Interlimb asymmetries have been recently investigated in athletic populations. However, the effects of training interventions on interlimb asymmetries have been scarcely examined. Therefore, the aim of this study was to determine the effects of training interventions on changes in interlimb asymmetries from pre- to post-training. Furthermore, to examine the effects of training programs on intervention groups compared with control groups. A database search was completed (MEDLINE, CINAHL, and SPORTDiscus). Eight studies were then included in the meta-analysis. Results showed small reductions in interlimb asymmetries in single-leg broad jump (SLBJ) and change of direction (COD) speed from pre- to post-training interventions, whereas moderate effects were found in single-leg countermovement jump (SLCMJ) and SL lateral jump. When comparing the training interventions with the control groups, results showed small effects in favor of the training groups for reducing interlimb asymmetries in SLBJ and large effects in SLCMJ and COD speed. Thus, training interventions can evoke small to moderate reductions in interlimb asymmetries from pre- to post-training programs. Strength training performed unilaterally or bilaterally may elicit these reductions. Furthermore, training interventions showed larger effects compared with the control groups in reducing interlimb asymmetries. However, further research is needed.

Mike Israetel discusses where strength training overlaps with hypertrophy training, and how you can get the best of both training methods.

Tex McQuilkin, Director of Training for Power Athlete HQ, defines athleticism as a trainable performance variable at the 2019 Coaches Conference. McQuilkin illustrates the four phases of the competitive lifecycle for sport athletes and empowers coaches with strategies to best apply progressive overload and support the long-term trainability of novice athletes.

Make the most of your membership by engaging with others through one or more Special Interest Groups (SIGs).

The aim of this article was to systematically review and provide practical recommendations, where possible, for recovery strategies that are currently in use in soccer-specific practices among adult male professional players. A systematic search was conducted according to PRISMA guidelines on Web of Science, SPORTdiscus, Scopus, and PubMed databases. The effects of cold-based recovery techniques on performance recovery and attenuating the muscle soreness were evident. Complementarily, some evidence was found that favors foam rolling and massage and compression garments. The active recovery and electronic recovery instruments presented little evidence supporting their usefulness in accelerating the recovery process of soccer players.

Answers to 7 common questions about CASCE accreditation and resources to clarify and streamline the process.

The physiological response to breath holding includes bradycardia and peripheral vasoconstriction, which contrasts with that of exercise which includes tachycardia and peripheral vasodilation. This raises the question as to what the physiological response is to breath holding during exercise. During low-intensity exercise, the breath holding response of bradycardia and peripheral vasoconstriction prevails over the exercise response of tachycardia and peripheral vasodilation, but nevertheless the exercise may be sustained. Due to the lack of availability of extrinsic oxygen (O 2 ) from the atmosphere during breath holding, the energy demands can be met by increased reliance on intrinsic O 2 stores (i.e., O 2 that was in the body before the breath hold) via increased O 2 extraction at the muscle compared with exercise while breathing, or increased contributions from anaerobic energy systems. During high intensity exercise of short duration, the exercise response may prevail over the breath holding response due to the increased parasympathetic withdrawal and sympathetic drive of higher intensity exercise. If breath holding during high-intensity exercise was sustained for long enough, the breath holding response may eventually overcome the exercise response, although this may be difficult due to the inverse relationship between exercise intensity and breath hold duration.