 
            
                                                                Silver Contributor
                                                    
                        
                            15,730 Points
                        
                    Contributions by role
Contributions by subject area
                                    Silver Contributor
                            
                        
                    
                    Justin WL Keogh
    PeerJ Editor, Author & Reviewer
                    Summary
A/Prof Keogh's primary research interests focus on the role of muscular hypertrophy, strength and power in functional performance; and how to optimise the transfer from training via motor learning principles. Portions of this research focus on strength and power sports such as strongman, powerlifting, rugby and Australian rules football. Considerable research also focuses on older adults with chronic diseases/geriatric conditions e.g. cancer and sarcopenia, with prostate cancer and residential aged care (nursing homes) being a focus. Some of the older adult research also uses quantitative and qualitative approaches to examine the perceived barriers, facilitators, risks and benefits of exercise in these chronic disease groups.
Editorial Board Member
PeerJ - the Journal of Life & Environmental Sciences
                
                    Past or current institution affiliations
Work details
Associate Professor, Exercise and Sports Science
            
                            Bond University
                        
        
        
                    Faculty of health Sciences and Medicine
        
            PeerJ Contributions
October 4, 2024
    
    
    
                    Alex O. Natera,                     Steven Hughes,                     Dale W. Chapman,                     Neil D. Chapman,                     Justin W.L. Keogh            
            March 19, 2024
    
    
    
                    Hritika D. Pai,                     Stephen Rajan Samuel,                     K. Vijaya Kumar,                     Charu Eapen,                     Alicia Olsen,                     Justin W.L. Keogh            
            March 8, 2024
    
    
    
                    Rachita Gururaj,                     Stephen Rajan Samuel,                     K Vijaya Kumar,                     Ravishankar Nagaraja,                     Justin W.L. Keogh            
            January 23, 2024
    
    
    
                    Alex O. Natera,                     Dale W. Chapman,                     Neil D. Chapman,                     Justin W.L. Keogh            
            June 20, 2023
    
    
    
                    Alex O. Natera,                     Dale W. Chapman,                     Neil D. Chapman,                     Justin W.L. Keogh            
            March 13, 2023
    
    
    
                    Braedan R. van der Vegt,                     Adrian Gepp,                     Justin W.L. Keogh,                     Jessica B. Farley            
            November 21, 2022
    
    
    
                    James A. Ross,                     Justin W. L. Keogh,                     Christian Lorenzen            
            May 27, 2022
    
    
    
                    Madhura S. Jamsandekar,                     Vivek Dineshbhai Patel,                     Ashish J. Prabhakar,                     Charu Eapen,                     Justin W.L. Keogh            
            May 23, 2022
    
    
    
                    Hritika D. Pai,                     Stephen Rajan Samuel,                     K. Vijaya Kumar,                     Namrata S. Chauhan,                     Charu Eapen,                     Alicia Olsen,                     Justin W.L. Keogh            
            September 17, 2021
    
    
    
                    Maximiliano A. Torres-Banduc,                     Daniel Jerez-Mayorga,                     Jason Moran,                     Justin W.L. Keogh,                     Rodrigo Ramírez-Campillo            
            September 1, 2021
    
    
    
                    Benjamin Hindle,                     Anna Lorimer,                     Paul Winwood,                     Daniel Brimm,                     Justin W.L. Keogh            
            February 24, 2021
    
    
    
                    Shiqi Thng,                     Simon Pearson,                     Justin W.L. Keogh            
            October 13, 2020
    
    
    
                    Dean Ritchie,                     Justin W.L. Keogh,                     Peter Reaburn,                     Jonathan D. Bartlett            
            June 1, 2020
    
    
    
                    Shiqi Thng,                     Simon Pearson,                     Evelyne Rathbone,                     Justin W.L. Keogh            
            March 11, 2020
    
    
    
                    Amador García-Ramos,                     Danica Janicijevic,                     Jorge M. González-Hernández,                     Justin W.L. Keogh,                     Jonathon Weakley            
            February 26, 2020
    
    
    
                    Namrata S. Chauhan,                     Stephen Rajan Samuel,                     Niranjan Meenar,                     PU Prakash Saxena,                     Justin W.L. Keogh            
            November 27, 2019
    
    
    
