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Yann Le Meur, Martin Buchheit, Anaël Aubry, Aaron J Coutts, Christophe Hausswirth
PURPOSE: Faster heart rate recovery (HRR) following high-to-maximal exercise (≥90% HRmax) has been reported in athletes suspected of functional overreaching (f-OR). This study investigated whether this response would also occur at lower exercise intensity. METHODS AND RESULTS: HRR and rate of perceived exertion (RPE) responses were compared during an incremental intermittent running protocol to exhaustion in twenty experienced male triathletes (8 control and 13 overload subjects led to f-OR) before (Pre), immediately after an overload training period (Mid) and following a 1-week taper (Post)...
September 6, 2016: International Journal of Sports Physiology and Performance
Javier J Vilamitjana, Néstor A Lentini, Pablo E Verde, Mario F Perez
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Caleb D Bazyler, Satoshi Mizuguchi, Alex P Harrison, Kimitake Sato, Ashley A Kavanaugh, Brad H DeWeese, Michael H Stone
The purpose of this study was to examine the effects of an overreach and taper on measures of muscle architecture, jumping, and throwing performance in Division I collegiate throwers preparing for conference championships. Six collegiate track and field throwers (3 hammer, 2 discus, 1 javelin) trained for 12 weeks using a block-periodization model culminating with a one week overreach followed by a 3 week taper (ORT). Session rating of perceived exertion training load (RPETL) and strength training volume-load times bar displacement (VLd) were recorded weekly...
August 26, 2016: Journal of Strength and Conditioning Research
Lesley E Steinman, Victoria Bradford, Emilee Quinn, Jennifer J Otten, Jennifer McNamara, Kari Fisher, Donna B Johnson
Objectives Breastfeeding promotion is increasingly recognized as a key public health strategy. Policies can promote breastfeeding by creating supportive environments and addressing challenges. In 2014, the Washington State legislature considered bills to create a voluntary recognition system for breastfeeding-friendly hospitals, clinics, worksites and childcare settings. These Breastfeeding-Friendly Washington (BFW) bills (SB 6298 and HB 2329) did not pass. Methods The purpose of this case study was to analyze the policy development process for the BFW bills using the Advocacy Coalition Framework...
August 6, 2016: Maternal and Child Health Journal
Mathew W Hill, Matthew F Higgins, Michael J Price
PURPOSE: The purpose of this study was to investigate whether high-intensity cycling training leads to adapted responses of balance performance in response to exercise-induced muscle fatigue. METHODS: Eighteen healthy adults were assigned to either 3-weeks (n = 8, age 20.1 ± 2.6 years, height 177 ± 5 cm, mass 73.6 ± 5.1 kg) or 6-weeks (n = 10, age 24.3 ± 5.8 years, height 179 ± 6 cm, mass 81.0 ± 15.8 kg) of high-intensity training (HIT) on a cycle ergometer...
October 2016: European Journal of Applied Physiology
Jordan M Joy, Roxanne M Vogel, Jordan R Moon, Paul H Falcone, Matt M Mosman, Zbigniew Pietrzkowski, Tania Reyes, Michael P Kim
BACKGROUND: Increased cellular ATP levels have the potential to enhance athletic performance. A proprietary blend of ancient peat and apple extracts has been supposed to increase ATP production. Therefore, the purpose of this investigation was to determine the effects of this supplement on athletic performance when used during 12 weeks of supervised, periodized resistance training. METHODS: Twenty-five healthy, resistance-trained, male subjects completed this study...
2016: BMC Complementary and Alternative Medicine
Billy Sperlich, Silvia Achtzehn, Markus de Marées, Henning von Papen, Joachim Mester
There is a debate on the optimal way of monitoring training loads in elite endurance athletes especially during altitude training camps. In this case report, including nine members of the German national middle distance running team, we describe a practical approach to monitor the psychobiological stress markers during 21 days of altitude training (~2100 m above sea-level) to estimate the training load and to control muscle damage, fatigue, and/or chronic overreaching. Daily examination included: oxygen saturation of hemoglobin, resting heart rate, body mass, body and sleep perception, capillary blood concentration of creatine kinase...
June 2016: Physiological Reports
Sarah Roberts
No abstract text is available yet for this article.
