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Full-Text Articles in Medicine and Health Sciences
The Effects Of The Deflection Point And Shaft Mass On Swing And Launch Parameters In The Golf Swing, Christopher Joyce, Angus Burnett, Stephen Herbert
The Effects Of The Deflection Point And Shaft Mass On Swing And Launch Parameters In The Golf Swing, Christopher Joyce, Angus Burnett, Stephen Herbert
Research outputs 2012
This study determined whether a higher dynamic deflection point (DDP) was evident when using a driver fitted with a stiff shaft of greater mass and whether between-shaft differences were evident in swing and launch parameters. Twelve elite male golfers had three shots analysed for each of two drivers fitted with “stiff” shafts of different mass (56 g and 78 g). Six swing and launch parameters were measured by a real-time launch monitor and the (DDP) was measured using a motion analysis system. Between-shaft differences were evident for the DDP at maximum, but not at ball impact. Between-shaft differences in swing …
Effects Of Lowering Body Temperature Via Hyperhydration, With And Without Glycerol Ingestion And Practical Precooling On Cycling Time Trial Performance In Hot And Humid Conditions, Megan Ross, Nikki Jeacocke, Paul Laursen, David Martin, Christopher Abbiss, Louise Burke
Effects Of Lowering Body Temperature Via Hyperhydration, With And Without Glycerol Ingestion And Practical Precooling On Cycling Time Trial Performance In Hot And Humid Conditions, Megan Ross, Nikki Jeacocke, Paul Laursen, David Martin, Christopher Abbiss, Louise Burke
Research outputs 2012
Background: Hypohydration and hyperthermia are factors that may contribute to fatigue and impairment of endurance performance. The purpose of this study was to investigate the effectiveness of combining glycerol hyperhydration and an established precooling technique on cycling time trial performance in hot environmental conditions.Methods: Twelve well-trained male cyclists performed three 46.4-km laboratory-based cycling trials that included two climbs, under hot and humid environmental conditions (33.3 ± 1.1°C; 50 ± 6% r.h.). Subjects were required to hyperhydrate with 25 g.kg-1 body mass (BM) of a 4°C beverage containing 6% carbohydrate (CON) 2.5 h prior to the time trial. On two occasions, …
Acute Effects Of Three Different Stretching Protocols On The Wingate Test Performance, B L Franco, G R Signorelli, Gabriel Trajano, P B Costa, C G De Oliveira
Acute Effects Of Three Different Stretching Protocols On The Wingate Test Performance, B L Franco, G R Signorelli, Gabriel Trajano, P B Costa, C G De Oliveira
Research outputs 2012
The purpose of this study was to examine the acute effects of different stretching exercises on the performance of the traditional Wingate test (WT). Fifteen male participants performed five WT; one for familiarization (FT), and the remaining four after no stretching (NS), static stretching (SS), dynamic stretching (DS), and proprioceptive neuromuscular facilitation (PNF). Stretches were targeted for the hamstrings, quadriceps, and calf muscles. Peak power (PP), mean power (MP), and the time to reach PP (TP) were calculated. The MP was significantly lower when comparing the DS (7.7 ± 0.9 W/kg) to the PNF (7.3 ± 0.9 W/kg) condition (p < 0.05). For PP, significant differences were observed between more comparisons, with PNF stretching providing the lowest result. A consistent increase of TP was observed after all stretching exercises when compared to NS. The results suggest the type of stretching, or no stretching, should be considered by those who seek higher performance and practice sports that use maximal anaerobic power.
Swing And Launch Parameters In Approach-Iron Shots Hit With Varying Height And Trajectory In Golf, Samuel J. Robertson, Angus Burnett
Swing And Launch Parameters In Approach-Iron Shots Hit With Varying Height And Trajectory In Golf, Samuel J. Robertson, Angus Burnett
Research outputs 2012
The first aim of this study was to determine whether relationships existed between variability of swing and launch parameters and variability in shot outcome for straight golf shots. The second aim was to determine whether differences existed for swing and launch parameters in shots intentionally played with varying height and trajectory. Elite (n=20) and high-level amateur (n=22) golfers hit; 1) five straight shots of normal height and 2) nine shots of differing height (low, normal, high) and trajectory (straight, draw, fade). Variability of club attack angle, face angle and ball spin axis was significantly associated (p