Validity of a Squash-Specific Test of Change-of-Direction Speed

Wilkinson, Michael; Leedale-Brown, Damon; Winter, Edward

doi:10.1123/ijspp.4.2.176

Cited by 35 publications

(33 citation statements)

References 10 publications

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“…The IAT was administered using a version standardized from previous literature [1,[18][19][23][24]. The length of the IAT was originally set at 30 ft, which was increased slightly to 10 m for ease of test administration.…”

Section: Illinois Agility Testmentioning

confidence: 99%

“…Excellent within-day reliability (r = 0.98, p < 0.001) was established with a variation of the IAT in semiprofessional rugby players, using a shorter course, unknown performance surface, and without the prone to standing start [20]. Numerous authors have described the IAT as a measure of multidirectional agility for a variety of sports without establishing the prerequisite performance metrics [2,12,[20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of three agility tests with male servicemembers: Edgren Side Step Test, T-Test, and Illinois Agility Test

et al. 2013

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Abstract-Performance-based outcomes such as the T-Test, Edgren SideStep Test (ESST), and Illinois Agility Test (IAT) have been used to assess agility in athletes and nonathletes; however, the reliability and validity of these tests have not been established. The purpose of this study was to establish the reliability and convergent construct validity of the ESST, TTest, and IAT in young, nondisabled, physically active male servicemembers (SMs). Ninety-seven male Active Duty U.S. Army SMs completed the study. Statistically significant differences were not found between the ESST (p = 0.10), T-Test (p = 0.09), and IAT (p = 0.23) when administered twice within a 24 to 48 h period. These tests were found to have excellent interrater reliability and moderate to good test-retest reliability. A good positive relationship exists between the IAT and T-Test (r = 0.76, p < 0.001) and a moderate negative relationship exists between the ESST and both the T-Test (r = 0.69, p < 0.001) and IAT (r = 0.65, p < 0.001). The results suggest that these tests are valid measures of agility that uniquely assess movement in different planes, thus providing a comprehensive assessment of high-level mobility.

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Section: Illinois Agility Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of three agility tests with male servicemembers: Edgren Side Step Test, T-Test, and Illinois Agility Test

et al. 2013

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show abstract

“…The T-Test assesses bidirectional (sagittal and frontal) agility and body control, evaluating the ability to change directions rapidly while maintaining balance, speed, and power in the forward, lateral, and backward directions [6,[9][10]. The IAT was included as a measure of multidirectional (frontal, sagittal, and transverse) agility, emphasizing the ability to accelerate and decelerate when performing a variety of maneuvers [11][12][13][14][29][30][31].…”

Section: Champ Development and Item Selectionmentioning

confidence: 99%

Development and reliability testing of the Comprehensive High-Level Activity Mobility Predictor (CHAMP) in male servicemembers with traumatic lower-limb loss

et al. 2013

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Abstract-The opportunity for wounded servicemembers (SMs) to return to high-level activity and return to duty has improved with advances in surgery, rehabilitation, and prosthetic technology. As a result, there is now a need for a high-level mobility outcome measure to assess progress toward high-level mobility during and after rehabilitation. The purpose of this study was to develop and determine the reliability of a new outcome measure called the Comprehensive High-Level Activity Mobility Predictor (CHAMP). The CHAMP consists of the Single Limb Stance, Edgren Side Step Test, T-Test, and Illinois Agility Test. CHAMP reliability was determined for SMs with lower-limb loss (LLL) (interrater: n = 118; test-retest: n = 111) and without LLL (n = 97). A linear system was developed to combine the CHAMP items and produce a composite score that ranges from 0 to 40, with higher scores indicating better performance. Interrater and test-retest intraclass correlation coefficient values for the CHAMP were 1.0 and 0.97, respectively. A CHAMP score equal to or greater than 33 points is within the range for SMs without LLL. The CHAMP was found to be a safe and reliable measure of high-level mobility in SMs with traumatic LLL.Key words: agility, high-level activity, lower-limb loss, military personnel, mobility, OIF/OEF, outcome measures, reliability, traumatic amputation, Veterans.

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“…Another issue is the practicality of research in a small environment and a general lack of research interest in the sport. However, scientific research on squash is progressing with several relevant studies being undertaken in more recent times (Bottoms et al, 2006;Chin et al, 1995;Girard et al, 2007;Girard et al, 2005;Kingsley et al, 2006;Montpetit, 1990;Romer et al, 2001;Sharp et al, 1998;Todd et al, 1998;Wilkinson et al, 2009;Wilkinson et al, 2009a;Wilkinson et al, 2009b).…”

Section: Design Of Match Simulationmentioning

confidence: 97%

The Effects of Carbohydrate Loading 48 Hours Before a Simulated Squash Match

Raman

Macdermid

Mündel³

et al. 2014

International Journal of Sport Nutrition and Exercise Metabolism

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The aim of this study was to ascertain whether a high carbohydrate diet in the days before movement patterns simulating a squash match would increase carbohydrate oxidation during the match, and alter physical performance. Nine New Zealand level squash players were recruited to complete a simulated squash match on two occasions: 1) following a 48-hr high carbohydrate (11.1g·kg-1); and 2) following a calorie-matched low carbohydrate (2.1 g·kg-1) diet. The interventions were assigned in a randomized, single-blind, cross-over design. The match simulation was designed to mimic a five-game match lasting approximately 1 hr. Performance was measured as time to complete each game. Expired respiratory gases and heart rate were continuously collected throughout the trial using a portable gas analysis system. Capillary blood glucose and lactate samples were obtained during a 90 s rest period between each game. Rating of perceived exertion was also recorded after each set. Respiratory exchange ratio was significantly higher during exercise following the high CHO diet (0.80 vs. 0.76) p < .001) and this was associated with significantly faster time to complete the games (2340 ± 189 s vs. 2416 ± 128 s, p = .036). Blood glucose and lactate concentrations were also significantly higher in the high carbohydrate condition (p = .038 and p = .021 respectively). These results suggest that ingestion of a diet high in carbohydrate (>10 g/kg body weight) preceding simulated competitive squash produces increased rates of carbohydrate oxidation and maintains higher blood glucose concentrations. These metabolic effects were associated with improved physical performance.

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Validity of a Squash-Specific Test of Change-of-Direction Speed

Cited by 35 publications

References 10 publications

Comparison of three agility tests with male servicemembers: Edgren Side Step Test, T-Test, and Illinois Agility Test

Comparison of three agility tests with male servicemembers: Edgren Side Step Test, T-Test, and Illinois Agility Test

Development and reliability testing of the Comprehensive High-Level Activity Mobility Predictor (CHAMP) in male servicemembers with traumatic lower-limb loss

The Effects of Carbohydrate Loading 48 Hours Before a Simulated Squash Match

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