Different resistance training protocols influence basal metabolic rate and respiratory ratio in nondieting individuals

Search for Multimessenger Sources of Gravitational Waves and High-energy Neutrinos with Advanced LIGO during Its First Observing Run, ANTARES, and IceCube

[EN] Astrophysical sources of gravitational waves, such as binary neutron star and black hole mergers or core-collapse supernovae, can drive relativistic outflows, giving rise to non-thermal high-energy emission. High-energy neutrinos are signatures of such outflows. The detection of gravitational waves and high-energy neutrinos from common sources could help establish the connection between the dynamics of the progenitor and the properties of the out¿ow. We searched for associated emission of gravitational waves and high-energy neutrinos from astrophysical transients with minimal assumptions using data from Advanced LIGO from its first observing run O1, and data from the ANTARES and IceCub…

Physical characteristics of moderately active men after 8 weeks of ‘‘calisthenics’’ training

Aim: Calisthenics was originally a term used to define body weight exercises [1–3]. This term is now used to define a world wide spread sport based on body weight exercises. Therefore, the aim of this study was to understand the effects of calisthenics (sport) on sedentary individuals. Methods: 28 male participants (24.2 ± 4.2 years; 67.0 ± 8.3 kg; 173.3 ± 5.2 cm) were divided into two groups, a Calisthenics based intervention group (CIG) and a control group (CG). The CGI exercised for 8 weeks. Each participant underwent a postural assessment, a handgrip test (HG), a push-up and a pull-up test. Each participant was tested at baseline and post intervention. Results: The CGI improved their po…

FLUID AND ELECTROLYTE SUPPLEMENTATION IN ATHLETES AND FITNESS PEOPLE. A REVIEW

Il presente lavoro pone l’accento sull'importanza di una corretta idratazione sia per gli atleti sia per i sedentari. E’ infatti noto che l'acqua e i componenti in essa disciolti sono di fondamentale importanza per mantenere inalterate le principali funzioni del nostro organismo. Sono stati analizzati in particolare i sali minerali contenuti nell’acqua e nelle bevande utilizzate per la loro integrazione. E’ infatti invalso l'uso e l'abuso di integratori salini per gli atleti sulla cui utilità sono presenti in letteratura diversi contributi. Gli AA hanno anche approfondito il tema della sudorazione e le situazioni in cui aumentano le perdite di fluidi corporei cercando di capire come atleti …

MOLECULAR SIGNALLING RESPONSE TO SHORT DURATION HIGH INTENSITY/LOW VOLUME RESISTANCE TRAINING IN HUMAN SKELETAL MUSCLE.

Introduction Resistance training (RT) is one of the most important stimuli for muscle hypertrophy, but it may play also an important role on weight loss and fat acid (FA) oxidation increase. It has been largely demonstrated that RT affects anabolic signalling molecule phosphorylation but, considering the numerous variables of RT, the differences between training modalities has been till now poorly investigated. The aim of this study was to assess Akt, 4EBP1, S6 and AMPK, ACC signalling after a single bout of high-intensity resistance training (HIRT) and of traditional resistance training (TRT). Methods 12 healthy subjects performed in two different moments and with different legs HIRT and T…

Search for High-energy Neutrinos from Gravitational Wave Event GW151226 and Candidate LVT151012 with ANTARES and IceCube

[EN] The Advanced LIGO observatories detected gravitational waves from two binary black hole mergers during their first observation run (O1). We present a high-energy neutrino follow-up search for the second gravitational wave event, GW151226, as well as for gravitational wave candidate LVT151012. We find two and four neutrino candidates detected by IceCube, and one and zero detected by ANTARES, within +/- 500 s around the respective gravitational wave signals, consistent with the expected background rate. None of these neutrino candidates are found to be directionally coincident with GW151226 or LVT151012. We use nondetection to constrain isotropic-equivalent high-energy neutrino emission …

Properties of the Binary Neutron Star Merger GW170817

On August 17, 2017, the Advanced LIGO and Advanced Virgo gravitational-wave detectors observed a low-mass compact binary inspiral. The initial sky localization of the source of the gravitational-wave signal, GW170817, allowed electromagnetic observatories to identify NGC 4993 as the host galaxy. In this work, we improve initial estimates of the binary's properties, including component masses, spins, and tidal parameters, using the known source location, improved modeling, and recalibrated Virgo data. We extend the range of gravitational-wave frequencies considered down to 23 Hz, compared to 30 Hz in the initial analysis. We also compare results inferred using several signal models, which ar…

