1
|
Paravlic AH, Abazovic E, Milanović Z, Vučković G, Spudić D, Hadzic V, Pajek M, Vodičar J. The association between unilateral and bilateral performance-related measures in elite female soccer players: a multifaceted investigation. Front Physiol 2024; 15:1298159. [PMID: 38952868 PMCID: PMC11215189 DOI: 10.3389/fphys.2024.1298159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 05/21/2024] [Indexed: 07/03/2024] Open
Abstract
Purpose The present study aimed to investigate a) the associations between bilateral performance utilizing countermovement jump (CMJ), squat jump (SJ), speed and unilateral CMJ, isokinetic peak torque in knee extension and flexion with angular velocities of 60°/s and 180°/s and tensiomyography (TMG) parameters; b) whether the asymmetries derived from unilateral tests are associated with bilateral CMJ, SJ and speed in elite female soccer players. Methods Thirty-five elite female soccer players (average age: 20 ± 5 years) completed CMJ, SJ, speed, isokinetic muscle strength and TMG tests. Results Compared to the non-dominant leg, the dominant leg demonstrated greater peak torque output in both knee flexion (7.4%) and knee extension (5.6%) isokinetic tasks, as well as m. vastus medialis contraction time (7.6%), and soccer-specific agility test (4.1%). Conversely, the hamstring to quadriceps peak torque ratio at 180°/s (8.5%) was significantly greater in the non-dominant leg. The associations between CMJ, SJ and speed performance were positive and ranged from weak (r = 0.350) to high (r = 0.710). For speed and TMG-derived variables, correlations were negative and ranged from weak (r = -0.345, p = 0.042, for vastus medialis contraction time) to moderate (r = -0.530, p = 0.001, for biceps femoris contraction time). Furthermore, both bilateral CMJ and SJ negatively correlated with TMG-derived variables, ranging from weak (r = -0.350, p = 0.039, for vastus lateralis contraction time) to moderate (r = -0.537, p = 0.003, for rectus femoris contraction time). Conclusion The overall significant, albeit inconsistent, correlations between the diverse performance scores obtained highlight the necessity for a multifaceted and thorough diagnostic strategy in female soccer players.
Collapse
Affiliation(s)
- Armin Huso Paravlic
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
- Science and Research Centre Koper, Institute for Kinesiology Research, Koper, Slovenia
- Faculty of Sports Studies, Masaryk University, Brno, Czechia
| | - Ensar Abazovic
- Faculty of Sport and Physical Education, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Zoran Milanović
- Science and Research Centre Koper, Institute for Kinesiology Research, Koper, Slovenia
- Faculty of Sports Studies, Masaryk University, Brno, Czechia
- Faculty of Sport and Physical Education, University of Nis, Nis, Serbia
| | - Goran Vučković
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
| | - Darjan Spudić
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
| | - Vedran Hadzic
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
| | - Maja Pajek
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
| | - Janez Vodičar
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
| |
Collapse
|
2
|
Szabó ZT, Derkács E, Deli B, Prémusz V, Vass L, Pusztafalvi H, Ács P. The effect of a 10-week TOCA Football System intervention program on sport-specific motor skills among junior footballers. Front Sports Act Living 2024; 6:1339768. [PMID: 38812892 PMCID: PMC11136502 DOI: 10.3389/fspor.2024.1339768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 04/22/2024] [Indexed: 05/31/2024] Open
Abstract
Introduction The objective of our study was to examine, in addition to using the TOCA Football System tool and training method, the effect of a 10-week intervention on elite youth athletes in terms of their sport-specific motor skills and anthropometric variables. Methods The study covered a group of 32 young players practicing football (U14) (13.45 ± 0.64 years). The junior U14 footballers were randomly assigned to an intervention or TOCA group (TG, N = 15, 13.25 ± 0.58 years) and a control group (CG, N = 17, 13.63 ± 0.66 years). Before starting the test, we performed full anthropometric measurements and assessed the sample's agility with and without the ball and their sport-specific endurance. The measurements were then repeated after the 10-week intervention. Results Within-group analysis showed significant improvements in muscle mass (p < 0.001), sport-specific endurance (p < 0.001), (p < 0.004) and agility (in TG) both with and without the ball (p = 0.002), (p = 0.004) however, we did not find a significant change in body fat percentage in either group (p = 0.988, p = 0.288). In the CG, "agility with the ball" changed significantly only (p = 0.023). In the between-group analysis with a repeated-measures analysis of variance (mixed-design ANOVA), there was no significant interaction in any performance variables. The main findings of this study indicate that a TOCA Football training program in addition to normal training during the in-season period does not produce additional effects in anthropometric factors, sport-specific endurance and agility performance with the ball (dribbling) and without the ball in comparison with the control condition. Discussion From a practical point of view, the presented anthropometric and physical profiles of players can be useful for football coaches in optimizing soccer training. Overall, it also can be concluded that the device can be safely used in the sensitive age group in terms of the development of motor skills since we did not find any negative effects during the use of the device in terms of the parameters we examined. In addition to the expansion of the number of elements and the inclusion of other age groups, it is advisable to carry out further complex tests, as the TOCA Football System offers many research opportunities.
