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performance
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| Txt Link | Title | Author(s) | Abstract | Publisher Link |
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Effect of an 8-week combined weights and plyometrics training program on golf drive performance. |
Fletcher IM, Hartwell M. |
The purpose of this study was to determine the effect of a combined weights and plyometrics program on golf drive performance. Eleven male golfers' full golf swing was analyzed for club head speed (CS) and driving distance (DD) before and after an 8-week training program. The control group (n = 5) continued their normal training, while the experimental group (n = 6) performed 2 sessions per week of weight training and plyometrics. Controls showed no significant (p > or = 0.05) changes, while experimental subjects showed a significant increase (p < or = 0.05) in CS and DD. The changes in golf drive performance were attributed to an increase in muscular force and an improvement in the sequential acceleration of body parts contributing to a greater final velocity being applied to the ball. It was concluded that specific combined weights and plyometrics training can help increase CS and DD in club golfers. |
14971982 |
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Effect of irrigation on the efficacy of insecticides for controlling two species of mole crickets (Orthoptera: Gryllotalpidae) on golf courses. |
Xia Y, Brandenburg RL. |
Effects of irrigation regimen, quantity, and timing on the efficacy of three insecticides for controlling nymphs of the southern mole cricket, Scapteriscus borellii Giglio-Tos, and the tawny mole cricket, Scapteriscus vicinus Scudder, were studied on golf courses in 1997, 1998, and 1999. Two irrigation regimen tests using two rates of bifenthrin and lambda-cyhalothrin produced inconclusive results. Mole cricket damage ratings after the applications of bifenthrin (60 g [AI]/ha) and lambda-cyhalothrin (76 g [AI]/ha) were not significantly different among the four irrigation regimens (non-irrigation, irrigation before treatment, irrigation after treatment, and irrigation before and after treatment). Mole cricket damage rating after the application of bifenthrin (120 g [AI]/ha) under irrigation before and after irrigation was significantly better than those under other irrigation regimens at 14 and 21 d after treatment (DAT). Different irrigation quantity and irrigation timing (after insecticide treatment) did not significantly affect the performance of imidacloprid (434 g [AI]/ha) in the 1998 tests. However, the results from the 1999 test indicated that mole cricket damage ratings fro |
10902341 |
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Effect of mandibular orthopedic repositioning appliance on kinematic pattern in golf swing. |
Egret C, Leroy D, Loret A, Chollet D, Weber J. |
Experience has shown that repositioning the mandible may have an influence on the athletic performance. Many athletes with or without occlusal problems are now using mandibular orthopedic repositioning appliance (MORA) supposedly to optimize their performance. In golf, the players do not have any direct opponent and they have different clubs to reach various distances. Therefore, an automatic swing permits the uncertainty of the movement to be restricted. The aim of this study was to analyze if the use of the MORA could have an effect on the stability of the kinematic pattern in golf swing, connected to the capacity of the golfers to reproduce their swing from kinematic perspective. The measures of kinematic data have been established with the optoelectronic system VICON (Oxford's Metrix, Oxford, UK) with five cameras operating at 50 frames per second. Measurements of the speed of the ball at impact were obtained with a radar (Bridgestone HD.01, Science eye, USA). Six professional (current handicap ranging from 0 to 4) right-handed golfers participated in the study. Six MORA were made and adjusted to fit each player. Each golfer performed five swings without mouthpiece and five wit |
11842364 |
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Effect of spinal manipulative therapy with stretching compared with stretching alone on full-swing performance of golf players: a randomized pilot trial. |
Costa SM, Chibana YE, Giavarotti L, Compagnoni DS, Shiono AH, Satie J, Bracher ES. |
There has been a steady growth of chiropractic treatment using spinal manipulative therapy (SMT) that aims to increase the performance of athletes in various sports. This study evaluates the effect of SMT by chiropractors on the performance of golf players. |
19948307 |
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Effects of adult age and level of skill on the ability to cope with high-stress conditions in a precision sport. |
Bäckman L, Molander B. |
Younger and older highly skilled and moderately skilled miniature golf players were studied in training and competition. All of the players showed an increase of heart rate and rated anxiety from training to competition. A performance decline in competition was observed for both older players and less accomplished players. Results from a cognitive task (incidental recall of shots) suggest that older players are less proficient in coping with the high-stress conditions in competition, due to an age-related decline in task-relevant cognitive abilities. |
3267415 |
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Effects of an 18-Week Strength Training Program on Low-Handicap Golfers' Performance. |
Alvarez M, Sedano S, Cuadrado G, Redondo JC. |
