A functional agility short-term fatigue protocol changes lower extremity mechanics

Cortés, Nelson; Quammen, David; Lucci, Shawn; Greska, Eric; Oñate, James A.

doi:10.1080/02640414.2012.671528

Cited by 57 publications

(73 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This protocol consisted of vertical jumping, stepping up and down, squatting and L-Drill [33][34][35] . Prior to starting, participants' maximum vertical jump was recorded.…”

Section: Exposure To Fatiguementioning

confidence: 99%

Effects of Kinesio<sup>®</sup> Taping on Dynamic Balance Following Fatigue: a Randomized Controlled Trial

Zulfikri

Justine

2017

Phys Ther Res

View full text Add to dashboard Cite

ABSTRACT. The objective of the study was to determine the effects of Kinesio taping (KT) in inhibiting fatigue and preserving dynamic balance. Male recreational athletes were recruited to participate in this study. Participants were blinded from the group assignment and divided into four groups (Group A; KT and fatigue, Group B; no tape and fatigue, Group C; KT and no fatigue and Group D; no tape and no fatigue) using sequentially opaque, sealed envelopes. Pre and post measurements of Modified Star Excursion Balance Test ( SEBT ) composite score and normalized reach distance were used to measure dynamic balance. Adapted Functional Agility Short Term Fatigue Protocol (FAST-FP) was used to induce fatigue. KT was applied to rectus femoris, biceps femoris and medial gastrocnemius of the dominant leg. There was a significant change in the SEBT composite score between groups over time (p<0.05) and in time effect (p<0.05). The main effect comparing the SEBT composite score between the group was not significant (p=0.16). Group A (90.10±9.40) and Group B (86.14±10.50) attained lower mean for SEBT composite score compared to Group C (97.30±10.83) and Group D (98.13±9.47) suggests that fatigue have a diminishing effect on dynamic balance. KT application inhibit the effects of fatigue and preserved lateral and posterior direction of SEBT. KT application may lower the risk for injuries in the lateral and posterior directions following fatigue induction. Key words: dynamic balance, fatigue, Kinesio Taping, Star Excursion Balance Test (SEBT) (Phys Ther Res 00: 00-00, 0000)A large volume of literature has reported the high prevalence of sport-related injuries worldwide [1][2][3] . The most common injury site is the lower limb, and 23%-67% accounted for the knee 1,2) . Fatigue has been found to increase the risk of injury 4) . Fatigue is defined as decreased ability of the muscle to contract and exert a force that develops gradually soon after the onset of the sustained physical activity 5,6) . One of the consequences of fatigue is that it reduces the skill-related physical fitness component such as balance 7 ) and agility 8 ) and strength 4,7 ) which consequently impaired sports performance 9) . Dynamic balance has been well established as a vital component of fitness among athletes such as gymnasts, footballer, golfer, ice-hockey players, rifle shooter and taekwondo practitioners 10,11) . It has been shown that possessing good dynamic balance not only reduces the risk of injuries 12 ) but would increase sports performance 10 ) . Unfortunately, these advantages may be limited after fatigue 12) . Dynamic balance is defined as the ability to maintain the stability of the center of mass during movement 13 ) . Biomechanical deviations of the lower extremity occur during movement of the center of mass away from the base of support 14) . Balance is gained by maintaining equilibrium in a gravitational field and the ability to react quickly yet efficiently manners toward destabilizing forces to regain stability via postural adjustments...

show abstract

“…This protocol consisted of vertical jumping, stepping up and down, squatting and L-Drill [33][34][35] . Prior to starting, participants' maximum vertical jump was recorded.…”

Section: Exposure To Fatiguementioning

confidence: 99%

Effects of Kinesio<sup>®</sup> Taping on Dynamic Balance Following Fatigue: a Randomized Controlled Trial

Zulfikri

Justine

2017

Phys Ther Res

View full text Add to dashboard Cite

show abstract

“…Although 4 minutes appears long enough to induce some alterations in landing mechanics, additional changes in sagittal-plane movement have occurred in a study with a slightly longer duration of exercise. 19 After 6 minutes of soccer drills, female National Collegiate Athletic Association Division I soccer players landed with increased knee internal-rotation and decreased knee-and hip-flexion angle. Both a longer duration and incorporation of multidirectional tasks may be necessary to truly assess changes.…”

mentioning

confidence: 99%

“…11,15 Previous researchers have used exercise protocols that have been short in duration, 11,[17][18][19] consisted only of open kinetic chain tasks, 16 or required participants to repeat a single task such as parallel squats. 14,20 Investigators evaluating longer durations of exercise have used treadmill running or sprinting 18,21 rather than the multidirectional tasks inherent to most sports.…”

mentioning

confidence: 99%

“…In order to obtain the most relevant findings and apply conclusions to the athletic population, we developed a functional exercise protocol consisting of a variety of multidirectional tasks and sought to extend the duration compared with that of previous studies. 11,15,19 To make our study as clinically relevant as possible, we chose the LESS to evaluate landing technique. 9 It is a valid and reliable clinical movementassessment tool that allows for efficient evaluation of high-risk movement patterns.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Lower Extremity Landing Biomechanics in Both Sexes After a Functional Exercise Protocol

