Change in Sedentary Time, Physical Activity, Bodyweight, and HbA1c in High-Risk Adults
This study aimed to quantify the associations between changes in body weight, sedentary time, and moderate to vigorous physical activity (MVPA) time with HbA1c levels for a 3-yr period among adults at high risk of type 2 diabetes. Methods: This study reports baseline and 3-yr follow-up data from the Walking Away from Type 2 Diabetes study. ActiGraph GT3X accelerometers captured sedentary time and MVPA. Linear regression examined the independent associations of changes in sedentary time, MVPA, and body weight with HbA1c between baseline and 3-yr follow-up. Results: The sample composed of 489 participants (mean age = 64.2 ...
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Epidemiology Source Type: research

Mortality Risk Reductions from Substituting Screen Time by Discretionary Activities
Conclusion: Substantial public health benefits could be gained by replacing small amounts of screen time with daily life activities and structured exercise. Daily life activities may provide feasible screen time alternatives, if structured exercise is initially too ambitious. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Epidemiology Source Type: research

Visual Motion Processing Subserves Faster Visuomotor Reaction in Badminton Players
Introduction: Athletes participating in ball or racquet sports have to respond to visual stimuli under critical time pressure. Previous studies used visual contrast stimuli to determine visual perception and visuomotor reaction in athletes and nonathletes; however, ball and racquet sports are characterized by motion rather than contrast visual cues. Because visual contrast and motion signals are processed in different cortical regions, this study aimed to determine differences in perception and processing of visual motion between athletes and nonathletes. Methods: Twenty-five skilled badminton players and 28 age-matched n...
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Basic Science Source Type: research

Bracing of the Reconstructed and Osteoarthritic Knee during High Dynamic Load Tasks
Purpose: Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics is frequently reported in individuals with knee osteoarthritis after anterior cruciate ligament reconstruction (ACLR). The aim of this study was to evaluate changes in knee biomechanics produced by an adjusted and unadjusted varus knee brace during high dynamic loading activities in individuals with lateral knee osteoarthritis after ACLR and valgus malalignment. Methods: Nineteen participants who had undergone ACLR 5 to 20 yr previously and had symptomatic and radiographic lateral knee osteoarthritis with valgus malalignment were assesse...
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Clinical Sciences Source Type: research

Inflammation Relates to Resistance Training–induced Hypertrophy in Elderly Patients
Purpose: Aging is associated with a gradual loss of muscle mass, which some have suggested to be accelerated by short periods of muscle disuse due to medical illness. We investigated the effect of hospitalization on skeletal muscle mass in acutely ill geriatric patients with focus on the relationship between systemic inflammatory marker C-reactive protein (CRP) and changes in muscle mass, as well as the influence of resistance training upon muscle mass. Method: Unilateral leg press resistance exercise was conducted daily during the hospital period. Outcomes included changes in whole body and regional lean mass, maximal vo...
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Clinical Sciences Source Type: research

ASC Methylation and Interleukin-1β Are Associated with Aerobic Capacity in Heart Failure
Conclusions: Mean percent ASC methylation and plasma IL-1β levels are associated with clinically meaningful differences in V˙O2peak in persons with HF. Inflammasome activation may play a mechanistic role in determining aerobic capacity. ASC methylation is a potentially modifiable mechanism for reducing the inflammatory response, thereby improving aerobic capacity in HF. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Clinical Sciences Source Type: research

Cortical and Physical Function after Mild Traumatic Brain Injury
Purpose: The aim of this study was to prospectively examine the association between intracortical inhibition and functional recovery after mild traumatic brain injury (mTBI). Methods: Twenty individuals with mTBI and 20 matched control participants were assessed using transcranial magnetic stimulation, the Attentional Network Test, and gait analysis. Hierarchical linear modeling was used to longitudinally examine potential differences between groups and relationships in the pattern of recovery in cortical silent period (CSP) duration, cognitive reaction time, and single- and dual-task walking speeds across five testing ti...
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Clinical Sciences Source Type: research

