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https://www.readbyqxmd.com/read/28451599/is-home-based-high-intensity-interval-training-cycling-feasible-and-safe-for-patients-with-knee-osteoarthritis-study-protocol-for-a-randomized-pilot-study
#1
Justin W L Keogh, Josephine Grigg, Christopher J Vertullo
BACKGROUND: Osteoarthritis (OA) is a degenerative joint disease affecting the knee joint of many middle-aged and older adults. As OA symptoms typically involve knee pain and stiffness, individuals with knee OA are often insufficiently physically active, have low levels of physical function, and are at increased risk of other comorbidities and reduced quality of life. While moderate-intensity continuous training (MICT) cycling is often recommended, little is known about the feasibility, safety, and benefits of high-intensity interval training (HIIT) cycling for this population, even though the feasibility, safety, and benefits of HIIT have been demonstrated in other chronic disease groups...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28445078/effects-of-high-intensity-interval-training-on-canoeing-performance
#2
Ming-Ta Yang, Mien-Mien Lee, Shu-Ching Hsu, Kuei-Hui Chan
The purpose of this study was to compare the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) utilizing a canoeing ergometer on endurance determinants, as well as aerobic and anaerobic performances among flat-water canoeists. Fourteen well-trained male flat-water canoeists were divided into an HIIT group or an MICT group. All subjects performed a continuous graded exercise test (GXT) and three fixed-distance (200, 500, and 1000 m) performance tests on a canoeing ergometer to determine canoeing economy, peak oxygen uptake (VO2peak), and power at VO2peak, and to calculate the critical velocity (CV) and anaerobic work capacity before and after the training programmes...
April 26, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28435687/an-evaluation-of-low-volume-high-intensity-intermittent-training-hiit-for-health-risk-reduction-in-overweight-and-obese-men
#3
Benjamin M Kelly, Soteris Xenophontos, James A King, Myra A Nimmo
ᅟ: Both sprint interval training (SIT) and high-intensity intermittent training (HIIT) have been described as time-efficient strategies for inducing favourable metabolic and cardiorespiratory adaptations in healthy and diseased participants. BACKGROUND: To date, little attention has been given to profiling the potential health benefits of HIIT or modified HIIT training within overweight and obese cohorts with particular focus on inflammation. Within this pilot trial, we tested the hypothesis that 6 sessions of HIIT performed over 2 weeks with 1-2 days' rest would improve aerobic capacity, glucose metabolism and inflammatory profile in an overweight and obese male cohort...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28431408/the-effects-of-exercise-modality-during-additional-high-intensity-interval-training-upon-aerobic-fitness-and-strength-in-powerlifting-and-strongman-athletes
#4
Patroklos Androulakis-Korakakis, Louis Langdown, Adam Lewis, James Fisher, Paulo Gentil, Antonio Paoli, James Steele
Powerlifters and strongman athletes have a necessity for optimal levels of muscular strength whilst maintaining sufficient aerobic capacity to perform and recover between events. HIIT has been popularized for its efficacy in improving both aerobic fitness and strength but never assessed within the aforementioned population group. The present study looked to compare the effect of exercise modality, e.g. a traditional aerobic mode (AM), and strength mode, (SM), during HIIT upon aerobic fitness and strength. Sixteen well resistance trained male participants, currently competing in powerlifting and strongman events, completed 8 weeks of approximately effort- and volume-matched HIIT in 2 groups: AM (cycling, n=8) and SM (resistance training, n=8)...
April 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28424870/high-intensity-interval-training-does-not-impair-strength-gains-in-response-to-resistance-training-in-premenopausal-women
#5
Paulo Gentil, Claudio Andre Barbosa de Lira, Suedi Gonçalves Cardoso Filho, Cauê Vazquez La Scala Teixeira, James Steele, James Fisher, Juliana Alves Carneiro, Mário Hebling Campos
PURPOSE: To compare the increases in upper- and lower-body muscle strength in premenopausal women performing resistance training (RT) alone or alongside concurrent high-intensity interval training (CT). METHODS: Sixteen women (26-40 years) were randomly assigned into two groups that performed either RT or CT. Both groups performed the same RT program; however, CT performed additional high-intensity interval training (HIIT) on a bicycle ergometer before RT. The study lasted 8 weeks and the participants were tested for ten repetition maximum (10RM) load in elbow flexion (barbell biceps curl) and knee extension exercises pre- and post-intervention...
