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Full-Text Articles in Medicine and Health Sciences
Effects Of An 8-Week Resistance Training Intervention On Plantar Flexor Muscle Quality And Functional Capacity In Older Women: A Randomised Controlled Trial, Pedro Lopez, Brendan James Crosby, Bruna Patrícia Robetti, Douglas Jean Preussler Turella, Thaís Andréia Schepa Weber, Morgana Lima De Oliveira, Anderson Rech
Effects Of An 8-Week Resistance Training Intervention On Plantar Flexor Muscle Quality And Functional Capacity In Older Women: A Randomised Controlled Trial, Pedro Lopez, Brendan James Crosby, Bruna Patrícia Robetti, Douglas Jean Preussler Turella, Thaís Andréia Schepa Weber, Morgana Lima De Oliveira, Anderson Rech
Research outputs 2014 to 2021
© 2020 The present study examined 8 weeks of resistance training and its effects on muscle quality measures, plantar flexor muscle strength, muscle thickness and functional capacity in older women. Moreover, we tested if changes in muscle quality were associated with functional capacity. Twenty-four older women (66.3 ± 5.8 years; 69.0 ± 3.0 kg; 25.3 ± 1.4 kg·m−2) were recruited to the study. After completion of the baseline assessment, participants were randomly assigned to either the resistance training (RET, n = 12) or an active control group (CTR, n = 12). Muscle quality was evaluated through muscle echo intensity (MQEI) …
Lift, Stop, Rest, Repeat: The Potential Of ‘Cluster Sets’ As Interval Resistance Exercise For Copd, Christopher Latella
Lift, Stop, Rest, Repeat: The Potential Of ‘Cluster Sets’ As Interval Resistance Exercise For Copd, Christopher Latella
Research outputs 2014 to 2021
Exercise training is often a focus of clinical rehabilitation programmes aimed at improving patient health and function and decreasing mortality rate. Demonstrated benefits extend across a plethora of chronic conditions including chronic obstructive pulmonary disorder (COPD). Briefly, COPD is a progressive chronic inflammatory lung disease typically resulting from long‐term exposure to irritants (e.g. smoking) causing respiratory issues. Disease progression is often accompanied by peripheral muscle discomfort, weakness and dysfunction. Intolerable dyspnoea sensations are also common during exercise. Subsequently, exercise tolerance and health‐related quality of life are severely reduced in COPD patients leading to morbidity and ultimately mortality. As such, exercise …
Global Challenges Of Being A Strength Athlete During A Pandemic: Impacts And Sports-Specific Training Considerations And Recommendations, Christopher Latella, G. Gregory Haff
Global Challenges Of Being A Strength Athlete During A Pandemic: Impacts And Sports-Specific Training Considerations And Recommendations, Christopher Latella, G. Gregory Haff
Research outputs 2014 to 2021
The ongoing global pandemic brought about by Coronavirus II (SARS-Cov-2 or COVID-19) has caused an ongoing cessation of sporting competitions and training facility closures. This is a fundamental challenge for amateur and elite sporting professionals. Although recommendations have been provided for team-sport athletes to maintain general and sport-specific conditioning, these methods are often not optimal for strength athletes (i.e., powerlifting (PL) and weightlifting (WL)) due to the unique and narrow set of performance requirements posed by these sports. The purpose of this review is to provide evidence-based information and recommendations and highlight potential strategies and approaches that may be used …
Autoregulation In Resistance Training: Addressing The Inconsistencies, Leon Greig, Ben Hayden Stephens Hemingway, Rodrigo R. Aspe, Kay Cooper, Paul Comfort, Paul A. Swinton
Autoregulation In Resistance Training: Addressing The Inconsistencies, Leon Greig, Ben Hayden Stephens Hemingway, Rodrigo R. Aspe, Kay Cooper, Paul Comfort, Paul A. Swinton
Research outputs 2014 to 2021