Sedentary Behavior, Cadence, and Physical Activity Outcomes after Knee Arthroplasty
This study comprehensively examined sedentary behavior and physical activity patterns in people with severe knee osteoarthritis awaiting total knee arthroplasty (TKA) and in individuals after TKA. Methods: Preoperative (n = 32, mean ± SD = 69.9 ± 5.3 yr) and 1-yr postoperative participants with TKA (n = 38, 67.9 ± 7.3 yr) wore ActiGraph GT3X+ activity monitors for 6.8 ± 0.6 d. Total sedentary time, time in long sedentary bouts (≥30 min), and physical activity outcomes (steps, time in moderate-to-vigorous physical activity [MVPA], cadence) were examined. Results: There were no differences be...
Source: Medicine and Science in Sports and Exercise - May 17, 2017 Category: Sports Medicine Tags: Clinical Sciences Source Type: research

Preventing Sudden Death in Sport and Physical Activity, 2nd Edition
No abstract available (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Book Reviews Source Type: research

Endurance Sports Medicine: A Clinical Guide
No abstract available (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Book Reviews Source Type: research

Psychological Issues Related to Illness and Injury in Athletes and the Team Physician: A Consensus Statement—2016 Update
No abstract available (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Team Physician Consensus Statement Source Type: research

The Dangers of Estimating V˙O2max Using Linear, Nonexercise Prediction Models
Conclusions: Adopting allometric models will provide more accurate predictions of V˙O2max (mL·kg−1·min−1) using plausible, biologically sound, and interpretable models. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Methodological Advances Source Type: research

Manipulation of Muscle Creatine and Glycogen Changes Dual X-ray Absorptiometry Estimates of Body Composition
Conclusions: Changes in muscle metabolites and water content alter DXA estimates of lean mass during periods in which minimal change in muscle protein mass is likely. This information needs to be considered in interpreting the results of DXA-derived estimates of body composition in athletes. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Methodological Advances Source Type: research

The activPALTM Accurately Classifies Activity Intensity Categories in Healthy Adults
Conclusion: The AP can be used to accurately capture individualized estimates of active and sedentary behavior variables in free-living settings. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Effect of Different Osmolalities, CHO Types, and [CHO] on Gastric Emptying in Humans
This study investigated the effect of beverage osmolalities, carbohydrate (CHO) type, and CHO concentration on gastric emptying in euhydrated subjects at rest. Methods: The gastric emptying of water (W), four glucose beverages (2%, 4%, 6%, and 8% glucose: 2G, 4G, 6G, and 8G), and four sucrose beverages (2%, 4%, 6%, and 8% sucrose: 2S, 4S, 6S, and 8S) were determined in eight healthy subjects using the modified George double-sampling technique. Subjects ingested a beverage (7 mL·kg−1 body weight) containing 25 ppm phenol red as quickly as possible (≤1.0 min), and subsequent gastric and blood samples were co...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Effect of Load Carriage on Upper Limb Performance
This study aimed to evaluate the changes in the upper extremity hemodynamic and neural function and to assess how they are associated with brachial plexus tissue deformation during heavy load carriage. Methods: Ten young healthy adults carried for 45 min a backpack load (40% of their body weight) while standing freely, followed by 15 min of recovery (unloaded). Index-finger microvascular flow and sensorimotor function were measured before and after carrying the load, and after recovery. The following sensorimotor functions were measured: light touch thresholds by the index finger and little finger, forearm thermal sensati...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Heat Strain Is Exacerbated on the Second of Consecutive Days of Fire Suppression
Purpose: We tested the hypothesis that physiological and perceptual heat strain is exacerbated on the second of back-to-back days of fire suppression work despite evidence of full recovery. Methods: Twenty-six career and volunteer firefighters (age = 31 ± 8 yr) completed 20 min of near maximal fire suppression work on consecutive days. Dependent variables were core temperature, heart rate, perceived exertion, and thermal sensation, which were measured before and after fire suppression. Urine specific gravity and body mass were also measured upon arrival at the fire academy as an index of hydration and recovery betw...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

In-Play Cooling Interventions for Simulated Match-Play Tennis in Hot/Humid Conditions
This study aimed to assess the efficacy of different in-play cooling strategies for mitigating heat strain during simulated tennis match-play activity in a hot/humid environment representing the most extreme conditions during the US Open (36°C, 50% relative humidity). Methods: On three occasions, nine males completed an intermittent treadmill protocol with an exercise intensity and activity profile simulating a four-set tennis match, with 90-s breaks between odd-numbered games and 120-s breaks between sets, according to International Tennis Federation rules. During breaks, 1) the currently used cooling strategy—...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

