Core stability of male and female football players

SummaryStudy aim: To investigate the correlation between anthropometric parameters, Sargent jump test, core muscles endurance and agility performance versus specific tests with and without a ball in female Brazilian field hockey athletes. Material and methods: Nine professional female field hockey players (age: 27.4 ± 2.5 years) participated in this study. Body height, body weight, body fat percentage, Sargent jump test (SJT), shuttle run agility test (SR), core muscular endurance tests and sport-specific tests -repeated sprint ability test (RSA) and repeated sprint ability with the ball (RSAB) -were assessed in a randomized order. Results: A moderate correlation was noted between SR and RSAB (r = 0.58, p = 0.09) and RSA (r = 0.60, p = 0.08). In addition, a moderate correlation was noted between percentage of body fat with RSAB (r = 0.59, p = 0.09) and with RSA (r = 0.72, p = 0.08). The other variables showed slight agreement or no agreement. Conclusions: These results indicated that the SR could be implemented in training and evaluation programs of hockey athletes due to the correlation with specific tests. Thus, the percentage of body fat was the only anthropometric parameter that showed a correlation with the specific tests, revealing the importance of maintaining a proper percentage of body fat for better performance in hockey.

Section: Discussioncontrasting

confidence: 48%

Anthropometric and physical fitness parameters versus specific performance tests in Brazilian field hockey athletes: a pilot study

Lemos

Paz

Maia

et al. 2017

“…This explains the interest of coaches [15] and physical therapists [8] in such exercises. Especially in low back pain (LBP) prevention, abdominal exercises should be performed in positions that prevent overload to the lumbar region of the vertebral column.…”

Section: Introductionmentioning

confidence: 99%

External torque as a factor to modify load in abdominal curl-up exercises

Rutkowska-Kucharska

Szpala

2015

SummaryStudy aim: the aim of our study was to evaluate electromyography (EMG) activity in exercises where the load to the muscles is determined by the external torque. In a part of the exercises, we changed the value of the external force, while in the other we modified the length of the lever arm at which the force was applied. Material and methods: the study was carried out on a group of 12 subjects (21 ± 2 years, 61 ± 4.8 mass, 172 ± 5 cm height). Electromyographic activity of the rectus abdominis (RA) muscle was evaluated by recording the EMG signal. The length of the lever arm of the external force was changed by using four different positions of the upper limbs, whereas the magnitude of the external force was changed through adding the weights of 0.5, 1.0, and 1.5 kg. The data recorded were normalized with respect to EMG activity measured under maximum voluntary contraction (MVC) conditions. Results: it was found that the change of the lever arm at which the force was applied (any change in the position of the upper limbs) causes a change in EMG activity in each part of the RA muscle from ca. 50% to ca. 100% MVC (p < 0.001). Further, the change in the external load changes statistically significantly the EMG activity only in the left upper part of the RA muscle (p < 0.05). Conclusions: activity in the RA muscle that increased for longer lever arms of the external force, offers opportunities for changing the load used during the exercise in a manner that is safe for the vertebral column.

“…The players of the defensive team are: linebackers, ends, defensive tackles, cornerbacks and safeties [25]. American football requires exceptional abilities and the development of physical qualities [26,40].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of strength, agility and aerobic capacity in Brazilian football players

Raymundo

Pernambuco

Brum

et al. 2018

SummaryStudy aim: To evaluate the levels of strength, agility and the maximal oxygen uptake (VO 2max ) between the offensive and defensive teams of football players. Material and methods: In the present cross-sectional study, 20 male Brazilian football players were divided into an offensive group (OG, n = 10, age: 25.50 ± 6.15 years) and a defensive group (DG, n = 10, age: 22.50 ± 5.48 years). We used the dynamometer for back and legs, the shuttle run test, and the Cooper test to evaluate strength, agility and VO 2max , respectively. Results: The independent Student t-test showed that the OG was significantly more agile than the DG (p < 0.05). The other variables did not show any statistically significant differences. In the OG there was a strong correlation between agility and VO 2max (r = -0.834, p = 0.003, r 2 = 0.70). However, in the DG there was a moderate correlation between the same variables (r = -0.677, p = 0.031, r 2 = 0.46). This shows that the greater the agility is, the higher is the VO 2max . There was no correlation between the variables muscle strength and body fat percentage. Conclusions:The study showed that the OG has a better physical condition than the DG.