Paul Swinton - Academia.edu (original) (raw)
Papers by Paul Swinton
Journal of Strength and Conditioning Research, 2013
It was the aim of the present study to expand on previous correlational analyses which have attem... more It was the aim of the present study to expand on previous correlational analyses which have attempted to identify factors that influence performance of jumping, sprinting and changing direction. This was achieved by employing a regression approach to obtain predictor models which combined multiple anthropometric and biomechanical variables. Thirty rugby union players participated in the study (age: 24.2 ± 3.9yr; stature: 181.2 ± 6.6cm; mass: 94.2 ± 11.1kg). The athletes ability to sprint, jump and change direction were assessed using a 30 m sprint-, vertical jump-, and 505 agilitytest, respectively. Predictor variables were collected during maximum strength tests (1RM deadlift and squat) and performance of fast velocity resistance exercises (deadlift and jump squat) using sub-maximum loads (10 to 70% 1RM). Force, velocity, power and rate of force development values were measured during fast velocity exercises with the greatest value produced across the loads selected for further analysis. Anthropometric data, including lengths, widths and girths were collected using a 3D body scanner. Potential predictor variables were first identified using correlational analyses. Suitable variables were then regressed using a best subsets approach. Three factor models provided the most appropriate balance between explained variance and model complexity. Adjusted R2 values of 0.86, 0.82 and 0.67 were obtained for sprint, jump and change of direction performance, respectively. Anthropometric measurements did not feature in any of the models due to their strong association with body mass. For each performance measure assessed, variance was best explained using maximum strength measures. Improvements in the models were then obtained by including velocity and power values for jumping and springing, and by including rate of force development values for change of direction performance.
Journal of Strength and Conditioning Research, 2009
The primary objective of this study was to investigate current powerlifting training methods in l... more The primary objective of this study was to investigate current powerlifting training methods in light of anecdotal evidence purporting increased similarity with the explosive training practices of weightlifters. The study also assessed the prevalence of contemporary training practices frequently recommended for powerlifters in the popular literature. A 20-item survey was distributed to 32 elite British powerlifters at an International competition. The subject group included multiple national, international, and commonwealth champions and record holders. Based on 2007 competition results, the average Wilks score of the group was 450.26 +/- 34.7. The response rate for the surveys was 88% (28 of 32). The survey was sectioned into 6 areas of inquiry: a) repetition speed, b) explosive training load, c) resistance materials used, d) adjunct power training methods, e) exercise selection, and f) training organization. The results demonstrate that the majority of powerlifters train with the intention to explosively lift maximal and submaximal loads (79 and 82%, respectively). Results revealed that 39% of the lifters regularly used elastic bands and that 57% incorporated chains in their training. Evidence for convergence of training practices between powerlifters and weightlifters was found when 69% of the subjects reported using the Olympic lifts or their derivatives as part of their powerlifting training. Collectively, the results demonstrate that previous notions of how powerlifters train are outdated. Contemporary powerlifters incorporate a variety of training practices that are focused on developing both explosive and maximal strength.
Journal of Strength and Conditioning Research, 2011
Purpose: The purpose of the investigation was to compare the kinematics and kinetics associated w... more Purpose: The purpose of the investigation was to compare the kinematics and kinetics associated with performance of the deadlift exercise with two different types of barbells across a range of submaximal loads. Methods: Nineteen male powerlifters performed the deadlift with a conventional straight barbell and a hexagonal barbell that allowed the lifter to stand within its frame. Subjects performed the deadlift at maximum speed with loads of 10, 20, 30, 40, 50, 60, 70 and 80% of their predetermined one-repetition maximum (1RM).
Journal of Strength and Conditioning Research, 2013
It was the aim of the present study to expand on previous correlational analyses which have attem... more It was the aim of the present study to expand on previous correlational analyses which have attempted to identify factors that influence performance of jumping, sprinting and changing direction. This was achieved by employing a regression approach to obtain predictor models which combined multiple anthropometric and biomechanical variables. Thirty rugby union players participated in the study (age: 24.2 ± 3.9yr; stature: 181.2 ± 6.6cm; mass: 94.2 ± 11.1kg). The athletes ability to sprint, jump and change direction were assessed using a 30 m sprint-, vertical jump-, and 505 agilitytest, respectively. Predictor variables were collected during maximum strength tests (1RM deadlift and squat) and performance of fast velocity resistance exercises (deadlift and jump squat) using sub-maximum loads (10 to 70% 1RM). Force, velocity, power and rate of force development values were measured during fast velocity exercises with the greatest value produced across the loads selected for further analysis. Anthropometric data, including lengths, widths and girths were collected using a 3D body scanner. Potential predictor variables were first identified using correlational analyses. Suitable variables were then regressed using a best subsets approach. Three factor models provided the most appropriate balance between explained variance and model complexity. Adjusted R2 values of 0.86, 0.82 and 0.67 were obtained for sprint, jump and change of direction performance, respectively. Anthropometric measurements did not feature in any of the models due to their strong association with body mass. For each performance measure assessed, variance was best explained using maximum strength measures. Improvements in the models were then obtained by including velocity and power values for jumping and springing, and by including rate of force development values for change of direction performance.
Journal of Strength and Conditioning Research, 2009
The primary objective of this study was to investigate current powerlifting training methods in l... more The primary objective of this study was to investigate current powerlifting training methods in light of anecdotal evidence purporting increased similarity with the explosive training practices of weightlifters. The study also assessed the prevalence of contemporary training practices frequently recommended for powerlifters in the popular literature. A 20-item survey was distributed to 32 elite British powerlifters at an International competition. The subject group included multiple national, international, and commonwealth champions and record holders. Based on 2007 competition results, the average Wilks score of the group was 450.26 +/- 34.7. The response rate for the surveys was 88% (28 of 32). The survey was sectioned into 6 areas of inquiry: a) repetition speed, b) explosive training load, c) resistance materials used, d) adjunct power training methods, e) exercise selection, and f) training organization. The results demonstrate that the majority of powerlifters train with the intention to explosively lift maximal and submaximal loads (79 and 82%, respectively). Results revealed that 39% of the lifters regularly used elastic bands and that 57% incorporated chains in their training. Evidence for convergence of training practices between powerlifters and weightlifters was found when 69% of the subjects reported using the Olympic lifts or their derivatives as part of their powerlifting training. Collectively, the results demonstrate that previous notions of how powerlifters train are outdated. Contemporary powerlifters incorporate a variety of training practices that are focused on developing both explosive and maximal strength.
Journal of Strength and Conditioning Research, 2011
Purpose: The purpose of the investigation was to compare the kinematics and kinetics associated w... more Purpose: The purpose of the investigation was to compare the kinematics and kinetics associated with performance of the deadlift exercise with two different types of barbells across a range of submaximal loads. Methods: Nineteen male powerlifters performed the deadlift with a conventional straight barbell and a hexagonal barbell that allowed the lifter to stand within its frame. Subjects performed the deadlift at maximum speed with loads of 10, 20, 30, 40, 50, 60, 70 and 80% of their predetermined one-repetition maximum (1RM).