Collapse
Affiliation(s)
- Zoltán Tamás Szabó
- Faculty of Health Sciences, Institute of Physiotherapy and Sport Science, University of Pécs, Pécs, Hungary
- Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
- Physical Activity Research Group, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Evelin Derkács
- Faculty of Health Sciences, Institute of Physiotherapy and Sport Science, University of Pécs, Pécs, Hungary
- Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
- Physical Activity Research Group, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Balázs Deli
- Faculty of Natural Sciences, Institute of Sport Science and Physical Education, University of Pécs, Pécs, Hungary
| | - Viktória Prémusz
- Faculty of Health Sciences, Institute of Physiotherapy and Sport Science, University of Pécs, Pécs, Hungary
- Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
- Physical Activity Research Group, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Lívia Vass
- Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
| | - Henriette Pusztafalvi
- Faculty of Health Sciences, Institute of Health Insurance, University of Pécs, Pécs, Hungary
| | - Pongrác Ács
- Faculty of Health Sciences, Institute of Physiotherapy and Sport Science, University of Pécs, Pécs, Hungary
- Physical Activity Research Group, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| |
Collapse
|
3
|
Montoro-Bombú R, Miranda-Oliveira P, Valamatos MJ, João F, Buurke TJW, Cupido Santos A, Rama L. Spatiotemporal variables comparison between drop jump and horizontal drop jump in elite jumpers and sprinters. PeerJ 2024; 12:e17026. [PMID: 38426130 PMCID: PMC10903347 DOI: 10.7717/peerj.17026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/07/2024] [Indexed: 03/02/2024] Open
Abstract
Background General expectations speculated that there are differences between drop jump (DJ) and horizontal drop jump (HDJ) exercises. While these criteria may be valid, we have yet to find a report that explores these differences in competitive level athletes. Objective The study aimed to compare spatiotemporal variables in the drop jump (DJ) vs. the horizontal drop jump (HDJ) in elite jumpers and sprinters. Methods Sixteen international-level male athletes performed two DJ attempts at different fall heights 0.3, 0.4, and 0.5 m (DJ30, DJ40, and DJ50), and after 2 h, they performed two HDJ attempts (HDJ30, HDJ40, HDJ50). All jumps were performed on a Kistler force plate. The variables analyzed were ground contact time (GCT), flight time (FT), eccentric phase time, concentric phase time, and time to peak concentric force. Results The GCT was found to be significantly shorter in DJ vs. HDJ (Z = 4.980; p = 0.0001; ES = 3.11). FT was significantly lower in DJ30 versus HDJ30 (Z = 4.845; p = 0.0001, d = 3.79), but significantly higher in DJ40 vs. HDJ40 (Z = 4.437; p ≤ 0.0001, d = 3.70) and in DJ50 vs. HDJ50 (Z = 4.549; p ≤ 0.0001, d = 4.72). Conclusions It is concluded that the HDJ requires more time for force production, that the eccentric component requires more time than the concentric and that it is not recommended to use the HDJ over the DJ for reactive purposes. This is the first study that comprehensively compare the differences between DJ and HDJ, which will assist coaches and researchers in the design of future training strategies.
Collapse
Affiliation(s)
- Raynier Montoro-Bombú
- University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, Coímbra, Portugal
| | - Paulo Miranda-Oliveira
- Portuguese Athletics Federation (FPA), Lisboa, Lisboa, Portugal
- School of Technology and Management (ESTG), Polytechnic of Leiria, Leiria, Portugal
- Interdisciplinary Research Centre Egas Moniz (CIIEM), Egas Moniz School of Health & Science, Almada, Portugal
| | - Maria João Valamatos
- Centro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculdade de Motricidade Humana, Lisboa, Cruz-Quebrada, Portugal
- Laboratório de Biomecânica e Morfologia Funcional, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Lisboa, Cruz-Quebrada, Portugal
| | - Filipa João
- Centro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculdade de Motricidade Humana, Lisboa, Cruz-Quebrada, Portugal
- Laboratório de Biomecânica e Morfologia Funcional, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Lisboa, Cruz-Quebrada, Portugal
| | - Tom JW Buurke
- University of Groningen, University Medical Center Groningen, Department of Human Movement Sciences, Groningen, Netherlands
- KU Leuven, Department of Movement Sciences, Leuven, Belgium
| | - Amândio Cupido Santos
- University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, Coímbra, Portugal
| | - Luis Rama
- University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, Coímbra, Portugal
| |
Collapse
|
4
|
De Lazzari B, Mascia G, Vannozzi G, Camomilla V. Estimating the Standing Long Jump Length from Smartphone Inertial Sensors through Machine Learning Algorithms. Bioengineering (Basel) 2023; 10:bioengineering10050546. [PMID: 37237616 DOI: 10.3390/bioengineering10050546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
The length of the standing long jump (SLJ) is widely recognized as an indicator of developmental motor competence or sports conditional performance. This work aims at defining a methodology to allow athletes/coaches to easily measure it using the inertial measurement units embedded on a smartphone. A sample group of 114 trained young participants was recruited and asked to perform the instrumented SLJ task. A set of features was identified based on biomechanical knowledge, then Lasso regression allowed the identification of a subset of predictors of the SLJ length that was used as input of different optimized machine learning architectures. Results obtained from the use of the proposed configuration allow an estimate of the SLJ length with a Gaussian Process Regression model with a RMSE of 0.122 m in the test phase, Kendall's τ < 0.1. The proposed models give homoscedastic results, meaning that the error of the models does not depend on the estimated quantity. This study proved the feasibility of using low-cost smartphone sensors to provide an automatic and objective estimate of SLJ performance in ecological settings.
