Volitional Spine Stabilization During a Drop Vertical Jump From Different Landing Heights: Implications for Anterior Cruciate Ligament Injury

Haddas, Ram; Hooper, Troy L.; James, C. Roger; Sizer, Phillip S.

doi:10.4085/1062-6050-51.12.18

Cited by 15 publications

(9 citation statements)

References 45 publications

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“…45 The second one would be related to the proper control of the core intervention training since according to their study limitations they may have stemmed from a lack of expertise of the assistant training staff. Therefore, similar to other study on abdominal-bracing maneuver performed during landing, 46 our study provides evidence to recommend the application of a program aimed at improving strength and control in the core area, as it influences vertical jump performance and facilitate motor control of knee movement to positions that increase the risk of injury at landing in female handball players.…”

Section: Discussionsupporting

confidence: 84%

The effect of a core training program on jump performance in female handball players

Ferri-Caruana¹,

Pardo-Ibáñez²,

Cano-Garrido³

et al. 2022

Rev And Med Dep

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Objectives: To evaluate changes on bilateral and unilateral jump performance and frontal knee projection angle after an implementation of a core strength program in female handball players. Equipment and methods: This is a randomized controlled trial study. A total of 20 participants [age = 17.2 (1.9) years, height = 1.7 (0.1) m, weight = 62.8 (7) kg ] were recruited and split in: a core training group and a control group. The core training group participated in 8 weeks in-season of a core strength program (2 times/week). Pre- and post-intervention jump height, contact time and reactive strength index were collected during bilateral and unilateral drop vertical jumps. Frontal knee projection angle was measured only at unilateral drop jumps. Results: Core training group increased the bilateral jump height by 18.8% and showed a statistically significant difference in reactive strength index from pre-intervention [0.07 (0.03)] to post-intervention [0.10 (0.04)]. The core training group also improved the unilateral jump height by 20%, but only at the non-dominant leg. This improvement was accompanied by a statistically significant decreased in the frontal knee projection angle from pre-intervention [13.8 (7.38) degrees] to post-intervention [9.3 (6.09) degrees]. Statistical significant difference was set at p ˂0.05. Conclusion: A core strength training increased jump performance and it could play a role in ACL injury prevention programs in female team players.

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Section: Discussionsupporting

confidence: 84%

The effect of a core training program on jump performance in female handball players

Ferri-Caruana¹,

Pardo-Ibáñez²,

Cano-Garrido³

et al. 2022

Rev And Med Dep

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“…A minimum sample size was used to determine whether there were significant differences between the control and intervention groups, with β values of 0.2 (80%) and alpha error of 0.05 (5%). Data provided by Haddas et al [24] were used to obtain statistically significant differences between the groups, with a participation of at least 18 subjects per group, which made up for a total of 36 subjects. Bearing in mind that the expected dropout rate was 10%, a total of at least 40 subjects would be necessary to carry out the study.…”

Section: Sample Size Calculationmentioning

confidence: 99%

Effects of a Gluteal Muscles Specific Exercise Program on the Vertical Jump

Gallego‐Izquierdo

Vidal-Aragón

Calderón-Corrales

et al. 2020

IJERPH

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The vertical jump is a complex movement where many factors are involved in the final result. Currently, how a specific exercise program for gluteal muscles can affect the vertical jump is unknown. So, the aim of this study was to examine the effect of a specific exercise program for the gluteal muscles on a vertical jump. Forty-nine amateur athletes completed an 8-week program. The experimental group received a specific gluteal muscle training program in addition to their regular training routine, whereas the control group received their regular training routine. Jump height, flight time, speed and power were assessed (baseline, postintervention, and 4-week follow-up). Repeated-measures analyses of variance were conducted with ∝ ≤ 0.05. We calculated Eta squared effect sizes with 95% confidence intervals. Measurements at 8 weeks revealed significant increases in the experimental group compared to the control group for the values: jump height (p < 0.05) (experimental group = 17.15%; control group = 3.09%), flight time (p < 0.001) (experimental group = 7.98%; control group = 3.52%), speed (p < 0.01) (experimental group = 1.96%; control group = 1.83%) and power (p < 0.05) (experimental group = 4.43%; control group = 0.32%). However, at follow-up, these changes were not maintained. These data suggest that this specific training protocol for the gluteal muscles is effective in order to improve vertical jump performance in amateur athletes who use the vertical jump in their routine training habits.

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“…To identify the specific intersegmental coordination pattern of the foot segments, which can be a risk factor for MTSS, sports related motion should be assessed. Single-leg drop jump is one of the tasks to be employed for assessment of the sports related injuries [ 19 , 20 ]. Because single-leg drop jump requires landing shock attenuation and force transfer to leap up again immediately after landing, this motion is similar to the motion in sports.…”

Section: Introductionmentioning

confidence: 99%

Difference in the foot intersegmental coordination pattern between female lacrosse players with and without a history of medial Tibial stress syndrome; a cross‐sectional study

Akuzawa

Oshikawa

Nakamura

et al. 2022

Journal of Foot and Ankle Research

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Background Medial tibial stress syndrome is a common sports related injury. Altered foot kinematics can be a risk factor for the injury. Since foot segments can move independently, intersegment coordination is important for proper foot function. This study aimed to compare the foot intersegmental coordination pattern and single segment kinematics between female lacrosse players with and without a history of medial tibial stress syndrome during drop jump. Methods Twelve players with a medial tibial stress syndrome history and 12 players with no history were enrolled. Foot kinematics, including angle at landing and peak angle and excursion at the rearfoot, midfoot, and forefoot during single-leg drop jumps were analysed. Each segment motion data from landing to leaping was time-scaled to 100% to analyse the intersegmental coordination with a modified vector coding technique. Instant intersegmental coordination of every 1% was classified into four patterns (in-phase, two segments rotate in the same direction with similar amplitudes; anti-phase, two segments rotate in opposite directions; proximal phase, proximal segment dominantly rotates in the same direction compared to the distal segment; and distal phase, distal segment dominantly rotates in the same direction compared to the proximal segment). The percentage of intersegmental coordination pattern and kinematics in each segment were compared between the groups using the Student’s t test. Results Groups with a history of medial stress syndrome showed a significantly higher percentage of proximal phase between the rearfoot and midfoot in the sagittal (Mean ± SD; history, 52.2 ± 17.9%, no history, 29.3 ± 16.7%; p = 0.004) and coronal planes (history, 40.3 ± 22.0%, no history, 15.9 ± 9.1%; p = 0.004). Dorsiflexion excursion (history, 34.5 ± 4.5°, no history, 29.6 ± 2.1°; p = 0.003) were significantly larger in a history of medial tibial stress syndrome group compared to no history group. Conclusions Rearfoot dominant motion pattern relative to the midfoot may be related to medial tibial stress syndrome. Intersegmental coordination analysis may be useful for detecting abnormal foot coordination patterns. Also, stabilization for the rearfoot may be required rather than the midfoot for intervention.

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Volitional Spine Stabilization During a Drop Vertical Jump From Different Landing Heights: Implications for Anterior Cruciate Ligament Injury

Cited by 15 publications

References 45 publications

The effect of a core training program on jump performance in female handball players

The effect of a core training program on jump performance in female handball players

Effects of a Gluteal Muscles Specific Exercise Program on the Vertical Jump

Difference in the foot intersegmental coordination pattern between female lacrosse players with and without a history of medial Tibial stress syndrome; a cross‐sectional study

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