Effects of a constant and incremental workload training protocol on upper body strenght gains

Gender differences in upper and lower limb strength response to 8 weeks of resistance training

Effects of sport-specific training background on performance of volleyball and basketball athletes

Aim: The aim of this study was to assess the influence of 3 years of sport-specific training background (SSTB) on throwing performance and vertical jumping in young female players of team sports. Methods: Thirty-one healthy adolescent girls, of which 11 age-matched control subjects [C], 10 volleyballers (VP) and 10 basketballers (BP) were considered in our analysis. The vertical jumping performance was evaluated by squat jump (SJ), countermovement jump with (CMJ-AS) and without arm swing (CMJ) using Optojump system (Microgate S.R.L., Italy). Instead, the throwing performance was measured by seated backward overhead ball throw (SBOMBT) and seated chest pass throw (SCPT) using a 3-kg rubber m…

Principi di Metodologia del Fitness

EFFECT OF KETOGENIC DIET ON EXPLOSIVE STRENGTH PERFORMANCE IN ELITE ARTISTIC GYMNASTS

Introduction Despite the increasing use of low carbohydrates/ketogenic diets (KD) on weight control and management of metabolic syndrome (Westman et al., 2007) there are paucity of researches about effects of KD diets on sport performances (Phinney et al., 1983a, 1983b). KD diets maybe useful in sports with weight class divisions. The aim of our study was to investigate the influence of KD on explosive strength performance, specifically in elite artistic gymnasts. Methods 8 male subjects (age 20.9 +/- 5.5 yrs) were recruited. Several physical and performance tests (body composition analysis, hanging straight leg raise, ground push up, parallel bars push up, pull up, squat jump, countermovem…

STUDY OF SAGITTAL SPINAL ROM IN ELDERLY WOMEN AFTER A SPECIFIC FLEXIBILITY-TRAINING PROGRAM

The reduction of spinal mobility is one luckless consequence of the aging process. In particular, scarcity of exercise appears to be the principal reason of aging-related spinal dysfunction syndrome, which is characterized by adaptive shortening of soft tissue and a partial loss of range of spinal motion (1). Several recommendations promoting the spinal flexibility in elderly people are based on stretching programs that include static and ballistic exercises and PNF techniques (2). Several studies showed that specific training programs could improve body balance (3), bodyweight distribution on feet (4), muscle strength and flexibility (5) in elders. In particular, Imagama et al. (2011) show…

FITNESS IN PREVENTION AND TREATMENT OF THE METABOLIC SYNDROME: A CASE REPORT

Physical inactivity is a major risk factor for cardiovascular disease, and persons who are less active and less fit have a 30% to 50% greater risk for high blood pressure and others metabolic diseases. The objective of this study was to improve the cardio-respiratory fitness, and to reduce body weight in an obese, hypertensive and sedentary man (Metabolic Syndrome Case Report). The anthropometrics and physiological characteristics were recorded before, during and after the experimentation. The subject performed a specific fitness program for eleven months (70 sessions). The results showed a significant reduction of Body Mass (p<0.001). Moreover the resting blood pressure recorded at the end…

Inflammatory mediators and other biomarkers in co-intoxicated patients after hyperbaric oxygen therapy (HBO2)

Objective: The present study was conducted in attempt to identify reliable biomarkers in predicting the severity of neurological injury. Materials and methods: A number of 30 patients with confirmed CO poisoning and a number of 7 healthy control volunteers were involved into the study. All participants received at least 60 minutes of hyperbaric oxygen therapy (HBO2) at 2.5 atmospheres absolute (ATA). Standard blood gas analysis was performed on 10 mL venous blood samples obtained immediately before and after HBO2. Seven biomarkers and carboxyhemoglobin (COHb) levels were measured. Results: Following HBO2, all patients recovered fully and were discharged in stable condition. Significant diff…

USE OF PROTEIN SUPPLEMENTS AND DIETARY BEHAVIOUR: RESULTS OF A SURVEY ON PEOPLE ATTENDING COMMERCIAL GYMS IN ITALY

Introduction Nutrition is traditionally perceived as a crucial component of physical fitness and performance. In the last few decades, the increasing understanding of human nutrition and exercise physiology has showed that a wise management of nutrient intake could positively affect fitness improvements and sport performance. The aim of this study was to examine the use of dietary supplements and diet behavior amongst regular fitness centers users in Italy. Methods A specific questionnaire was generated for the experimentation. The data were collected using the face-to-face interview method. Only strength and conditioning classes participants were included in the selection criteria. Trainin…