April 19, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28420673/a-single-bout-of-high-intensity-interval-training-reduces-awareness-of-subsequent-hypoglycemia-in-patients-with-type-1-diabetes
#6
Hanne M Rooijackers, Evita C Wiegers, Marinette van der Graaf, Dick H Thijssen, Roy P C Kessels, Cees J Tack, Bastiaan E de Galan
High-intensity interval training (HIIT) gains increasing popularity in patients with diabetes. HIIT acutely increases plasma lactate levels. This may be important, since administration of lactate during hypoglycemia suppresses symptoms and counterregulation, whilst preserving cognitive function. We tested the hypothesis that HIIT acutely reduces awareness of hypoglycemia and attenuates hypoglycemia-induced cognitive dysfunction. In a randomized crossover trial, patients with type 1 diabetes and normal awareness of hypoglycemia (NAH), patients with impaired awareness of hypoglycemia (IAH), and healthy participants (n=10 per group) underwent a hyperinsulinemic-hypoglycemic (2...
April 18, 2017: Diabetes
https://www.readbyqxmd.com/read/28419206/short-term-preoperative-exercise-therapy-does-not-improve-long-term-outcome-after-lung-cancer-surgery-a-randomized-controlled-study%C3%A2
#7
Wolfram Karenovics, Marc Licker, Christoph Ellenberger, Michel Christodoulou, John Diaper, Chetna Bhatia, John Robert, Pierre-Olivier Bridevaux, Frédéric Triponez
OBJECTIVES: Poor aerobic fitness is a potential modifiable risk factor for long-term survival and quality of life in patients with lung cancer. This randomized trial evaluates the impact of adding rehabilitation (Rehab) with high-intensity interval training (HIIT) before lung cancer surgery to enhance cardiorespiratory fitness and improve long-term postoperative outcome. METHODS: Patients with operable lung cancer were randomly assigned to usual care (UC, n  = 77) or to intervention group (Rehab, n  = 74) that entailed HIIT that was implemented only preoperatively...
April 17, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28409397/the-effect-of-high-intensity-aerobic-interval-training-on-markers-of-systemic-inflammation-in-sedentary-populations
#8
Nicholas G Allen, Samuel M Higham, Amy E Mendham, Tegan E Kastelein, Penelope S Larsen, Rob Duffield
PURPOSE: This study examined the effects of high-intensity interval training (HIIT; 30 s sprint, 4-5 min passive recovery) and prolonged intermittent sprint training (PIST; 10 s sprint, 2-3 min moderate exercise) on the systemic inflammatory markers C-reactive protein (CRP) and tumor necrosis factor-α (TNF-α), aerobic capacity, and anthropometry in a middle-aged, sedentary population. METHODS: Fifty-five sedentary adults (age 49.2 ± 6.1 years) were randomised into HIIT (n = 20), PIST (n = 21), or a sedentary control group (CTRL n = 14)...
April 13, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28401638/the-effects-of-high-intensity-interval-training-vs-moderate-intensity-continuous-training-on-body-composition-in-overweight-and-obese-adults-a-systematic-review-and-meta-analysis
#9
REVIEW
M Wewege, R van den Berg, R E Ward, A Keech
OBJECTIVE: The objective of this study is to compare the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) for improvements in body composition in overweight and obese adults. METHODS: Trials comparing HIIT and MICT in overweight or obese participants aged 18-45 years were included. Direct measures (e.g. whole-body fat mass) and indirect measures (e.g. waist circumference) were examined. RESULTS: From 1,334 articles initially screened, 13 were included...