July 2016: Journal of Studies on Alcohol and Drugs
Joel T Fuller, Clint R Bellenger, Dominic Thewlis, John Arnold, Rebecca L Thomson, Margarita D Tsiros, Eileen Y Robertson, Jonathan D Buckley
PURPOSE: Stride-to-stride fluctuations in running stride interval display long-range correlations that breakdown in the presence of fatigue accumulated during an exhaustive run. The purpose of our study was to investigate whether long-range correlations in running stride interval were reduced by fatigue accumulated during prolonged exposure to a high training load (functional overreaching) and were associated with decrements in performance caused by functional overreaching. METHODS: Ten trained male runners completed 7-days of light training (LT7), 14-days of heavy training (HT14) designed to induce a state of functional overreaching and 10-days of light training (LT10) in a fixed order...
June 13, 2016: International Journal of Sports Physiology and Performance
Jordan M Joy, Roxanne M Vogel, Jordan R Moon, Paul H Falcone, Matt M Mosman, Michael P Kim
BACKGROUND: Increased ATP levels may enhance training-induced muscle accretion and fat loss, and caffeine is a known ergogenic aid. A novel supplement containing ancient peat and apple extracts has reported enhanced mitochondrial ATP production and it has been coupled with an extended-release caffeine. Therefore, the purpose of this investigation was to determine the effects of this supplement on body composition when used in conjunction with 12 weeks of resistance training. METHODS: Twenty-one resistance-trained subjects (27...
2016: Journal of the International Society of Sports Nutrition
Christian Raeder, Thimo Wiewelhove, Rauno Álvaro De Paula Simola, Michael Kellmann, Tim Meyer, Mark Pfeiffer, Alexander Ferrauti
This study aimed to analyze changes of neuromuscular, physiological and perceptual markers for routine assessment of fatigue and recovery in high-resistance strength training. Fourteen male and nine female athletes participated in a six-day intensified strength training micro-cycle (STM) designed to purposefully overreach. Maximal dynamic strength (estimated one-repetition maximum [1RMest]; criterion measure of fatigue and recovery), maximal isometric strength (MVIC), countermovement jump (CMJ) height, multiple rebound jump (MRJ) height, jump efficiency (RSI), muscle contractile properties using tensiomyography including muscle displacement (Dm), delay time (Td), contraction time (Tc) and contraction velocity (V90), serum concentration of creatine kinase (CK), perceived muscle soreness (DOMS) and perceived recovery (PPC) and stress (MS) were measured pre and post the STM and after three days of recovery...
April 14, 2016: Journal of Strength and Conditioning Research
Barbara C M Oosterkamp, Afzal Wafae, Jan G J H Schols, Wil J M van der Sanden, Michel Wensing
BACKGROUND: White spot lesions (WSLs) occur as a side effect in over 25 % of patients who undergo orthodontic treatment, causing aesthetic problems and a risk of deeper enamel and dentine lesions. Dutch orthodontists show substantial variation in their application of WSL preventive measures, which include little incorporation of evidence from the literature. We recently developed an evidence-based clinical practice guideline (CPG) on this topic, which was further converted into a computerized clinical decision support system (CDSS) to facilitate its incorporation into clinical practice...
2016: Trials
Ida S Svendsen, Sophie C Killer, James M Carter, Rebecca K Randell, Asker E Jeukendrup, Michael Gleeson
PURPOSE: To determine effects of intensified training (IT) and carbohydrate supplementation on overreaching and immunity. METHODS: In a randomized, double-blind, crossover design, 13 male cyclists (age 25 ± 6 years, VO2max 72 ± 5 ml/kg/min) completed two 8-day periods of IT. On one occasion, participants ingested 2 % carbohydrate (L-CHO) beverages before, during and after training sessions. On the second occasion, 6 % carbohydrate (H-CHO) solutions were ingested before, during and after training, with the addition of 20 g of protein in the post-exercise beverage...
May 2016: European Journal of Applied Physiology
Clint R Bellenger, Joel T Fuller, Rebecca L Thomson, Kade Davison, Eileen Y Robertson, Jonathan D Buckley
BACKGROUND: Autonomic regulation of heart rate (HR) as an indicator of the body's ability to adapt to an exercise stimulus has been evaluated in many studies through HR variability (HRV) and post-exercise HR recovery (HRR). Recently, HR acceleration has also been investigated. OBJECTIVE: The aim of this systematic literature review and meta-analysis was to evaluate the effect of negative adaptations to endurance training (i.e., a period of overreaching leading to attenuated performance) and positive adaptations (i...
