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https://www.readbyqxmd.com/read/28343364/comparison-between-the-effect-of-6-weeks-of-morning-or-evening-aerobic-exercise-on-appetite-and-anthropometric-indices-a-randomized-controlled-trial
#1
Z Alizadeh, S Younespour, M Rajabian Tabesh, S Haghravan
Several studies have shown that exercise is directly related to creating negative energy balance and changes in appetite. However, few studies have examined the effect of exercise time during the day on these factors. The aim of the present study was to demonstrate the effect of 6 weeks of morning and evening aerobic exercise on appetite and anthropometric indices. A total of 48 overweight females were recruited to this clinical trial. By the time of exercise, they were divided into two groups (morning or evening) and performed 6 weeks of exercise with a target heart rate on the ventilatory threshold...
March 26, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28340292/combined-spiroergometry-and-31-p-mrs-of-human-calf-muscle-during-high-intensity-exercise
#2
K Moll, A Gussew, C Hein, N Stutzig, J R Reichenbach
Simultaneous measurements of pulmonary oxygen consumption (VO2 ), carbon dioxide exhalation (VCO2 ) and phosphorus magnetic resonance spectroscopy ((31) P-MRS) are valuable in physiological studies to evaluate muscle metabolism during specific loads. Therefore, the aim of this study was to adapt a commercially available spirometric device to enable measurements of VO2 and VCO2 whilst simultaneously performing (31) P-MRS at 3 T. Volunteers performed intense plantar flexion of their right calf muscle inside the MR scanner against a pneumatic MR-compatible pedal ergometer...
March 24, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28339438/the-role-of-autonomic-function-in-exercise-induced-endogenous-analgesia-a-case-control-study-in-myalgic-encephalomyelitis-chronic-fatigue-syndrome-and-healthy-people
#3
Jessica Van Oosterwijck, Uros Marusic, Inge De Wandele, Lorna Paul, Mira Meeus, Greta Moorkens, Luc Lambrecht, Lieven Danneels, Jo Nijs
BACKGROUND: Patients with myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS) are unable to activate brain-orchestrated endogenous analgesia (or descending inhibition) in response to exercise. This physiological impairment is currently regarded as one factor explaining post-exertional malaise in these patients. Autonomic dysfunction is also a feature of ME/CFS. OBJECTIVES: This study aims to examine the role of the autonomic nervous system in exercise-induced analgesia in healthy people and those with ME/CFS, by studying the recovery of autonomic parameters following aerobic exercise and the relation to changes in self-reported pain intensity...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28338369/dha-rich-fish-oil-increases-the-omega-3-index-and-lowers-the-oxygen-cost-of-physiologically-stressful-cycling-in-trained-individuals
#4
Lachlan Hingley, Michael J Macartney, Marc A Brown, Peter L McLennan, Gregory E Peoples
Dietary fish oil, providing docosahexaenoic acid (DHA) modulates oxygen consumption and fatigue in animal models. However, in humans predominately supplemented with high eicosapentaenoic acid (EPA), there is no evidence of endurance performance enhancement. Therefore, this study examined if DHA-rich fish oil could improve repeated bouts of physiologically stressful cycling and a subsequent time trial in a state of fatigue. Twenty-six trained males took part in a double-blind study and were supplemented with either 2x1g/day soy oil (Control) or DHA-rich tuna fish oil (Nu-Mega) (FO) (560mg DHA / 140mg eicosapentaenoic acid (EPA)) for eight weeks...
