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Leveled badminton players present different footwork kinetics response
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Abstracts / Journal of Science and Medicine in Sport 20S (2017) 20–33
64
65
Under utilisation of concussion assessment tools by sports clinicians working in cerebral palsy football
An analysis of night sleep after CO2 water bathing in athletes T. Wada 1,3,∗ , N. Yamamoto 2,3 , M. Wada 1,3 , H. Jigami 1,3 , T. Matsumoto 1,3 , Y. Shimoyama 1,3
L. West 1,∗ , S. Girffin 2 , R. Weiler 3,4,5 , K. Win 5 , O. Ahmed 5,6
1
1
2
Royal Melbourne Hospital, Australia 2 College of Medical and Dental Sciences, University of Birmingham, United Kingdom 3 University College London Hospitals NHS Foundation Trust & UCL Institute of Sport, Exercise and Health, United Kingdom 4 Fortius Clinic, United Kingdom 5 FA Centre for Disability Football Research, The Football Association, United Kingdom 6 Faculty of Health and Social Sciences, Bournemouth University, United Kingdom
Background: Concussion poses a significant clinical challenge to sports clinicians, especially those working in contact sports such as football (soccer). The use of an assessment tool, such as the Sports Concussion Assessment Tool 3 (SCAT 3) created during the 2012 concussion consensus meeting in Zurich, has been heralded as the gold standard of care in diagnosing and managing players with concussion towards a safe return to play. We aimed to gain an insight into concussion education and management principles in a population where little research has been previously performed. Objective: To determine the knowledge, attitudes, and current management protocols in regard to concussion amongst team physicians/physiotherapists working at the 2015 Cerebral Palsy Football World Championships. Methods: A 22-item questionnaire was disseminated to the ‘head of medicine’ of all teams participating at the 2015 Cerebral Palsy Football World Championships (n = 15). Individuals were guided through the questionnaire by a member of the research team and responses were collated. The questionnaire assessed the knowledge, attitudes and current management protocols in regard to concussion, both generally, and specifically to cerebral palsy football. Results: The questionnaire was completed by 14 individuals representing the care of 14 different teams. Whilst 71% documented that they had received general education on concussion, only 28.6% use an assessment tool to help diagnose (3 used the SCAT3 and 1 used Impact). 50% reported performing any form of cognitive assessment in this population difficult due to a multitude of factors. Discussion: Whilst general education regarding concussion was found to be high overall, the lack of confidence in the current available assessment tools’ ability to be useful in this population limits their usage. We suggest that education needs to be more specific tailored to the concussed disabled athlete and how they may present and need to be managed differently to able-bodied athletes.
Kokushikan University, Japan Japanese Red Cross Hokkaido College of Nursing, Japan 3 Niigata University of Health and Welfare, Japan
Background: It is clear that activities of daily living (ADL) have good human locomotion, food intake, adequate brain activities, etc. To have a good ADL, it is thought that human body needs to no fatigue and sufficient body recovery. One of the body recoveries has the night sleep. Even though sound sleep has many factors (i.e. bed, pillow, room temperature, time of onset of sleep and circadian rhythm, etc.), human sleep has not been explained yet. In Japan, there are water immersion bathing of age-old customs. The bathing has not only washing body but also warm body and improve the blood flow. However, the relationship CO2 water bathing and night sleep has not clarified. The purpose of this study is to examine the effect of CO2 water bathing on responses to the night sleep. Methods: Eight healthy college students participated in this study. The subjects were attached to surface electrodes on their forehead to record an electroencephalogram (EEG sensor ZA, Proassist, Japan). To measure the sleep–wake cycle, SpO2 monitor (PulsewatchGplusX PMP-200, Pacific-Medico, Japan) and accelerometers (Lifecorder GS, SUZUKEN, Japan) was used. The sleep–wake data were analysed by circadian rhythm analysis software (RECT, Pacific-Medico, Japan and SleepSign Act, KISSEI COMTEC, Japan). Sleep variables analysed time in bed (TIB), sleep period time (SPT), total sleep time (TST), wake time after sleep onset (WASO), sleep efficiency (SE), sleep latency (SL), time of sleep onset, time of wake onset, and bed out latency (BOL). CO2 water bathing is 10 min water immersion (1000 ppm, 38 ◦ C). Results: For the sleep latency, Sleep after CO2 bathing was shorter than normal sleep (2.0 ± 1.7 min vs 6.4 ± 2.0 min). During sleep of the single night, the delta wave incidence of EEG appeared more in the CO2 group (CO2 group 65.2% vs Control group 56.4%). NREM sleep of a night increased in an CO2 group. Discussion: Sleep is homeostatically controlled, and indeed, an increase in the NREM sleep is typically observed after CO2 water bathing in comparison to normal sleep. CO2 water bathing before night sleep was thought to improve the quality of human night sleep. https://doi.org/10.1016/j.jsams.2017.09.256 66 Leveled badminton players present different footwork kinetics response L. Yu
https://doi.org/10.1016/j.jsams.2017.09.255