October 2016: Sports Medicine
Mohammed Ihsan, Greig Watson, Chris R Abbiss
Intense training results in numerous physiological perturbations such as muscle damage, hyperthermia, dehydration and glycogen depletion. Insufficient/untimely restoration of these physiological alterations might result in sub-optimal performance during subsequent training sessions, while chronic imbalance between training stress and recovery might lead to overreaching or overtraining syndrome. The use of post-exercise cold water immersion (CWI) is gaining considerable popularity among athletes to minimize fatigue and accelerate post-exercise recovery...
August 2016: Sports Medicine
Signe Hjelen Stige, Per-Einar Binder
OBJECTIVE: The study explored how former trauma clients experienced the inclusion of skill training in their treatment, their ways of relating to and using these skills, and how this changed over time. METHOD: Semi-structured qualitative in-depth interviews were conducted with 13 clients within three months of their completion of treatment, and again 11-13 months later. RESULTS: Analysis of the material resulted in three main themes: (1) Being ready to find new ways to deal with trauma-related problems as a motivational starting point at intake, (2) Finding new agency through skills and understanding, and (3) One year on-Meeting the everyday world in a new way...
February 3, 2016: Psychotherapy Research: Journal of the Society for Psychotherapy Research
Lieselot Decroix, Maria Francesca Piacentini, Gerard Rietjens, Romain Meeusen
PURPOSE: High training loads combined with other stressors can lead to performance decrements. The time needed to recover determines the diagnosis of (non)-functional overreaching or the overtraining syndrome. The aim of this study was to describe the effects of an 8-day (intensified) training camp of professional female cyclists on physical and cognitive performance. METHODS: Nine subjects performed a 30-min time trial (TT), cognitive test and profile of mood state questionnaire before, during and after a training camp (49% increased training volume)...
January 27, 2016: International Journal of Sports Physiology and Performance
João G Claudino, John B Cronin, Bruno Mezêncio, João P Pinho, Conrado Pereira, Luis Mochizuki, Alberto C Amadio, Julio C Serrão
Claudino, JG, Cronin, JB, Mezêncio, B, Pinho, JP, Pereira, C, Mochizuki, L, Amadio, AC, and Serrão, JC. Autoregulating jump performance to induce functional overreaching. J Strength Cond Res 30(8): 2242-2249, 2016-The purpose of this study was to determine whether autoregulating jump performance using the minimal individual difference (MID) associated with countermovement jump (CMJ) height could be used to regulate and monitor a training phase that elicited functional overreaching and tapering in team sport athletes...
August 2016: Journal of Strength and Conditioning Research
Jaime Fernandez-Fernandez, David Sanz-Rivas, Jose Manuel Sarabia, Manuel Moya
Preseasons in tennis are normally reduced to 5 to 7 weeks duration, and coaches should use an integrated approach to conditioning and skill-based work. The aim of the present study was to investigate the effects of adding a high-intensity training (HIT) shock microcycle to the normal training content in several physical performance indicators in the preseason training of high-level male tennis players. Over 17 days, 12 male tennis players performed 13 HIT sessions in addition to their usual training. Physical performance tests (30:15 intermittent fitness test [VIFT], 20 m sprint, countermovement jump [CMJ], repeated sprint ability [RSA]) were conducted before (pre-test) and 5 days after the intervention (post-test)...
December 2015: Journal of Sports Science & Medicine
Maria Francesca Piacentini, Oliver C Witard, Cajsa Tonoli, Sarah R Jackman, James E Turner, Arie K Kies, Asker E Jeukendrup, Kevin D Tipton, Romain Meeusen
PURPOSE: Monitoring mood state is a useful tool for avoiding non-functional overreaching (NFOR). Brain derived neurotrophic factor (BDNF) is implicated in stress-related mood disorders. The purpose of the present study was to investigate the impact of intensified training-induced mood disturbance on plasma BDNF concentrations at rest and in response to exercise. METHODS: Eight cyclists performed 1 week of normal (NT), 1 week of intensified (INT) and 1 week of recovery (REC) training...
December 14, 2015: International Journal of Sports Physiology and Performance
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