March 24, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28338363/decrement-in-professional-cyclists-performance-after-a-grand-tour
#5
Jose A Rodríguez-Marroyo, José G Villa, Raúl Pernía, Carl Foster
PURPOSE: The aim of this study was to analyze professional cyclists' performance decline after, and the exercise demands during, a Grand Tour. METHOD: Seven professional cyclists performed two incremental exercise tests, 1-week before and the day after the Vuelta España. During the race the exercise demands were analyzed on the basis of the HR. Three intensity zones were established according to reference HR values corresponding to the ventilatory (VT) and respiratory compensation (RCT) thresholds determined during the pre-race test...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28337890/beneficial-effects-of-protein-hydrolysates-in-exercise-and-sports-nutrition
#6
J Yuan, B Jiang, K Li, W Shen, J L Tang
Protein hydrolysates (PH) are rich sources of proteins that supply the need of exercising muscles. PHs are enriched in di- and tripeptides and are better than free amino acids or intact proteins when muscle anabolic effect is considered. Digestion, absorption and muscle uptake of amino acids are faster and more efficient when PH is ingested in comparison to the respective intact protein. PHs not only enhance endurance in high intensity exercise regimen, but also help in faster post-exercise recovery of muscle by promoting glycogen synthesis, although the latter effect requires more convincing evidence...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28336535/the-effects-of-short-work-versus-longer-work-periods-within-intermittent-exercise-on-v%C3%AC-o2p-kinetics-muscle-deoxygenation-and-energy-system-contribution
#7
Michael Christopher McCrudden, Daniel A Keir, Glen R Belfry
We examined the effects of inserting 3 s recovery periods during high-intensity cycling exercise at 25 s and 10 s intervals on pulmonary oxygen uptake (V̇O2p), muscle deoxygenation (HHb), associated kinetics (τ), and energy system contributions. Eleven men (24±3 years) completed two trials of three cycling protocols: an 8 min continuous protocol (CONT) and two, 8 min intermittent exercise protocols with work-to-rest periods of 25 s-to-3 s (25INT) and 10 s-to-3 s (10INT). Each protocol began with a step-transition from a 20 W baseline to a power output (PO) of 60% between lactate threshold and maximal V̇O2p (Δ60)...
March 23, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28336024/postoperative-pain-self-management-behavior-in-patients-who-underwent-total-knee-or-hip-arthroplasty
#8
Ning-Ning Zhu, Pei-Pei Xu, Ting-Ting Lei, Ting Sun, Sally Wai-Chi Chan
The self-management of acute postoperative pain is not well researched. This cross-sectional study investigates postoperative pain and pain self-management behavior. We recruited 127 patients who underwent total knee or total hip arthroplasty in an acute care hospital. We measured postoperative pain intensity and pain self-management behavior for three postoperative days. The results showed that the participants experienced mild and moderate pain intensity and perceived moderate to severe pain interference, which influenced their mood, sleep patterns, ability to walk, and performance of general activities and rehabilitation exercises...
April 2017: AORN Journal
https://www.readbyqxmd.com/read/28332171/sport-and-male-sexuality
#9
REVIEW
P Sgrò, L Di Luigi
The relationships between sport and sexuality in males are of great social and clinical interest, because of sports and motor activities that highly promote social and sexual relationships. Even if few literature exist, two main questions should be taken into account: whether and how physical exercise and sport positively or negatively influence sexual health and behavior and/or whether and how sexual behavior may affect a sub-sequent sport performance. Physical exercise and sport per se can influence, positively or negatively, the hypothalamic-pituitary-testicular axis function and, consequently, the individual's reproductive and/or sexual health...
