Snippit Sports Science Podcast

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    Since 2008, Dr. Adam Storey has coached and managed various New Zealand weightlifting teams at key pinnacle events including the 2012 and 2016 Olympic Games and the 2010 and 2014 Commonwealth Games. During this time, Adam has coached weightlifters to Commonwealth Games medals and his athletes have broken over 250 New Zealand records in competition.   Adam’s specialist background in the area of strength and power conditioning lead to his role with High Performance Sport New Zealand as the Lead Strength and Conditioning Specialist for Athletics New Zealand. In this position he worked directly with 3 x Olympic Games medallist Valerie Adams.   Adam has a keen passion for rugby and he is currently employed by the Blues Super Rugby franchise as the Sports Science Manager and Assistant Trainer.   In addition to his role with the Blues, Adam is a Research Fellow within AUT’s SPRINZ departme

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    Now that we are a few episodes in, we’ve had some great interactions with listeners. Some of the feedback received was that although the information in the papers that we spoke about was fantastic, the underlying mechanisms and information behind these papers would be beneficial.  One of the areas that we've had a great response to is Blood Flow Restriction training.  Hence, our first Snippit is on the use of localised (BFR) versus systemic (hypoxic chamber) hypoxia for resistance training. We enjoy your interactions and comments so please keep them coming.    Sports Med. 2014 Aug; 44(8):1037-54 https://link.springer.com/article/10.1007%2Fs40279-014-0177-7   Hypoxia and resistance exercise: a comparison of localized and systemic methods. Scott BR, Slattery KM, Sculley DV, Dascombe BJ   Abstract   It is generally believed that optimal hypertrophic and strength gains are induced through

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    Now that we are a few episodes in, we’ve had some great interactions with listeners. Some of the feedback received was that although the information in the papers that we spoke about was fantastic, the underlying mechanisms and information behind these papers would be beneficial.  One of the areas that we've had a great response to is Blood Flow Restriction training.  Hence, our first Snippit is on the use of localised (BFR) versus systemic (hypoxic chamber) hypoxia for resistance training. We enjoy your interactions and comments so please keep them coming.    Sports Med. 2014 Aug; 44(8):1037-54 https://link.springer.com/article/10.1007%2Fs40279-014-0177-7   Hypoxia and resistance exercise: a comparison of localized and systemic methods. Scott BR, Slattery KM, Sculley DV, Dascombe BJ   Abstract   It is generally believed that optimal hypertrophic and strength gains are induced through

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    Now that we are a few episodes in, we’ve had some great interactions with listeners. Some of the feedback received was that although the information in the papers that we spoke about was fantastic, the underlying mechanisms and information behind these papers would be beneficial.  One of the areas that we've had a great response to is Blood Flow Restriction training.  Hence, our first Snippit is on the use of localised (BFR) versus systemic (hypoxic chamber) hypoxia for resistance training. We enjoy your interactions and comments so please keep them coming.    Sports Med. 2014 Aug; 44(8):1037-54 https://link.springer.com/article/10.1007%2Fs40279-014-0177-7   Hypoxia and resistance exercise: a comparison of localized and systemic methods. Scott BR, Slattery KM, Sculley DV, Dascombe BJ   Abstract   It is generally believed that optimal hypertrophic and strength gains are induced through

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    This is one of many papers from Prof. Christian Cook and Co.  On many levels, these papers encapsulate the pragmatic application of sports science in the elite training environment:   Journal of Science and Medicine in Sport Volume 17, Issue 3, May 2014, Pages 317-321   Morning based strength training improves afternoon physical performance in rugby union players   Christian J. Cook Liam P. Kilduff Blair T. Crewther Martyn Beaven Daniel J. West   https://doi.org/10.1016/j.jsams.2013.04.016   Abstract   Objectives To determine if a morning training session could alter afternoon physical performance. Moreover, as testosterone (T) and cortisol (C) concentrations are significant predictors of physical performance, and both show circadian declines across the day, we examined the effects of morning training on diurnal T and C responses.   Design Eighteen semi-professional rugby union players

  Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    The Journal of Physiology Volume 595, Issue 24   Post‐exercise recovery of contractile function and endurance in humans and mice is accelerated by heating and slowed by cooling skeletal muscle   Arthur J. Cheng  Sarah J. Willis  Christoph Zinner  Thomas Chaillou  Niklas Ivarsson  Niels Ørtenblad  Johanna T. Lanner  Hans‐Christer Holmberg  Håkan Westerblad   First published: 04 October 2017 https://doi.org/10.1113/JP274870 Linked articles: This article is highlighted by a Perspective by Allen. To read this Perspective, visit https://doi.org/10.1113/JP275370. Edited by: Michael C. Hogan & Bruno Grassi   Key points We investigated whether intramuscular temperature affects the acute recovery of exercise performance following fatigue‐induced by endurance exercise. Mean power output was better preserved during an all‐out arm‐cycling exercise following a 2 h recovery period in which the

