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https://www.readbyqxmd.com/read/28811842/the-effect-of-three-different-exercise-training-modalities-on-cognitive-and-physical-function-in-a-healthy-older-population
#1
Carla Coetsee, Elmarie Terblanche
BACKGROUND: Older adults are encouraged to participate in regular physical activity to counter the age-related declines in physical and cognitive health. Literature on the effect of different exercise training modalities (aerobic vs resistance) on these health-related outcomes is not only sparse, but results are inconsistent. In general, it is believed that exercise has a positive effect on executive cognitive function, possibly because of the physiological adaptations through increases in fitness...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28796128/high-intensity-interval-exercises-acute-impact-on-heart-rate-variability-comparison-between-whole-body-and-cycle-ergometer-protocols
#2
Gustavo Z Schaun, Fabrício B Del Vecchio
Study aimed to compare the effects of two high-intensity interval exercises (HIIT) protocols on heart rate variability (HRV). Twelve young adult males (23.3 ± 3.9 years, 177.8 ± 7.4 cm, 76.9 ± 12.9 kg) volunteered to participate. In a randomized cross-over design, subjects performed two HIIT protocols, one on a cycle ergometer (TBT; eight 20 s bouts at 170% Pmax interspersed by 10 s rest) and another with whole-body calisthenic exercises (MCR; eight 20 s all-out intervals interspersed by 10 s rest). HRV outcomes in the time, frequency and non-linear domains were assessed on three moments: (a) pre-session; (b) immediately post-session; and (c) 24h post-session...
August 4, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28794164/hiit-produces-increases-in-muscle-power-and-free-testosterone-in-male-masters-athletes
#3
P Herbert, L D Hayes, N F Sculthorpe, F M Grace
High-intensity interval training (HIIT) improves peak power output (PPO) in sedentary aging men but has not been examined in masters endurance athletes. Therefore, we investigated whether a six-week program of low-volume HIIT would (i) improve PPO in masters athletes and (ii) whether any change in PPO would be associated with steroid hormone perturbations. Seventeen male masters athletes (60 ± 5 years) completed the intervention, which comprised nine HIIT sessions over six weeks. HIIT sessions involved six 30-s sprints at 40% PPO, interspersed with 3 min active recovery...
October 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28792851/high-intensity-interval-and-moderate-intensity-continuous-training-elicit-similar-enjoyment-and-adherence-levels-in-overweight-and-obese-adults
#4
Chantal A Vella, Katrina Taylor, Devin Drummer
BACKGROUND: High-intensity interval training (HIIT) has been shown to improve cardiometabolic health during supervised lab-based studies but adherence, enjoyment, and health benefits of HIIT performed independently are yet to be understood. We compared adherence, enjoyment, and cardiometabolic outcomes after 8 weeks of HIIT or moderate-intensity continuous training (MICT), matched for energy expenditure, in overweight and obese young adults. METHODS: 17 adults were randomized to HIIT or MICT...
August 9, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28790929/combined-interval-training-and-post-exercise-nutrition-in-type-2-diabetes-a-randomized-control-trial
#5
Monique E Francois, Cody Durrer, Kevin J Pistawka, Frank A Halperin, Courtney Chang, Jonathan P Little
Background: High-intensity interval training (HIIT) can improve several aspects of cardiometabolic health. Previous studies have suggested that adaptations to exercise training can be augmented with post-exercise milk or protein consumption, but whether this nutritional strategy can impact the cardiometabolic adaptations to HIIT in type 2 diabetes is unknown. Objective: To determine if the addition of a post-exercise milk or protein beverage to a high-intensity interval training (HIIT) intervention improves cardiometabolic health in individuals with type 2 diabetes...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28772048/the-effect-of-exercise-training-on-biventricular-myocardial-strain-in-heart-failure-with-preserved-ejection-fraction
#6
Siddhartha S Angadi, Catherine L Jarrett, Moustafa Sherif, Glenn A Gaesser, Farouk Mookadam
AIMS: High-intensity interval training (HIIT) improves peak oxygen uptake and left ventricular diastology in patients with heart failure with preserved ejection fraction (HFpEF). However, its effects on myocardial strain in HFpEF remain unknown. We explored the effects of HIIT and moderate-intensity aerobic continuous training (MI-ACT) on left and right ventricular strain parameters in patients with HFpEF. Furthermore, we explored their relationship with peak oxygen uptake (VO2peak )...
