Time-of-day and warm-up durations effects on thermoregulation and anaerobic performance in moderate conditions

Chaâri, Nesrine; Frikha, Mohamed; Mezghanni, Norhene; Masmoudi, Liwa; Souissi, Nizar

doi:10.1080/09291016.2013.851904

Cited by 11 publications

(13 citation statements)

References 36 publications

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“…The durations AWU 15 and AWU 20 cause higher HR changes, representing approximately a value of ~ 70% of HR max and an RPE estimation of ~ 11-12. The present findings support those of previous studies [33, 22, 28, 20]. …”

Section: Discussionsupporting

confidence: 94%

“…Our results demonstrate that temperature rises significantly after all warm-up durations (P<0.001), independently of the duration. Similar results were found by Racinais et al [9], Souissi et al [11], Chaâri et al [28] and Frikha et al [37]. As indicated in the literature, temperature rises rapidly within the first 3-5 min of exercise and reaches a plateau after 10-20 min.…”

Section: Discussionsupporting

confidence: 88%

“…AWU 15 allows better improvement of anaerobic performance, when associated with a 5 min recovery interval prior to exercise. The AWU intensity was set at 50% of maximal aerobic power because many studies have shown that warm-up intensity higher than 60% of VO 2max could alter performance during a subsequent cycling sprint [29, 9, 28]. The recovery interval was set at 5 min because it was found that a recovery interval of more than 5 min, but less than 15-20 min, provides the greatest ergogenic effect on short-term performance [8].…”

Section: Discussionmentioning

confidence: 99%

“…The greater improvements of MP and PP after AWU 15 and AWU 5 durations in respectively WREC and NREC conditions are related not only to the rise of core temperature [28, 8], but also to the resynthesis of phosphocreatine (PCr) stores. Although this parameter was not measured in our study, several studies have shown that the re-synthesis of PCr stores, responsible for the improvement of short-term performance, is largely complete within ~5 min of exercise [8, 32].…”

Section: Discussionmentioning

confidence: 99%

“…The highest power output over 1 sec (PP) and the mean power (MP), corresponding to the ratio between total work done and time allocated to do it, were recorded at the end of the test. The fatigue index (FI), i.e., the percentage decrease in power output, was equal to the difference between the highest (PP) and the lowest power (PL) divided by the highest power [2, 28, 11]: Fatigue index = [(PP - PL)/PP] ×100…”

Section: Methodsmentioning

confidence: 99%

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Influence of warm-up duration and recovery interval prior to exercise on anaerobic performance

Frikha¹,

Chaâri²,

Mezghanni³

et al. 2016

Biol Sport

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The purpose of the study was to determine the impact of different active warm-up (AWU) durations and the rest interval separating it from exercise on anaerobic performance. Eleven male physical education students (22.6 ± 2.52 years; 179.2 ± 4.3 cm; 82.5 ± 9.7 kg; mean ± SD) participated in a cross-over randomized study, and they all underwent the Wingate test after three AWU durations: 5 min (AWU5), 15 min (AWU15) and 20 min (AWU20), with recovery (WREC) or without a recovery interval (NREC) separating the AWU and anaerobic exercise performance. All the AWUs consisted of pedalling at a constant pace of 60 rpm at 50% of the maximal aerobic power. The rest interval between the end of warm-up and the beginning of exercise was set at 5 min. During the Wingate test, peak power (PP), mean power (MP) and the fatigue index (FI) were recorded and analysed. Oral temperature was recorded at rest and at the end of the warm-up. Likewise, rest, post-warm-up and post-Wingate heart rate (HR) and rating of perceived exertion (RPE) were recorded during each session. The ANOVA showed a significant effect of recovery interval, warm-up duration and measurement point on RPE scores (P<0.001). Although the effect of AWU duration on MP and PP was significant (P<0.05), the effect of the recovery interval on both parameters was not significant (P>0.05). Moreover, the analyses showed a significant interaction between recovery interval and AWU duration (P<0.001 and P<0.05 for MP and PP respectively). The AWU15 duration improves the MP and PP when associated with a recovery interval prior to exercise of 5 min. However, the AWU5 duration allows better improvement of power output when the exercise is applied immediately after the warm-up. Consequently, physically active males, as well as educators and researchers interested in anaerobic exercise, must take into account the duration of warm-up and the following recovery interval when practising or assessing activities requiring powerful lower limb muscle contractions.

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