espanolObjetivo: Determinar, mediante la utilizacion de la tecnologia de los sensores inerciales,... more espanolObjetivo: Determinar, mediante la utilizacion de la tecnologia de los sensores inerciales, el patron biomecanico del salto en jugadoras elite de balonmano femenino con o sin reconstruccion previa del LCA. Material y metodo: 21 jugadoras (6 con reconstruccion previa del LCA, 6 ± 3 anos de media tras la cirugia reparadora) fueron evaluadas durante la ejecucion de un test de drop vertical bilateral. Se analizaron los picos de aceleracion (m/s-2) en los tres ejes del espacio, asi como la duracion de las fases del salto. Se recurrio a las pruebas de T- student para la comparacion de medias entre grupos. Resultados: Las jugadoras con antecedente previo de lesion de LCA mostraron mayores (P Conclusion: Las jugadoras con antecedente previo de LCA muestran patrones biomecanicos del salto alterados con respecto a sus controles varios anos despues de haber sufrido el evento lesivo original. EnglishObjective: To examine unilateral and bilateral biomechanical and jumping performance differences between elite female handball athletes with or without previous ACL reconstruction through the use of a single Inertial Sensor Unit (ISU) device. Material and method: Cross-sectional descriptive study with one factor: previous ACL injury. Twenty-one female (6 ACL-reconstructed and 15 uninjured control players) elite handball players who were evaluated 6 ± 3 years after surgical ACL reconstruction were recruited. Bilateral and unilateral vertical jumps were performed. Two-tailed t-tests and a one way ANOVA were performed for mean comparisons. The P value cut-off for significance was set at Results: The ACL-reconstructed female athletes showed significantly greater (p Conclusion: Previously ACL-reconstructed elite female handball athletes demonstrated altered supported accelerations and jump phase durations, including jumping performance values in both bilateral and unilateral jumping maneuvers, several years after ACL reconstruction
(Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increase... more (Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increases from (a) to (c). The patient imposes different stretching intensities to the shoulder posterior capsule depending on his/her tolerance. (TIF 563Â kb)
(Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increase... more (Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increases from (a) to (c). The patient imposes different stretching intensities to the shoulder posterior capsule depending on his/her tolerance. (TIF 563Â kb)
(Blue). Example of scapulothoracic instability exercises. The complexity of the exercises increas... more (Blue). Example of scapulothoracic instability exercises. The complexity of the exercises increases from a to b. The patient must control scapular retraction (a) and co-contraction from scapular retractor and protractors (b). (TIF 482Â kb)
Handball sport is a good example of a highly strenuous body-contact team sport with a strong emph... more Handball sport is a good example of a highly strenuous body-contact team sport with a strong emphasis on running speed, jumping, abrupt changes in direction and throwing in which enormous forces are developed around the knee joint. Due to handball’s intrinsic need for abrupt changes in direction and unplanned action management, as well as the high game intensity, anterior cruciate ligament (ACL) rupture is one of the most frequent devastating injuries among handball players. Moreover, an incomplete or insufficient rehabilitation program following an ACL injury may increase the risk of both re-injury and injury of the unaffected contra lateral knee. Thus, the identification of functional, biomechanical and neuromuscular deficits before discharging these patients from rehabilitation appears to be crucial for ACL re-injury prevention in this population. However, the scientific literature has still several concerns that despite previous conscientious scientific efforts made, remains spa...
International Journal of Environmental Research and Public Health
The main objectives of the present study were to describe the injury incidence and to analyze the... more The main objectives of the present study were to describe the injury incidence and to analyze the anthropometric and physical characteristics of players from three high-level women’s football teams. The present study involved 54 female football players (21.9 ± 4.9 years old) from three different teams competing in the Spanish Reto Iberdrola-Segunda División PRO league. A battery of tests was carried out to determine the anthropometric and physical performance characteristics of the players along with an injury incidence record during a full competitive season. The obtained results showed that there was a high incidence of injury, as 38% of the players suffered some type of injury during the season (range 1–5; 1.75 ± 1.02 injuries per player). Injuries occurred in both matches and during training at a similar percentage (48.6 vs. 51.4%), and the majority of the registered episodes were graded as moderate or severe injury types (60%). Players suffering from an injury accumulated a tot...