August 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28747269/high-intensity-interval-training-and-cardiac-autonomic-control-in-individuals-with-metabolic-syndrome-a-randomised-trial
#7
Joyce S Ramos, Lance C Dalleck, Fabio Borrani, Kassia S Beetham, Gregore Iven Mielke, Katrin A Dias, Matthew P Wallen, Shelley E Keating, Robert G Fassett, Jeff S Coombes
BACKGROUND: Insulin resistance has been postulated to play a central role in the co-appearance of various cardiovascular disease risk factors constituting the metabolic syndrome (MetS). There is evidence that altered cardiac autonomic function (CAF) may precede the onset of insulin resistance. Exercise training has been shown to improve CAF in different populations, yet little is known regarding the exercise dose response for CAF. The aim of this study was to investigate the impact of different volumes of high-intensity interval training (HIIT) and traditional moderate-intensity continuous training (MICT) on CAF in participants with MetS...
July 21, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28744226/the-mucosal-immune-function-is-not-compromised-during-a-period-of-high-intensity-interval-training-is-it-time-to-reconsider-an-old-assumption
#8
Dennis-Peter Born, Christoph Zinner, Billy Sperlich
Purpose: The aim of the study was to evaluate the mucosal immune function and circadian variation of salivary cortisol, Immunoglobin-A (sIgA) secretion rate and mood during a period of high-intensity interval training (HIIT) compared to long-slow distance training (LSD). Methods: Recreational male runners (n = 28) completed nine sessions of either HIIT or LSD within 3 weeks. The HIIT involved 4 × 4 min of running at 90-95% of maximum heart rate interspersed with 3 min of active recovery while the LSD comprised of continuous running at 70-75% of maximum heart rate for 60-80 min...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28737586/comparison-of-acute-physiological-and-psychological-responses-between-moderate-intensity-continuous-exercise-and-three-regimes-of-high-intensity-training
#9
Nicole Green, Timothy Wertz, Zachary LaPorta, Adam Mora, Jasmine Serbas, Todd A Astorino
High intensity interval training (HIIT) elicits similar physiological adaptations as moderate intensity continuous training (MICT) despite less time commitment. However, there is debate whether HIIT is more aversive than MICT. This study compared physiological and perceptual responses between MICT and three regimes of HIIT. Nineteen active adults (age = 24.0 ± 3.3 yr) unfamiliar with HIIT initially performed ramp exercise to exhaustion to measure maximal oxygen uptake (VO2 max) and determine workload for subsequent sessions, whose order was randomized...
July 19, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28729841/prevalence-of-non-responders-for-glucose-control-markers-after-10-weeks-of-high-intensity-interval-training-in-adult-women-with-higher-and-lower-insulin-resistance
#10
Cristian Álvarez, Rodrigo Ramírez-Campillo, Robinson Ramírez-Vélez, Mikel Izquierdo
Background: Exercise training improves performance and biochemical parameters on average, but wide interindividual variability exists, with individuals classified as responders (R) or non-responders (NRs), especially between populations with higher or lower levels of insulin resistance. This study assessed the effects of high-intensity interval training (HIIT) and the prevalence of NRs in adult women with higher and lower levels of insulin resistance. Methods: Forty adult women were assigned to a HIIT program, and after training were analyzed in two groups; a group with higher insulin resistance (H-IR, 40 ± 6 years; BMI: 29...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28726550/exploring-the-impact-of-high-intensity-interval-training-on-adolescents-objectively-measured-physical-activity-findings-from-a-randomized-controlled-trial
#11
Sarah A Costigan, Nicola D Ridgers, Narelle Eather, Ronald C Plotnikoff, Nigel Harris, David R Lubans
High Intensity Interval Training (HIIT) may be effective for accumulating VPA. However, the contribution of HIIT to overall physical activity is unknown. Our primary aim was to explore the impact of school-based HIIT on physical activity. The secondary aim was to explore within-individual changes in physical activity after participating in HIIT. Participants [n = 65; 15.8(0.6)years] were randomized to a HIIT or control group. Intervention groups participated in three HIIT sessions/week. GENEActiv accelerometers assessed objective physical activity at baseline and week-one, to detect changes in MPA and VPA...