April 11, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28398946/high-intensity-interval-training-appetite-and-reward-value-of-food-in-the-obese
#10
Catia Martins, Irina Aschehoug, Marit Ludviksen, Jens Holst, Graham Finlayson, Ulrik Wisloff, Linda Morgan, Neil King, Bård Kulseng
PURPOSE: Studies on the impact of chronic interval training on appetite in the obese population are scarce. The aim of this study was to determine the effect of 12 weeks of isocaloric programs of moderate-intensity continuous training (MICT) or high-intensity interval training (HIIT), or a short-duration HIIT (1/2HIIT), on subjective feelings of appetite, appetite-related hormones and reward value of food in sedentary obese individuals. METHODS: Forty-six sedentary obese individuals (30 women and 16 men), with a BMI of 33...
April 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28392340/exercise-intensity-redox-homeostasis-and-inflammation-in-type-2-diabetes-mellitus
#11
Alistair R Mallard, Siri Marte Hollekim-Strand, Jeff S Coombes, Charlotte B Ingul
OBJECTIVES: To compare 12 weeks of exercise training at two intensities on oxidative stress, antioxidants and inflammatory biomarkers in patients with type 2 diabetes (T2D). DESIGN: Randomized trial. METHODS: Thirty-six participants with T2D were randomized to complete either 12 weeks of treadmill based high-intensity interval training (HIIT) or moderate-intensity continuous training (MICT), followed by 40 weeks of home-based training at the same intensities...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28386237/prediction-of-critical-power-and-w-in-hypoxia-application-to-work-balance-modelling
#12
Nathan E Townsend, David S Nichols, Philip F Skiba, Sebastien Racinais, Julien D Périard
Purpose: Develop a prediction equation for critical power (CP) and work above CP (W') in hypoxia for use in the work-balance ([Formula: see text]) model. Methods: Nine trained male cyclists completed cycling time trials (TT; 12, 7, and 3 min) to determine CP and W' at five altitudes (250, 1,250, 2,250, 3,250, and 4,250 m). Least squares regression was used to predict CP and W' at altitude. A high-intensity intermittent test (HIIT) was performed at 250 and 2,250 m. Actual and predicted CP and W' were used to compute W' during HIIT using differential ([Formula: see text]) and integral ([Formula: see text]) forms of the [Formula: see text] model...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28386234/high-intensity-interval-training-in-normobaric-hypoxia-improves-cardiorespiratory-fitness-in-overweight-chinese-young-women
#13
Zhaowei Kong, Qingde Shi, Jinlei Nie, Tomas K Tong, Lili Song, Longyan Yi, Yang Hu
Previous studies have investigated the effects of high-intensity interval training (HIIT) on cardiorespiratory fitness and body composition in overweight populations. However, the additive effect of HIIT and hypoxia on health parameters is not clear. This study compared the effects of HIIT under hypoxic conditions on cardiometabolic function with that under normoxia in overweight Chinese young women. Methods: A double-blind randomized controlled experimental design was applied. Twenty-four sedentary overweight Chinese young women (weight: 68...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28385556/high-intensity-interval-training-for-maximizing-health-outcomes
#14
REVIEW
Trine Karlsen, Inger-Lise Aamot, Mark Haykowsky, Øivind Rognmo
Regular physical activity and exercise training are important actions to improve cardiorespiratory fitness and maintain health throughout life. There is solid evidence that exercise is an effective preventative strategy against at least 25 medical conditions, including cardiovascular disease, stroke, hypertension, colon and breast cancer, and type 2 diabetes. Traditionally, endurance exercise training (ET) to improve health related outcomes has consisted of low- to moderate ET intensity. However, a growing body of evidence suggests that higher exercise intensities may be superior to moderate intensity for maximizing health outcomes...
