The evidence indicates that functional training is beneficial for athletes’ physical and technical performance. However, a systematic review of the effects of functional training on athletes’ physical and technical performance is lacking. Therefore, this study uses a literature synthesis approach to evaluate the impact of functional training on the physical and technical performance of the athletic population and to extend and deepen the existing body of knowledge. This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, and the researchers performed a systematic search of five international electronic databases using the predefined terms "functional training" and "athletes" on 15th November 2023: Web of Science, CINAHL PLUS, PubMed, Scopus, and SPORTDiscus. A PICOS approach was used to identify the following inclusion criteria: (1) athletes, (2) a functional training program, (3) an active control group, (4) a measure of physical and/or technical performance, and (5) randomized controlled studies. A methodological quality assessment of the original research was conducted using the Physiotherapy Evidence Database (Pedro) scale. The review was performed using the PRIMSA guidelines and registered in PROSPERO (ID: CRD42022347943). Of the 1059 potentially eligible studies identified, 28 studies met the inclusion criteria. The studies included were conducted on 819 athletes from 12 different countries and were published between 2011 and 2023. The assessment was performed on the Pedro scale, and the mean Pedro score for the included studies was 5.57 (moderate quality, ranging from 4 to 10). The eligibility study reported on 14 different types of sports, with 22 studies focusing on physical performance and 11 studies focusing on technical performance. These studies have shown that functional training can significantly improve the physical and technical performance of athlete populations, but in some studies, no significant difference in the data was observed between groups. Functional training is an effective training method for enhancing the physical and technical performance of athlete populations. However, no significant difference in the data was observed between the functional training groups and the regular training group, which may be due to the duration of the training program, the different training experiences of the athletes, and the different focuses of the training regimens. Therefore, future studies should focus on the physical and technical performance of different sports groups with different types and durations of functional training programs to expand the current evidence base.

Background: Functional training is any type of training designed to improve a specific movement or activity for fitness or high performance sports. This study examined the effect of functional training on the strength and power of young tennis players. Methods: 40 male tennis players were assigned to the functional training group (n = 20; age, 16.7 ± 0.4 years) or the conventional training group (n = 20; age, 16.5 ± 0.6 years). The functional training group received three 60 min sessions per week for 12 weeks, while the conventional training group participated in three sessions per week of mono-strength exercise for 12 weeks. Strength and power were measured according to the International Tennis Federation protocol at baseline, 6 weeks after the intervention, and 12 weeks after the intervention. Results: Both forms of training increased (p < 0.05) push-ups, wall squat test, over medicine ball throw, and standing long jump after 6 weeks of training, and the effect improved further as the 12-week mark approached. Except for the wall squat test (left) at 6 weeks, functional training showed no advantage over conventional training. After an additional 6 weeks of training, all measures of strength and power were better (p < 0.05) in the functional training group. Conclusions: Improvements in strength and power could occur after as little as 6 weeks of functional training, and 12-week functional training could outperform conventional training in male adolescent tennis players.

This study examines the dilemmas physical education teachers face in reshaping their professional roles within Intelligent Physical Education (IPE) and proposes evidence-based relief strategies. Using a mixed-methods approach, a simple random sampling technique was employed for the quantitative phase, resulting in a usable sample size of N = 126 respondents. Moreover, for the qualitative phase, a purposive sampling strategy was employed, and five physical education teachers were selected for interviews. We integrated quantitative survey data with in-depth qualitative interviews to explore dimensions of job crafting. Our findings reveal significant cognitive, task-based, and relational challenges in adapting to innovative educational environments. Quantitative analysis reveals crucial predictive factors influencing these adaptation challenges, while qualitative data highlight insufficient understanding of AI applications, inadequate institutional support, and deficient technological infrastructure as key barriers. Teachers also expressed concerns about maintaining meaningful teacher-student relationships amid technological transformation. The study demonstrates that teachers' successful adaptation depends on systemic support rather than individual effort alone. We propose comprehensive strategies, including conceptual training, infrastructure development, and ethical guidelines, to facilitate effective job crafting. These findings contribute to understanding educator adaptation in technologically transforming educational landscapes and offer practical guidance for implementing intelligent physical education reforms.

