Effect of Time of Day and Concentric or Eccentric Strength Training on Muscle Strength

Malhotra, Deepak; Narula, Richa; Zutshi, Kalpana; Kapoor, Gagan; Aslam, Benish

doi:10.5958/j.0973-5674.8.1.026

Cited by 1 publication

(2 citation statements)

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“…Previous literature has not accounted for circadian rhythm [25,26]. Applying this in practice can be challenging due to coach demands, time restriction and fixture congested periods [32] and further work is required around maintenance of proprioceptive levels.…”

Section: Resultsmentioning

confidence: 99%

“…Participants were randomly allocated to one of two groups (Randomisation.com), being determined a score output at baseline, then again at 4, 8 and 16 weeks. All measures were taken between 13:00 and 17:00 hrs at all-time points to account for the effects of circadian rhythm [25,26] and in accordance with regular training and competition times. The BSS (Biodex Medical Systems, Shirley, NY) is an unstable platform that can tilt up to 20 o in any direction, with the stability of the platform determined by the level by which it is set ranging from 1 (most unstable) to 12 (most stable) [27].…”

Section: Experimental Designmentioning

confidence: 99%

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The Effect of Proprioceptive Training on Directional Dynamic Stabilization

Rhodes¹,

Leather²,

Birdsall³

et al. 2021

Journal of Sport Rehabilitation

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Objectives: Significant loss of playing time and the impact of treatment costs due to lower limb injury in football demonstrates a need for improved protocols for injury risk reduction. The aim of the present study is to assess the effect of a proprioceptive training program on the lower limb dynamic stability of elite footballers. Methods: A total of 16 elite premier league footballers were randomly allocated by matched pair design to a 8-week proprioception training group (group A, n = 8) or nontraining group (group B, n = 8), to determine the effect of this training over a 16-week period. Group A completed 8 weeks of bilateral proprioceptive training, 5 times per week for 10 minutes. The Biodex Stability System measures of overall stability index, anterior–posterior (A–P), and medial–lateral stability (M–L) at levels 8-6-4-1 were taken for both groups at baseline, 4, 8, and 16 weeks. Main effects of time, level of stability, and direction of stability were determined, with comparisons of effect made between the 2 groups. Results: The training group displayed significant differences for multidirectional stability at week 8 (P ≤ .05). The A–P stability within the training group displayed significant differences between baseline measures and 16 weeks (P > .05), with significant increases in scores displayed for M–L and A–P stability between weeks 8 and 16 (P ≤ .05), representing a detraining effect. No significant differences were detected at any time point for the nontraining group (P > .05). Conclusions: Proprioceptive training over 8 weeks has a positive effect on all directions of stability. Greater declines in A–P stability were evident at 16 weeks when compared with M–L and overall stability index. Consideration must be given to the increased stability scores presented pretesting for A–P when compared with M–L. Findings of this work present implications for training design.

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Section: Resultsmentioning

confidence: 99%