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The impact of a vestibular-stimulating exercise regimen on postural stability in women over 60
Conclusion Exercises stimulating the vestibular organ, such as those described herein, should be a part of efforts to improve balance in older people. (Source: Journal of Exercise Science and Fitness)
Source: Journal of Exercise Science and Fitness - September 2, 2015 Category: Sports Medicine Source Type: research

Muscle activation during push-ups performed under stable and unstable conditions
Conclusion Not all unstable devices enhance muscle activation compared to traditional push-ups. (Source: Journal of Exercise Science and Fitness)
Source: Journal of Exercise Science and Fitness - September 2, 2015 Category: Sports Medicine Source Type: research

Unilateral intramuscular needling can improve ankle dorsiflexor strength and muscle activation in both legs
Conclusion It was concluded that both unilateral manual and electric needling caused significant bilateral strength gain, and this effect was not specific to the selected acupoints or electric stimulation. The strength gain was sustained for at least 3 weeks after the 8-week intervention. (Source: Journal of Exercise Science and Fitness)
Source: Journal of Exercise Science and Fitness - September 1, 2015 Category: Sports Medicine Source Type: research

Comparisons of energy cost and economical walking speed at various gradients in healthy, active younger and older adults
Conclusion The age-related alteration of the C w –v relationship depends on the gradient, and its related factors were different between age groups. (Source: Journal of Exercise Science and Fitness)
Source: Journal of Exercise Science and Fitness - August 26, 2015 Category: Sports Medicine Source Type: research

Predictors of increase in physical activity during a 6-month follow-up period among overweight and physically inactive healthy young adults
Conclusion A strong sense of meaningfulness and better recovery from stress predict an increase in PA among physically inactive and overweight young adults. Therefore, participants with a low sense of meaningfulness and low recovery from stress may require support from other interventions to be able to increase their PA. (Source: Journal of Exercise Science and Fitness)
Source: Journal of Exercise Science and Fitness - August 15, 2015 Category: Sports Medicine Source Type: research

Microcirculatory effects of L-arginine during acute anaerobic exercise in healthy men: A pilot study
Conclusion Our findings show that supplementation with L-arginine may cause additional effects on the acute anaerobic exercise-induced transient increase in capillary density in the sublingual mucosa of untrained men. (Source: Journal of Exercise Science and Fitness)
Source: Journal of Exercise Science and Fitness - July 23, 2015 Category: Sports Medicine Source Type: research

Pedometer-determined physical activity patterns in a segmented school day among Hong Kong primary school children
Conclusion The findings provide a better understanding of PA patterns and the contribution of the distinct segments within a school day to children's PA. This information may assist in developing more effective, appropriate, and timely school-based PA interventions for children in Hong Kong. (Source: Journal of Exercise Science and Fitness)
Source: Journal of Exercise Science and Fitness - May 5, 2015 Category: Sports Medicine Source Type: research

Tracking energy balance in adolescents: Levels of compliance, energy flux, and learning
This study examined adolescents' experience and perception of using an objective self-monitoring tool (SenseWear armband; SWA) and a portable diet journal to track EB for 7 days. Forty five 6th grade students in a midwestern state of the United States [Caucasian: n = 34, 76%; age: 11.7 ± 1.8 years; body mass index (BMI): 20.84 ± 3.94] participated in the study. The SWA, diet journal, and semistructured individual interview were used to measure energy expenditure (EE) and physical activity (PA), energy intake (EI), and perception of the experience, respectively. Mixed methods were used to analyze quantitative and qu...
Source: Journal of Exercise Science and Fitness - March 6, 2015 Category: Sports Medicine Source Type: research

Heel–toe running: A new look at the influence of foot strike pattern on impact force
Publication date: Available online 16 February 2015 Source:Journal of Exercise Science & Fitness Author(s): John A. Mercer , Sarah Horsch It is important to understand the factors that influence the impact force observed during running, since the impact force is likely to be related to overuse injuries. The purpose of this study was to compare the impact force during running when participants were instructed to use different foot strike patterns: obvious heel strike (Obvious-HS), subtle heel strike (Subtle-HS), midfoot strike (Mid-FS), and fore foot strike (Fore-FS) patterns. Participants (n = 10, 25 ± 5...
Source: Journal of Exercise Science and Fitness - February 18, 2015 Category: Sports Medicine Source Type: research

