High-intensity intermittent running and field hockey skill performance in the heat

Sunderland, Caroline; Nevill, Mary E.

doi:10.1080/02640410410001730197

Cited by 51 publications

(40 citation statements)

References 29 publications

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“…In contrast to the present study, other studies using the LIST have shown a deterioration in sprint performance as the number of sprints performed increased in trained (Sunderland and Nevill 2005) and youth (Phillips et al 2010) game players. The decline in sprint times in those studies ([0.09 s) are higher than the maximum shown by the elites (?0.02) and non-elites (?0.09), which may explain some of the differences.…”

Section: Discussioncontrasting

confidence: 84%

Effect of beta-alanine supplementation on repeated sprint performance during the Loughborough Intermittent Shuttle Test

et al. 2012

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The aim of this study was to examine the effect of β-alanine supplementation on repeated sprint performance during an intermittent exercise protocol designed to replicate games play. Sixteen elite and twenty non-elite game players performed the Loughborough Intermittent Shuttle Test (LIST) on two separate occasions. Trials were separated by 4 weeks of supplementation with either β-alanine (BA) or maltodextrin (MD). There was no deterioration in sprint times from Set 1 to Set 6 of the LIST in either group prior to supplementation (elite: P=0.92; non-elite: P=0.12). Neither BA nor MD supplementation affected sprint times. Blood lactate concentrations were elevated during exercise in both groups, with no effect of supplementation. β-Alanine supplementation did not significantly improve sprint performance during the LIST. Neither group showed a performance decrement prior to supplementation, which might have masked any benefit from increased muscle buffering capacity due to β-alanine supplementation.

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Section: Discussioncontrasting

confidence: 84%

Effect of beta-alanine supplementation on repeated sprint performance during the Loughborough Intermittent Shuttle Test

et al. 2012

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“…Recently, attention has been afforded to addressing the utility of the MSSRT (and other runningbased tests) as markers of sport-specific endurance performance, rather than _ VO 2 max (e.g. Aziz et al 2005a, b;Lemmink et al 2004a, b;Sunderland and Nevill 2005). In the manner of the present study, Aziz et al (2005a) calculated the total number of shuttles completed by their sample of 16 male athletes and games players, referring to it as their 'performance indicator'.…”

Section: Discussionmentioning

confidence: 99%

A re-appraisal of the reliability of the 20 m multi-stage shuttle run test

Lamb

Rogers

2007

Eur J Appl Physiol

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Most studies that have set out to quantify the test-retest reliability of the multi-stage shuttle run test (MSSRT) have typically used inappropriate statistics (correlation coefficients) and/or one of two possible calculation methods for deriving predictions of maximal oxygen uptake (VO2max), and have not considered the impact of habituation on performance in the MSSRT and whether its reliability improves beyond a single repeat trial. In this context, the aim of this study was to assess the reliability of the MSSRT over three trials. Thirty-five healthy and active university games players (22 males and 13 females) performed the MSSRT on three occasions, 1 week apart. Individual total numbers of completed shuttles were recorded and estimated VO2max values were derived via established equation and table methods. Analysis revealed that the overall mean VO2max score from the equation method (52.5 +/- 7.8 ml kg(-1) min(-1)) was significantly higher than that for the table (46.9 +/- 8.9 ml kg(-1) min(-1)), whilst the mean trial 2 and trial 3 scores were significantly higher than that for trial 1, but not different to each other. The Limits of Agreement for the table method were -1.4 +/- 5.0 (trial 1-trial 2) and 0.0 +/- 5.5 ml kg(-1) min(-1) (trial 2-trial 3), and for the equation method -1.1 +/- 4.7 (trial 1-trial 2) and 0.0 +/- 5.0 ml kg(-1) min(-1) (trial 2-trial 3). These results suggest that systematic bias is eliminated after the first trial (due to habituation), but a considerable amount of random error remains, regardless of the type of score calculated. Hence, among our sample, the MSSRT does not appear to be reliable enough for the purpose of monitoring changes in VO2max due to non-random reasons.

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“…6 Besides, body water loss could be associated with the intensity, duration, proprieties and quantity of the outfits used during the practice. 2 In this view, even though studies challenge its efficacy in some occasions, 7 the high-intensity training in treadmill 8 bicycle 9 and using the body´s weight 10,11 has been used with the objective to improve levels of physical fitness as well as health, due to its superiority in relation to moderate exercises. [12][13][14] Nonetheless, studies using the HIIT approach and its effects on sweating and hydration rates are still non conclusive in the literature.…”

Section: Introductionmentioning

confidence: 99%

Sweat Rate Measurements After High Intensity Interval Training Using Body Weight

Machado

Evangelista

Miranda

et al. 2018

Rev Bras Med Esporte

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Introduction: Physical activity raises body temperature, increases the sweat rate and accelerates fluid loss during exercise, thereby impairing exercise performance. However, studies using the high intensity interval training (HIIT) approach and its effects on rates of perspiration and hydration are still inconclusive. Objectives: The objective of this study was to assess sweating and water loss during an HIIT workout session, using body weight, with healthy college students. Methods: Twenty male individuals (31 ± 07 years) were split into two groups: Active group (AG) and Inactive group (IG). The HIIT workout protocol, using body weight, consisted of a single bout with 1:1 stimuli, being: 30" "all out" intensity, involving jumping jack, mountain climber, burpee and squat jump exercises; and 30" of passive recovery, totaling 20 minutes of exercises. For comparison purposes, after 48 hours all the individuals underwent the continuous running protocol with intensity corresponding to 75% of maximum heart rate for 40 minutes. The intensity of the session was monitored continuously, at each 30", using the perceived exertion scale for both protocols. To ensure euhydration status, all individuals ingested 500 ml of water 120 minutes before the training session. Results: Significant differences (p= 0.01) were found in body mass after HIIT compared to the Moderate session in both Active (HIIT: -0.60 ± 0.29 kg, Moderate: -0.26 ± 0.12 kg) and Inactive (HIIT: -0.92 ± 0.30 kg, Moderate: -0.26 ± 0.26 kg) groups, however, no differences were found between groups. Absolute sweating rate values comparing moderate and HIIT single bout in Inactive (Moderate: 10.55 ± 10.59 ml/min; HIIT: 28.90 ± 13.88 ml/min) and Active (Moderate: 9.60 ± 4.52 ml/min; HIIT: 26.00 ± 15.06 ml/min) groups were different between types of exercise, but not between groups. Conclusions: The sweating rate is influenced by the intensity of the exercise, being higher after HIIT than after a moderate exercise session. However, the sweating rate variation is not affected by the subjects' physical activity level. Level of Evidence II; Diagnostic studies-Investigating a diagnostic test.

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High-intensity intermittent running and field hockey skill performance in the heat

Cited by 51 publications

References 29 publications

Effect of beta-alanine supplementation on repeated sprint performance during the Loughborough Intermittent Shuttle Test

Effect of beta-alanine supplementation on repeated sprint performance during the Loughborough Intermittent Shuttle Test

A re-appraisal of the reliability of the 20 m multi-stage shuttle run test

Sweat Rate Measurements After High Intensity Interval Training Using Body Weight

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