journal
MENU ▼
Read by QxMD icon Read
search

Medicine and Science in Sports and Exercise

journal
https://www.readbyqxmd.com/read/29927875/depressed-physical-performance-outlasts-hormonal-disturbances-after-military-training
#1
Håvard Hamarsland, Gøran Paulsen, Paul A Solberg, Ole Gunnar Slaathaug, Truls Raastad
INTRODUCTION: The aim of this study was to investigate the effect of an arduous one-week military course on measures of physical performance, body composition and blood biomarkers. METHODS: Participants were apprentices in an annual selection course for the Norwegian Special Forces. Fifteen soldiers (23±4 yrs., 1.81±0.06 m, 78±7 kg) completed a hell-week consisting of rigorous activity only interspersed by 2-3 hours of sleep per day. Testing was conducted before and 0, 1, 3, 7 and 14 days after the hell-week...
June 21, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29927876/an-investigation-of-dynamic-cerebral-autoregulation-in-adolescent-concussion
#2
M Erin Moir, Christopher S Balestrini, Kolten C Abbott, Stephen A Klassen, Lisa K Fischer, Douglas D Fraser, J Kevin Shoemaker
PURPOSE: Although cerebrovascular impairments are believed to contribute to concussion symptoms, little information exists regarding brain vasomotor control in adolescent concussion, particularly autoregulatory control that forms a fundamental response mechanism during changes in blood pressure. This research tested the hypothesis that adolescent concussion is marked by impaired dynamic cerebral autoregulation. METHODS: Nineteen concussed adolescents (15 ± 2 years, 13 females) and eighteen healthy controls (15 ± 2 years, 9 females) completed two sit-to-stand trials...
June 20, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29923910/hypoxic-training-improves-normoxic-glucose-tolerance-in-adolescents-with-obesity
#3
Estelle De Groote, Florian A Britto, Loïc Bullock, Marie François, Carine De Buck, Henri Nielens, Louise Deldicque
PURPOSE: To test whether environmental hypoxia could potentiate the effects of exercise training on glucose metabolism and insulin sensitivity. METHODS: Fourteen adolescents with obesity were assigned to 6 weeks of exercise training either in normoxic or in hypoxic conditions (FiO2 15%). Adolescents trained 3x/w for 50-60min, including endurance and resistance exercises. Oral glucose tolerance test (OGTT), blood and morphological analyses as well as physical performance tests were performed before and after the training period...
June 20, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29889821/postexercise-hemodynamic-responses-in-lean-and-obese-men
#4
Zachary S Zeigler, Pamela D Swan, Matthew P Buman, Farouk Mookadam, Glenn A Gaesser, Siddhartha S Angadi
PURPOSE: We assessed resting central/peripheral blood pressure (BP), postexercise BP and hemodynamic responses [stroke volume (SV), cardiac output (CO), systemic vascular resistance (SVR)] after acute exercise and 2 wk of aerobic training in lean and centrally obese men matched for BP. METHODS: Eight lean (body mass index (BMI) <25 kg/m; visceral fat = 279±224 cm) and eight centrally obese (BMI>30 kg/m; visceral fat = 1,471±374 cm) men performed 6 training sessions (3d/wk for 40 min at 65-70%HRmax)...
June 8, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29889820/the-yips-methods-to-identify-golfers-with-a-dystonic-etiology-golfer-s-cramp
#5
Charles H Adler, M'hamed Temkit, Debra Crews, Troy McDaniel, Jennifer Tucker, Joseph G Hentz, Christian Marquardt, Dale Abraham, John N Caviness
PURPOSE: To determine whether quantitative methods could separate golfers with a possible dystonic cause of the "yips" from those that appear to be non-dystonic. METHODS: 27 golfers completed 10 two-handed and 10 right hand only putts. Surface EMG assessed forearm muscle co-contraction and motion detectors monitored wrist and putter movements. Based on videotape review, golfers were grouped into those with yips of dystonic etiology, those with the yips non-dystonic, and those with no yips...
June 8, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29889819/predicting-ground-reaction-force-from-a-hip-borne-accelerometer-during-load-carriage
#6
Jennifer M Neugebauer, Michael LaFiandra
INTRODUCTION: Ground reaction forces (GRFs) during load carriage differ from unloaded walking. Methods to quantify peak vertical GRF (pGRFvert) of Soldiers walking with loads outside of a laboratory are needed in order to study GRFs during operationally relevant tasks. PURPOSE: Develop a statistically based model to predict pGRFvert during loaded walking from ActiGraph GT3X+ activity monitor (AM) vertical acceleration. METHODS: 15 male Soldiers (25...
June 8, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29864080/pilot-study-of-impact-of-a-pedal-desk-on-postprandial-responses-in-sedentary-workers
#7
Ho Han, Jongil Lim, Richard Viskochil, Elroy J Aguiar, Catrine Tudor-Locke, Stuart R Chipkin
Physical inactivity has been linked to rates of obesity, diabetes and heart disease through insulin resistance and other mechanisms. While sedentary workplace environments have unintentionally contributed to the risk for chronic diseases, innovations in the workplace environment could potentially rectify this public and occupational health problem. PURPOSE: To evaluate the effects of light intensity physical activity using a pedal desk (PD) compared to a standard desk (STD) in a pilot study on postprandial metabolic responses and work skills...