Loudi Vocational and Technical College, China Introduction: Badminton footwork is one of the most fundamental and critical skills in badminton, which enable players to change positions quickly with excellent motor control. Knowing the kinetics of lunge is not only beneficial for badminton performance but also for injury prevention. The purpose was to analyze the kinetic response between different-leveled badminton players while performing right forward lunge. Methods: Six badminton male athletes and six age-matched male amateurs joined in the test. A Novel pedar insole plantar
Abstracts / Journal of Science and Medicine in Sport 20S (2017) 20–33
pressure measuring system and a Kistler force platform was synchronized to record the insole pressure and outsole. The ground reaction force in horizontal (Fx), transverse (Fy) and vertical (Fz) axis were recorded to illustrate the kinetic difference. Participants were required to play badminton for ten minutes to warming up and familiarization of the experiment environment. Each participant performed six trials of lunge. The SPSS16.0 was taken for the statistical analysis, with significance level at 0.05. Results: Badminton amateurs perform significant lateral shift in the heel-supporting and forefoot-pushing phase during the lunge. As to the ground reaction force in three axis, badminton amateurs show obviously higher vertical loading rate (Fz ) in the striking phase, comparing with badminton athletes (Fz). And badminton amateurs perform smaller vertical ground reaction force (Fz ) in the pushing-off phase while finishing shot. In terms of ground reaction force in horizontal and transverse axis, badminton amateurs were lower than badminton athletes. Discussion: As one of the most frequently used footwork, lunge is not only related with badminton competition or match
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performance, but also linked with the ankle sprain and Achilles tendon or even lower extremities injury risks. In the heel-landing phase, amateurs show a higher vertical loading rate, which was proven to be a high incidence of stress injuries to the lower limb, especially the tibia stress fracture, patellofemoral pain, Achilles tendinopathy. The lateral shift of foot loading in the heel-supporting and forefoot-pushing phase among amateurs might imply a higher risk of ankle sprain compared with athletes. Combining with the lower ground reaction force in vertical axis, it is related with lunge performance (motions control). Considering this finding, it will be beneficial for badminton performance improvement and injury prevention. Future investigation shall take kinematic analysis to deeply and thoroughly illustrate the difference between performance related badminton participants, so as to provide practical suggestion for badminton training. https://doi.org/10.1016/j.jsams.2017.09.257
Abstracts / Journal of Science and Medicine in Sport 20S (2017) 20–33
64
65
Under utilisation of concussion assessment tools by sports clinicians working in cerebral palsy football
An analysis of night sleep after CO2 water bathing in athletes T. Wada 1,3,∗ , N. Yamamoto 2,3 , M. Wada 1,3 , H. Jigami 1,3 , T. Matsumoto 1,3 , Y. Shimoyama 1,3
L. West 1,∗ , S. Girffin 2 , R. Weiler 3,4,5 , K. Win 5 , O. Ahmed 5,6
1
1
2
Royal Melbourne Hospital, Australia 2 College of Medical and Dental Sciences, University of Birmingham, United Kingdom 3 University College London Hospitals NHS Foundation Trust & UCL Institute of Sport, Exercise and Health, United Kingdom 4 Fortius Clinic, United Kingdom 5 FA Centre for Disability Football Research, The Football Association, United Kingdom 6 Faculty of Health and Social Sciences, Bournemouth University, United Kingdom
Background: Concussion poses a significant clinical challenge to sports clinicians, especially those working in contact sports such as football (soccer). The use of an assessment tool, such as the Sports Concussion Assessment Tool 3 (SCAT 3) created during the 2012 concussion consensus meeting in Zurich, has been heralded as the gold standard of care in diagnosing and managing players with concussion towards a safe return to play. We aimed to gain an insight into concussion education and management principles in a population where little research has been previously performed. Objective: To determine the knowledge, attitudes, and current management protocols in regard to concussion amongst team physicians/physiotherapists working at the 2015 Cerebral Palsy Football World Championships. Methods: A 22-item questionnaire was disseminated to the ‘head of medicine’ of all teams participating at the 2015 Cerebral Palsy Football World Championships (n = 15). Individuals were guided through the questionnaire by a member of the research team and responses were collated. The questionnaire assessed the knowledge, attitudes and current management protocols in regard to concussion, both generally, and specifically to cerebral palsy football. Results: The questionnaire was completed by 14 individuals representing the care of 14 different teams. Whilst 71% documented that they had received general education on concussion, only 28.6% use an assessment tool to help diagnose (3 used the SCAT3 and 1 used Impact). 50% reported performing any form of cognitive assessment in this population difficult due to a multitude of factors. Discussion: Whilst general education regarding concussion was found to be high overall, the lack of confidence in the current available assessment tools’ ability to be useful in this population limits their usage. We suggest that education needs to be more specific tailored to the concussed disabled athlete and how they may present and need to be managed differently to able-bodied athletes.