                    Justin W.L. Keogh,                     Tim Henwood,                     Paul A. Gardiner,                     Anthony G. Tuckett,                     Sharon Hetherington,                     Kevin Rouse,                     Paul Swinton            
            June 4, 2019
    
    
    
                    Samantha Fien,                     Tim Henwood,                     Mike Climstein,                     Evelyne Rathbone,                     Justin W.L. Keogh            
            October 30, 2018
    
    
    
                    Anna V. Lorimer,                     Justin W.L. Keogh,                     Patria A. Hume            
            July 13, 2018
    
    
    
                    Jun Mizushima,                     Keitaro Seki,                     Justin W.L. Keogh,                     Kei Maeda,                     Atsushi Shibata,                     Hiroyuki Koyama,                     Keigo Ohyama-Byun            
            June 7, 2018
    
    
    
                    Wade J. Chalker,                     Anthony J. Shield,                     David A. Opar,                     Evelyne N. Rathbone,                     Justin W.L. Keogh            
            May 9, 2018
    
    
    
                    Justin W. Keogh,                     Josephine Grigg,                     Christopher J. Vertullo            
            April 12, 2018
    
    
    
                    Bernard X.W. Liew,                     Christopher C. Drovandi,                     Samuel Clifford,                     Justin W.L. Keogh,                     Susan Morris,                     Kevin Netto            
            March 8, 2018
    
    
    
                    James Furness,                     Ben Schram,                     Alistair J. Cox,                     Sarah L. Anderson,                     Justin Keogh            
            September 7, 2017
    
    
    
                    Samantha Fien,                     Mike Climstein,                     Clodagh Quilter,                     Georgina Buckley,                     Timothy Henwood,                     Josie Grigg,                     Justin W.L. Keogh            
            March 29, 2017
    
    
    
                    James A. Ross,                     Justin W.L. Keogh,                     Cameron J. Wilson,                     Christian Lorenzen            
            May 18, 2016
    
    
    
                    Samantha Fien,                     Timothy Henwood,                     Mike Climstein,                     Justin William Leslie Keogh            
            February 18, 2016
    
    
    
                    Wade J. Chalker,                     Anthony J. Shield,                     David A. Opar,                     Justin W.L. Keogh            
            November 10, 2015
    
    
    
                    Petra G. Puhringer,                     Alicia Olsen,                     Mike Climstein,                     Sally Sargeant,                     Lynnette M. Jones,                     Justin W.L. Keogh            
            May 28, 2015
    
    
    
                    Justin W.L. Keogh,                     Barry R. Palmer,                     Denise Taylor,                     Andrew E. Kilding            
            November 6, 2016 - Version: 1
    
    
    
                    James A Ross,                     Justin W L Keogh,                     Cameron J Wilson,                     Christian Lorenzen            
            Academic Editor on
December 16, 2024
    
    
    
                    Mshari Alghadier,                     Nada Almasoud,                     Dalia Alharthi,                     Omar Alrashdi,                     Reem Albesher            
            January 22, 2024
    
    
    
                    Max Coleman,                     Ryan Burke,                     Francesca Augustin,                     Alec Piñero,                     Jaime Maldonado,                     James P. Fisher,                     Michael Israetel,                     Patroklos Androulakis Korakakis,                     Paul Swinton,                     Douglas Oberlin,                     Brad J. Schoenfeld            
            December 14, 2023
    
    
    
                    Sumedha Verma,                     Prerna Varma,                     Aimee Brown,                     Bei Bei,                     Rosemary Gibson,                     Tom Valenta,                     Ann Pietsch,                     Marina Cavuoto,                     Michael Woodward,                     Susan McCurry,                     Melinda L. Jackson            
            March 7, 2023
    
    
    
                    Valéria Feijó Martins,                     Luigi Tesio,                     Anna Simone,                     Andréa Kruger Gonçalves,                     Leonardo A. Peyré-Tartaruga            
            January 13, 2023
    
    
    
                    Francisco J. Moreno,                     David Barbado,                     Carla Caballero,                     Tomás Urbán,                     Rafael Sabido            
            November 3, 2022
    
    
    
                    Magdalena Zmudzka,                     Jerzy A. Zoladz,                     Joanna Majerczak            
            September 30, 2022
    
    
    
                    Álvaro Reina-Varona,                     Borja Rodríguez de Rivera-Romero,                     Carlos Donato Cabrera-López,                     José Fierro-Marrero,                     Irene Sánchez-Ruiz,                     Roy La Touche            
            August 2, 2022
    