© 2020, The Author(s). Autoregulation is a process that is used to manipulate training based primarily on the measurement of an individual’s performance or their perceived capability to perform. Despite being established as a training framework since the 1940s, there has been limited systematic research investigating its broad utility. Instead, researchers have focused on disparate practices that can be considered specific examples of the broader autoregulation training framework. A primary limitation of previous research includes inconsistent use of key terminology (e.g., adaptation, readiness, fatigue, and response) and associated ambiguity of how to implement different autoregulation strategies. Crucially, this ambiguity in …
Isokinetic Eccentric Exercise Substantially Improves Mobility, Muscle Strength And Size, But Not Postural Sway Metrics In Older Adults, With Limited Regression Observed Following A Detraining Period, Anthony David Kay, Anthony John Blazevich, Millie Fraser, Lucy Ashmore, Mathew William Hill
Isokinetic Eccentric Exercise Substantially Improves Mobility, Muscle Strength And Size, But Not Postural Sway Metrics In Older Adults, With Limited Regression Observed Following A Detraining Period, Anthony David Kay, Anthony John Blazevich, Millie Fraser, Lucy Ashmore, Mathew William Hill
Research outputs 2014 to 2021
© 2020, The Author(s). Introduction: Eccentric exercise can reverse age-related decreases in muscle strength and mass; however, no data exist describing its effects on postural sway. As the ankle may be more important for postural sway than hip and knee joints, and with older adults prone to periods of inactivity, the effects of two 6-week seated isokinetic eccentric exercise programmes, and an 8-week detraining period, were examined in 27 older adults (67.1 ± 6.0 years). Methods: Neuromuscular parameters were measured before and after training and detraining periods with subjects assigned to ECC (twice-weekly eccentric-only hip and knee extensor contractions) or …
Ador2a C Allele Carriers Exhibit Ergogenic Responses To Caffeine Supplementation, Jozo Grgic, Craig Pickering, David J. Bishop, Juan Del Coso, Brad Schoenfeld, Grant M. Tinsley, Zeljko Pedisic
Ador2a C Allele Carriers Exhibit Ergogenic Responses To Caffeine Supplementation, Jozo Grgic, Craig Pickering, David J. Bishop, Juan Del Coso, Brad Schoenfeld, Grant M. Tinsley, Zeljko Pedisic
Research outputs 2014 to 2021
Caffeine’s ergogenic effects on exercise performance are generally explained by its ability to bind to adenosine receptors. ADORA2A is the gene that encodes A2A subtypes of adenosine receptors. It has been suggested that ADORA2A gene polymorphisms may be responsible for the inter-individual variations in the effects of caffeine on exercise performance. In the only study that explored the influence of variation in ADORA2A—in this case, a common polymorphism (rs5751876)—on the ergogenic effects of caffeine on exercise performance, C allele carriers were identified as “non-responders” to caffeine. To explore if C allele carriers are true “non-responders” to the ergogenic effects of …
Long-Term Strength Adaptation: A 15-Year Analysis Of Powerlifting Athletes, Christopher Latella, Wei-Peng Teo, Jemima Spathis, Daniel Van Den Hoek
Long-Term Strength Adaptation: A 15-Year Analysis Of Powerlifting Athletes, Christopher Latella, Wei-Peng Teo, Jemima Spathis, Daniel Van Den Hoek
Research outputs 2014 to 2021
