Hamstring Flexibility Can Predict Lower Body Anaerobic Power Production in Recreationally Trained College Males

2018 ◽  
Vol 07 (05) ◽  
Author(s):  
Louise A Kelly ◽  
Tyler Schnorf ◽  
Allan Knox
Keyword(s):  
Anaerobic Power ◽  
Power Production ◽  
Lower Body ◽  
College Males ◽  
Hamstring Flexibility

scholarly journals Effects of the lower jaw position on athletic performance of elite athletes

2020 ◽  
Vol 6 (1) ◽  
pp. e000886
Author(s):  
John Patrick Haughey ◽  
Peter Fine
Keyword(s):  
Athletic Performance ◽  
Positive Impact ◽  
Elite Athletes ◽  
Upper Body ◽  
Lower Body ◽  
Lower Jaw ◽  
Hamstring Flexibility ◽  
Jaw Position ◽  
Upper Body Power ◽  
Lower Body Power

When an athlete wears a mouthguard, the position of the lower jaw is changed by virtue of the teeth being unable to occlude. Little research is available in in this area, which have indicated both positive impact and no positive impact.ObjectivesThis study aims to explore the influence of the lower jaw position on athletic performance in elite athletes.MethodsA repeated measures study compared two lower jaw positions, the athlete’s normal (habitual) bite and the lower jaw position when the muscles of mastication are at physiological rest (physiological rest bite). 15 athletes completed a medicine ball putt (upper body power), vertical jump (lower body power), sit and reach (composite hamstring flexibility), passive knee flexion (hamstring muscle length) and star excursion balance (stability and balance) tests in each condition.ResultsPaired t-tests showed the physiological rest bite had significant (p<0.05) positive effect on athletic performance for each test. On average the physiological rest bite provided an increase of lower body power (5.8%), upper body power (10%), hamstring flexibility (14%) and balance and stability (4.8%) compared to the habitual bite.ConclusionThis study provides evidence of the need for further research to confirm if the lower jaw position can be optimised for athletic performance in athletes.

scholarly journals Physical Qualities Pertaining to Shorter and Longer Change-of-Direction Speed Test Performance in Men and Women

Sports ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 45 ◽  
Author(s):  
Robert Lockie ◽  
Brett Post ◽  
J. Dawes
Keyword(s):  
Test Performance ◽  
Vertical Jump ◽  
Anaerobic Power ◽  
Regression Equations ◽  
Lower Body ◽  
Training Time ◽  
Linear Speed ◽  
Change Of Direction ◽  
Explained Variance ◽  
Lower Body Power

This study investigated relationships between shorter (505, change-of-direction (COD) deficit as a derived physical quality) and longer (Illinois agility test; IAT) COD tests with linear speed, lower-body power (multidirectional jumping), and strength in recreationally-trained individuals. Twenty-one males and 22 females (similar to collegiate club-sport and tactical athletes) were assessed in: 505 and COD deficit from each leg; IAT; 20 m sprint; vertical jump (VJ height, peak anaerobic power measured in watts (PAPw), power-to-body mass ratio); standing broad jump; lateral jump (LJ) from each leg; and absolute and relative isometric midthigh pull (IMTP) strength. Partial correlations calculated sex-determined relationships between the COD and performance tests, with regression equations calculated (p < 0.05). The 505 and IAT correlated with all tests except PAPw and absolute IMTP (r = ±0.43–0.71). COD deficit correlated with the LJ (r = −0.34–0.60). Left- and right-leg 505 was predicted by sex, 20 m sprint, and left-leg LJ (70–77% explained variance). Right-leg COD deficit was predicted by sex and left-leg LJ (27% explained variance). IAT was predicted by sex, 20 m sprint, right-leg LJ, and relative IMTP (84% explained variance). For individuals with limited training time, improving linear speed, and relative lower-body power and strength, could enhance shorter and longer COD performance.

