Seasonal variation of physical performance and inter-limb asymmetry in professional cricket athletes
Article
Bishop, C., Weldon, A., Hughes, J., Brazier, J., Loturco, I., Turner, A. and Read, P. 2021. Seasonal variation of physical performance and inter-limb asymmetry in professional cricket athletes. The Journal of Strength and Conditioning Research. 35 (4), pp. 941-948. https://doi.org/10.1519/jsc.0000000000003927
Type | Article |
---|---|
Title | Seasonal variation of physical performance and inter-limb asymmetry in professional cricket athletes |
Authors | Bishop, C., Weldon, A., Hughes, J., Brazier, J., Loturco, I., Turner, A. and Read, P. |
Abstract | The aims of the present study were to: 1) determine the seasonal variation of physical performance in professional cricket players, 2) determine the seasonal variation of inter-limb asymmetries in the same cohort of professional players. Fifteen male professional cricket players (age: 20.60 ± 1.59 years; height: 1.82 ± 0.08 m; body mass: 78.70 ± 11.23 kg) performed unilateral countermovement jumps (CMJ), unilateral drop jumps, 10m sprints and 505 change of direction (COD) speed tests at pre (March), mid (June) and end (September) of the 2018 season. Inter-limb asymmetry was quantified in the unilateral CMJ (jump height and concentric impulse), unilateral drop jump (jump height and reactive strength index – RSI) and 505 (total time and COD deficit). Significant changes (p < 0.05) were evident for the following tests: unilateral CMJ (ES range = 0.67 to 1.00), 505 on the right leg (ES = 0.70), 10m (ES range = -1.39 to 0.70) and COD deficit (ES range = 0.70 to 0.80), with the largest changes evident for 10m sprint. No significant differences were evident in drop jump performance throughout the season. For the magnitude of asymmetry, significant changes in jump height asymmetry from the unilateral CMJ were evident from mid to end of season (ES = 0.72). For the direction of asymmetry, levels of agreement ranged from poor to substantial in the unilateral CMJ (Kappa = -0.21 to 0.72), fair to substantial in the unilateral drop jump (Kappa range = 0.33 to 0.74) and slight to moderate during the 505 test (Kappa range = 0.06 to 0.44), with RSI showing noticeably better results than other tests or metrics. These data shows that the largest changes in performance scores throughout the season came from the 10m test, which practitioners may wish to consider implementing if not doing so already. Furthermore, both unilateral jump tests showed their use for asymmetry interpretation, which practitioners may wish to consider implementing in to their test batteries. Specifically, jump height asymmetry during the unilateral CMJ was the only metric to exhibit meaningful changes between time points, whilst RSI was the metric that exhibited more consistent limb dominance characteristics for the direction of asymmetry. |
Research Group | Strength and Conditioning at the London Sport Institute |
Publisher | Lippincott, Williams and Wilkins |
Journal | The Journal of Strength and Conditioning Research |
ISSN | 1064-8011 |
Electronic | 1533-4287 |
Publication dates | |
Online | 11 Feb 2021 |
01 Apr 2021 | |
Publication process dates | |
Deposited | 26 Oct 2020 |
Submitted | 10 Jun 2020 |
Accepted | 25 Oct 2020 |
Output status | Published |
Accepted author manuscript | License |
Copyright Statement | This is a non-final version of an article published in final form in Bishop, Chris; Weldon, Anthony; Hughes, Jon; Brazier, Jon; Loturco, Irineu; Turner, Anthony; Read, Paul Seasonal Variation of Physical Performance and Inter-limb Asymmetry in Professional Cricket Athletes, Journal of Strength and Conditioning Research: April 2021 - Volume 35 - Issue 4 - p 941-948 doi: 10.1519/JSC.0000000000003927 |
Digital Object Identifier (DOI) | https://doi.org/10.1519/jsc.0000000000003927 |
Language | English |
https://repository.mdx.ac.uk/item/8925v
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