    
    
                    Yichen Yang,                     Qin Zhang,                     Caihong He,                     Jing Chen,                     Danfeng Deng,                     Wenwen Lu,                     Yuming Wang            
            July 26, 2022
    
    
    
                    Guiping Jiang,                     Xueping Wu            
            April 26, 2022
    
    
    
                    Eduardo Caro,                     Miguel Ángel Campos-Vázquez,                     Manuel Lapuente-Sagarra,                     Toni Caparrós            
            April 5, 2022
    
    
    
                    Luz Adriana Varela-Vásquez,                     Montserrat Girabent-Farrés,                     Almudena Medina-Rincón,                     Sandra Rierola-Fochs,                     Javier Jerez-Roig,                     Eduard Minobes-Molina            
            February 17, 2022
    
    
    
                    Yohei Sawaya,                     Takahiro Shiba,                     Masahiro Ishizaka,                     Tamaki Hirose,                     Ryo Sato,                     Akira Kubo,                     Tomohiko Urano            
            November 26, 2021
    
    
    
                    Filip Kojic,                     Saša Ðurić,                     Igor Ranisavljev,                     Stanimir Stojiljkovic,                     Vladimir Ilic            
            September 24, 2021
    
    
    
                    Jason Sawyer,                     Paul Higgins,                     Paul A. Cacolice,                     Troy Doming            
            August 25, 2021
    
    
    
                    Sabrina Gabrielle Gomes Fernandes,                     Luiz Eduardo Lima de Andrade,                     Rafaella Silva dos Santos Aguiar Gonçalves,                     Saionara Maria Aires da Câmara,                     Ricardo Oliveira Guerra,                     Alvaro Campos Cavalcanti Maciel            
            July 23, 2021
    
    
    
                    Takuma Inai,                     Tomoya Takabayashi,                     Mutsuaki Edama,                     Masayoshi Kubo            
            June 29, 2021
    
    
    
                    Kornanong Yuenyongchaiwat,                     Sasikan Jongritthiporn,                     Kasarn Somsamarn,                     Oranat Sukkho,                     Sasipim Pairojkittrakul,                     Opas Traitanon            
            June 9, 2021
    
    
    
                    Javier González-Rosalén,                     Alba Cuerda-Del Pino,                     Mariana Sánchez-Barbadora,                     Rodrigo Martín-San Agustín            
            April 14, 2021
    
    
    
                    Toshinori Miyashita,                     Shintarou Kudo,                     Yoshihiro Maekawa            
            April 13, 2021
    
    
    
                    Ruichen Jiang,                     Fei Xie,                     Anmin Li            
            April 12, 2021
    
    
    
                    Ryan S. Alcantara,                     Evan M. Day,                     Michael E. Hahn,                     Alena M. Grabowski            
            April 5, 2021
    
    
    
                    Germán Cánovas-Ambit,                     José A. García-Vidal,                     Rodrigo Martín-San Agustín,                     Aurelio Arenas Dalla-Vecchia,                     Mariana Sánchez-Barbadora,                     Francesc Medina-Mirapeix            
            March 23, 2021
    
    
    
                    Pedro Jiménez-Reyes,                     Adrian Castaño-Zambudio,                     Víctor Cuadrado-Peñafiel,                     Jorge M. González-Hernández,                     Fernando Capelo-Ramírez,                     Luis M. Martínez-Aranda,                     Juan J. González-Badillo            
            November 27, 2020
    
    
    
                    Eduard Minobes-Molina,                     Maria Rosa Nogués,                     Montse Giralt,                     Carme Casajuana,                     Dyego Leandro Bezerra de Souza,                     Javier Jerez-Roig,                     Marta Romeu            
            November 18, 2020
    
    
    
                    Martin Kucharik,                     Zuzana Kosutzka,                     Jozef Pucik,                     Michal Hajduk,                     Marian Saling            
            November 12, 2020
    
    
    
                    Vanessa Aznar-Tortonda,                     Antonio Palazón-Bru,                     Vicente Francisco Gil-Guillén            
            October 28, 2020
    
    
    
                    Dian Ren,                     Nathanael Aubert-Kato,                     Emi Anzai,                     Yuji Ohta,                     Julien Tripette            
            October 28, 2020
    