INJURY PREVENTION IN YOUNG SOCCER PLAYERS: RESULTS OF A PILOT STUDY

Risk factors for soccer injuries and prevention have been discussed by several authors, but only few have investigated the effectiveness of preventive interventions, in particular in the last few years. The aim of the present study was to evaluate the effects of a prevention program on the incidence of soccer-related injuries in three different categories of younger players (Allievi, Giovanissimi e Primavera). The soccer teams took part in a prevention program to decrease injury risk, for two agonistic seasons (2005-06, 2006-07). Before identifying training programs, we valued the younger fitness status: each youth soccer players (aged 13 to 19) performed exercise tests of functional capaci…

EFFECTS OF A SPECIFIC FLEXIBILITY TRAINING PROGRAM ON SPINAL RANGE OF MOTION IN OLDER WOMEN

Introduction Aging-related reduced spinal mobility can interfere with the execution of important functional skills and activities in elderly women. However there is a lack of studies about the effects of range of motion exercises on flexibility outcomes in older populations and a lack of consensus regarding the prescription of stretching exercises for older adults (ACSM, 2009). For these reasons the purpose of this study was to examine the extent to which spinal extension and flexion could be improved in a population of older women participating in a 8-week flexibility training program. Methods Thirty female volunteers were cluster randomized into either a control group [CG] (n: 13; age: 69…

Comparison of the effects of massage with mineral oil or ozonated oil bioperoxoil© on blood lactate, stress percevied and heart rate in cyclists

Muscular fatigue is a factor that influence heavily performance of athletes. There is a lack of data about effect of massage with substances “ad hoc”. The aim of our research was to investigate the effect of application of ozonated oil on some parameters linked to fatigue in cyclists. 30 cyclists male was divided in two groups of 15 (PLO= placebo oil; OZO=ozonated Oil). Subjects was submitted in two different session to work protocol that consist in a rectangular test on cyclergometer followed by 30’ of rest. After the rest athletes performed an incremental test. HR (heart rate), Wmax (Watt maximal), RPE (rate of Perceived Exertion) and Lab(Blood Lactate) was misured at the end and after 5’…

COMPARISON OF VERTICAL JUMPING PERFORMANCE AMONG YOUNG SEDENTARY SUBJECTS, BASKETBALL AND VOLLEYBALL PLAYERS

Introduction: The ability to jump high is considered important in a number of sports. It is commonly accepted that the use of the arms increases jump height (I). In particular, in some sport situations such as basketball and volleyball the ability to utilize arm swing is fundamental in order that players may reach the maximum performance. Instead, sedentary subjects are not usually able to utilize efficiently upper-limb motion compare to active people during vertical jumping performance. The purpose of this study was to examine flight time (sec.) [Ft], jump height (cm) [Jh] during vertical jumping by countermovement [CMJ] with and without arm swing in young, sedentary subjects and basketbal…

IS HYPOXIA A TRAINING STIMULUS FOR ENDURANCE ATHLETES’ PERFORMANCE? A BRIEF REVIEW.

ABSTRACT: Background. There is increasing popularity among elite athletes to endorse altitude training to enhance performance levels. Altitude training may be used for enhanced performance at sea level, or to acclimatise to a competition at altitude. Enhancement of muscle oxidative capacity, muscle glycolytic capacity, skeletal muscle oxygenation, oxygen transport and storage within the muscle, and hormonal regulation have been reported with altitude training. Aim. The aim of this review is to analyse current knowledge on hypoxic training and its possible relation to enhanced endurance performance. This paper will consider factors including the process of enhanced sea level performance in r…

Il fitness in gravidanza

MECCANISMI FISIOLOGICI E STRUMENTALI DI PROTEZIONE DEL RACHIDE DURANTE LA PRATICA DEL FITNESS

La protezione del rachide durante l’esecuzione di esercizi con sovraccarichi nella pratica del Fitness, al di là di ovvie e banali raccomandazioni, sull’entità del carico e sul mantenimento delle curve fisiologiche, spesso non viene adeguatamente sottolineata. Ancor meno vengono evidenziate le implicazioni della respirazione e del meccanismo della cosìdetta IAP (Intra Abdominal Pressure) sulla protezione del rachide sotto carico e durante esercizio. In questa review vengono analizzati gli studi, compresi quelli basilari e pioneristici di Nachemson, sui meccanismi fisiologici di protezione del rachide da sollecitazioni compressive durante l’esecuzione di esercizi; viene inoltre analizzata l’…