Collapse
Affiliation(s)
- Beatrice De Lazzari
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
- Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
- GoSport s.r.l., Via Basento, Lazio, 00198 Roma, Italy
| | - Guido Mascia
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
- Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
| | - Giuseppe Vannozzi
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
- Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
| | - Valentina Camomilla
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
- Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, Lazio, 00135 Roma, Italy
| |
Collapse
|
5
|
Lin J, Shen J, Zhang J, Zhou A, Guo W. Correlations between horizontal jump and sprint acceleration and maximal speed performance: a systematic review and meta-analysis. PeerJ 2023; 11:e14650. [PMID: 36748088 PMCID: PMC9899053 DOI: 10.7717/peerj.14650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 12/06/2022] [Indexed: 02/04/2023] Open
Abstract
Objectives The purpose of this study is to determine the associations between horizontal jump and sprint acceleration, as well as maximal speed performance. Methods A systematic literature search was performed using PubMed, MEDLINE (EBSCOhost), and Web of Science. The studies that were included in this review must meet the following criteria: (1) well-trained individuals over the age of 18 years old; (2) Pearson's correlation coefficients between sprint time and horizontal jump distance were provided; (3) the sprint distance was limited to 0-100 m. The quality of the studies was assessed using a modified version of the Downs and Black Quality Index test. A random-effects model was used to determine the effect sizes, and heterogeneity between studies was examined using the Q statistic and I2. Results From the identified 2,815 studies, 27 studies were included in this study (two from reference lists). The sprint time of the sprint acceleration phase was moderately and negatively correlated with the standing long jump (r = - 0.45, z = 7.48, p < 0.001), single leg standing long jump (r = - 0.48, z = 3.49, p < 0.001) and horizontal drop jump distance (r = - 0.48, z = 3.49, p < 0.001), and was largely and negatively correlated with multiple jump distance (r = - 0.69, z = 6.02, p < 0.001). Out of five studies assessed the standing triple jump, three studies reported significant positive association with the sprint acceleration performance. The sprint time of maximal speed phase was very largely and negatively associated with standing long jump distance (r = - 0.73, z = 4.44, p < 0.001) and multiple jump distance (r = - 0.76, z = 6.86, p < 0.001). Conclusions This review indicates the moderate to very large associations between horizontal jump and sprint acceleration and maximal speed performance, and the highest magnitude of associations between them is found in the multiple jump. Moreover, compared to the sprint acceleration performance, there are greater associations between maximal speed performance and standing long jump and multiple jump distance.
Collapse
Affiliation(s)
- Junlei Lin
- School of Strength and Conditioning Training, Beijing Sport University, Beijing, China
| | - Jie Shen
- School of Strength and Conditioning Training, Beijing Sport University, Beijing, China
| | - Junjie Zhang
- Capital University of Physical Education and Sports, Beijing, China
| | - Aiguo Zhou
- School of Strength and Conditioning Training, Beijing Sport University, Beijing, China
| | - Wenxia Guo
- Beijing University of Chemical Technology, Beijing, China
| |
Collapse
|
6
|
Effects of Eight-Week Circuit Training with Core Exercises on Performance in Adult Male Soccer Players. Eur J Investig Health Psychol Educ 2022; 12:1244-1256. [PMID: 36135224 PMCID: PMC9497503 DOI: 10.3390/ejihpe12090086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/02/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Core exercises have been widely promoted in the last 25 years. However, the scientific debate about its efficacy for improving individual and team sports performance is still open. Thus, the present study aims to investigate the effects of circuit training with a core exercise program on physical performance in competitive amateur soccer players. The training was conducted during the off-season period, two times per week for 8 weeks. Pre- and post-evaluations were conducted using the following tests: Y-Balance Test (YB), standing long jump (SLJ), medicine ball chest press (MBC), curl-up (CU), and Illinois Agility Test (IAT). A total of 19 adults were divided into an experimental group (EG, n = 11, age 22 years, weight 71.2 ± 4.8 kg, height 174 ± 5.8 cm) and a control group (CG, n = 8, age 22 years, weight 73.2 ± 4.1 Kg, height 176 ± 6.3 cm). The EG showed significant improvements in lower and upper body strength, core endurance and balance, whereas the CG did not report significant changes in the pre- and post-test comparison. Despite study limitations, our positive results show that circuit training with core exercises appears to be a good strategy for performance improvement in adult soccer players.
