WARM-UP PROCEDURES HAVE BECOME RELEVANT FOR COACHES, RESEARCHERS, AND SPORTS PROFESSIONALS IN RECENT YEARS. SEVERAL STUDIES HAVE BEEN CONDUCTED TO VERIFY THE EFFECTS OF DIFFERENT PREACTIVITIES, REGARDING DIFFERING VOLUME, INTENSITY, REST, AND SPECIFICITY, AND THE WARM-UP IS NOW WIDELY ACCEPTED AS AN ESSENTIAL PRACTICE TO IMPROVE PERFORMANCE. RESEARCH IS NOW FOCUSING ON THE EFFECTS OF STATIC AND DYNAMIC STRETCHES, POSTACTIVATION POTENTIATION PHENOMENON, AND OPTIMIZATION OF WAITING PERIODS WITH PASSIVE WARM-UP APPROACHES. IN THIS BRIEF REVIEW, WE CRITICALLY ANALYZE THE EMERGING METHODS AND STRATEGIES OF WARM-UP THAT HAVE BEEN INVESTIGATED AND USED BEFORE COMPETITIVE EVENTS.

Concurrent resistance and aerobic training (CT) has been applied to optimize both strength and aerobic performance. However, it should be carefully prescribed, as there are some factors, as the training intensity, which have strong influence on training adaptations. Thus, we conducted a systematic review to analyze the scientific evidence regarding aerobic and resistance exercise intensities during CT and their effect on performance outcomes. The effects of exercise intensity on a subsequent detraining period were also assessed. Nine studies met the inclusion criteria, the risk of bias was assessed, and the percentage of changes and effect sizes were quantified. CT improved running times (10 m, 30 m and 10 km) and strength performance (one-repetition maximum, countermovement jump) regardless of exercise intensity used (4–47%, ES=0.4–2.8). Nevertheless, higher aerobic training intensities (≥ lactate threshold intensity) resulted in higher aerobic gains (5–10%, ES=0.3–0.6), and greater neuromuscular adaptations were found when higher resistance loads (≥ 70% of maximal strength) were used (10–14%, ES=0.4–1.3). Most training-induced gains were reversed after 2–4 weeks of detraining. Although further research is needed, it seems that higher intensities of aerobic or resistance training induce greater aerobic or neuromuscular gains, respectively. Nevertheless, it seems that higher resistance training loads should be combined with lower aerobic training intensities for increased strength gains and minimal losses after detraining.

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The purpose of this study was to assess the degree of transference of 6 weeks of full squat vs. full squat plus sprint running training to short (ranged from 0-10 to 0-30 m) sprint running performance in non-athletes. We hypothesized that a speed-full-squat training regimen could enhance squat strength and power with simultaneous improvements in short sprint performance. 122 physically active adults (age: 20.5±2.5 years; body mass: 65.8±6.1 kg; height: 1.71±0.08 m) were randomly divided into 4 groups: full squat training (n=36), combined full squat and sprint training (n=32), speed training only (n=34) and non-training control group (n=20). Each training group completed 2 sessions per week over 6 weeks, while the control group performed only their normal physical activity. Sprint performance was improved after sprint running or full squat training alone (1.7% and 1.8% P<0.05, respectively), however larger enhancements (2.3%; P<0.01) were observed after the combined full squat plus sprint training intervention. These results suggest that in recreationally active adults, combined full squat and sprint training provides a greater stimulus for improving sprint performance than either modality alone.