Handgrip strength and 1RM bench press performance: a novel approach to evaluate upper body maximal strength

In the last few years, handgrip strength has been widely recognized as a relevant indicator of physical function, nutritional status and quality of life in a clinical population. However, the scientific literature is still lacking of knowledge regarding the use of this indicator within a general healthy and physically active population. The possibility to use the handgrip strength as an indicative value of some specific physical qualities, such as the upper body maximal strength (expressed in terms of 1RM bench press), can be considered an unexplored field and its development might represent a relevant support for the strength and conditioning professionals. Therefore, we hypothesize that a…

Pediatric exercise programs in children with hematological cancer: a systematic review

In the world today, there are roughly 25 million cancer survivors. Progress in treatments have greatly improved cure rates, with 5-year survival now approaching 80%, but are associated with numerous negative physical and psychological side-effects and a deterioration in the quality of future life. Cancer survivors are at increased risk for second cancers, other forms of comorbidity (e.g., cardiovascular disease, diabetes, osteoporosis), and functional decline. Lifestyle factors, such as a healthy diet, regular exercise, and smoking cessation may prevent these conditions and improve survivors’ quality of life. Observational research has shown that the physical activity levels of survivors of…

Search for eccentric binary black hole mergers with advanced LIGO and advanced Virgo during their first and second observing runs

When formed through dynamical interactions, stellar-mass binary black holes may retain eccentric orbits ($e&gt;0.1$ at 10 Hz) detectable by ground-based gravitational-wave detectors. Eccentricity can therefore be used to differentiate dynamically-formed binaries from isolated binary black hole mergers. Current template-based gravitational-wave searches do not use waveform models associated to eccentric orbits, rendering the search less efficient to eccentric binary systems. Here we present results of a search for binary black hole mergers that inspiral in eccentric orbits using data from the first and second observing runs (O1 and O2) of Advanced LIGO and Advanced Virgo. The search uses min…

A Standard Siren Measurement of the Hubble Constant from GW170817 without the Electromagnetic Counterpart

We perform a statistical standard siren analysis of GW170817. Our analysis does not utilize knowledge of NGC 4993 as the unique host galaxy of the optical counterpart to GW170817. Instead, we consider each galaxy within the GW170817 localization region as a potential host; combining the redshift from each galaxy with the distance estimate from GW170817 provides an estimate of the Hubble constant, $H_0$. We then combine the $H_0$ values from all the galaxies to provide a final measurement of $H_0$. We explore the dependence of our results on the thresholds by which galaxies are included in our sample, as well as the impact of weighting the galaxies by stellar mass and star-formation rate. Co…

HUMAN BALANCE EVALUATION IN SUBJECTS WITH CERVICAL INJURIES COMPARED TO HEALTHY SUBJECTS: RESULTS OF A PILOT STUDY

Introduction It is very important that forensic medicine properly calculates the biological damage not only through the disturbance indicated by the patient, but more accurately through instrumental diagnosis. Our aim was to verify through posturography the qualitative and quantitative alterations of postural stability in subjects with cervical trauma, compared to the control group. Methods We analysed 78 subjects, selecting 42 volunteers and distinguishing a control group of 22 normal men (NM) and a group of 20 men (WM) with a positive anamnesis of whiplash injury for six months. Through a force platform, we recorded the Centre of Pressure (CoP) movements of these groups, both with their e…

Self-Esteem and body-image in individuals practicing fitness activities

PARADOXICAL EFFECT OF RESISTANCE TRAINING AND HIGH PROTEIN DIET ON PLASMA MYOSTATIN RESPONSE TO EXERCISE

Introduction In recent years, a mounting amount of evidence have suggested that contracting muscle can act as a cytokine producing organ that may influence metabolism (Pedersen 2010). Myostatin (MSTN) relationship with body fat amount, training status and nutrition has been widely investigated but with conflicting results. Although MSTN inhibits the Akt/mTor pathway some studies have shown also an counterintuitive positive correlation between MSTN and muscle mass (myostatin paradox). Moreover MSTN has been shown to reduce IGF-1 stimulated AKT phosphorylation in a dose-dependent manner. We investigated the influence of two months of resistance training (RT) and high protein diet on plasma my…