Collapse
|
7
|
Brumitt J, Patterson C, Dudley R, Sorenson E, Cuddeford T, Cooke H, Froemming L. Correlations Between Preseason Functional Test Scores and Game Performance in Female Collegiate Volleyball Players. Int J Sports Phys Ther 2022; 17:896-906. [PMID: 35949390 PMCID: PMC9340847 DOI: 10.26603/001c.36805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 04/24/2022] [Indexed: 11/18/2022] Open
Abstract
Background Functional tests (FT) are assessment tools that attempt to evaluate balance, flexibility, strength, power, speed, or agility through performance of gross motor skills. FT are frequently administered by coaches or sports medicine professionals to evaluate athletic ability, to predict performance, to identify athletes at risk for injury, or to evaluate an athlete's ability to return to sport after injury. Functional tests which can provide accurate or predictive information regarding athletic ability would be advantageous to coaching staffs or medical professionals. Purpose The primary purpose of this study was to identify correlations between preseason FT scores and in-season game statistics in a cohort of female collegiate level volleyball (VB) players. A secondary purpose was to present FT descriptive data for this cohort based on level of competition, player position, and starter status. Study Design prospective cohort; correlational. Methods One hundred and thirty-one female collegiate VB players representing three levels of competition completed four FT [standing long jump (SLJ), single-leg hop (SLH), lower extremity functional test (LEFT), and the Y-Balance Test - Lower Quarter (YBT-LQ)] at the start of the preseason. Player statistics were collected from team records at the completion of the season. Results Starters performed significantly better on all tests. There were moderate negative correlations between LEFT scores and game statistics for liberos, defensive specialists, and outside hitters. There were moderate positive correlations between YBT-LQ composite scores and game statistics for liberos, defensive specialists, hitters, and middle blockers. There were also low to moderate level positive correlations between SLJ and SLH scores and game performance for outside hitters. There were low to moderate level positive correlations between SLH scores and game performance for middle blockers and opposite side hitters. Conclusions The results of this study indicate that there are low to moderate correlations between some preseason functional test scores and some game statistics. The SLJ, SLH, LEFT, and YBT-LQ tests may help coaches with talent identification and/or may influence training strategies. Level of Evidence 3.
Collapse
|
8
|
Silva AF, Nobari H, Badicu G, Ceylan HI, Lima R, Lagoa MJ, Luz C, Clemente FM. Reliability levels of motor competence in youth athletes. BMC Pediatr 2022; 22:430. [PMID: 35854239 PMCID: PMC9297583 DOI: 10.1186/s12887-022-03483-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 07/11/2022] [Indexed: 11/10/2022] Open
Abstract
This study aimed to analyze the reliability of the tests included in the motor competence assessment (MCA) battery and compare the effects of the number of trials per test. Thirty female volleyball players (14.6 ± 1.3 years of age) were tested. The participants performed two or three trials of each test. Intra-class correlation (ICC) was calculated, and a paired sample t-test analyzed the variations between trials (1st vs. 2nd vs. 3rd). Results revealed a significant difference between the first and the second trials for jumping sideways [t(29) = -4.108, p < 0.01], standing long jump [t(29) = -3.643, p < 0.01], and shuttle run [t(29) = -3.139, p < 0.01]. No significant result was registered in the shifting platforms, ball throwing and kicking between the first and second trials. Hence, any difference was recorded between the second and third trial. High ICC values were registered in lateral jumps, among the three repetitions of ball kicking and ball throwing, and between the last two repetitions of shuttle run. Almost perfect values were recorded for the shifting platforms and standing long jump. Nevertheless, there seems to be a learning effect between the first and the second repetition-no differences were registered only considering the two manipulative tests. In conclusion, except for jumping sideways, the MCA tests are reliable and only need to be performed two times instead of three.