The Effects of Exercise Dose on Stereotypical Behavior in Children with Autism
This study sought to quantify the acute effect of exercise and to assess the influence of duration and intensity on the frequency of stereotypic behaviors in children with ASD. Methods: Participants in this study (N = 7, Mage = 13.0 ± 1.4 yr, Mheight = 1.64 ± 0.01 m, and Mweight = 60.1 ± 13.7 kg) underwent five separate days of treatments, including a control condition (C), a low-intensity 10-min condition (10L), a high-intensity 10-min condition (10H), a low-intensity 20-min condition (20L), and a high-intensity 20-min condition (20H) in which intensity was quantified using HR as well as RPE. Before ...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Exercise-Induced Hypoalgesia Is Not Influenced by Physical Activity Type and Amount
Physical activity (PA), especially vigorous-intensity PA, has been shown to be related to pain sensitivity. The relationship among PA levels and PA types on endogenous pain inhibition after exercise, termed exercise-induced hypoalgesia (EIH), remains unclear. Purpose: This studied examined the EIH response to pressure stimuli among college-age women of differing activity levels. Methods: Fifty women were tested. Pressure pain threshold (PPT) values were assessed before and immediately after isometric handgrip exercise to exhaustion in the right and left forearms. Participant's PA levels were assessed by wearing an accele...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Active Workstations Do Not Impair Executive Function in Young and Middle-Age Adults
Conclusions: These findings suggest that executive function performance remains relatively unaffected while walking on an active workstation, further supporting the use of treadmill workstations as an effective approach to increase physical activity and reduce sedentary time in the workplace. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Etiology and Recovery of Neuromuscular Fatigue after Simulated Soccer Match Play
Conclusion: Central processes contribute significantly to the neuromuscular fatigue experienced in the days after soccer match play, but the magnitude and slower recovery of peripheral fatigue indicates that it is the resolution of muscle function that primarily explains the recovery of neuromuscular fatigue after soccer match play. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Prevalence of Exercise-Induced Arterial Hypoxemia in Distance Runners at Sea Level
Purpose: It has been reported that ~50% of endurance-trained men demonstrate exercise-induced arterial hypoxemia (EIAH) during heavy exercise. However, this often-cited prevalence rate comes from a single study using a cohort of 25 highly trained men who completed maximal cycle ergometry. As arterial oxyhemoglobin saturation (SpO2) during maximal exercise is reported to be significantly lower during treadmill versus cycle ergometry in the same subjects, we hypothesized that the prevalence of EIAH would be greater than previously reported (and commonly referenced) in a larger cohort of highly endurance-trained men during ma...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Deriving a GPS Monitoring Time Recommendation for Physical Activity Studies of Adults
Conclusions: Twelve days of monitoring was found to reliably estimate minutes in both low and medium threshold MVPA as well as VPA bouts for many important built environment locations that can be targeted to increase PA at the population level. Minutes of PA in the home environment and commercial locations may be best assessed through other means given the lengthy estimated monitoring time required. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Epidemiology Source Type: research

Physical Activity, Sedentary Time, and Fatness in a Biethnic Sample of Young Children
Conclusions: High light-intensity PA appears to be beneficial for body composition in young South Asian and White British children, but higher-intensity PA is more advantageous. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Epidemiology Source Type: research

Daily Weather and Children's Physical Activity Patterns
Conclusions: This novel study focused on the influence of weather elements on intraindividual PA patterns in children. As weather influences cannot be controlled, knowledge of its effect on individual PA patterns may help in the design of future studies, interpretation of their results, and translation into PA promotion. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Epidemiology Source Type: research

Physical Activity and Adiposity-related Inflammation: The MESA
This study examined whether associations of physical activity and obesity-related inflammatory markers were independent of central adiposity. Methods: Between 2002 and 2005, 1970 participants from the Multi-Ethnic Study of Atherosclerosis completed detailed health history and physical activity questionnaires, underwent physical measurements including computed tomography to quantify abdominal visceral and subcutaneous fat, and measurements of adiponectin, leptin, interleukin-6, tumor necrosis factor-alpha, and resistin. Statistical analyses included analysis of covariance and multivariable-adjusted regression. Results: Th...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Epidemiology Source Type: research