    
    
                    Yiyang Chen,                     Jing Xian Li,                     Lin Wang            
            October 27, 2020
    
    
    
                    Dario Martinez-Garcia,                     Angela Rodriguez-Perea,                     Paola Barboza,                     David Ulloa-Díaz,                     Daniel Jerez-Mayorga,                     Ignacio Chirosa,                     Luis Javier Chirosa Ríos            
            October 9, 2020
    
    
    
                    Agnieszka Szczęsna,                     Monika Błaszczyszyn,                     Aleksandra Kawala-Sterniuk            
            September 28, 2020
    
    
    
                    Lichun Wang,                     Qingquan Lv,                     Xiaofei Zhang,                     Binyan Jiang,                     Enhe Liu,                     Chaoxing Xiao,                     Xinyang Yu,                     Chunhua Yang,                     Lei Chen            
            September 17, 2020
    
    
    
                    Banuvathy Rajakumar,                     Varadhan SKM            
            August 21, 2020
    
    
    
                    Miho Yoshimura,                     Tatsuya Hojo,                     Hayato Yamamoto,                     Misato Tachibana,                     Masatoshi Nakamura,                     Hiroaki Tsutsumi,                     Yoshiyuki Fukuoka            
            July 24, 2020
    
    
    
                    Gaynor Parfitt,                     Dannielle Post,                     Lisa Kalisch Ellett,                     Renly Lim,                     Alison Penington,                     Megan Corlis,                     Elizabeth Roughead            
            July 14, 2020
    
    
    
                    Frederik Rose Svarre,                     Mads Møller Jensen,                     Josephine Nielsen,                     Morten Villumsen            
            July 10, 2020
    
    
    
                    Qiuju Tian,                     Liyuan Qin,                     Weiyi Zhu,                     Shaojie Xiong,                     Beiwen Wu            
            June 29, 2020
    
    
    
                    Byungjoo Noh,                     Changhong Youm,                     Myeounggon Lee,                     Sang-Myung Cheon            
            June 23, 2020
    
    
    
                    Daniel J. Glassbrook,                     Joel T. Fuller,                     Jacqueline A. Alderson,                     Tim L.A. Doyle            
            June 9, 2020
    
    
    
                    Pedro Antonio Sánchez Miguel,                     David Sánchez Oliva,                     Mikel Vaquero Solís,                     J. J. Pulido,                     Miguel Angel Tapia Serrano            
            June 8, 2020
    
    
    
                    Michal Murawa,                     Anna Fryzowicz,                     Jaroslaw Kabacinski,                     Jakub Jurga,                     Joanna Gorwa,                     Manuela Galli,                     Matteo Zago            
            April 14, 2020
    
    
    
                    Eric Lichtenstein,                     Mareike Morat,                     Ralf Roth,                     Lars Donath,                     Oliver Faude            
            March 23, 2020
    
    
    
                    Yue Cao,                     Chunhua Zhang,                     Rong Guo,                     Dandan Zhang,                     Shijiao Wang            
            March 17, 2020
    
    
    
                    Åsa B. Tornberg,                     Katarina Lauruschkus            
            February 14, 2020
    
    
    
                    Lovro Štefan,                     Mario Kasović,                     Martin Zvonar            
            January 7, 2020
    
    
    
                    Biye Wang,                     Wei Guo            
            November 14, 2019
    
    
    
                    María Carrasco-Poyatos,                     Domingo J. Ramos-Campo,                     Jacobo A. Rubio-Arias            
            November 7, 2019
    
    
    
                    Manuel López-Nicolás,                     José A. García-Vidal,                     Francesc Medina-Mirapeix,                     Joaquín P. Sánchez-Onteniente,                     Juan D. Berná Mestre,                     Rodrigo Martín-San Agustín,                     María P. Escolar-Reina            
            October 25, 2019
    
    
    
                    Chengliang Wu,                     Weiya Hao,                     Qichang Mei,                     Xiaofei Xiao,                     Xuhong Li,                     Wei Sun            
            October 8, 2019
    
    
    
                    Alba Roda-Sales,                     Margarita Vergara,                     Joaquín L. Sancho-Bru,                     Verónica Gracia-Ibáñez,                     Néstor J. Jarque-Bou            
            September 12, 2019
    
    
    