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience      Here is this is one of many papers from Prof. Christian Cook and Co.  We love reading these types of papers as they are really applied and use elite athletes:   Changes in salivary testosterone concentrations and subsequent voluntary squat performance following the presentation of short video clips Christian J. Cook Blair T. Crewther   https://doi.org/10.1016/j.yhbeh.2011.09.006   Abstract Previous studies have shown that visual images can produce rapid changes in testosterone concentrations.   We explored the acute effects of video clips on salivary testosterone and cortisol concentrations and subsequent voluntary squat performance in highly trained male athletes (n = 12). Saliva samples were collected on 6 occasions immediately before and 15 min after watching a brief video clip (approximately 4 min in duration) on a computer screen. The watching of a sad, erotic, aggressive, trai

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    Nutritional strategies of high level natural bodybuilders during competition preparation J. Chappell Simper E. Barker   Journal of the International Society of Sports Nutrition 2018 15:4 https://doi.org/10.1186/s12970-018-0209-z © The Author(s). 2018 Published: 15 January 2018   Abstract   Background Competitive bodybuilders employ a combination of resistance training, cardiovascular exercise, calorie reduction, supplementation regimes and peaking strategies in order to lose fat mass and maintain fat free mass. Although recommendations exist for contest preparation, applied research is limited and data on the contest preparation regimes of bodybuilders are restricted to case studies or small cohorts. Moreover, the influence of different nutritional strategies on competitive outcome is unknown.   Methods Fifty-one competitors (35 male and 16 female) volunteered to take part in

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    Early Hum Dev. 2016 Sep; 100:21-5 https://www.sciencedirect.com/science/article/pii/S0378378216300123 Epub 2016 Jul 6   Digit ratio (2D:4D), testosterone, cortisol, aggression, personality and hand-grip strength: Evidence for prenatal effects on strength. Ribeiro E Jr, Neave N, Morais RN, Kilduff L, Taylor SR, Butovskaya M, Fink B, Manning JT   Abstract   BACKGROUND: Digit ratio (2D:4D) is a putative marker for prenatal testosterone and is correlated with performance in many sports. Low 2D:4D has been linked to strength but the evidence is mixed and strength is also influenced by mass, testosterone, and behavioural factors. It has been hypothesised that the 2D:4D-strength correlation may be strongest in challenge conditions when short-term changes occur in steroid hormones.   AIMS: We tested this suggestion in men.   STUDY DESIGN: We used a cross-over study design with a challenge (an

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    It was great having Alex Natera on our podcast last week.  We believe that having an author on the podcast gave a greater depth into the article itself.  We hope to have more of these special guests as time and availability permits.   Today’s podcast discusses the paper: European Journal of Applied Physiology February 2016, Volume 116, Issue 2, pp 395–404 https://link.springer.com/article/10.1007/s00421-015-3294-6   Post-warm-up muscle temperature maintenance: blood flow contribution and external heating optimisation Margherita Raccuglia Alex Lloyd Davide Filingeri Steve H. Faulkner Simon Hodder George Havenith First Online: 21 November 2015   Abstract   Purpose Passive muscle heating has been shown to reduce the drop in post-warm-up muscle temperature (T m) by about 25 % over 30 min, with concomitant sprint/power performance improvements. We sought to determine the role of leg blood f

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    We are very excited to have Alex Natera PhDc  on our podcast.  This is the first time we’ve brought in the author of the article to provide insight into their work. Chris and Alex first crossed paths in 2008, and they really enjoyed catching up.  Alex is putting some great content out on both Twitter @alex_natera and Instagram @alex.natera, so do yourself a favour and give him a follow. It is great to see someone continually improving their craft.   We aim to continue interviewing authors over time, so stayed tuned for our next guest author.  In the meantime, today’s podcast looks at how environmental conditions affect the 30-15IFT results.  Please enjoy:     J Strength Cond Res. 2019 Feb; 33(2):486-491 https://insights.ovid.com/crossref?an=00124278-201902000-00023    Influence of Environmental Conditions on Performance and Heart Rate Responses to the 30-15 Incremental Fitness Test