β-Adrenergic Responsiveness in the Type 2 Diabetic Heart: Effects on Cardiac Reserve
This study aimed to determine the chronotopic and inotropic response of the type 2 diabetic heart to β-adrenergic stimulation. Methods: Eight people with uncomplicated T2D and seven matched controls performed a dual-energy x-ray absorptiometry scan and V˙O2peak test. Plasma catecholamines were determined at rest and during peak exercise. On a second visit, HR and left ventricular contractility were assessed using echocardiography during supine rest, parasympathetic blockade (atropine), and during incremental β-adrenergic stimulation (dobutamine). Results: V˙O2peak and HR reserve were lower in T2D (P (Source: ...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Basic Sciences Source Type: research

Twenty-four Weeks of β-Alanine Supplementation on Carnosine Content, Related Genes, and Exercise
Conclusions: Twenty-four weeks of BA supplementation increased muscle carnosine content and improved high-intensity cycling capacity. The downregulation of TauT suggests it plays an important role in muscle carnosine accumulation with BA supplementation, whereas the variability in changes in muscle carnosine content between individuals suggests that other determinants other than the availability of BA may also bear a major influence on muscle carnosine content. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Basic Sciences Source Type: research

Ibuprofen before Exercise Does Not Prevent Cortical Bone Adaptations to Training
This study aimed to determine whether nonsteroidal anti-inflammatory drug use before exercise prevents increases in bone structure and strength in response to weight-bearing exercise. Methods: Adult female Wistar rats (n = 43) were randomized to ibuprofen (IBU) or vehicle (VEH) and exercise (EX) or sedentary (SED) groups in a 2 × 2 (drug and activity) ANCOVA design with body weight as the covariate, and data are reported as mean ± SE. IBU drops (30 mg·kg−1 BW) or VEH (volume equivalent) were administered orally 1 h before the bout of exercise. Treadmill running occurred 5 d·wk−1 for ...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Basic Sciences Source Type: research

Exercise Training Reverses Extrapulmonary Impairments in Smoke-exposed Mice
Purpose: Cigarette smoking is the main risk factor for chronic obstructive pulmonary disease and emphysema. However, evidence on the extrapulmonary effects of smoke exposure that precede lung impairments remains unclear at present, as are data on nonpharmacological treatments such as exercise training. Methods: Three groups of mice, including control (n = 10), smoking (n = 10), and smoking with 6 wk of high-intensity interval treadmill running (n = 11), were exposed to 20 wk of fresh air or whole-body cigarette smoke. Exercise capacity (peak oxygen uptake) and lung destruction (histology) were subsequently measured, where...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Basic Sciences Source Type: research

Low-Force Muscle Activity Regulates Energy Expenditure after Spinal Cord Injury
This study aimed to determine the effects of low stimulation frequency (1 and 3 Hz) and stimulation intensity (50 and 100 mA) on energy expenditure in people with SCI. We also examined the relationship between body mass index and visceral adipose tissue on energy expenditure during low-frequency stimulation. Methods: Ten individuals with complete SCI underwent oxygen consumption monitoring during electrical activation of the quadriceps and hamstrings at 1 and 3 Hz and at 50 and 100 mA. We calculated the difference in energy expenditure between stimulation and rest and estimated the number of days that would be necessary t...
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Clinical Sciences Source Type: research

Coronary Artery Evaluation by Screening Echocardiogram in Intercollegiate Athletes
Conclusions: The origin and proximal course of the coronary arteries were readily and reliably observed in the majority of athletes, suggesting coronary artery evaluation should be included in athlete screening TTE protocols. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - April 15, 2017 Category: Sports Medicine Tags: Clinical Sciences Source Type: research

Orthopedic Biomechanics, 2nd Edition
No abstract available (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Book Reviews Source Type: research

Sports Psychiatry
No abstract available (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Book Reviews Source Type: research

Response
No abstract available (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Letters to the Editor-in-Chief Source Type: research

Yoga for Health: Considerations beyond Energy Cost and Isolated Asanas (Poses)
No abstract available (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Letters to the Editor-in-Chief Source Type: research

Achieving Equity in Physical Activity Participation: ACSM Experience and Next Steps
This article provides a conceptual overview of these four pathways of ACSM’s roadmap, an understanding of the challenges and advantages of implementing these components, and the organizational and economic benefits of achieving health equity. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Methodological Advances Source Type: research

A Murine Model of Robotic Training to Evaluate Skeletal Muscle Recovery after Injury
Conclusion: Our findings demonstrate the utility of our custom-designed robotic device for the quantitative assessment of skeletal muscle function in preclinical murine studies. Moreover, we demonstrate that this device may be used to apply varying levels of resistance longitudinally as a means manipulate physiological muscle responses. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Methodological Advances Source Type: research