March 22, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28332113/the-critical-power-concept-applications-to-sports-performance-with-a-focus-on-intermittent-high-intensity-exercise
#10
REVIEW
Andrew M Jones, Anni Vanhatalo
The curvilinear relationship between power output and the time for which it can be sustained is a fundamental and well-known feature of high-intensity exercise performance. This relationship 'levels off' at a 'critical power' (CP) that separates power outputs that can be sustained with stable values of, for example, muscle phosphocreatine, blood lactate, and pulmonary oxygen uptake ([Formula: see text]), from power outputs where these variables change continuously with time until their respective minimum and maximum values are reached and exercise intolerance occurs...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28332110/minimizing-injury-and-maximizing-return-to-play-lessons-from-engineered-ligaments
#11
REVIEW
Keith Baar
Musculoskeletal injuries account for more than 70% of time away from sports. One of the reasons for the high number of injuries and long return to play is that we have only a very basic understanding of how our training alters tendon and ligament (sinew) structure and function. Sinews are highly dense tissues that are difficult to characterize both in vivo and in vitro. Recently, engineered ligaments have been developed in vitro using cells from human anterior cruciate ligaments or hamstring tendons. These three-dimensional tissues can be grown in a laboratory, treated with agents thought to affect sinew physiology, and then mechanically tested to determine their function...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28332025/endurance-aerobic-high-intensity-and-repeated-sprint-cycling-performance-is-unaffected-by-normobaric-live-high-train-low-a-double-blind-placebo-controlled-cross-over-study
#12
Jacob Bejder, Andreas Breenfeldt Andersen, Rie Buchardt, Tanja Hultengren Larsson, Niels Vidiendal Olsen, Nikolai Baastrup Nordsborg
The aim was to investigate whether 6 weeks of normobaric "Live High-Train Low" (LHTL) using altitude tents affect highly trained athletes incremental peak power, 26-km time-trial cycling performance, 3-min all-out performance, and 30-s repeated sprint ability. In a double-blinded, placebo-controlled cross-over design, seven highly trained triathletes were exposed to 6 weeks of normobaric hypoxia (LHTL) and normoxia (placebo) for 8 h/day. LHTL exposure consisted of 2 weeks at 2500 m, 2 weeks at 3000 m, and 2 weeks at 3500 m...
March 22, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28330504/competitive-and-cooperative-arm-rehabilitation-games-played-by-a-patient-and-unimpaired-person-effects-on-motivation-and-exercise-intensity
#13
Maja Goršič, Imre Cikajlo, Domen Novak
BACKGROUND: People with chronic arm impairment should exercise intensely to regain their abilities, but frequently lack motivation, leading to poor rehabilitation outcome. One promising way to increase motivation is through interpersonal rehabilitation games, which allow patients to compete or cooperate together with other people. However, such games have mainly been evaluated with unimpaired subjects, and little is known about how they affect motivation and exercise intensity in people with chronic arm impairment...
March 23, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28329753/benefits-of-high-intensity-exercise-training-to-patients-with-chronic-obstructive-pulmonary-disease-a-controlled-study
#14
Tobias Boeselt, Christoph Nell, Lea Lütteken, Katharina Kehr, Janine Koepke, Sandra Apelt, Martina Veith, Björn Beutel, Marc Spielmanns, Timm Greulich, Claus F Vogelmeier, Klaus Kenn, Sabina Janciauskiene, Peter Alter, A Rembert Koczulla
BACKGROUND: Various exercise training programs are used for patients with chronic obstructive pulmonary disease (COPD) of different severity. OBJECTIVES: To investigate the impact of individualized high-intensity training on exercise capacity with COPD. METHODS: A total of 49 patients agreed to participate. Of these, 31 were assigned to the training group and 18 served as controls. The training group exercised twice a week for 90 min with consecutively increasing loads...
March 23, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28328719/predicting-the-maximum-dynamic-strength-in-bench-press-the-high-precision-of-the-bar-velocity-approach
#15
Irineu Loturco, Ronaldo Kobal, José E Moraes, Katia Kitamura, César C Cal Abad, Lucas A Pereira, Fábio Y Nakamura
Loturco, I, Kobal, R, Moraes, JE, Kitamura, K, Cal Abad, CC, Pereira, LA, and Nakamura, FY. Predicting the maximum dynamic strength in bench press: the high precision of the bar velocity approach. J Strength Cond Res 31(4): 1127-1131, 2017-The aim of this study was to determine the force-velocity relationship and test the possibility of determining the 1 repetition maximum (1RM) in "free weight" and Smith machine bench presses. Thirty-six male top-level athletes from 3 different sports were submitted to a standardized 1RM bench press assessment (free weight or Smith machine, in randomized order), following standard procedures encompassing lifts performed at 40-100% of 1RM...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28327503/beetroot-juice-supplementation-improves-high-intensity-intermittent-type-exercise-performance-in-trained-soccer-players
#16
Jean Nyakayiru, Kristin L Jonvik, Jorn Trommelen, Philippe J M Pinckaers, Joan M Senden, Luc J C van Loon, Lex B Verdijk
It has been shown that nitrate supplementation can enhance endurance exercise performance. Recent work suggests that nitrate ingestion can also increase intermittent type exercise performance in recreational athletes. We hypothesized that six days of nitrate supplementation can improve high-intensity intermittent type exercise performance in trained soccer players. Thirty-two male soccer players (age: 23 ± 1 years, height: 181 ± 1 m, weight: 77 ± 1 kg, playing experience: 15.2 ± 0.5 years, playing in the first team of a 2nd or 3rd Dutch amateur league club) participated in this randomized, double-blind cross-over study...