International Journal of Sports Physiology and Performance
Purpose: To develop gender-specific operational equations for prediction of cardiorespiratory fit... more Purpose: To develop gender-specific operational equations for prediction of cardiorespiratory fitness in female footballers. Method: Forty-eight semiprofessional female footballers performed an intermittent progressive maximal running test for determination of fixed blood lactate concentration (FBLC) thresholds. Relationships between FBLC thresholds and the physiological responses to submaximal running were examined. Developed equations (n = 48) were compared with equations previously obtained in another investigation performed in males (n = 100). Results: Submaximal velocity associated with 90% maximal heart rate was related to FBLC thresholds (r = .76 to .79; P
The purpose of the first study was to validate two newly proposed core stability tests; Prone Pla... more The purpose of the first study was to validate two newly proposed core stability tests; Prone Plank test (PPT) and Closed Kinetic Chain test (CCT), for evaluating the strength of the body core. Subsequently, these tests were employed in a longitudinal prospective study implementing a core stability training program with a professional Spanish football team. For the validation study, 22 physically active men (Tegner Scale 6–7) performed three trials of the PPT and CCT tests in two different testing sessions separated by one week. In the longitudinal study, 13 male professional football players were equally evaluated (PPT and CCT) before and after the competitive session in which they completed a core training program. Intra-/intersession, and intertester, reliability was analyzed. PPT and CCT demonstrated excellent to good test–retest reliability and acceptable error measurement (ICCs for intratester and intrasession reliability ranged from 0.77 to 0.94 for the PPT, and 0.8–0.9 for t...
Background Handball is a strenuous body-contact team sport that places high loads on the knee joi... more Background Handball is a strenuous body-contact team sport that places high loads on the knee joint. Anterior cruciate ligament (ACL) tear is one of the most devastating injuries that any handball player can suffer, and female athletes are at particular risk due to their intrinsic anatomical, hormonal, neuromuscular and biomechanical characteristics. The purpose of this study was to analyze the horizontal jumping biomechanics of female elite handball players with or without previous ACL reconstruction. Methods Twenty-one female participants (6 with previous ACL reconstruction and 15 uninjured controls) were recruited. Two horizontal hopping tasks were evaluated using inertial sensor unit (ISU)-based technology to assess jumping biomechanics through a direct mechanics-based approach. Results The athletes with previous ACL reconstruction demonstrated a significant (P
International Journal of Sports Physiology and Performance
Purpose: To compare the concentric and eccentric training effects on fatigue induced by eccentric... more Purpose: To compare the concentric and eccentric training effects on fatigue induced by eccentric and concentric protocols. Methods: A total of 22 men and women (22 [3.6] y) were assigned to concentric (GCON, n = 11) or eccentric training (GECC, n = 11). The concentric (CON) and eccentric (ECC) protocols were composed of 4 sets of 20 knee-extension/flexion repetitions. Force losses were analyzed by comparing 10 repetitions’ mean torques during the protocols and by verifying the maximal voluntary contraction and rate of torque development before and after the protocols. Muscle damage was assessed using echo intensity of the vastus lateralis 48 h after the protocols. Training consisted of 6 wk of isokinetic exercise at 60°/s (concentric or eccentric) twice weekly. Results: Before training, both protocols resulted in dynamic and isometric force losses in GCON and GECC (P
Alternative therapies in health and medicine, Jan 14, 2017
Context • Alternatives to medication for immediate pain relief are needed because long-term use o... more Context • Alternatives to medication for immediate pain relief are needed because long-term use of pain medication has been associated with adverse effects. High-velocity, low-amplitude (HVLA) manipulation techniques (MTs) and craniocervical flexion (CCF) exercises have been frequently used in the management of chronic cervical pain. Objective • The study intended to compare the immediate effects on pain of a treatment using HVLA manipulation versus one using a CCF exercise protocol. Design • The research team designed a single-blinded, randomized clinical trial. Setting • The study was conducted at osteopathic clinics. Participants • Participants were 25 volunteer patients with chronic neck pain. Intervention • Participants were randomly enrolled in one of 2 groups: the HVLA manipulation group (MT group), n = 12, or the CCF exercise protocol group (CCF group), n = 13. Participants in the CCF group performed the exercise for 10 repetitions of a 10-s duration, with a 10-s rest interv...
Journal of back and musculoskeletal rehabilitation, Jan 7, 2017
While both manipulative treatment and physical exercises are used to treat cervical pain, it rema... more While both manipulative treatment and physical exercises are used to treat cervical pain, it remains unclear which is most effective. To compare the short-term effects of high-velocity, low-amplitude manipulation techniques (MT) with those of home-exercise (HE) with stretching and low-intensity (10% of max) isometric contractions on pain and function. Single-blind randomized clinical trial was performed. A total of 27 asymptomatic subjects were randomly assigned to 2 groups: manipulation techniques (MT, n= 13) and home exercise (HE, n= 14). The visual analogue scale (VAS); neck disability index (NDI); pressure pain thresholds; cervical spine range of motion and electromyography during the cranio-cervical flexion test was measured before and one week after the intervention. After the intervention, both groups showed improved (P< 0.05) NDI and VAS scores and flexion in both rotation ranges compared with the pre-intervention values. For the NDI, pain intensity, and neck flexion, the...