April 3, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/28381445/high-intensity-interval-training-improves-performance-in-young-and-older-individuals-by-increasing-mechanical-efficiency
#15
Georges Jabbour, Horia-Daniel Iancu, Pascale Mauriège, Denis R Joanisse, Luc J Martin
This study evaluated the effects of 6 weeks of high-intensity interval training (HIIT) on mechanical efficiency (ME) in young and older groups. Seventeen healthy young adults [26.2(2.4) year], and thirteen healthy older adults [54.5(2.3) year] completed a 6-week HIIT intervention (three sessions per week) on an electromagnetically braked cycle ergometer. Each HIIT session contained six repetitions of supramaximal exercise intervals (6 seconds each) with 2 min of passive recovery between each repetition...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28378071/can-intervals-enhance-the-inflammatory-response-and-enjoyment-in-upper-body-exercise
#16
Sven P Hoekstra, Nicolette C Bishop, Christof A Leicht
PURPOSE: To investigate the inflammatory and perceptual responses to three different forms of upper-body exercise. METHODS: Twelve recreationally active, able-bodied males performed three work-matched arm-crank sessions in a randomised order: 30 min moderate-intensity continuous (CON), 30 min moderate-intensity with changes in cadence (CAD) and 20 min high-intensity interval training (HIIT). Blood samples were taken pre, post and 2-h post-exercise to determine plasma concentrations of interleukin (IL)-6 and IL-1ra...
April 4, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28373911/feasibility-of-high-intensity-interval-training-and-moderate-intensity-continuous-training-in-adults-with-inactive-or-mildly-active-crohn-s-disease-study-protocol-for-a-randomised-controlled-trial
#17
Garry A Tew, Roger Carpenter, Michael Seed, Simon Anderson, Louise Langmead, Caroline Fairhurst, Lindsay Bottoms
BACKGROUND: Structured exercise training has been proposed as a useful adjunctive therapy for Crohn's disease by improving immune function and psychological health, reducing fatigue and promoting gains in muscle and bone strength. However, the evidence for exercise in Crohn's disease is sparse, with only a handful of small prospective trials [1, 2], with methodological limitations, including the use of non-randomised and non-controlled study designs and small sample sizes. Here, we describe the protocol for a study that aims to assess the feasibility and acceptability of two common types of exercise training-high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT)-in adults with inactive or mildly active Crohn's disease (CD)...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28366674/effects-of-high-intensity-interval-training-on-people-living-with-type-2-diabetes-a-narrative-review
#18
REVIEW
Shohn G Wormgoor, Lance C Dalleck, Caryn Zinn, Nigel K Harris
People with type 2 diabetes typically present with comorbidities, such as elevated blood pressure, high cholesterol, high blood glucose, obesity and decreased fitness, all contributive to increased risk for cardiovascular complications. Determination of effective exercise modalities for the management of such complications is important. One such modality is high-intensity interval training (HIIT). To conduct the review, PubMed and EBSCOHost databases were searched through June 1, 2016, for all HIIT intervention studies conducted in people living with type 2 diabetes...
March 30, 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28345160/increasing-skeletal-muscle-carnitine-availability-does-not-alter-the-adaptations-to-high-intensity-interval-training
#19
Christopher E Shannon, Reza Ghasemi, Paul L Greenhaff, Francis B Stephens
Increasing skeletal muscle carnitine availability alters muscle metabolism during steady-state exercise in healthy humans. We investigated whether elevating muscle carnitine, and thereby the acetyl-group buffering capacity, altered the metabolic and physiological adaptations to 24 weeks of high-intensity interval training (HIIT) at 100% maximal exercise capacity (Wattmax ). Twenty-one healthy male volunteers (age 23±2 years; BMI 24.2±1.1 kg/m(2) ) performed 2x3 minute bouts of cycling exercise at 100% Wattmax , separated by five minutes rest...
March 27, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28319586/short-term-exercise-training-alters-leukocyte-chemokine-receptors-in-obese-adults
#20
Julianne C Barry, Svetlana Simtchouk, Cody Durrer, Mary E Jung, Jonathan P Little
Obesity is characterized by chronic low-grade inflammation driven by activation and tissue infiltration of circulating leukocytes. Although exercise has anti-inflammatory effects, the impact of exercise on mediators of leukocyte migration is unclear. PURPOSE: To determine the impact of high intensity interval training (HIIT) versus moderate intensity continuous training (MICT), in the absence of weight/fat loss, on circulating chemokines and leukocyte chemokine receptors. METHODS: Thirty-seven inactive obese adults were randomized to two weeks (10 sessions) of HIIT or MICT with fasting blood samples collected before and after training...
March 18, 2017: Medicine and Science in Sports and Exercise
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