Objectives: Functional training mimics the coordinated motions of multiple muscle groups and joints performed during exercise. The purpose of this study was to compare the effects of a 12-week functional training and traditional resistance training on the performance in junior tennis players. Methods: Trained tennis players (mean age: 16.6 years) were assigned to a traditional training group (n = 20) or functional training group (n = 20). The traditional training group received a resistance training program by their coach, while the functional training group was given Santana’s Racket Sport Program. At baseline, after six weeks, and after 12 weeks (T12), the participants’ tennis-specific physical fitness and functional movement screen (FMS) were evaluated. Results: At T12, both training improved the values for multistage fitness test, hexagon test, planned agility test, sit and reach, and 20 metre sprint (p < 0.05); except the flexibility, functional training provided no additional advantages. At T12, functional training enhanced (p < 0.01) all seven components of the FMS, and there is a 100% probability that the total score of the FMS would be enhanced. In contrast, for the traditional training group, shoulder mobility of the FMS decreased (p = 0.03), and there was no changes in other FMS components at T12. Conclusions: Functional training is not only effective in improving tennis-specific physical fitness, but it also provides greater functional movement advantages for junior tennis players compared to traditional resistance training.

Functional training to improve athletes’ technical performance and movement quality is becoming increasingly popular, but few studies have focused on young tennis players. The aims of this study were to compare the effects of 12 weeks of functional training on skilled youth male tennis players’ skill performance and movement quality. Forty skilled youth male tennis players were assigned to the functional training group (n = 20) or the control training group (n = 20). The control group received a traditional resistance training program by their coach, whereas the functional training group was given Santana’s Racket Sports Program. Each group received 60-minute training sessions three times per week for 12 weeks. At baseline (T0), after six weeks (T6), and after 12 weeks (T12), the participants’ skill performance was measured according to the International Tennis Federation’s protocol, and movement quality was measured according to the functional movement screening assessment recommended by Gray Cook. The data were analyzed via a generalized estimation equation model. The results revealed that there were no significant differences in skill performance or movement quality between the groups at baseline (p > 0.05), but there were significant differences in those variables between the groups after 6 weeks of the intervention and 12 weeks of the intervention (p < 0.05). These results indicate that the functional training model seems to be more effective than the traditional resistance training model in terms of increasing athletic skill performance and movement quality. The inclusion of functional training as part of an athlete’s training routine is highly recommended, as it has proven to be an effective method for improving skill performance and movement quality. ISRCTN67565717, registered 26/07/2024, retrospectively registered.

Purpose: here is a general consensus that an inverse relationship exists between vitamin D status and body mass index (BMI) in overweight and obese individuals, leading to the hypothesis that vitamin D deficiency may contribute to the development of unfavorable metabolic phenotypes. However, evidence from non-obese adults remains limited. This study measured energy metabolism in non-obese adults using a metabolic chamber and explored its association with vitamin D status.Methods: Sixty-nine healthy adults (mean age = 22.8 years, mean BMI = 20.7 kg/m²) participated in this cross-sectional study. Participants were categorized into vitamin D-deficient, insufficient, and sufficient groups based on the Chinese classification for total 25(OH)D levels (WS/T 677–2020). They performed typical daily activities in a metabolic chamber, where their baseline lipid profile, 24-hour energy expenditure, and substrate oxidation were measured.Results: A two-way ANOVA (seasonality × 25(OH)D) revealed no statistically significant differences in total energy expenditure, resting energy expenditure, sleeping energy expenditure, walking energy expenditure, carbohydrate oxidation rate, or fat oxidation rate among the three groups (p > 0.05). These results remained consistent even after adjusting for fat-free mass. Although statistically significant correlations were found between 25(OH)D status and certain lipid profile markers (i.e., total cholesterol, high-density lipoprotein, and free fatty acid) (p < 0.05), these correlations were weak, with Pearson’s correlation coefficients below 0.3.Conclusions: Total 25(OH)D status does not affect energy metabolism in young, healthy, non-obese adults. Along with existing evidence, this suggests that low 25(OH)D status is more likely a consequence of unfavorable metabolic phenotypes rather than a contributing factor.Clinical trial registration: https://www.chictr.org.cn, identifier ChiCTR-IIR-17010604.