Collapse
Affiliation(s)
- Ana Filipa Silva
- The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801, Vila Real, Portugal.,Sport Performance, Recreation, Innovation and Technology (SPRINT), Rua Escola Industrial E Comercial de Nun'Alvares, 4900-347, Viana do Castelo, Portugal
| | - Hadi Nobari
- Faculty of Sport Science, University of Extremadura, Cáceres, Spain. .,Department of Motor Performance, Faculty of Physical Education and Mountain Sports, Transilvania University of Braşov, 500068, Braşov, Romania. .,Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, 5619911367, Iran.
| | - Georgian Badicu
- Department of Physical Education and Special Motricity, Transilvania University of Brasov, 500086, Brasov, Romania
| | - Halil Ibrahim Ceylan
- Physical Education and Sports Teaching Department, Kazim Karabekir Faculty of Education, Ataturk University, Erzurum, Turkey
| | - Ricardo Lima
- The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801, Vila Real, Portugal.,Sport Performance, Recreation, Innovation and Technology (SPRINT), Rua Escola Industrial E Comercial de Nun'Alvares, 4900-347, Viana do Castelo, Portugal
| | - Maria João Lagoa
- The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801, Vila Real, Portugal.,University of Maia, UMAIA, Maia, Portugal
| | - Carlos Luz
- Escola Superior de Educação de Lisboa, Instituto Politécnico de Lisboa, Lisbon, Portugal.,Centro Interdisciplinar de Estudos Educacionais, Lisbon, Portugal
| | - Filipe Manuel Clemente
- Sport Performance, Recreation, Innovation and Technology (SPRINT), Rua Escola Industrial E Comercial de Nun'Alvares, 4900-347, Viana do Castelo, Portugal.,Delegação da Covilhã, Instituto de Telecomunicações, 1049-001, Lisbon, Portugal
| |
Collapse
|
9
|
Mann JB, Bird M, Signorile JF, Brechue WF, Mayhew JL. Prediction of Anaerobic Power From Standing Long Jump in NCAA Division IA Football Players. J Strength Cond Res 2021; 35:1542-1546. [PMID: 33927119 DOI: 10.1519/jsc.0000000000004043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Mann, JB, Bird, M, Signorile, JF, Brechue, WF, and Mayhew, JL. Prediction of anaerobic power from standing long jump in NCAA Division IA football players. J Strength Cond Res 35(6): 1542-1546, 2021-Despite the popularity of the standing long jump (SLJ), limited research has explored the estimation of power developed during this test. The purpose of this study was to determine SLJ power from jump distance and selected anthropometric measures in NCAA Division IA football players. Height (Ht), body mass (Wt), thigh length, and lower leg length (LL) were measured in 58 players, allowing calculation of leg ratios of thigh length·Ht-1, LL·Ht-1, and TL·SL-1. Players performed 2-3 maximal familiarization trials of SLJ followed by 2 maximal jumps from a 3-dimension force plate sampling at 1,000 Hz. Standing long jump distance (intraclass correlation coefficient [ICC] = 0.944) and power (ICC = 0.926) calculated from resultant force and velocity vectors were highly reliable. Standing Ht (r = 0.40), Wt (r = 0.36), lower leg length (r = 0.43), total leg length (thigh + LLs) (r = 0.38), and best SLJ (r = 0.52) were significantly related (p < 0.05) to peak power, but none accounted for more than 27% of the common variance. Step-wise multiple regression identified SLJ and body mass as the only significant variables necessary to predict peak power (Power [W] = 32.49·SLJ [cm] + 39.69·Wt [kg] - 7,608, R = 0.86, SEE = 488 W, CV% = 9.3%). Standing long jump contributed 56.8% to the known variance, whereas Wt contributed 43.2%. Thus, a combination of SLJ and Wt can be used to effectively estimate explosive power in Division IA college football players.
Collapse
Affiliation(s)
- J Bryan Mann
- Department of Kinesiology and Sport Sciences, University of Miami, Coral Gables, Florida
| | - Michael Bird
- Department of Health and Exercise Sciences, Truman State University, Kirksville, Missouri; and
| | - Joseph F Signorile
- Department of Kinesiology and Sport Sciences, University of Miami, Coral Gables, Florida
| | - William F Brechue
- Physiology Department, A. T. Still University of Health Sciences, Kirksville, Missouri
| | - Jerry L Mayhew
- Department of Health and Exercise Sciences, Truman State University, Kirksville, Missouri; and
| |
Collapse
|
10
|
Field-Based Simplified Approach of Evaluating Knee Extensor Muscle Strength and Size in University Freshmen Women. J Sport Rehabil 2019; 28:398-401. [DOI: 10.1123/jsr.2017-0181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
11
|
Yoshimoto T, Takai Y, Tsuchie H, Chiba Y, Motoshio R, Kanehisa H. Ten-second maximal pedaling power as a representative measure for assessing sprint performance. J Sports Med Phys Fitness 2019; 59:1845-1851. [PMID: 30990263 DOI: 10.23736/s0022-4707.19.09504-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND There is no evidences concerning the relative contribution of physiological parameters to maximal sprinting velocity and acceleration ability. The aim of this study is to elucidate the associations between physiological variables and sprint performance. METHODS Twenty-six male sprinters performed a 60-m sprint twice. Maximal sprint velocity (Vmax) and running distance after 4 s from the start (D4) were measured as indices of sprint performance during the sprint using a laser distance measurement device. Body composition, jump performance in the countermovement jump, the rebound jump, the standing long jump and the standing 5-step jump, and 10-s maximal anaerobic pedaling power were measured as physiological variables. RESULTS All measured variables were significantly related to Vmax (r=0.49-0.71, P<0.05) and D4 (r=0.39-0.72, P<0.05), expect for anthropometric variables. Multiple regression analysis indicated that the 10-s maximal anaerobic pedaling power relative to body mass was the only variable that significantly explained Vmax and D4. CONCLUSIONS The 10-s maximal anaerobic pedaling power relative to body mass can be a representative measure for assessing the sprint performance of male sprinters.