                    Ferran Cuenca-Martínez,                     Roy La Touche,                     Jose Vicente León-Hernández,                     Luis Suso-Martí            
            August 20, 2019
    
    
    
                    Pablo Jorge Marcos-Pardo,                     Jorge Miguel González-Hernández,                     Amador García-Ramos,                     Abraham López-Vivancos,                     Pedro Jiménez-Reyes            
            August 7, 2019
    
    
    
                    Raúl Ferrer-Peña,                     Gonzalo Vicente-de-Frutos,                     Diego Flandez-Santos,                     Carlos Martín-Gómez,                     Carolina Roncero-Jorge,                     César Calvo-Lobo            
            July 26, 2019
    
    
    
                    Alexander Hammond,                     Craig Perrin,                     James Steele,                     Jürgen Giessing,                     Paulo Gentil,                     James P. Fisher            
            April 30, 2019
    
        Quality of life of older Chinese adults receiving primary care in Wuhan, China: a multi-center study
    
    
    
                    Bao-Liang Zhong,                     Yan-Min Xu,                     Wu-Xiang Xie,                     Xiu-Jun Liu            
            January 24, 2019
    
        Exploring wearable sensors as an alternative to marker-based motion capture in the pitching delivery
    
    
    
                    Kyle J. Boddy,                     Joseph A. Marsh,                     Alex Caravan,                     Kyle E. Lindley,                     John O. Scheffey,                     Michael E. O’Connell            
            January 16, 2019
    
    
    
                    Yaodong Gu,                     Changxiao Yu,                     Shirui Shao,                     Julien S. Baker            
            December 20, 2018
    
    
    
                    Raúl Valldecabres,                     Ana María de Benito,                     Greg Littler,                     Jim Richards            
            November 8, 2018
    
    
    
                    Jesualdo Cuevas-Aburto,                     David Ulloa-Díaz,                     Paola Barboza-González,                     Luis Javier Chirosa-Ríos,                     Amador García-Ramos            
            October 18, 2018
    
    
    
                    Dhanush Rachaveti,                     Niranjan Chakrabhavi,                     Vaisakh Shankar,                     Varadhan SKM            
            July 27, 2018
    
    
    
                    Michael D. Roberts,                     Matthew A. Romero,                     Christopher B. Mobley,                     Petey W. Mumford,                     Paul A. Roberson,                     Cody T. Haun,                     Christopher G. Vann,                     Shelby C. Osburn,                     Hudson H. Holmes,                     Rory A. Greer,                     Christopher M. Lockwood,                     Hailey A. Parry,                     Andreas N. Kavazis            
            July 18, 2018
    
    
    
                    Hui-Mei Chen,                     Shih-Ming Hsiao,                     Mei-Chuan Kuo,                     Yi-Ching Lo,                     Mei-Feng Huang,                     Yi-Chun Yeh,                     Cheng-Fang Yen,                     Cheng-Sheng Chen            
            June 12, 2018
    
    
    
                    Alex Caravan,                     John O. Scheffey,                     Sam J. Briend,                     Kyle J. Boddy            
            May 11, 2018
    
    
    
                    Wing-Kai Lam,                     Jacobus Liebenberg,                     Jeonghyun Woo,                     Sang-Kyoon Park,                     Suk-Hoon Yoon,                     Roy Tsz-Hei Cheung,                     Jiseon Ryu            
            April 30, 2018
    
    
    
                    José Pino-Ortega,                     Javier García-Rubio,                     Sergio J. Ibáñez            
            March 1, 2018
    
    
    
                    Athos Trecroci,                     Damiano Formenti,                     Nicola Ludwig,                     Marco Gargano,                     Andrea Bosio,                     Ermanno Rampinini,                     Giampietro Alberti            
            February 14, 2018
    
    
    
                    Giuseppe Marcolin,                     Nicola Camazzola,                     Fausto Antonio Panizzolo,                     Davide Grigoletto,                     Antonio Paoli            
            January 12, 2018
    
    
    
                    Zhen Li,                     Xiu-Xia Wang,                     Yan-Yi Liang,                     Shu-Yan Chen,                     Jing Sheng,                     Shao-Jun Ma            
            November 30, 2017
    
    
    
                    James Steele,                     Andreas Endres,                     James Fisher,                     Paulo Gentil,                     Jürgen Giessing            
            October 13, 2017
    