Acute effects of high- and low-intensity exercise bouts on leukocyte counts
Publication date: Available online 7 February 2015 Source:Journal of Exercise Science & Fitness Author(s): Pedro Rogério Da Silva Neves , Thiago Ricardo Dos Santos Tenório , Tatiana Acioli Lins , Maria Tereza Cartaxo Muniz , Tânia Cristina Pithon-Curi , João Paulo Botero , Wagner Luiz Do Prado It is widely accepted that physical exercise may bring about changes in the immune system. Even acute bouts of exercise can alter the number and function of leukocytes, but the degree of white blood cell trafficking depends on the intensity and duration of exercise. The aim of this study was to analyze the acut...
Source: Journal of Exercise Science and Fitness - February 8, 2015 Category: Sports Medicine Source Type: research

Exercise therapy for human immunodeficiency virus/AIDS patients: Guidelines for clinical exercise therapists
Publication date: Available online 29 January 2015 Source:Journal of Exercise Science & Fitness Author(s): Jeanne M. Grace , Stuart J. Semple , Susan Combrink Human immunodeficiency virus (HIV) has infected > 60 million people since its discovery and 30 million people have died since the pandemic began. Antiretroviral therapy has transformed HIV infection from an acute to a chronic disease, increasing life expectancy but also adding to the potential side effects associated with drug therapy and the comorbidity accompanying longevity. Exercise can play a valuable role in the management of HIV/AIDS pati...
Source: Journal of Exercise Science and Fitness - January 30, 2015 Category: Sports Medicine Source Type: research

Validity of the SenseWear armband step count measure during controlled and free-living conditions
Publication date: Available online 29 January 2015 Source:Journal of Exercise Science & Fitness Author(s): Joey Allen Lee , Kelly Rian Laurson Advances in technology continue to provide numerous options for physical activity assessment. These advances necessitate evaluation of the validity of newly developed activity monitors being used in clinical and research settings. The purpose of this study was to validate the SenseWear Pro3 Armband (SWA) step counts during treadmill walking and free-living conditions. Study 1 observed 39 individuals (17 males, 22 females) wearing an SWA and a Yamax Digiwalker SW-701 pe...
Source: Journal of Exercise Science and Fitness - January 30, 2015 Category: Sports Medicine Source Type: research

Influence of sex on cytokines, heat shock protein and oxidative stress markers in response to an acute total body resistance exercise protocol
This study evaluated the influence of sex on changes in cytokines, heat shock proteins (HSPs), and oxidative stress in response to a single bout of total body resistance exercise. Sixteen healthy volunteers (8 men and 8 women), active and recreationally trained in resistance exercise, were subjected to a single bout of total body resistance exercise (3 × 8–10 repetition maximum, 10 exercises, rests periods of 90–120 seconds). Serum creatine kinase (CK), interleukin (IL)-6, IL-10, tumor necrosis factor-α, HSP60, HSP70, thiobarbituric acid reactive substance, and reduced glutathione were assessed at pre-protocol, an...
Source: Journal of Exercise Science and Fitness - January 30, 2015 Category: Sports Medicine Source Type: research

Effects of protein addition to carbohydrate–electrolyte solutions on postexercise rehydration
This study aimed to examine the effects of the addition of whey or casein protein, the two major proteins in milk, to carbohydrate–electrolyte (CE) solutions on postexercise rehydration. Ten young men aged 20.7 ± 1.4 years with an average VO2max of 60.7 mL/kg/min ran for 60 minutes at 65% VO2max on three occasions followed by 4 hours recovery. During recovery, the participants consumed either CE solution with 66 g/L carbohydrate (CHO), or CE plus whey protein solution (CW trial, 44 g/L CHO, 22 g/L whey), or CE plus casein protein solution (CC trial, 44 g/L CHO, 22 g/L casein); the solutions were matched for ener...
Source: Journal of Exercise Science and Fitness - January 29, 2015 Category: Sports Medicine Source Type: research

Effects of a training program at the crossover point on the cluster of metabolic abnormalities and cardiovascular risk factors
Publication date: Available online 18 November 2014 Source:Journal of Exercise Science & Fitness Author(s): Jérémy B. Coquart , Guillaume Boitel , Benoît Borel , Régis Matran , Claire Mounier-Vehier , Murielle Garcin The present study examined the effects of a training program at a special exercise intensity—the crossover point of substrate utilization (COP)—on the metabolic abnormalities and cardiovascular risk factors in obese women with metabolic syndrome (MetS). Eighteen postmenopausal obese women with MetS (age, 54.8 ± 8.4 years; height, 160 ± 6 cm) followed a 12-week training program ...
Source: Journal of Exercise Science and Fitness - November 20, 2014 Category: Sports Medicine Source Type: research