Strength is a fundamental component of athletic performance and development. This investigation examined the long-term strength development of powerlifting (PL) athletes. The rate of strength gain/day was assessed in 1897 PL athletes (F = 626, M = 1,271) over a 15-year period (2003–2018). Independent T-tests explored sex differences in baseline absolute (kg) and relative strength (kg·body mass−1 [bm]) recorded from the first competition, and strength gain/day (kg·d−1). Analyses based on initial strength quartiles were conducted using one-way analysis of variances with significance set at p < 0.05. Bivariate correlational analysis tested for relationships between strength gain/day and baseline strength, the number of competitions, and mean days between competitions. Males had greater absolute (M: 513.3 ± 99.8 kg, F: 289.4 ± 55.7 kg, p < 0.001) and relative (M: 5.89 ± 1.04 kg·bm−1, F: 4.27 ± 0.85 kg·bm−1, p < 0.001) strength at baseline. Overall, strength gain/day (F: 0.12 ± 0.69 kg·d−1 …
Using Velocity To Predict The Maximum Dynamic Strength In The Power Clean, G. Gregory Haff, Amador Garcia-Ramos, Lachlan P. James
Using Velocity To Predict The Maximum Dynamic Strength In The Power Clean, G. Gregory Haff, Amador Garcia-Ramos, Lachlan P. James
Research outputs 2014 to 2021
The primary aim of the present study was to examine the commonly performed training exercise for athlete preparation. Twenty-two recreationally trained males (age: 26.3 ± 4.1 y, height: 1.80 ± 0.07 m; body mass (BM): 87.01 ± 13.75 kg, 1-repetitoon maximum(1-RM)/BM: 0.90 ± 0.19 kg) participated in the present study. All subjects had their 1-RM power clean tested with standard procedures. On a separate testing day, subjects performed three repetitions at 30% and 45%, and two repetitions at 70% and 80% of their 1-RM power clean. During all trials during both sessions, peak velocity (PV) and mean velocity (MV) were …
Increased Fascicle Length But Not Patellar Tendon Stiffness After Accentuated Eccentric-Load Strength Training In Already-Trained Men, Simon Walker, Joanne Trezise, Guy Gregory Haff, Robert U. Newton, Keijo Häkkinen, Anthony J. Blazevich
Increased Fascicle Length But Not Patellar Tendon Stiffness After Accentuated Eccentric-Load Strength Training In Already-Trained Men, Simon Walker, Joanne Trezise, Guy Gregory Haff, Robert U. Newton, Keijo Häkkinen, Anthony J. Blazevich
Research outputs 2014 to 2021
© 2020, The Author(s). Purpose: This study examined whether additional external load during the eccentric phase of lower limb strength training exercises led to greater adaptations in knee extensor strength, muscle architecture, and patellar tendon properties than traditional concentric–eccentric training in already-trained men. Methods: Twenty-eight men accustomed to strength training were randomized to undertake 10 weeks of supervised traditional (TRAD) or accentuated eccentric loading (AEL) or continue their habitual unsupervised (CON) strength training. TRAD and AEL trained 2∙week−1 with a six-repetition maximum (RM) session and a ten-RM session. TRAD used the same external load in both concentric and eccentric phases, …
Remodeling The Skeletal Muscle Extracellular Matrix In Older Age—Effects Of Acute Exercise Stimuli On Gene Expression, Matthias Gumpenberger, Barbara Wessner, Alexandra Graf, Marco V. Narici, Christian Fink, Sepp Braun, Christian Hoser, Anthony J. Blazevich, Robert Csapo
Remodeling The Skeletal Muscle Extracellular Matrix In Older Age—Effects Of Acute Exercise Stimuli On Gene Expression, Matthias Gumpenberger, Barbara Wessner, Alexandra Graf, Marco V. Narici, Christian Fink, Sepp Braun, Christian Hoser, Anthony J. Blazevich, Robert Csapo
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. With advancing age, the skeletal muscle extracellular matrix (ECM) undergoes fibrotic changes that may lead to increased muscle stiffness, injury susceptibility and strength loss. This study tested the potential of different exercises to counter these changes by stimulating the activity of genes associated with ECM remodeling. Twenty-six healthy men (66.9 ± 3.9 years) were stratified to two of four groups, performing unilateral (i) conventional resistance exercise, (ii) conventional resistance exercise followed by self-myofascial release (CEBR), (iii) eccentric-only exercise (ECC) or (iv) plyometric jumps (PLY). The non-trained leg served as control. Six …