espanolObjetivo: Determinar, mediante la utilizacion de la tecnologia de los sensores inerciales,... more espanolObjetivo: Determinar, mediante la utilizacion de la tecnologia de los sensores inerciales, el patron biomecanico del salto en jugadoras elite de balonmano femenino con o sin reconstruccion previa del LCA. Material y metodo: 21 jugadoras (6 con reconstruccion previa del LCA, 6 ± 3 anos de media tras la cirugia reparadora) fueron evaluadas durante la ejecucion de un test de drop vertical bilateral. Se analizaron los picos de aceleracion (m/s-2) en los tres ejes del espacio, asi como la duracion de las fases del salto. Se recurrio a las pruebas de T- student para la comparacion de medias entre grupos. Resultados: Las jugadoras con antecedente previo de lesion de LCA mostraron mayores (P Conclusion: Las jugadoras con antecedente previo de LCA muestran patrones biomecanicos del salto alterados con respecto a sus controles varios anos despues de haber sufrido el evento lesivo original. EnglishObjective: To examine unilateral and bilateral biomechanical and jumping performance differences between elite female handball athletes with or without previous ACL reconstruction through the use of a single Inertial Sensor Unit (ISU) device. Material and method: Cross-sectional descriptive study with one factor: previous ACL injury. Twenty-one female (6 ACL-reconstructed and 15 uninjured control players) elite handball players who were evaluated 6 ± 3 years after surgical ACL reconstruction were recruited. Bilateral and unilateral vertical jumps were performed. Two-tailed t-tests and a one way ANOVA were performed for mean comparisons. The P value cut-off for significance was set at Results: The ACL-reconstructed female athletes showed significantly greater (p Conclusion: Previously ACL-reconstructed elite female handball athletes demonstrated altered supported accelerations and jump phase durations, including jumping performance values in both bilateral and unilateral jumping maneuvers, several years after ACL reconstruction
(Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increase... more (Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increases from (a) to (c). The patient imposes different stretching intensities to the shoulder posterior capsule depending on his/her tolerance. (TIF 563Â kb)
(Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increase... more (Pink). Examples of internal rotation deficit exercises. The complexity of the exercises increases from (a) to (c). The patient imposes different stretching intensities to the shoulder posterior capsule depending on his/her tolerance. (TIF 563Â kb)
(Blue). Example of scapulothoracic instability exercises. The complexity of the exercises increas... more (Blue). Example of scapulothoracic instability exercises. The complexity of the exercises increases from a to b. The patient must control scapular retraction (a) and co-contraction from scapular retractor and protractors (b). (TIF 482Â kb)
Handball sport is a good example of a highly strenuous body-contact team sport with a strong emph... more Handball sport is a good example of a highly strenuous body-contact team sport with a strong emphasis on running speed, jumping, abrupt changes in direction and throwing in which enormous forces are developed around the knee joint. Due to handball’s intrinsic need for abrupt changes in direction and unplanned action management, as well as the high game intensity, anterior cruciate ligament (ACL) rupture is one of the most frequent devastating injuries among handball players. Moreover, an incomplete or insufficient rehabilitation program following an ACL injury may increase the risk of both re-injury and injury of the unaffected contra lateral knee. Thus, the identification of functional, biomechanical and neuromuscular deficits before discharging these patients from rehabilitation appears to be crucial for ACL re-injury prevention in this population. However, the scientific literature has still several concerns that despite previous conscientious scientific efforts made, remains spa...
International Journal of Environmental Research and Public Health
The main objectives of the present study were to describe the injury incidence and to analyze the... more The main objectives of the present study were to describe the injury incidence and to analyze the anthropometric and physical characteristics of players from three high-level women’s football teams. The present study involved 54 female football players (21.9 ± 4.9 years old) from three different teams competing in the Spanish Reto Iberdrola-Segunda División PRO league. A battery of tests was carried out to determine the anthropometric and physical performance characteristics of the players along with an injury incidence record during a full competitive season. The obtained results showed that there was a high incidence of injury, as 38% of the players suffered some type of injury during the season (range 1–5; 1.75 ± 1.02 injuries per player). Injuries occurred in both matches and during training at a similar percentage (48.6 vs. 51.4%), and the majority of the registered episodes were graded as moderate or severe injury types (60%). Players suffering from an injury accumulated a tot...