Search for Subsolar Mass Ultracompact Binaries in Advanced LIGO's Second Observing Run

We present a search for subsolar mass ultracompact objects in data obtained during Advanced LIGO’s second observing run. In contrast to a previous search of Advanced LIGO data from the first observing run, this search includes the effects of component spin on the gravitational waveform. We identify no viable gravitational-wave candidates consistent with subsolar mass ultracompact binaries with at least one component between \ud0.2\ud \ud \udM\ud⊙\ud–\ud1.0\ud \ud \udM\ud⊙\ud. We use the null result to constrain the binary merger rate of (\ud0.2\ud \ud \udM\ud⊙\ud, \ud0.2\ud \ud \udM\ud⊙\ud) binaries to be less than \ud3.7\ud×\ud10\ud5\ud \ud \udGpc\ud−\ud3\ud \udyr\ud−\ud1\udand the binary …

Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A

On 2017 August 17, the gravitational-wave event GW170817 was observed by the Advanced LIGO and Virgo detectors, and the gamma-ray burst (GRB) GRB 170817A was observed independently by the Fermi Gamma-ray Burst Monitor, and the Anticoincidence Shield for the Spectrometer for the International Gamma-Ray Astrophysics Laboratory. The probability of the near-simultaneous temporal and spatial observation of GRB 170817A and GW170817 occurring by chance is $5.0\times 10^{-8}$. We therefore confirm binary neutron star mergers as a progenitor of short GRBs. The association of GW170817 and GRB 170817A provides new insight into fundamental physics and the origin of short gamma-ray bursts. We use the ob…

Increasing the Astrophysical Reach of the Advanced Virgo Detector via the Application of Squeezed Vacuum States of Light

Current interferometric gravitational-wave detectors are limited by quantum noise over a wide range of their measurement bandwidth. One method to overcome the quantum limit is the injection of squeezed vacuum states of light into the interferometer's dark port. Here, we report on the successful application of this quantum technology to improve the shot noise limited sensitivity of the Advanced Virgo gravitational-wave detector. A sensitivity enhancement of up to 3.2±0.1 dB beyond the shot noise limit is achieved. This nonclassical improvement corresponds to a 5%-8% increase of the binary neutron star horizon. The squeezing injection was fully automated and over the first 5 months of the thi…

THE USE OF SPORTS DRINKS IN SPORTS AND FITNESS AMBIT

Introduction Sport drinks are beverages aimed at rehydrating the body, restoring the electrolytes (Na, K, Mg, Ca, Cl, P) and energy reinstatement (carbohydrates and other nutrients). As is well established in research5, the concentration of these substances decreases as a result of sustained strain and, in some cases, these can even finish and alter the organic functionality1,7. Sport drinks were born for the purpose of performance and are classified based on their concentration/litre in isotonic beverages (with an electrolytic composition more or less similar to body fluids [about 300 mOsm /L] with medium – rapid assimilation), hypotonic beverage (with an electrolytic composition lower tha…

GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs

We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1$\mathrm{M}_\odot$ during the first and second observing runs of the Advanced gravitational-wave detector network. During the first observing run (O1), from September $12^\mathrm{th}$, 2015 to January $19^\mathrm{th}$, 2016, gravitational waves from three binary black hole mergers were detected. The second observing run (O2), which ran from November $30^\mathrm{th}$, 2016 to August $25^\mathrm{th}$, 2017, saw the first detection of gravitational waves from a binary neutron star inspiral, in addition to the observation of gravitational waves from a total of seven binary …

INFLUENCE OF FAMILY HISTORY OF TYPE 2 DIABETES ON PHENOTYPE AND PERFORMANCE IN YOUNG PEOPLE OF BOTH SEX.

The type 2 diabetes is commonly considered a complex genetic disease, resulting from interactions between multiple genes and environmental factors without any single factor having strong independent effects. We studied the influence of family history to type 2 diabetes on physical phenotype of 47 health adolescents. In both sexes groups with positive family history (FH+) had the highest values of stature and body weight (p<0.05 for males, not significant for females), waist circumference (p<0.05 for males, not significant for females), and wrist circumference (p=0.05 for males, not significant for females). Considering performance, FH+ males showed a significant higher performance in power …