Álvarez, M, Sedano, S, Cuadrado, G, and Redondo, JC. Effects of an 18- week strength training program on low-handicap golfers' performance. J Strength Cond Res 25(X): 000-000, 2011-The purpose of this study was to determine the effects of an 18-week strength training program on variables related to low-handicap golfers' performance. Ten right-handed male golfers, reporting a handicap of 5 or less, were randomly divided into two groups: the control group (CG) (N = 5, age: 23.9 ± 6.7 years) and the treatment group (TG) (N = 5, age: 24.2 ± 5.4 years). CG players followed the standard physical conditioning program for golf, which was partially modified for the TG. The TG participated in an 18-week strength training program divided into three parts: maximal strength training including weightlifting exercises (2 days a week for 6 weeks), explosive strength training with combined weights and plyometric exercises (2 days a week for 6 weeks), and golf-specific strength training, including swings with a weighted club and accelerated swings with an acceleration tubing system (3 days a week for 6 weeks). Body mass, body fat, muscle mass, jumping ability, isometric grip strength, maximal streng |
21881530 |
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Effects of an 8-week multimodal exercise program on strength, flexibility, and golf performance in 55- to 79-year-old men. |
Thompson CJ, Osness WH. |
Substantial research has indicated the beneficial effect of physical activity on physical fitness and activities of daily living in older adults, but none have investigated the effects on performance of recreational activities. This investigation studied the effect of an exercise program on fitness and golf-clubhead speed in older men. Thirty-one golfers (mean age 65.1 +/- 6.2 years) were randomly assigned to a treatment (n = 19) or control (n = 12) group. The treatment group completed an 8-week strength and flexibility program. Assessments included 10-RM muscle strength; selected range-of-motion (ROM) measurements; and golf-clubhead speed (CHS). ANCOVA revealed significant differences between groups (p <.005) for all strength measurements and several ROM measurements. CHS was significantly different (p <.05) between groups after the intervention. Mean CHS improved from 85.0 to 87.1 miles/hr (136.8 to 140.2 km/hr). These results indicate that a strength and flexibility program can improve golf performance in older adults. |
15223883 |
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Effects of Belonolaimus longicaudatus Management and Nitrogen Fertility on Turf Quality of Golf Course Fairways. |
Luc JE, Crow WT, Stimac JL, Sartain JB, Giblin-Davis RM. |
Field experiments evaluated the effects of nematicide and fertility on performance of 'Tifway 419' bermudagrass parasitized by the sting nematode (Belonolaimus longicaudatus). Plot treatments were nontreated or nematicide (1,3-dichloropropene) treated combined with different nitrogen (N) fertilizer levels. Effects of treatments on numbers of B. longicaudatus and turf performance were compared. Nematicide consistently reduced numbers of B. longicaudatus, but fertilizer level had no effect on B. longicaudatus. Turf performance of nematicide-treated plots was improved compared with nontreated plots during both experiments. Increasing N fertilizer level improved turf performance in nematicide-treated plots in some cases, but had no effect on turf performance in nontreated plots in either experiment. Results suggest that increasing N fertilizer levels may not improve turf performance at sites infested with B. longicaudatus unless nematode management tactics are effective in reducing nematode densities. |
19259477 |
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Effects of competitive pressure on expert performance: underlying psychological, physiological, and kinematic mechanisms. |
Cooke A, Kavussanu M, McIntyre D, Boardley ID, Ring C. |
Although it is well established that performance is influenced by competitive pressure, our understanding of the mechanisms which underlie the pressure-performance relationship is limited. The current experiment examined mediators of the relationship between competitive pressure and motor skill performance of experts. Psychological, physiological, and kinematic responses to three levels of competitive pressure were measured in 50 expert golfers, during a golf putting task. Elevated competitive pressure increased putting accuracy, anxiety, effort, and heart rate, but decreased grip force. Quadratic effects of pressure were noted for self-reported conscious processing and impact velocity. Mediation analyses revealed that effort and heart rate partially mediated improved performance. The findings indicate that competitive pressure elicits effects on expert performance through both psychological and physiological pathways. |
21265862 |
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Effects of conditioning on physical fitness and club head speed in mature golfers. |
Hetu FE, Christie CA, Faigenbaum AD. |
The purpose of this study was to evaluate the effects of an 8-wk. conditioning program on selected measures of physical fitness and golf performance for 12 male and 5 female recreational golfers (M age = 52.4 yr., SD = 6.7 yr.). Measurements were made at baseline and following the intervention. The twice-per-week program consisted of strength training, flexibility, and plyometric exercises. Analysis of the pre- and posttest scores showed that conditioning was associated with significant increases in muscular strength, flexibility, and club head speed. Without a control group, the data suggest conditioning may be a worthwhile activity for mature golfers. |
9656273 |
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Effects of focus of attention depend on golfers' skill. |
Perkins-Ceccato N, Passmore SR, Lee TD. |