Effects of Saddle Height on Anaerobic Power Production in Cycling

2007 ◽  
Vol 21 (4) ◽  
pp. 1023 ◽  
Author(s):  
Will W. Peveler ◽  
Josh D. Pounders ◽  
Phillip A. Bishop
Keyword(s):  
Anaerobic Power ◽  
Power Production

scholarly journals Physical performance characteristics of university male tennis players in division I and II

2019 ◽  
Vol 23 (5) ◽  
pp. 256-261
Author(s):  
E. Özkatar Kaya ◽  
M. Karahan
Keyword(s):  
Physical Performance ◽  
Vertical Jump ◽  
Anaerobic Power ◽  
Performance Characteristics ◽  
Division I ◽  
Lower Body ◽  
Fatigue Index ◽  
Tennis Players ◽  
Study Results ◽  
Index Level

Purpose: The purposes of this study were to examine the physical performance characteristics of Division-I (D-I) and Division-II (D-II) university male tennis players and to evaluate whether these characteristics could be determinative on the divisional differentiation. Material: Twenty athletes who compete in D=I (n=10) and D-II (n=10) of Turkey university tennis league (n=10) and also ranked in top-ten in their division voluntarily participated in this study. Results: Measurement of agility, upper and lower body explosive powers, fatigue index, aerobic and anaerobic powers was conducted on two non-consecutive days. Significant differences were observed in physical performance characteristics powers between the groups (p<0.05). D-I players had significantly greater anaerobic power, agility, vertical jump height, upper and lower body explosive powers, and lower fatigue index level than D-II players. However, aerobic power did not differ between groups. Conclusions: It may be possible that these results allow us to suggest that physical performance characteristics should be regarded as one of the important discriminative factors in determining the competitive level of university male tennis players.

scholarly journals Effect of eccentric strength training and static stretch on hamstring flexibility among futsal players

2019 ◽  
Vol 8 (2) ◽  
pp. 1-7
Author(s):  
Wan Firdaus Wan Chik ◽  
NUR KHAIRUNISA ABU TALIP ◽  
Cliston Siricord
Keyword(s):  
Knee Joint ◽  
Strength Training ◽  
Training Group ◽  
Team Sport ◽  
Lower Body ◽  
Static Stretching ◽  
Static Stretch ◽  
Significant Difference ◽  
Post Test ◽  
Hamstring Flexibility

Futsal is a high intensity team sport game that demands a high physical, technical and tactical ability. The elements of kicking and jumping demands a strong lower body, in which quadriceps act as the primary muscles, whereas the hamstring act as the balancer of the knee joint. The aim of the study was to investigate the effect of eccentric strength training and static stretch on hamstring flexibility among futsal players. 10 recreative male futsal players (n=10) recruited from Universiti Teknologi MARA (UiTM) Samarahan for the study. Subjects were randomly assigned into two groups comprised of eccentric strength training group and static stretching group. Eccentric strength training performed the Nordic hamstring exercise while, static stretch group performed static stretching exercise. All participants went through a 4 weeks program respectively to the set group, with 3 sessions each week. Sit and reach flexibility test was measured. Both groups showed a significant difference between pre and post-test, F = 22.478, p = .001 (p<.05). Thus, both programs are applicable in order to enhance hamstring flexibility and may improve the performance.

scholarly journals RELATIONSHIP BETWEEN LOWER BODY ANAEROBIC POWER AND COMPETITIVE SWIMMING RESULTS OF BULGARIAN SWIMMERS

2019 ◽  
Author(s):  
Mihail Kachaunov ◽  
◽  
Lubomir Petrov ◽  
Lubomir Mladenov ◽  
◽  
...  
Keyword(s):  
Anaerobic Power ◽  
Lower Body ◽  
Competitive Swimming

scholarly journals Absolute and Relative Strength, Power and Physiological Characteristics of Indian Junior National-Level Judokas

Sports ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 14
Author(s):  
Dale M. Harris ◽  
Kristina Kendall ◽  
G. Gregory Haff ◽  
Christopher Latella
Keyword(s):  
Function Analysis ◽  
National Level ◽  
Anaerobic Power ◽  
Gold Medal ◽  
Relative Strength ◽  
Physiological Characteristics ◽  
Lower Body ◽  
Isometric Handgrip ◽  
Change Of Direction ◽  
Body Strength