Wesley

Aronson

Docherty

2015

Journal of Athletic Training

View full text Add to dashboard Cite

Context: Sex differences in landing biomechanics play a role in increased rates of anterior cruciate ligament (ACL) injuries in female athletes. Exercising to various states of fatigue may negatively affect landing mechanics, resulting in a higher injury risk, but research is inconclusive regarding sex differences in response to fatigue.Objective: To use the Landing Error Scoring System (LESS), a valid clinical movement-analysis tool, to determine the effects of exercise on the landing biomechanics of males and females.Design: Cross-sectional study. Setting: University laboratory.Patients or Other Participants: Thirty-six (18 men, 18 women) healthy college-aged athletes (members of varsity, club, or intramural teams) with no history of ACL injury or prior participation in an ACL injury-prevention program.Intervention(s): Participants were videotaped performing 3 jump-landing trials before and after performance of a functional, sportlike exercise protocol consisting of repetitive sprinting, jumping, and cutting tasks.Main Outcome Measure(s): Landing technique was evaluated using the LESS. A higher LESS score indicates more errors. The mean of the 3 LESS scores in each condition (preexercise and postexercise) was used for statistical analysis.Results: Women scored higher on the LESS (6.3 6 1.9) than men (5.0 6 2.3) regardless of time (P ¼ .04). Postexercise scores (6.3 6 2.1) were higher than preexercise scores (5.0 6 2.1) for both sexes (P ¼ .01), but women were not affected to a greater degree than men (P ¼ .62).Conclusions: As evidenced by their higher LESS scores, females demonstrated more errors in landing technique than males, which may contribute to their increased rate of ACL injury. Both sexes displayed poor technique after the exercise protocol, which may indicate that participants experience a higher risk of ACL injury in the presence of fatigue. Women consistently demonstrated higher Landing Error Scoring System scores than men, committing more errors in landing technique both before and after exercise. The Landing Error Scoring System scores for both sexes increased after exercise, indicating that both males and females were more likely to demonstrate high-risk landing mechanics when fatigued. A relatively short period of intense exercise was sufficient to cause detrimental changes in landing mechanics.

show abstract

“…The mechanisms causing these movements to be altered once a player reaches fatigue have yet to be examined, however, the effects of fatigue on both static and dynamic activities, focusing primarily on the lower extremity, have been extensively examined in other sports [2,3,[10][11][12][13][14][15][16] . While little research has aimed to examine kinematic differences in upper extremity movement patterns following fatigue, the literature available on the lower extremity has identified potential flawed mechanics that increase the risk of injury [2,3,[10][11][12][13][14][15][16] . For instance, movements that involve sudden change of direction, landing from a jump, and rapid stops are all non-contact mechanisms of injury that are greatly affected by lower extremity kinematics.…”

mentioning

confidence: 99%

The effects of aerobic fatigue on jump shot kinematics in team handball players

Plummer

Oliver

2015

JBEI

View full text Add to dashboard Cite

Background: Aerobic fatigue from running may contribute to altered kinematics and as a result the possibility of injury exists. The purpose of this study was to examine the effects of aerobic fatigue on jump shot kinematics in team handball players. Methods:Ten male team handball players (23.60 ± 3.06 years; 184.68 ± 8.78 cm; 84.76 ± 9.23 kg) volunteered. An electromagnetic tracking system was used to examine the kinematics of the jump shot prior to and following aerobic fatigue. The fatiguing protocol consisted of running to exhaustion at a speed that corresponded with 80% of their heart rate maximum.Results: Significant pelvis and trunk kinematic differences were observed following the aerobic fatigue protocol. For both the trunk (F 6, 54 = 5.10; P < .01; power = 0.99) and pelvis (F 3, 27 = 14.47; P < .01; power = 1.00) a three-way interaction of event x time x direction was observed. At foot contact, significant differences were observed for pelvis lateral flexion, pelvis rotation, and trunk flexion. The pelvis was positioned with greater lateral flexion to the contralateral side (-1.25° ± 3.41° to -3.39° ± 4.14°) and increased contralateral pelvis rotation was observed (-43.07° ± 12.92° to -50.79° ± 12.26°). Pelvis lateral flexion towards the contralateral side was also significantly greater at ball release following fatigue (-21.90° ± 5.99° to -25.55° ± 7.79°). Trunk rotation significantly increased from -6.80° ± 10.07° to -12.55° ± 10.97° at maximum external rotation following fatigue. Conclusion:Altered mechanics were observed at the pelvis and trunk and these alterations may contribute to injury in team handball players as a player reaches fatigue.

show abstract

A functional agility short-term fatigue protocol changes lower extremity mechanics

Cited by 57 publications

References 37 publications

Effects of Kinesio<sup>®</sup> Taping on Dynamic Balance Following Fatigue: a Randomized Controlled Trial

Effects of Kinesio<sup>®</sup> Taping on Dynamic Balance Following Fatigue: a Randomized Controlled Trial

Lower Extremity Landing Biomechanics in Both Sexes After a Functional Exercise Protocol

The effects of aerobic fatigue on jump shot kinematics in team handball players

Contact Info

Product

Resources

About