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience    Thanks to everyone for tuning in.  We are really enjoying putting these podcasts together for you.  Next week we see a slight change to our usual format with our first guest author – Dr. Alex Natera.   Onto this week’s podcast: J Strength Cond Res. 2016 Aug; 30(8):2324-9 https://insights.ovid.com/crossref?an=00124278-201608000-00031   Acute Effects of Different Methods of Stretching and Specific Warm-ups on Muscle Architecture and Strength Performance. Sá MA, Matta TT, Carneiro SP, Araujo CO, Novaes JS, Oliveira LF.   Abstract   The purpose of the study was to investigate the acute effects of 2 stretching interventions, proprioceptive neuromuscular facilitation (PNF) and passive static stretching (PSS), and a specific warm-up (SW) on the strength and architecture of the vastus laterallis and biceps femoris muscles in a subsequent performance on a strength training session (STS).   Musc

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience      Five weeks and we must say thank you to everyone who has been listening into our podcast.  We feel a small community of listeners growing, and we appreciate you tuning in. This podcast looks into how BFR can assist muscle hypertrophy in the bench press.  Both Chris and Jared have personally reaped the benefits of BFR training, and this study is great as it’s something that we both enjoy.     Clin Physiol Funct Imaging. 2010 Sep; 30(5):338-43 https://onlinelibrary.wiley.com/doi/full/10.1111/j.1475-097X.2010.00949.x Epub 2010 Jul 4   Effects of low-intensity bench press training with restricted arm muscle blood flow on chest muscle hypertrophy: a pilot study.   Yasuda T, Fujita S, Ogasawara R, Sato Y, Abe T.   Abstract   Single-joint resistance training with blood flow restriction (BFR) results in significant increases in arm or leg muscle size and single-joint strength. However, the e

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience      This article gained some publicity on twitter recently. We had a great time reading it and going through this paper. Language warning: This podcast contains a swear word.     Effect of swearing on strength and power performance ☆ Richard Stephens, David K. Spierer, Emmanuel Katehis https://doi.org/10.1016/j.psychsport.2017.11.014   Highlights Shows that swearing can increase performance of a task of physical power. Shows that swearing can increase performance of a task of physical strength. Does not find any evidence that autonomic arousal may underlie these effects.   Abstract   Objectives Swearing aloud increases pain tolerance. The hypothesis that this response may be owed to an increase in sympathetic drive raises the intriguing question as to whether swearing results in an improvement in strength and power.   Design Employing repeated measures designs, we evaluated the effect of

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience      Welcome everyone to Episode 3 of our podcast journey. We hope you’ve enjoyed our podcast thus far.  If you like it, share and tell your friends.  It would also be great to create further discussion about these article so please leave a comment.  We’d love to hear what you think of our podcast.   Today’s podcast: Clin Physiol Funct Imaging. 2015 May; 35(3):197-202 https://onlinelibrary.wiley.com/doi/full/10.1111/cpf.12147 Epub 2014 Apr 1   Effects of resistance training under hypoxic conditions on muscle hypertrophy and strength. Kurobe K, Huang Z, Nishiwaki M, Yamamoto M, Kanehisa H, Ogita F   Abstract It has been reported that exercise under hypoxic conditions elevates acute growth hormone secretion after exercise compared with that under normoxic conditions. This study examined the influence of resistance training under moderate hypoxic conditions on muscle thickness, strength and

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience      We hope you enjoyed our first podcast. As we mentioned in the first episode, this podcast has been the culmination of quite a long time talking about this concept. To see this come to fruition gives us both a big buzz.  As with all podcasts, we realise that the content is important but also how it is packaged together.  We have some cool ideas to keep this concept fresh so stay tuned. This week’s podcast delves into the concept of passive heat maintenance (PHM) in elite swimmers.  The concept of PHM around warm-up and competitive performance is simple: One of the benefits of warm-up is an increase in muscle temperature From cessation of warm-up, we start to lose muscle temperature For every 1 degree C in muscle temperature we lose (or gain), there is a 4% loss (or gain) in power output Within 20 min, you can lose 45% of heat gained by warm-up, and by 45 min, any gain in muscle temper

Snippit is made possible by listeners like you. Please help support the podcast: ► https://www.patreon.com/snippitscience      Welcome everyone to our very first podcast. We are so excited to finally get our first episode out to you all. As a quick introduction to the podcast, our goal is to present and discuss relevant sports science articles. Designed to give you a “Snippit” of the article we aim to cover topics in about 10-20 minutes. We see that as a good amount of time to get a feel for the article – plus we know how valuable your time is. We really hope you enjoy our first podcast and you come along on our journey.   The article we're covering is:Growth Horm IGF Res. 2015 Jun; 25(3):121-6https://www.sciencedirect.com/science/article/pii/S1096637415000234Epub 2015 Apr 12   Hormonal and metabolic responses to repeated cycling sprints under different hypoxic conditions   Kon M, Nakagaki K, Ebi Y, Nishiyama T, Russell AP   Abstract   OBJECTIVE: Sprint exercise and hypoxic stimulus during exercise are poten