    
    
                    Blanca Romero-Moraleda,                     Roy La Touche,                     Sergio Lerma-Lara,                     Raúl Ferrer-Peña,                     Víctor Paredes,                     Ana Belén Peinado,                     Daniel Muñoz-García            
            October 5, 2017
    
    
    
                    Edward M. Giesbrecht,                     William C. Miller            
            September 5, 2017
    
    
    
                    Julien Tripette,                     Haruka Murakami,                     Katie Rose Ryan,                     Yuji Ohta,                     Motohiko Miyachi            
            February 9, 2017
    
    
    
                    Cesar Calvo Lobo,                     Carlos Romero Morales,                     David Rodríguez Sanz,                     Irene Sanz Corbalán,                     Eleuterio A. Sánchez Romero,                     Josué Fernández Carnero,                     Daniel López López            
            January 3, 2017
    
    
    
                    Brad Jon Schoenfeld,                     Alan A. Aragon,                     Colin Wilborn,                     Stacie L. Urbina,                     Sara E. Hayward,                     James Krieger            
            January 3, 2017
    
    
    
                    Carlos Romero Morales,                     César Calvo Lobo,                     David Rodríguez Sanz,                     Irene Sanz Corbalán,                     Beatriz Ruiz Ruiz,                     Daniel López López            
            December 22, 2016
    
    
    
                    Henrik Riel,                     Camilla Rams Rathleff,                     Pernille Møller Kalstrup,                     Niels Kragh Madsen,                     Elena Selmar Pedersen,                     Louise Bilenberg Pape-Haugaard,                     Morten Villumsen            
            December 15, 2016
    
    
    
                    Ming-Shao Tsai,                     Chia-Hsuan Lai,                     Chuan-Pin Lee,                     Yao-Hsu Yang,                     Pau-Chung Chen,                     Chung-Jan Kang,                     Geng-He Chang,                     Yao-Te Tsai,                     Chang-Hsien Lu,                     Chih-Yen Chien,                     Chi-Kuang Young,                     Ku-Hao Fang,                     Chin-Jui Liu,                     Re-Ming A. Yeh,                     Wen-Cheng Chen            
            August 23, 2016
    
    
    
                    Mohammad Reza Pourahmadi,                     Morteza Taghipour,                     Elham Jannati,                     Mohammad Ali Mohseni-Bandpei,                     Ismail Ebrahimi Takamjani,                     Fatemeh Rajabzadeh            
            August 11, 2016
    
    
    
                    Andrew D. Vigotsky,                     Gregory J. Lehman,                     Chris Beardsley,                     Bret Contreras,                     Bryan Chung,                     Erin H. Feser            
            July 21, 2016
    
    
    
                    Robert O. Deaner,                     Vittorio Addona,                     Rickey E. Carter,                     Michael J. Joyner,                     Sandra K. Hunter            
            June 21, 2016
    
    
    
                    Michael O. Harris-Love,                     Catheeja Ismail,                     Reza Monfaredi,                     Haniel J. Hernandez,                     Donte Pennington,                     Paula Woletz,                     Valerie McIntosh,                     Bernadette Adams,                     Marc R. Blackman            
            June 9, 2016
    
    
    
                    Jorunn Drageset,                     Geir Egil Eide,                     Solveig Hauge            
            March 15, 2016
    
    
    
                    Chia-Ter Chao,                     Jenq-Wen Huang,                     Chih-Kang Chiang            
            March 3, 2016
    
    
    
                    Xi-wen Bi,                     Liang Wang,                     Wen-wen Zhang,                     Shu-mei Yan,                     Peng Sun,                     Yi Xia,                     Zhi-ming Li,                     Wen-qi Jiang            
            February 22, 2016
    
    
    
                    Michael O. Harris-Love,                     Bryant A. Seamon,                     Carla Teixeira,                     Catheeja Ismail            
            Signed reviews submitted for articles published in PeerJ Note that some articles may not have the review itself made public unless authors have made them open as well.
June 27, 2018
    
    
    
                    Andrew D. Vigotsky,                     Brad J. Schoenfeld,                     Christian Than,                     J. Mark Brown            
            January 6, 2015
    
    
    
                    Andrew David Vigotsky,                     Erin Nicole Harper,                     David Russell Ryan,                     Bret Contreras