July 20, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28722022/opioid-release-after-high-intensity-interval-training-in-healthy-human-subjects
#12
Tiina Saanijoki, Lauri Tuominen, Jetro J Tuulari, Lauri Nummenmaa, Eveliina Arponen, Kari Kalliokoski, Jussi Hirvonen
Central opioidergic mechanisms may modulate the positive effects of physical exercise such as mood elevation and stress reduction. How exercise intensity and concomitant effective changes affect central opioidergic responses is unknown. We studied the effects of acute physical exercise on the cerebral μ-opioid receptors (MOR) of 22 healthy recreationally active males using positron emission tomography (PET) and the MOR-selective radioligand [(11)C]carfentanil. MOR binding was measured in three conditions on separate days: after a 60-min aerobic moderate-intensity exercise session, after a high-intensity interval training (HIIT) session, and after rest...
July 19, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28708930/effects-of-high-intensity-aerobic-interval-training-on-cardiovascular-disease-risk-in-testicular-cancer-survivors-a-phase-2-randomized-controlled-trial
#13
Scott C Adams, Darren S DeLorey, Margie H Davenport, Michael K Stickland, Adrian S Fairey, Scott North, Alexander Szczotka, Kerry S Courneya
BACKGROUND: Testicular cancer survivors (TCS) have an increased risk of treatment-related cardiovascular disease (CVD), which may limit their overall survival. We evaluated the effects of high-intensity aerobic interval training (HIIT) on traditional and novel CVD risk factors and surrogate markers of mortality in a population-based sample of TCS. METHODS: This phase 2 trial (ClinicalTrials.gov identifier NCT02459132) randomly assigned 63 TCS to usual care (UC) or 12 weeks of supervised HIIT (ie, alternating periods of vigorous-intensity and light-intensity aerobic exercise)...
July 14, 2017: Cancer
https://www.readbyqxmd.com/read/28706490/effects-of-6-weeks-high-intensity-interval-training-in-schoolchildren-with-insulin-resistance-influence-of-biological-maturation-on-metabolic-body-composition-cardiovascular-and-performance-non-responses
#14
Cristian Alvarez, Rodrigo Ramírez-Campillo, Robinson Ramírez-Vélez, Mikel Izquierdo
Background: Previous studies have observed significant heterogeneity in the magnitude of change in measures of metabolic response to exercise training. There are a lack of studies examining the prevalence of non-responders (NRs) in children while considering other potential environmental factors involved such as biological maturation. Aim: To compare the effects and prevalence of NRs to improve the insulin resistance level (by HOMA-IR), as well as to other anthropometric, cardiovascular, and performance co-variables, between early (EM) and normal maturation (NM) in insulin-resistance schoolchildren after 6-weeks of HIIT...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28704315/appetite-regulations-after-sprint-exercise-under-hypoxic-condition-in-female-athletes
#15
Chihiro Kojima, Nobukazu Kasai, Aya Ishibashi, Yukako Murakami, Kumiko Ebi, Kazushige Goto
The present study determined changes in appetite-regulating hormones and energy intake after high-intensity interval exercise (HIIT) under hypoxic conditions in trained female athletes. Fifteen female athletes completed three trials on different days of either HIIT under hypoxic conditions (HYP), HIIT under normoxic conditions (NOR), or rest in normoxia (CON). Exercise trials consisted of two successive sets of eight repeated bouts of a 6-s maximal sprint separated by a 30-s rest. Blood samples were obtained to measure plasma acylated ghrelin, glucagon-like peptide-1 (GLP-1), and metabolite concentrations...