Collapse
Affiliation(s)
| | - Yohei Takai
- National Institute of Fitness and Sports in Kanoya, Kagoshima, Japan
| | | | | | - Ryo Motoshio
- Fujitsu Human Resource Professionals, Ltd., Kawasaki, Japan
| | - Hiroaki Kanehisa
- National Institute of Fitness and Sports in Kanoya, Kagoshima, Japan
| |
Collapse
|
12
|
A Pilot RCT Investigating the Effects of Targeted Compression on Athletes With Pelvic/Groin Pain. J Sport Rehabil 2018; 28:133-143. [PMID: 29091519 DOI: 10.1123/jsr.2017-0097] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
CONTEXT Athletic pelvic/groin pain is a common yet often challenging problem to both diagnose and manage. A new tool has been developed based on the clinical effects of applied force on the pelvis. Early findings indicate that this customized compression orthosis may have a positive effect on pelvic/groin pain and performance measures. OBJECTIVES To inform the design and test the practicality of procedures for a future definitively powered randomized controlled trial and to provide an estimate of the effect size of this orthosis on selected clinical and performance measures. DESIGN Pilot randomized controlled trial with participants randomly allocated to an intervention or waiting-list control group. SETTING The training location of each athlete. PARTICIPANTS 24 athletes with subacute and chronic pelvic conditions were proposed to be recruited. INTERVENTION A customized compression orthosis, delivering targeted compression to the pelvic girdle. OUTCOME MEASURES Measures were the active straight leg raise (ASLR) test, squeeze test, broad jump, and the multiple single-leg hop-stabilization test. RESULTS A total of 16 athletes completed the study. The invention group demonstrated moderate to large estimated effect sizes on the squeeze test and active straight leg raise tests (d = 0.6-1.1) while wearing the orthosis. Small effect sizes (d = 0.2) were seen on jump distance and the dominant leg balance score. Compared with the control group, the intervention group also showed moderate to large estimated effect sizes on the active straight leg raise measures (d = 0.5-0.9) when wearing sports shorts. CONCLUSIONS The protocol was feasible. Effect sizes and recruitment/attrition rates suggest that the intervention holds promise and that a future definitively powered randomized controlled trial appears feasible and is indicated.
Collapse
|
13
|
Wen N, Dalbo VJ, Burgos B, Pyne DB, Scanlan AT. Power Testing in Basketball: Current Practice and Future Recommendations. J Strength Cond Res 2018; 32:2677-2691. [DOI: 10.1519/jsc.0000000000002459] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
14
|
Greenlee TA, Greene DR, Ward NJ, Reeser GE, Allen CM, Baumgartner NW, Cohen NJ, Kramer AF, Hillman CH, Barbey AK. Effectiveness of a 16-Week High-Intensity Cardioresistance Training Program in Adults. J Strength Cond Res 2018; 31:2528-2541. [PMID: 28820847 PMCID: PMC5566168 DOI: 10.1519/jsc.0000000000001976] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Greenlee, TA, Greene, DR, Ward, NJ, Reeser, GE, Allen, CM, Baumgartner, NW, Cohen, NJ, Kramer, AF, Hillman, CH, and Barbey, AK. Effectiveness of a 16-week high-intensity cardioresistance training program in adults. J Strength Cond Res 31(9): 2528–2541, 2017—The purpose of this study was to determine the efficacy of a novel, 16-week high-intensity cardioresistance training (HICRT) program on measures of aerobic fitness, agility, aerobic power, muscular endurance, lower-body explosive power, and self-reported activity level. The intervention group (N = 129; 63 f, 24.65 ± 5.55 years) had a baseline V̇o2max of 39.83 ± 9.13. These individuals participated in 26, 70-minute exercise sessions, and 4 fitness testing sessions. Participants were matched with a nonexercise control group, paired by sex, age, and baseline V̇o2max. Matched controls (N = 129, 63 f, 24.26 ± 5.59 years) had a baseline V̇o2max of 39.86 ± 8.59 and completed preintervention and postintervention V̇o2max testing only. The results demonstrate that participants in the fitness intervention group significantly increased their V̇o2max (2.72 ± 0.31, Mdiff ± SE; p < 0.001) and reported being more physically active (0.42 ± 0.11, Mdiff ± SE; p < 0.001) after the intervention. The matched control group showed no significant pre–post intervention changes. Participants in the fitness intervention showed a significant improvement in 3 of 5 components of the fitness field tests. Specifically, significant improvements were observed for the 1-minute rower (5.32 ± 0.505, Mdiff ± SE; p < 0.001), 1-minute push-up (8.168 ± 0.709, Mdiff ± SE; p < 0.001), and 1.5-mile run tests (1.79 ± 0.169, Mdiff ± SE; p < 0.001). No significant improvements were observed for the shuttle run (p = 0.173) or standing long jump (p = 0.137). These findings demonstrate the efficacy of a novel, HICRT intervention across multiple dimensions of fitness for young- and middle-aged adults. High-intensity cardioresistance training affords flexibility for tailoring to meet desired health and fitness outcomes and makes perceivably daunting high-intensity functional training and multimodal sports training more accessible to general, traditionally nonathletic, populations.