The physical qualities that underpin successful junior judokas requires continuing investigation. We investigated the physical and physiological characteristics of junior national level judokas. We tested 25 (15 male, 10 female) Indian judokas for absolute and relative strength (back-squat and bench-press one-repetition maximum (1RM) as well as isometric handgrip), aerobic (RAMP test) and lower-body anaerobic power (Wingate 6-s sprint and countermovement jump), change-of-direction (5-0-5 test) and speed (30 m sprint). Athletes were grouped according to national-level competition placing (gold-medal winners (GM; n = 8), all medal winners (MW; n = 13), non-medallists (NM; n = 12), and NM plus silver and bronze; all others (AO; n = 17)). Stepwise discriminant function analysis determined characteristics likely to predict successful performance. Independent t-tests and effect size (Hedge’s g) analyses were performed between groups. GM demonstrated greater lower-body absolute (20.0%; g = 0.87, p = 0.046) and relative 1RM strength (21.0%; g = 0.87, p = 0.047), and greater lower-body absolute (25.4%; g=1.32, p=0.004) and relative (27.3%; g = 1.27, p = 0.005) anaerobic power compared to AO. Furthermore, anaerobic power can correctly predict 76.5% and 62.5% of AO and GM athletes, respectively. No differences were observed between MW and NM groups. The results suggest the importance of lower-body strength and power for junior national-level judokas and provides information for professionals working with these athletes.

scholarly journals Effects of Supplementation of a Pre-workout on Power Maintenance in Lower Body and Upper Body Tasks in Women

2019 ◽  
Vol 4 (2) ◽  
pp. 18 ◽  
Author(s):  
Michael Timothy Lane ◽  
Mark Travis Byrd ◽  
Zachary Bell ◽  
Tyler Hurley
Keyword(s):  
High Intensity ◽  
Bench Press ◽  
Vertical Jump ◽  
Power Production ◽  
Upper Body ◽  
Maximal Velocity ◽  
Lower Body ◽  
Fat Percentage ◽  
Double Blind ◽  
Jump Performance

Currently there is a lack of research into how women respond to pre-workout supplementation. The effects of supplements on exercise performance in women, specifically to power, must be performed. This study investigated the effects of supplementation on power production and maintenance during a high-intensity cycle ergometry sprint performance, vertical jump performance, and bench press performance in women. It also investigated the effects of supplementation on power production and the maintenance of upper and lower body tasks in women. A total of 23 females (22.9 ± 3.6 years, 175.6 ± 6.5 cm, 86.9 ± 15.1 kg, 19.1 ± 8.4 body fat percentage (BF%) (mean ± std. dev.)) were familiarized with the testing protocol and maximal bench press performances were attained (49.5 ± 15.4kg). Utilizing a double-blind crossover design, subjects completed three trials of: Five countermovement vertical jumps, a high-intensity cycle sprint protocol, which consisted of 10 maximal, five second cycle ergometer sprints. Subjects performed a velocity bench press test, utilizing 80% of their predetermined one repetition maximum (1RM) for 10 sets of three repetitions for maximal speed. For 20 min prior to each trial, the subjects ingested, in a randomized order, a pre-workout supplement (Supp), placebo+150 mg caffeine (Caff), or a placebo (PL). Peak power (PP), mean power (MP), and minimum power (MNP) were recorded for each sprint. Maximal velocity from each set was also recorded. Bike sprint and bench press data were normalized to the placebo trial for analysis. Blood lactate (bLa−) was measured immediately prior to each testing session, within 2 min of the completion of the last cycle sprint and following the bench press test. Bike sprint and bench press testing showed no significant differences through the testing sessions, but did significantly decline over test battery (p < 0.05). Vertical jump performance and lactate levels were not significantly different. Supplementation with a pre-workout supplement or placebo with caffeine 20 min prior to participation showed no positive benefits to performance in female participants.

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