In this study, we examined the influence of internal and external attention instructions on the performance of a pitch shot by golfers who were either highly skilled (mean handicap = 4) or low skilled (mean handicap = 26). Ten golfers in each skill group used a 9-iron to pitch a ball as close as possible to an orange pylon, which was located at distances of 10, 15, 20 or 25 m from the golfer. Focus of attention was manipulated within participants (counterbalanced across golfers). Under internal focus of attention instructions, the participants were told to concentrate on the form of the golf swing and to adjust the force of their swing depending on the distance of the shot. For the external focus of attention conditions, the participants were told to concentrate on hitting the ball as close to the target pylon as possible. The most intriguing finding was an interaction of skill with focus of attention instructions for variability in performance. Similar to the findings of Wulf and colleagues, the highly skilled golfers performed better with external attention instructions than with internal focus instructions. In contrast, the low-skill golfers performed better with the internal th |
12875310 |
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Effects of hypnosis on flow states and golf performance. |
Pates J, Maynard I. |
This study examined the effects of an hypnotic intervention on flow states and golf-chipping performance of 3 participants. The study utilized an ideographic ABA single-subject design combined with a procedure to assess the participants' internal experience (Wollman, 1986). The intervention involved relaxation, imagery, hypnotic induction, hypnotic regression, and trigger control procedures over 5 wk. and 7 trials. Analysis indicated the 3 participants increased their mean golf-chipping performance from the trials in Baseline 1 to intervention, with 2 returning to Baseline 1 performance after the intervention phase at Baseline 2. The intensity of flow experienced by the participants during the performance trials was measured using Jackson and Marsh's 1996 Flow State Scale. Two participants experienced higher flow during the intervention phase and much lower flow during Baselines 1 and 2. Finally, participants indicated the intervention seemed useful in keeping them confident, relaxed, and in control. These results support the hypothesis that an hypnotic intervention can improve golf-chipping performance and increase feelings and cognitions associated with flow. |
11219648 |
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Effects of physical conditioning on intercollegiate golfer performance. |
Doan BK, Newton RU, Kwon YH, Kraemer WJ. |
This investigation was conducted to determine the effects of a physical conditioning program on clubhead speed, consistency, and putting distance control in 10 men and 6 women National Collegiate Athletic Association Division I golfers. Supervised strength, power, and flexibility training was performed 3 times per week for 11 weeks. Performance tests were conducted before and after the training period. Significant (p < 0.05) increases were noted for all strength, power, and flexibility tests from pre- to posttraining of between 7.3 and 19.9%. Clubhead speed increased significantly (1.6%), equating to approximately a 4.9-m increase in driving distance. Putting distance control significantly improved for the men-only group (29.6%), whereas there was no significant difference in putting distance control for the total and women-only groups. Eleven weeks of golf-specific physical conditioning increased clubhead speed without a negative effect on consistency or putting distance control in intercollegiate men and women golfers. |
16503694 |
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Effects of reducing frequency of intrinsic knowledge of results on the learning of a motor skill. |
Butki BD, Hoffman SJ. |
The guidance hypothesis suggests too much knowledge of results during skill acquisition can be detrimental to long-term performance. Possibly, the learner becomes dependent on augmented KR and is unable to use intrinsic feedback. This study examined this hypothesis with three groups performing a golf putting task. One group received continuous KR about ball path and final location; the other groups were deprived of specific KR on 50% or 100% of the acquisition trials. As expected, the continuous KR group performed better during acquisition, but the KR-deprived groups performed better on delayed retention trials, especially when KR was absent. |
14620246 |
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Electroencephalographic measures of attentional patterns prior to the golf putt. |
Crews DJ, Landers DM. |
The purpose of this investigation was to determine the attentional focus patterns associated with golf putting performance. Highly skilled golfers (N = 34) were assessed using electroencephalographic (EEG) measures of the motor and temporal cortices during the 3 s prior to the golf putt. Players completed 40, 12-ft putts and performance was measured in cm error from the hole. Three measures of EEG were analyzed: slow shift, 40 Hz, and relative power spectrum; representing readiness to respond, focused arousal, and general cortical activity, respectively. All three EEG measures suggested a decrease in left hemisphere, motor cortex activity as the player prepared to putt. Relative power measures also showed significant increases in right hemisphere activity in both the motor and temporal cortices. During the last second preceding the putt, increased right hemisphere alpha activity correlated with and predicted less error. Hemispheric differentiation was also reduced as subjects prepared to putt and few, but important, differences existed between the motor and temporal cortices. An important distinction occurred in the alpha band. In the motor cortex left hemisphere alpha increased si |
8423744 |
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Electromyographic analysis of the shoulder during the golf swing. |
Pink M, Jobe FW, Perry J. |
