Search results for "PROTEIN SUPPLEMENT"

Branched-Chain Amino Acid Deprivation Decreases Lipid Oxidation and Lipogenesis in C2C12 Myotubes

2022

Impaired lipid metabolism is a common risk factor underlying several metabolic diseases such as metabolic syndrome and type 2 diabetes. Branched-chain amino acids (BCAAs) that include valine, leucine and isoleucine have been proven to share a role in lipid metabolism and hence in maintaining metabolic health. We have previously introduced a hypothesis suggesting that BCAA degradation mechanistically connects to lipid oxidation and storage in skeletal muscle. To test our hypothesis, the present study examined the effects of BCAA deprivation and supplementation on lipid oxidation, lipogenesis and lipid droplet characteristics in murine C2C12 myotubes. In addition, the role of myotube contract…

A web-based survey about protein supplementation amongst net-surfers. An innovative approach using Protein Project Google App©

2012

Web surveys present methodological challenges including lower response rates as compared to other survey methods like face to face interview, self reports using questionnaire and phone interview. The efficacy and appropriateness of design elements of invitations to participate in a web survey is not yet well understood for many reasons. To understand the feasibility of this innovative approach, an experiment (Protein Project) with key questions regarding protein supplementation was set up according to previous findings (Goston et al. 2004; Bianco et al. 2011). A Google App© was used to generate a questionnaire with seven-items and subsequently the created form was redirected to various soci…

Protein supplements consumption: a comparative study between the city centre and the suburbs of Palermo, Italy

2014

Background: Protein supplements are extensively used among commercial gym users and athletes. Although demographic information amongst such consumption has been poorly investigated. The aim of this study is to compare protein supplement consumption in commercial gym users, both from the city centre and the suburbs of Palermo, Italy. Methods: A face-to-face questionnaire has been administered to 561 subjects. 207 from the city centre (CC) and 354 from the suburbs (SB) of Palermo, Italy. Protein supplement consumption, frequency of use and association with other dietary supplements has been investigated. Subsequently frequency distribution has been used for demographic assessment. Results: 30…

Erratum to “Protein supplement consumption is linked to time spent exercising and high-protein content foods: A multicentric observational study” [He…

2019

Protein supplementation and dietary behaviours of resistance trained men and women attending commercial gyms: a comparative study between the city ce…

2014

Background: It is anecdotally recognized that commercial gym users assume supplements in order to improve performance or health. However, dietary behaviours of people and athletes attending commercial gyms have been poorly studied. The exact amount and frequency of dietary supplements consumption are still needed to be investigated. The main purpose of this study is to understand the quantity and quality of food intake, as well as dietary supplementation in people attending commercial gyms. Secondly to compare the city centre and the suburbs of Palermo, Italy. Methods: A face-to-face questionnaire was administered to 561 subjects, 207 from the city centre (CC) and 354 from the suburbs (SB) …

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

2011

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…

Perspective: Protein Supplementation in Frail Older Persons: Often Necessary but Not Always Sufficient

2013

Use of dietary supplements and dietary behaviour among young people who exercise at gyms

2008

Effects of protein supplementation in fitness world: A 12-week cross-over studio

2020

The aim of this project was to evaluate the effect of isolated protein supplementation in young amateur athletes. Sixteen subjects aged between 20 and 30 were recruited for this study. Before to start sports performance was assessed at T0, in all subjects, using physical performance test and evaluated body composition. Therefore, the subjects were randomly assigned in two groups (group A and B) of 8 subjects each. The group A start to intake 30 g of protein powder diluted in water after each training session (3 times a week) for six weeks (T0) whilst the group B was the placebo. After 6 weeks (T1), the measurement were repeated for all subjects and the group A became placebo and the group B…

The use of protein supplementation among fitness center attendees. The protein project

2014

Nowadays, in a gym context we may find three people among ten who declare protein supplements consumption. Health, physical fitness, self esteem, performance and muscle hypertrophy are usually the main reasons inducing such kind of consumption. It well documented that particularly active individuals use supplements to build muscle, gain strength or prevent future diseases and illnesses. Furthermore, scientific researchers have shown that in general people have different opinions about the use of supplements and the appropriate food to eat. As reported by Bianco and colleagues in 2011, proteins are the most widely ingested supplements in people attending commercial gyms and supplement users …