June 1, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29683922/a-review-of-accelerometer-based-activity-monitoring-in-cancer-survivorship-research
#8
Carolyn J Peddle-McIntyre, Vinicius Cavalheri, Terry Boyle, Joanne A McVeigh, Emily Jeffery, Brigid M Lynch, Jeff K Vallance
BACKGROUND: In the cancer survivorship context, physical activity and sedentary behaviour have been measured using different methods and tools. PURPOSE: To conduct a narrative review of published research in cancer survivor populations to summarise the quality and identify gaps in reporting on accelerometer data collection, data processing, and outcome measures in cancer survivors. METHODS: An initial PubMed® search of papers published in English was conducted in January 2017, and a final search was conducted in May 2017...
May 23, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29787476/maternal-physical-activity-and-sex-impact-markers-of-hepatic-mitochondrial-health
#9
Rory P Cunningham, Mary P Moore, Grace M Meers, Gregory N Ruegsegger, Frank W Booth, R Scott Rector
INTRODUCTION: Maternal exercise and physical activity during the gestational period can be protective against maternal high fat diet-induced hepatic steatosis in older offspring. However, it is unknown whether these protective effects are seen in younger offspring. Here we investigated whether maternal physical activity would attenuate maternal western diet (WD)-induced steatosis in young adult rats. METHODS: Female Wistar rats (7-8 weeks of age) were randomized into WD (42% fat, 27% sucrose) or normal chow diet (ND), and further randomized into physical activity (RUN) or sedentary (SED) conditions for a total of four groups...
May 22, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29787475/isometric-versus-dynamic-measurements-of-fatigue-does-age-matter-a-meta-analysis
#10
Renata L Krüger, Saied Jalal Aboodarda, Pierre Samozino, Charles L Rice, Guillaume Y Millet
PURPOSE: The assessment of power changes after fatiguing exercise provides important additional information about neuromuscular function compared to traditional isometric measurements, especially when exploring age-related changes in fatigability. Therefore, the aim of this review was to explore the effects of age on neuromuscular fatigue (NMF) when measured in isometric compared with dynamic contractions. The importance of central and peripheral mechanisms contributing to age-related NMF were discussed...
May 22, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29787474/hypothermia-decreases-o2-cost-for-ex-vivo-contraction-in-mouse-skeletal-muscle
#11
Patrick J Ferrara, Anthony R P Verkerke, Jeffrey J Brault, Katsuhiko Funai
INTRODUCTION: Evidence suggests that the energy efficiency of key ATPases involved in skeletal muscle contractile activity are improved in a hypothermic condition. However, it is unclear how a decrease in temperature affects skeletal muscle O2 consumption (mVO2) induced by muscle contraction. METHODS: Isolated mouse extensor digitorum longus (EDL) muscles were incubated in a temperature-controlled (37°C or 25°C) bath that included an O2 probe. EDL muscles from one limb were subjected to the measurement of resting mVO2, and the contralateral EDL muscles were used for the measurement of mVO2 with electrically-stimulated contraction...
May 22, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29787473/factors-contributing-to-medial-tibial-stress-syndrome-in-runners-a-prospective-study
#12
James Becker, Mimi Nakajima, Will F W Wu
PURPOSE: Medial tibial stress syndrome (MTSS) is one of the most common overuse injuries sustained by runners. Despite the prevalence of this injury, risk factors for developing MTSS remain unclear. The purpose of this study was to prospectively evaluate differences in passive range of motion, muscle strength, plantar pressure distributions, and running kinematics between runners who developed MTSS and those who did not. METHODS: 24 NCAA Division 1 cross country runners participated in this study...
May 22, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29771824/psychological-and-behavioral-responses-to-interval-and-continuous-exercise
#13
Matthew J Stork, Martin J Gibala, Kathleen A Martin Ginis
PURPOSE: To compare psychological responses to, and preferences for, moderate-intensity continuous training (MICT), high-intensity interval training (HIIT), and sprint interval training (SIT) among inactive adults; and to investigate the relationships between affect, enjoyment, exercise preferences, and subsequent exercise behavior over a 4-wk follow-up period. METHODS: Thirty inactive men and women (21.23±3.81 y), inexperienced with HIIT or SIT, completed three trials of cycle ergometer exercise in random order on separate days: MICT (45min continuous; ~70-75% of heart rate maximum (HRmax)); HIIT (10x1 min bouts at ~85-90%HRmax with 1-min recovery periods); and SIT (3x20-s "all-out" sprints with 2-min recovery periods)...