International Journal of Sports Physiology and Performance
Purpose: To develop gender-specific operational equations for prediction of cardiorespiratory fit... more Purpose: To develop gender-specific operational equations for prediction of cardiorespiratory fitness in female footballers. Method: Forty-eight semiprofessional female footballers performed an intermittent progressive maximal running test for determination of fixed blood lactate concentration (FBLC) thresholds. Relationships between FBLC thresholds and the physiological responses to submaximal running were examined. Developed equations (n = 48) were compared with equations previously obtained in another investigation performed in males (n = 100). Results: Submaximal velocity associated with 90% maximal heart rate was related to FBLC thresholds (r = .76 to .79; P
The purpose of the first study was to validate two newly proposed core stability tests; Prone Pla... more The purpose of the first study was to validate two newly proposed core stability tests; Prone Plank test (PPT) and Closed Kinetic Chain test (CCT), for evaluating the strength of the body core. Subsequently, these tests were employed in a longitudinal prospective study implementing a core stability training program with a professional Spanish football team. For the validation study, 22 physically active men (Tegner Scale 6–7) performed three trials of the PPT and CCT tests in two different testing sessions separated by one week. In the longitudinal study, 13 male professional football players were equally evaluated (PPT and CCT) before and after the competitive session in which they completed a core training program. Intra-/intersession, and intertester, reliability was analyzed. PPT and CCT demonstrated excellent to good test–retest reliability and acceptable error measurement (ICCs for intratester and intrasession reliability ranged from 0.77 to 0.94 for the PPT, and 0.8–0.9 for t...
Background Handball is a strenuous body-contact team sport that places high loads on the knee joi... more Background Handball is a strenuous body-contact team sport that places high loads on the knee joint. Anterior cruciate ligament (ACL) tear is one of the most devastating injuries that any handball player can suffer, and female athletes are at particular risk due to their intrinsic anatomical, hormonal, neuromuscular and biomechanical characteristics. The purpose of this study was to analyze the horizontal jumping biomechanics of female elite handball players with or without previous ACL reconstruction. Methods Twenty-one female participants (6 with previous ACL reconstruction and 15 uninjured controls) were recruited. Two horizontal hopping tasks were evaluated using inertial sensor unit (ISU)-based technology to assess jumping biomechanics through a direct mechanics-based approach. Results The athletes with previous ACL reconstruction demonstrated a significant (P
International Journal of Sports Physiology and Performance
Purpose: To compare the concentric and eccentric training effects on fatigue induced by eccentric... more Purpose: To compare the concentric and eccentric training effects on fatigue induced by eccentric and concentric protocols. Methods: A total of 22 men and women (22 [3.6] y) were assigned to concentric (GCON, n = 11) or eccentric training (GECC, n = 11). The concentric (CON) and eccentric (ECC) protocols were composed of 4 sets of 20 knee-extension/flexion repetitions. Force losses were analyzed by comparing 10 repetitions’ mean torques during the protocols and by verifying the maximal voluntary contraction and rate of torque development before and after the protocols. Muscle damage was assessed using echo intensity of the vastus lateralis 48 h after the protocols. Training consisted of 6 wk of isokinetic exercise at 60°/s (concentric or eccentric) twice weekly. Results: Before training, both protocols resulted in dynamic and isometric force losses in GCON and GECC (P
Alternative therapies in health and medicine, Jan 14, 2017
Context • Alternatives to medication for immediate pain relief are needed because long-term use o... more Context • Alternatives to medication for immediate pain relief are needed because long-term use of pain medication has been associated with adverse effects. High-velocity, low-amplitude (HVLA) manipulation techniques (MTs) and craniocervical flexion (CCF) exercises have been frequently used in the management of chronic cervical pain. Objective • The study intended to compare the immediate effects on pain of a treatment using HVLA manipulation versus one using a CCF exercise protocol. Design • The research team designed a single-blinded, randomized clinical trial. Setting • The study was conducted at osteopathic clinics. Participants • Participants were 25 volunteer patients with chronic neck pain. Intervention • Participants were randomly enrolled in one of 2 groups: the HVLA manipulation group (MT group), n = 12, or the CCF exercise protocol group (CCF group), n = 13. Participants in the CCF group performed the exercise for 10 repetitions of a 10-s duration, with a 10-s rest interv...
Journal of back and musculoskeletal rehabilitation, Jan 7, 2017
While both manipulative treatment and physical exercises are used to treat cervical pain, it rema... more While both manipulative treatment and physical exercises are used to treat cervical pain, it remains unclear which is most effective. To compare the short-term effects of high-velocity, low-amplitude manipulation techniques (MT) with those of home-exercise (HE) with stretching and low-intensity (10% of max) isometric contractions on pain and function. Single-blind randomized clinical trial was performed. A total of 27 asymptomatic subjects were randomly assigned to 2 groups: manipulation techniques (MT, n= 13) and home exercise (HE, n= 14). The visual analogue scale (VAS); neck disability index (NDI); pressure pain thresholds; cervical spine range of motion and electromyography during the cranio-cervical flexion test was measured before and one week after the intervention. After the intervention, both groups showed improved (P< 0.05) NDI and VAS scores and flexion in both rotation ranges compared with the pre-intervention values. For the NDI, pain intensity, and neck flexion, the...
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