Collapse
Affiliation(s)
- Tina A Greenlee
- 1Beckman Institute for Advanced Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois; 2Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois; 3Department of Psychology, Tufts University, Medford, Massachusetts; 4Department of Psychology, University of Illinois at Urbana-Champaign, Urbana, Illinois; 5Department of Psychology, Northeastern University, Boston, Massachusetts; 6Department of Mechanical and Industrial Engineering, Northeastern University, Boston, Massachusetts; and 7Department of Health Sciences, Northeastern University, Boston, Massachusetts
| | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Tracking of muscular strength and power from youth to young adulthood: Longitudinal findings from the Childhood Determinants of Adult Health Study. J Sci Med Sport 2017; 20:927-931. [PMID: 28416155 DOI: 10.1016/j.jsams.2017.03.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 03/15/2017] [Accepted: 03/23/2017] [Indexed: 01/23/2023]
Abstract
OBJECTIVES Low muscular fitness levels have previously been reported as an independent risk factor for chronic disease outcomes. Muscular fitness tracking, the ability to maintain levels measured at one point in time to another point in time, was assessed from youth to adulthood to provide insight into whether early identification of low muscular fitness in youth is possible. DESIGN Prospective longitudinal study. METHODS Study including 623 participants who had muscular fitness measures in 1985 (aged 9, 12 or 15 years) and again 20 years later in young adulthood. Measures of muscular fitness were strength (right and left grip, leg, shoulder extension and flexion measured by dynamometer, and a combined strength score) and power (standing long jump distance). RESULTS Strength and power were relatively stable between youth and adulthood; the strongest tracking correlations were observed for the combined strength score (r=0.47, p≤0.001), right grip strength (r=0.43, p≤0.001) and standing long jump (r=0.43, p≤0.001). Youth in the lowest third of muscular fitness had an increased risk of remaining in the lowest third of muscular fitness in adulthood (strength: relative risk (RR)=4.70, 95% confidence interval (CI) (3.19, 6.92); power: RR=4.06 (2.79, 5.90)). CONCLUSIONS Youth with low muscular fitness are at increased risk of maintaining a low muscular fitness level into adulthood. These findings warrant investigation into the long term effects of early interventions that focus on improving low muscular fitness levels in youth which could potentially improve adult muscular fitness and reduce future chronic disease outcomes.
Collapse
|
16
|
Krishnan A, Sharma D, Bhatt M, Dixit A, Pradeep P. Comparison between Standing Broad Jump test and Wingate test for assessing lower limb anaerobic power in elite sportsmen. Med J Armed Forces India 2016; 73:140-145. [PMID: 28924314 DOI: 10.1016/j.mjafi.2016.11.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 11/11/2016] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Lower limb explosive power is an important motor quality for sporting performance and indicates use of anaerobic energy systems like stored ATP and Creatine phosphate system. Weightlifting, Fencing and Wrestling use it for monitoring and identification of potential sportsmen. The Wingate test and Standing Broad Jump (SBJ) test are reliable and accurate tests for its assessment. This study conducted on elite Indian sportsmen tries to analyse feasibility of use of the SBJ test in sports and military medicine when Wingate test is impractical. METHODS 95 elite sportsmen (51 Fencers, 17 Weight lifters and 27 Wrestlers) of a sports institute were administered Wingate cycle ergometer test and SBJ under standardised conditions. The results were analysed for mass and inter-discipline correlation. RESULTS Analysis using Pearson's correlation showed significant positive correlation between Peak power (r = 0.446, p < 0.0001) and SBJ (distance) in all sportsmen. Inter-sport correlation showed positive correlation between SBJ and peak power (r = 0.335, p < 0.016) in Fencers and between SBJ, peak power (r = 0.686, p < 0.002) in Weightlifters. Bland-Altman plot analysis showed that about 94% pairs of peak power and SBJ were within limits of agreement for each discipline as well as among all sportsmen. CONCLUSION The test results show definite correlation and SBJ test can be used as a field test in performance monitoring, talent identification, military recruit screening and injury prevention.