Kokushikan University, Japan Japanese Red Cross Hokkaido College of Nursing, Japan 3 Niigata University of Health and Welfare, Japan
Background: It is clear that activities of daily living (ADL) have good human locomotion, food intake, adequate brain activities, etc. To have a good ADL, it is thought that human body needs to no fatigue and sufficient body recovery. One of the body recoveries has the night sleep. Even though sound sleep has many factors (i.e. bed, pillow, room temperature, time of onset of sleep and circadian rhythm, etc.), human sleep has not been explained yet. In Japan, there are water immersion bathing of age-old customs. The bathing has not only washing body but also warm body and improve the blood flow. However, the relationship CO2 water bathing and night sleep has not clarified. The purpose of this study is to examine the effect of CO2 water bathing on responses to the night sleep. Methods: Eight healthy college students participated in this study. The subjects were attached to surface electrodes on their forehead to record an electroencephalogram (EEG sensor ZA, Proassist, Japan). To measure the sleep–wake cycle, SpO2 monitor (PulsewatchGplusX PMP-200, Pacific-Medico, Japan) and accelerometers (Lifecorder GS, SUZUKEN, Japan) was used. The sleep–wake data were analysed by circadian rhythm analysis software (RECT, Pacific-Medico, Japan and SleepSign Act, KISSEI COMTEC, Japan). Sleep variables analysed time in bed (TIB), sleep period time (SPT), total sleep time (TST), wake time after sleep onset (WASO), sleep efficiency (SE), sleep latency (SL), time of sleep onset, time of wake onset, and bed out latency (BOL). CO2 water bathing is 10 min water immersion (1000 ppm, 38 ◦ C). Results: For the sleep latency, Sleep after CO2 bathing was shorter than normal sleep (2.0 ± 1.7 min vs 6.4 ± 2.0 min). During sleep of the single night, the delta wave incidence of EEG appeared more in the CO2 group (CO2 group 65.2% vs Control group 56.4%). NREM sleep of a night increased in an CO2 group. Discussion: Sleep is homeostatically controlled, and indeed, an increase in the NREM sleep is typically observed after CO2 water bathing in comparison to normal sleep. CO2 water bathing before night sleep was thought to improve the quality of human night sleep. https://doi.org/10.1016/j.jsams.2017.09.256 66 Leveled badminton players present different footwork kinetics response L. Yu
https://doi.org/10.1016/j.jsams.2017.09.255
Loudi Vocational and Technical College, China Introduction: Badminton footwork is one of the most fundamental and critical skills in badminton, which enable players to change positions quickly with excellent motor control. Knowing the kinetics of lunge is not only beneficial for badminton performance but also for injury prevention. The purpose was to analyze the kinetic response between different-leveled badminton players while performing right forward lunge. Methods: Six badminton male athletes and six age-matched male amateurs joined in the test. A Novel pedar insole plantar
Abstracts / Journal of Science and Medicine in Sport 20S (2017) 20–33
pressure measuring system and a Kistler force platform was synchronized to record the insole pressure and outsole. The ground reaction force in horizontal (Fx), transverse (Fy) and vertical (Fz) axis were recorded to illustrate the kinetic difference. Participants were required to play badminton for ten minutes to warming up and familiarization of the experiment environment. Each participant performed six trials of lunge. The SPSS16.0 was taken for the statistical analysis, with significance level at 0.05. Results: Badminton amateurs perform significant lateral shift in the heel-supporting and forefoot-pushing phase during the lunge. As to the ground reaction force in three axis, badminton amateurs show obviously higher vertical loading rate (Fz ) in the striking phase, comparing with badminton athletes (Fz). And badminton amateurs perform smaller vertical ground reaction force (Fz ) in the pushing-off phase while finishing shot. In terms of ground reaction force in horizontal and transverse axis, badminton amateurs were lower than badminton athletes. Discussion: As one of the most frequently used footwork, lunge is not only related with badminton competition or match
33
performance, but also linked with the ankle sprain and Achilles tendon or even lower extremities injury risks. In the heel-landing phase, amateurs show a higher vertical loading rate, which was proven to be a high incidence of stress injuries to the lower limb, especially the tibia stress fracture, patellofemoral pain, Achilles tendinopathy. The lateral shift of foot loading in the heel-supporting and forefoot-pushing phase among amateurs might imply a higher risk of ankle sprain compared with athletes. Combining with the lower ground reaction force in vertical axis, it is related with lunge performance (motions control). Considering this finding, it will be beneficial for badminton performance improvement and injury prevention. Future investigation shall take kinematic analysis to deeply and thoroughly illustrate the difference between performance related badminton participants, so as to provide practical suggestion for badminton training. https://doi.org/10.1016/j.jsams.2017.09.257