March 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28326352/aging-lifestyle-factors-hormones-and-bone-health-in-singaporean-men
#17
Victor Hng Hang Goh, William George Hart
PURPOSE: The present study examined how age, bodyweight, body fat, regular exercise and some endocrine factors are associated with osteoporosis, spine bone mineral density (Sbmd) and femoral neck bone mineral density (Fnbmd) in Singaporean men. METHODS: Body composition and bone scans of lumbar spine at L2-L4 and hip were carried out with duel-energy X-ray absorptiometry (DXA). Anthropometric parameters were measured and demographic data, medical history and exercise schedule were collected via a questionnaire...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28325109/feasibility-and-effects-of-a-combined-adjuvant-high-intensity-interval-strength-training-in-breast-cancer-patients-a-single-center-pilot-study
#18
Sebastian Viktor Waldemar Schulz, Roman Laszlo, Stephanie Otto, Dmytro Prokopchuk, Uwe Schumann, Florian Ebner, Jens Huober, Jürgen Michael Steinacker
PURPOSE: To evaluate feasibility of an exercise intervention consisting of high-intensity interval endurance and strength training in breast cancer patients. METHODS: Twenty-six women with nonmetastatic breast cancer were consecutively assigned to the exercise intervention- (n= 15, mean age 51.9 ± 9.8 years) and the control group (n = 11, mean age 56.9 ± 7.0 years). Cardiopulmonary exercise testing that included lactate sampling, one-repetition maximum tests and a HADS-D questionnaire were used to monitor patients both before and after a supervised six weeks period of either combined high-intensity interval endurance and strength training (intervention group, twice a week) or leisure training (control group)...
March 21, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28321639/brain-oxygenation-declines-in-elite-kenyan-runners-during-a-maximal-interval-training-session
#19
Jordan Santos-Concejero, F Billaut, L Grobler, J Oliván, T D Noakes, R Tucker
PURPOSE: The purpose of this study was to characterise the cerebral oxygenation (Cox) response during a high-intensity interval training session in Kenyan runners, and to examine any relationship with running performance. METHODS: 15 Kenyan runners completed a 5-km time trial (TT) and a Fatigue Training Test on a treadmill (repeated running bouts of 1-km at a pace 5% faster than their mean 5-km TT pace with a 30-s recovery until exhaustion). Changes in Cox were monitored via near-infrared spectroscopy through concentration changes in oxy- and deoxy-haemoglobin (Δ[O2Hb] and Δ[HHb]), tissue oxygenation index (TOI), and total hemoglobin index (nTHI)...
March 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28319589/exercise-improves-v-combining-dot-above-o-2max-and-body-composition-in-adt-treated-prostate-cancer-patients
#20
Bradley A Wall, Daniel A Galvão, Naeem Fatehee, Dennis R Taaffe, Nigel Spry, David Joseph, Jeffrey J Hebert, Robert U Newton
INTRODUCTION: Prostate cancer is the most common cancer in men and patients treated with androgen deprivation therapy (ADT) experience unfavourbale changes in body composition and associated metabolic complications, which can increase the risk of cardiovascular disease. We examined the effect of a 6-month program of aerobic and resistance exercise aimed at improving body composition and cardiorespiratory health in this population. METHODS: Ninety-seven men (43-90 years) with localized prostate cancer receiving ADT were randomized to either exercise (EX, n=50) or usual care (CON, n=47)...
March 18, 2017: Medicine and Science in Sports and Exercise
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