July 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28701523/lifelong-exercise-but-not-short-term-high-intensity-interval-training-increases-gdf11-a-marker-of-successful-aging-a%C3%A2-preliminary-investigation
#16
Bradley T Elliott, Peter Herbert, Nicholas Sculthorpe, Fergal M Grace, Daniel Stratton, Lawrence D Hayes
Lifelong exercise is associated with regulation of skeletal mass and function, reductions in frailty, and successful aging. Yet, the influence of exercise on myostatin and myostatin-interacting factors is relatively under examined in older males. Therefore, we investigated whether serum total myostatin, free myostatin, follistatin, and growth and differentiation factor 11 (GDF11) were altered following high-intensity interval training (HIIT) in a group of 13 lifelong sedentary (SED; 64 [6] years) and 11 lifelong exercising (LEX; 62 [6] years) older males...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28700514/low-volume-high-intensity-interval-versus-continuous-endurance-training-effects-on-hematological-and-cardiorespiratory-system-adaptations-in-professional-canoe-polo-athletes
#17
Mohsen Sheykhlouvand, Mohammadali Gharaat, Erfan Khalili, Hamid Agha-Alinejad, Farhad Rahmaninia, Hamid Arazi
The aim of this study was to compare the effect of two paddling-based high-intensity interval training (HIIT) and continuous endurance training (CET) on hematological, immunological, and cardiorespiratory adaptations in professional canoe polo athletes. Twenty one male canoe polo athletes were randomly divided into one of three groups (N=7): 1) HIIT with variable intensity (VIHIIT) (6×60-second at 100,110,120,130,130, 130,120,110,100% vV[Combining Dot Above]O2peak from 1 to 9 session respectively, 1:3 work to recovery ratio); 2) HIIT with variable volume (VVHIIT) (6,7,8,9,9,9,8,7,6 repetitions/session from 1 to 9 session respectively)×60-second at lowest velocity that elicited V[Combining Dot Above]O2peak (vV[Combining Dot Above]O2peak), 1:3 work to recovery ratio); and 3) the CET group performed 3 times × 60 min paddling sessions (75% vV[Combining Dot Above]O2peak) per week for 3 weeks...
July 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28656073/neutrophil-and-monocyte-bactericidal-responses-to-10-weeks-of-low-volume-high-intensity-interval-or-moderate-intensity-continuous-training-in-sedentary-adults
#18
David B Bartlett, Sam O Shepherd, Oliver J Wilson, Ahmed M Adlan, Anton J M Wagenmakers, Christopher S Shaw, Janet M Lord
Neutrophils and monocytes are key components of the innate immune system that undergo age-associated declines in function. This study compared the impact of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on immune function in sedentary adults. Twenty-seven (43 ± 11 years) healthy sedentary adults were randomized into ten weeks of either a HIIT (>90% maximum heart rate) or MICT (70% maximum heart rate) group training program. Aerobic capacity (VO2peak), neutrophil and monocyte bacterial phagocytosis and oxidative burst, cell surface receptor expression, and systemic inflammation were measured before and after the training...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28648356/effects-of-high-intensity-interval-versus-continuous-exercise-training-on-post-exercise-heart-rate-recovery-in-coronary-heart-disease-patients
#19
Koldobika Villelabeitia-Jaureguizar, Davinia Vicente-Campos, Alejandro Berenguel Senen, Verónica Hernández Jiménez, María Elvira Barrios Garrido-Lestache, Jose López Chicharro
BACKGROUND: Heart rate recovery (HRR) has been considered a prognostic and mortality indicator in both healthy and coronary patients. Physical exercise prescription has shown improvements in VO2peak and HRR, but most of the studies have been carried out applying continuous training at a moderate intensity, being very limited the use of protocols of high intensity interval training in coronary patients. We aimed to compare the effects of a moderate continuous training (MCT) versus a high intensity interval training (HIIT) programme on VO2peak and HRR...
June 17, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28647284/the-effects-of-high-intensity-interval-training-on-muscle-size-and-quality-in-overweight-and-obese-adults
#20
Malia N M Blue, Abbie E Smith-Ryan, Eric T Trexler, Katie R Hirsch
OBJECTIVES: Despite growing popularity of high intensity interval training (HIIT) for improving health and fitness, limited data exist identifying the effects of HIIT on muscle characteristics. The purpose of the current study was to investigate the effects of a 3-week HIIT intervention on muscle size and quality in overweight and obese men and women. DESIGN: Randomized controlled trial. METHODS: Forty-four overweight and obese men and women (mean±SD; age: 35...
June 8, 2017: Journal of Science and Medicine in Sport
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