Collapse
Affiliation(s)
- Anup Krishnan
- Medical Officer (Sports Medicine), Army Sports Institute, Pune 411036, India
| | - Deep Sharma
- Classified Specialist (Physiology), Command Hospital (Southern Command), Pune 411040, India
| | - Madhu Bhatt
- Senior Adviser (Physiology), Military Hospital Jhansi, UP, India
| | - Apoorv Dixit
- Col (Adm), Armed Forces Medical College, Pune 411040, India
| | - P Pradeep
- Resident, Department of Sports Medicine, Armed Forces Medical College, Pune 411040, India
| |
Collapse
|
17
|
Ducharme SW, Wu WF, Lim K, Porter JM, Geraldo F. Standing Long Jump Performance With an External Focus of Attention Is Improved as a Result of a More Effective Projection Angle. J Strength Cond Res 2016; 30:276-81. [DOI: 10.1519/jsc.0000000000001050] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
18
|
Chelly MS, Hermassi S, Shephard RJ. Relationships between power and strength of the upper and lower limb muscles and throwing velocity in male handball players. J Strength Cond Res 2010; 24:1480-7. [PMID: 20508448 DOI: 10.1519/jsc.0b013e3181d32fbf] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study aimed to investigate relationships between peak power (PP) as measured by upper limb (PPUL) and lower limb (PPLL) force-velocity tests, maximal upper limb force assessed by 1 repetition maximum bench press (1RMBP), and pullover (1RMPO) exercises, estimates of local muscle volume and 3-step running handball throwing velocity (T3-Steps). Fourteen male handball players volunteered for the investigation (age: 19.6+/-0.6 years; body mass: 86.7+/-12.9 kg; and height 1.87+/-0.07 m). Lower and upper limb force-velocity tests were performed on appropriately modified forms of a Monark cycle ergometer, with measurement of PPUL and PPLL, and the corresponding respective maximal forces (F0UL and F0LL) and velocities (V0UL and V0LL). T3-Steps was assessed using a radar Stalker ATS system. Muscle volumes of the upper and lower limbs were estimated with a standard anthropometric kit. T3-Steps was closely related to absolute PPUL and to F0UL (r=0.69, p<0.01 for both relationships). T3-Steps was also moderately related to 1RMBP and 1RMPO (r=0.56, p<0.05; r=0.55, p<0.05 respectively), and to PPLL and F0LL (r=0.56, p<0.05; r=0.62, p<0.05, respectively). When PPLL was expressed per unit of limb muscle volume, the relationship with T3-Steps disappeared. This suggests the importance of muscle volume to performance in throwing events. Force-velocity data may prove useful in regulating conditioning and rehabilitation programs for handball players. Our results also highlight the contribution of both the lower and the upper limbs to handball throwing velocity, suggesting the need for coaches to include upper and lower limb strength and power programs when improving the throwing velocity of handball players.
Collapse
Affiliation(s)
- Mohamed Souhaiel Chelly
- Research Unit Evaluation and Analysis of Factors Influencing Sport Performance, Higher Institute of Sport and Physical Education of Ksar Said, Tunis, Tunisia.
| | | | | |
Collapse
|
19
|
Lizis P, Posadzki P, Smith T. Relationship between explosive muscle strength and medial longitudinal arch of the foot. Foot Ankle Int 2010; 31:815-22. [PMID: 20880486 DOI: 10.3113/fai.2010.0815] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND There has been a suggested link between muscle strength and arch type of the foot. However, a distinct cause and effect dependence has yet to be established. The purpose of this study was to compare the outcomes from selected explosive strength tests with different arch heights. MATERIAL AND METHODS The medial longitudinal arch (MLA) was measured using a Clarke's angle method. Five hundred seventy-four subjects (n = 574) participated in this study and were divided into three arch height groups and three muscle strength groups, respectively. To evaluate the association between longitudinal arch of the foot with the explosive power of lower limb muscles, Chi-square (χ²) test was used. RESULTS Arch heights were not significantly related to explosive muscle strength. CONCLUSIONS Arch measurement was ineffective in accounting for the observed variability in the explosive strength among young adults. CLINICAL RELEVANCE This data may be useful in evaluating patients with painful flat feet and any strength deficits they may have.
Collapse
Affiliation(s)
- Paweł Lizis
- Honorary Research Associate, University of East Anglia, School of Medicine, Health Policy and Practice, Norwich, Norfolk, UK.
| | | | | |
Collapse
|