and after exercise to screen metabolic biomarkers for exercise effects in thoroughbreds. Methods: The concentration of metabolites in muscle, plasma, and urine was measured by 1H NMR spectroscopy analysis and the relative metabolite levels in the three samples were compared between before and after exercise...
June 27, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28727771/randomized-controlled-trial-on-the-effects-of-a-supervised-high-intensity-exercise-program-in-patients-with-a-hematologic-malignancy-treated-with-autologous-stem-cell-transplantation-results-from-the-exist-study
#17
Saskia Persoon, Mai J M ChinAPaw, Laurien M Buffart, Roberto D K Liu, Pierre Wijermans, Harry R Koene, Monique C Minnema, Pieternella J Lugtenburg, Erik W A Marijt, Johannes Brug, Frans Nollet, Marie José Kersten
BACKGROUND: This single blind, multicenter randomized controlled trial aimed to evaluate the effectiveness of a supervised high intensity exercise program on physical fitness and fatigue in patients with multiple myeloma or lymphoma recently treated with autologous stem cell transplantation. METHODS: 109 patients were randomly assigned to the 18-week exercise intervention or the usual care control group. The primary outcomes included physical fitness (VO2peak and Wpeak determined using a cardiopulmonary exercise test; grip strength and the 30s chair stand test) and fatigue (Multidimensional Fatigue Inventory) and were assessed prior to randomization and after completion of the intervention or at similar time points for the control group...
2017: PloS One
https://www.readbyqxmd.com/read/28727674/the-community-balance-and-mobility-scale-a-valid-assessment-tool-of-balance-in-cardiac-rehabilitation-patients
#18
Luke Martelli, Dave Saraswat, Gail Dechman, Nicholas B Giacomantonio, Scott A Grandy
PURPOSE: Many patients participating in cardiac rehabilitation (CR) programs have decreased balance. This is a concern, as it may affect their ability to optimally perform physical exercise in CR and thus decrease CR efficacy. Despite this concern, balance is typically not assessed as part of CR intake. This may be attributable to the fact that a suitable balance assessment tool has not been identified for higher-functioning CR patients. A potential solution to this issue is using the Community Balance and Mobility Scale (CBMS), which has been used to assess balance in higher-functioning clinical populations; however, its use in a CR population has never been investigated...
July 19, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28727673/exercise-training-improves-ventilatory-efficiency-in-patients-with-a-small-abdominal-aortic-aneurysm-a-randomized-controlled-study
#19
Ricardo M Lima, Baruch Vainshelboim, Rucha Ganatra, Ronald Dalman, Khin Chan, Jonathan Myers
PURPOSE: To investigate the effects of exercise training on ventilatory efficiency and physiological responses to submaximal exercise in subjects with small abdominal aortic aneurysm (AAA). METHODS: Sixty-five male patients (72.3 ± 7.0 years) were randomized to exercise training (n = 33) or usual care group (n = 32). Exercise subjects participated in a training groups for 3 mo. Cardiopulmonary exercise testing was performed before and after the study period and peak VO2, the ventilatory threshold (VT), the oxygen uptake efficiency slope (OUES), and the VE2/VCO2 slope were identified...
July 19, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28727672/cardiac-rehabilitation-in-patients-with-left-ventricular-assist-device-a-systematic-review-and-meta-analysis
#20
Toufik Mahfood Haddad, Alok Saurav, Aiman Smer, Muhammad S Azzouz, Abhilash Akinapelli, Mark A Williams, Venkata M Alla
PURPOSE: Exercise-based cardiac rehabilitation (EBCR) has been demonstrated to improve functional capacity in heart failure (HF). However, there are limited data on the effect of EBCR in patients with advanced HF and left ventricular assist devices (LVADs). This meta-analysis sought to evaluate the effects of EBCR on functional capacity in patients with LVAD. METHODS: PubMed, Web of Science, CINAHL, and Cochrane Library databases were searched for randomized studies assessing the impact of EBCR in patients following LVAD implantation compared with standard therapy (ST)...
July 19, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
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