Accuracy and Reliability of Assessing Lateral Compartmental Leg Composition Using Dual-Energy X-ray Absorptiometry
Conclusion: The results of this study suggest that DXA measures using lateral subject positioning and custom ROIs to assess upper leg total, fat, and lean masses are accurate and reliable compared with total-body frontal subject positioning. Future studies are needed to determine the clinical usefulness of lateral view measures regarding prevention or rehabilitation of sports- or age-related injury. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: SPECIAL COMMUNICATIONS: Methodological Advances Source Type: research

Impact of Acute Dietary Manipulations on DXA and BIA Body Composition Estimates
Conclusions: Acute food and fluid intake can artificially influence body composition estimates, regardless of macronutrient content. An overnight fast is likely sufficient preassessment dietary control for DXA and possibly sufficient for BIA. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Wrist Accelerometer Cut Points for Classifying Sedentary Behavior in Children
Conclusion: The most accurate SB ActiGraph (Kim) and GENEActiv (Schaefer) wrist cut points can be applied in children with similar confidence as the ActiGraph hip cut point (≤25 counts per 15 s), although activPAL3TM was generally more accurate. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Activity Recognition in Youth Using Single Accelerometer Placed at Wrist or Ankle
Conclusions: Previously available methodological approaches for activity classification in adults can be extended to youth data. Including youth data in the training phase and using features designed to capture information on the activity fragmentation of young participants allows a better fit of the methodological framework to the characteristics of activity in youth, improving its overall performance. The proposed algorithm differentiates ambulation from sedentary activities that involve gesturing in wrist data, such as that being collected in large surveillance studies. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Reliability and Validity of Ten Consumer Activity Trackers Depend on Walking Speed
Conclusion: Test–retest reliability and validity of activity trackers depends on walking speed. In general, consumer activity trackers perform better at an average and vigorous walking speed than at a slower walking speed. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Perceived Exertion during Exercise Is Associated with Children's Energy Intake
Purpose: To examine the individual-level factors that predict energy intake (EI) after imposed exercise (EX) and sedentary time (SED) in children. Methods: Healthy-weight children ages 9–12 yr (n = 20) reported to the laboratory for one baseline and two experimental visits (EX and SED) each separated by 1 wk in a randomized crossover design. Percent body fat, weight (kg), and height (m) were used to calculate fat-mass index (FM index) and fat-free mass index (FFM index; kg·m−2). On the EX day, children exercised at 70% estimated V˙O2peak for 30 min on a cycle ergometer, whereas cardiovascular responses...
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Effect of Exercise Intensity and Duration on Postexercise Executive Function
Conclusion: The present findings showed that postexercise EF improvement could be prolonged after MI exercise with a moderate duration compared with volume-matched LI exercise with a longer duration. In addition, MI exercise with a relatively long duration may slightly prolong the postexercise EF improvement. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Exercise versus Nonexercise Activity: E-diaries Unravel Distinct Effects on Mood
Introduction: The association between physical activity and mood is of major importance to increase physical activity as a prevention strategy for noncommunicable diseases and to improve mental health. Unfortunately, existing studies examining how physical activity and mood wax and wane within persons over time in everyday life do show ambiguous findings. Taking a closer look at these studies reveals that the aggregation levels differ tremendously. Whereas mood is conceptualized as a three-dimensional construct, physical activity is treated as a global construct not taking into account its distinct components like exercise...
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Long-Term Effects of Habitual Barefoot Running and Walking: A Systematic Review
Conclusions: Only limited or very limited evidence is found for long-term effects of HB locomotion regarding biomechanics or health-related outcomes. Moreover, no evidence exists for motor performance. Future research should include prospective study designs. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Gross Motor Skills and Cardiometabolic Risk in Children: A Mediation Analysis
Conclusion: There is a significant relationship between gross locomotor skills and cardiometabolic risk that is partially mediated through aerobic fitness in a sample of low-income children from the United States. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research

Training Strategies to Improve Muscle Power: Is Olympic-style Weightlifting Relevant?
Conclusions: MSPT was time-efficient and equally or more effective than FSPT training in improving vertical jumping and sprinting performance. OWL was generally ineffective and inferior to the two other interventions. (Source: Medicine and Science in Sports and Exercise)
Source: Medicine and Science in Sports and Exercise - March 20, 2017 Category: Sports Medicine Tags: Applied Sciences Source Type: research