Golf is a popular sport throughout the world, yet there is little in the literature that discusses the mechanics of the swing. The purpose of this study is to analyze the EMG activity in eight shoulder muscles of both the right and left arms during the golf swing. The results reveal that the infraspinatus and supraspinatus act predominantly at the extremes of shoulder range of motion, the subscapularis and pectoralis major during acceleration, the latissimus dorsi during forward swing, and the anterior deltoid during forward swing and follow-through. The middle and posterior deltoids appear to be relatively noncontributory, without any specific timing patterns. This data is an expansion of an earlier pilot study and allows us to more accurately develop an exercise program for optimal performance as well as for prevention and rehabilitation. |
2343980 |
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Emotions and golf performance: An IZOF-based applied sport psychology case study. |
Cohen AB, Tenenbaum G, English RW. |
A multiple case study investigation is reported in which emotions and performance were assessed within the probabilistic individual zone of optimal functioning (IZOF) model (Kamata, Tenenbaum,& Hanin, 2002) to develop idiosyncratic emotion-performance profiles. These profiles were incorporated into a psychological skills training (PST) intervention, with a focus on three emotional dimensions, that is, arousal, pleasantness, and functionality, and several psychological strategies employed during practice and competition. Two female varsity golfers at a major Division I university in the Southeast participated in the case study during the Spring 2002 season. The PST intervention resulted in enhanced emotional self-regulation skills and improved golf performance. Directions for future research into the IZOF model and implications for practical application of the model are discussed. |
16574814 |
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Entomopathogenic Nematodes Are Not an Alternative to Fenamiphos for Management of Plant-Parasitic Nematodes on Golf Courses in Florida. |
Crow W, Porazinska D, Giblin-Davis R, Grewal P. |
With the cancellation of fenamiphos in the near future, alternative nematode management tactics for plant-parasitic nematodes (PPN) on golf courses need to be identified. The use of entomopathogenic nematodes (EPN) has been suggested as one possible alternative. This paper presents the results of 10 experiments evaluating the efficacy of EPN at managing PPN on turfgrasses and improving turf performance. These experiments were conducted at various locations throughout Florida over the course of a decade. In different experiments, different EPN species were tested against different species of PPN. Separate experiments evaluated multiple rates and applications of EPN, compared different EPN species, and compared single EPN species against multiple species of PPN. In a few trials, EPN were associated with reductions in certain plant-parasite species, but in other trials were associated with increases. In most trials, EPN had no effect on plant parasites. Because EPN were so inconsistent in their results, we conclude that EPN are not acceptable alternatives to fenamiphos by most turf managers in Florida at this time. |
19259430 |
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Evaluating the factor structure of the Psychological Performance Inventory. |
Golby J, Sheard M, van Wersch A. |
This study assesses the construct validity of a measure of mental toughness, Loehr's Psychological Performance Inventory. Performers (N = 408, 303 men, 105 women, M age = 24.0 yr., SD = 6.7) drawn from eight sports (artistic rollerskating, basketball, canoeing, golf, rugby league, rugby union, soccer, swimming), and competing at either international, national, county and provincial, or club and regional standards. They completed the 42-item Psychological Performance Inventory during training camps. Principal components analysis provided minimal support for the factor structure. Instead, the exploratory analysis yielded a 4-factor 14-item model (PPI-A). A single factor underlying mental toughness (G(MT)) was identified with higher-order exploratory factor analysis using the Schmid-Leiman procedure. Psychometric analysis of the model, using confirmatory analysis techniques, fitted the data well. Collectively satisfying absolute and incremental fit index benchmarks, the inventory possesses satisfactory psychometric properties, with adequate reliability and convergent and discriminant validity. The results lend preliminary support to the factorial validity and reliability of the model; |
17918579 |
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Experienced golfers' perspectives on choking under pressure. |
Gucciardi DF, Longbottom JL, Jackson B, Dimmock JA. |
Although researchers have experimentally examined the mechanisms underlying pressure-induced forms of suboptimal performance, or "choking under pressure," there is a lack of research exploring the personal experience of this phenomenon. In an attempt to fill this void in the literature, this study explored experienced golfers' perceptions of the choking experience within a personal construct psychology (Kelly, 1955/1991) framework. Both male and female golfers participated in either a focus group (n = 12; all males) or one-on-one interview (n = 10; female = 7, male = 3) using experience cycle methodology (Oades & Viney, 2000) to describe their perceptions of the choking experience. Discussions were transcribed verbatim and subsequently analyzed using grounded theory analytical techniques (Strauss & Corbin, 1998). Analyses revealed five central categories representing the personal experience of choking under pressure: antecedents, personal investment, choking event, consequences, and learning experiences. The findings reported here suggest that the choking phenomenon, which can involve acute or chronic bouts of suboptimal performance (relative to the performance expectations of the |
20167952 |
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