May 16, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29771823/residual-force-enhancement-is-attenuated-in-a-shortening-magnitude-dependent-manner
#14
Atsuki Fukutani, Walter Herzog
INTRODUCTION: The isometric force attained after active stretch is greater than that attained in a purely isometric contraction. This property is referred to as residual force enhancement (RFE). Although RFE is thought to contribute to the enhanced force and power in stretch-shortening cycles (SSCs), it is unclear whether shortening that occurs after active stretch eliminates the RFE induced by active stretch. Therefore, we evaluated the influence of shortening on RFE. METHODS: Skinned rabbit soleus fibers (N = 43) were used for all tests...
May 16, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29762253/glucose-tolerance-is-linked-to-postprandial-fuel-use-independent-of-exercise-dose
#15
Nicole M Gilbertson, Natalie Z M Eichner, Monique Francois, Julian M Gaitán, Emily M Heiston, Arthur Weltman, Steven K Malin
PURPOSE: The optimal short-term exercise dose to improve glucose tolerance in relation to metabolic flexibility and/or insulin resistance is unknown. Therefore, we tested if short-term, work-matched continuous (CONT) versus interval (INT) exercise training improves glucose tolerance in part by reducing insulin resistance and increasing metabolic flexibility independent of clinically meaningful fat loss in adults with prediabetes. METHODS: Subjects (age 60.9±1.4y; BMI 33...
May 14, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29762252/high-intensity-interval-or-continuous-moderate-exercise-a-24-week-pilot-trial
#16
Sean R Locke, Jessica E Bourne, Mark R Beauchamp, Jonathan P Little, Julianne Barry, Joel Singer, Mary E Jung
PURPOSE: High-intensity interval training (HIIT) may lead to superior cardiometabolic improvements when compared to moderate-intensity continuous training (MICT). However, adherence to HIIT requires examination. The purpose of this pilot study was to examine moderate-to-vigorous physical activity (MVPA) adherence 24 weeks following a brief counselling intervention combined with either HIIT or MICT. METHODS: Individuals at high risk of type 2 diabetes (T2D) were randomized to HIIT (n = 15) or MICT (n = 17) and completed 10 exercise sessions accompanied by a brief 10-minute counselling intervention over a 2-week period...
May 14, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29757826/physical-activity-levels-predict-exercise-induced-hypoalgesia-in-older-adults
#17
Thomas Ohlman, Leah Miller, Keith E Naugle, Kelly M Naugle
Prior research indicates that older adults exhibit a deficient capacity to activate multiple pain inhibitory mechanisms, including pain inhibition after acute exercise termed exercise-induced hypoalgesia (EIH). The influence of physical activity levels and psychological processes on EIH in older adults remains unclear. PURPOSE: This study examined potential psychological and physical activity predictors of the magnitude of EIH following submaximal isometric exercise in healthy older adult men and women...
May 4, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29794620/cleveland-clinic-postural-stability-index-norms-for-the-balance-error-scoring-system
#18
Susan M Linder, Sarah J Ozinga, Mandy Miller Koop, Tanujit Dey, Richard Figler, Jason Cruickshank, Jay L Alberts
INTRODUCTION: Despite the widespread utilization of the Balance Error Scoring System (BESS) in the evaluation of concussion, it has been criticized for its error-based scoring that is susceptible to floor and ceiling effects and substantial inter-rater variability. A biomechanical outcome, Cleveland Clinic-Postural Stability Index (CC-PSI), has been developed as an alternative to subjective BESS scoring. The CC-PSI utilizes inertial sensor data within a mobile device to provide an objective measure of postural sway during the BESS...
May 3, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29781921/exercise-periodization-over-the-year-improves-metabolic-syndrome-and-medication-use
#19
Felix Morales-Palomo, Miguel Ramirez-Jimenez, Juan Fernando Ortega, Ricardo Mora-Rodriguez
PURPOSE: We aimed to determine if yearly repeated exercise training reduces metabolic syndrome (MetS) and the use of medicines to control MetS components. METHODS: Fifty five MetS individuals were randomized into a TRAIN group that underwent two yearly programs of 16-week of high intensity interval training (HIIT) or a non-exercising CONT group. We measured the evolution of all five MetS components, cardiorespiratory fitness (CRF; assessed by VO2PEAK) and medicine use, at baseline (0 months), mid (12 months) and end-point (24 months)...
May 2, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29771822/pulse-oximetry-and-arterial-oxygen-saturation-during-cardiopulmonary-exercise-testing
#20
Mona Ascha, Anirban Bhattacharyya, Jose A Ramos, Adriano R Tonelli
INTRODUCTION/PURPOSE: Peripheral capillary oxygen saturation (SpO2) is used as surrogate for arterial blood oxygen saturation. We studied the degree of discrepancy between SpO2 and arterial oxygen (SaO2) and identified parameters that may explain this difference. METHODS: We included patients who underwent cardiopulmonary exercise testing (CPET) at Cleveland Clinic. Pulse oximeters with forehead probes measured SpO2 and arterial blood gas (ABG) samples provided the SaO2 both at rest and peak exercise...
April 30, 2018: Medicine and Science in Sports and Exercise
journal
journal
20196
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"