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Factors impacting the introduction of information technology usage in netball coachingDaniell, Janine Unknown Date (has links)
With the growth in the use of technology in sports, there has been an improvement in sporting performances. Some may argue that the two go hand in hand, while others will write it off as coincidence. Nevertheless the use of technology in sport is seen on a daily basis. Cricket uses Hotspot, tennis uses Hawk-Eye and rugby uses slow motion video replays. In these sports codes, technology is already an aid to umpires. Little is known, however, about the technologies used to assist coaches in sports codes such as netball. This study investigated the factors impacting the introduction of information technology in the coaching of netball. The study commenced with using the term technology in the broader sense of the word to gain an understanding from netball coaches as to how technology could be incorporated into the sport. It was later narrowed down more specifically to computer technologies. The investigation was done at the Spar National Netball Championships in 2012, where coaches were surveyed about the preparation for the tournament of the provincial teams. The surveys included questions to coaches regarding the technologies used in preparation for a national tournament. The results obtained from the coaches were used to identify the current technologies used. Interviews were conducted after the analysis of the initial results to probe into the potential use of social media as a tool to assist coaches. Based on the results of the study, a number of factors that impact on the introduction of technology in the coaching of netball were identified. The factors and basic guidelines were validated through expert focus groups. Based on the findings from the experts, the factors and guidelines were refined. It is envisaged that the findings from this research can be used to assist netball coaches in deciding how to introduce the use of information technology into the sport.
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The effect of barefoot training on speed, agility, power and balance in netball players12 1900 (has links)
Thesis (M Sport Sc)--Stellenbosch University, 2011. / ENGLISH ABSTRACT: The running industry has seen a lot of changes over the past years. Minimalistic
footwear and barefoot training are redefining the running industry and community.
These new developments have led to extensive research being conducted on the
effects of barefoot running on kinetics, kinematics, energy expenditure and the
prevention of injuries. Most of the shoe manufacturers have come up with an idea to
mimic barefoot running. Barefoot running has shown to increase running economy
and decrease impact forces. Inconclusive evidence exists as to whether barefoot
training improves proprioception and muscle strength or reduces running-related
injuries.
The primary aim of the study was to determine the effects of barefoot training on
speed, agility, power and balance in netball players.
Twenty women netball players (age: 20 ± 2 years) volunteered for the study and were
randomly assigned to the barefoot group (n = 10) and the shod group (n = 10). All
participants had to attend at least 14 training sessions, where the barefoot group
gradually increased the barefoot exercise time. Speed, agility, vertical jump height,
single leg stability and lower leg circumferences were measured prior to and after
completion of the intervention programme.
At the completion of the intervention programme, participants had to give verbal
feedback regarding their subjective experience of barefoot training. Seventy percent
of the barefoot participants preferred barefoot training to shod training. The speed
test showed a small improvement over 10-metres (P > 0.05), but not over 20-metres
(P > 0.05).Agility had a significant improvement (0.14 seconds ± 0.10 seconds; P <
0.05) on the left and right leg (0.19 seconds ± 0.07 seconds; P < 0.05) for the
barefoot group. There was also an improvement in the single leg stability with the
right leg showing a significant improvement (P < 0.05) in anterior/posterior,
medial/lateral and overall stability for the barefoot group. All except the left
anterior/posterior index had a small practical effect post-intervention. No significant
increases were found in the circumferences or the vertical jump height. The results show that barefoot training results in improved agility and single leg
stability, compared to shod training. The effect it has on the prevention of injuries
could not be determined, as the duration of the study was too short. In conclusion it
can be deduced that barefoot training has a positive effect on agility and stability,
thus possibly leading to improved performance. / AFRIKAANSE OPSOMMING: Daar het baie veranderinge in die hardloopwêreld plaasgevind die afgelope paar jaar.
Minimalistiese skoene en kaalvoetoefening is van die grootste redes daarvoor. Baie
navorsing oor die effek van kaalvoet hardloop op die kinetiese en kinematiese
veranderinge in die voet, sowel as die energieverbruik en die voorkoming van
beserings is die laaste tyd gedoen. Die meeste van die groot skoenvervaardigers het
ook nie agtergebly nie en spog elk met hul eie minimalistiese skoen.
Daar is reeds bewys dat kaalvoetoefening effektiwiteit tydens hardloop verbeter en
dat die kragte wat op die liggaam inwerk tydens kaalvoetaktiwiteite, minder is tydens
kaalvoethardloop as wanneer daar met skoene gehardloop word. Baie navorsers
beweer ook dat kaalvoetoefening propriosepsie en spierkrag verbeter en dat oefengeïnduseerde
beserings verminder word as gevolg daarvan. Hierdie bewerings is
egter nog nie deur die navorsing bewys nie en kan dus net as bewerings gesien
word.
Die hoofdoel van die studie was om die effek van kaalvoetoefening op die spoed,
ratsheid, plofkrag en balans van netbalspelers te bepaal.
Die steekproef het uit 20 vroulike netbalspelers bestaan (ouderdom: 20 ± 2 jaar), wat
lukraak in die kaalvoet- (n = 10) en die kontrole groep (n = 10) opgedeel is. Daar is
van die spelers verwag om ‘n minimum van 14 oefensessies by te woon. Tydens die
oefensessies het die kaalvoet-groep die hoeveelheid tyd wat hulle kaalvoet
oefeninge doen stelselmatig vermeerder. Spoed, ratsheid, vertikale sprong hoogte,
eenbeen stabiliteit en omtrekke van die onderbeen is voor en na die
intervensieprogram gemeet.
Die spelers hetverbale terugvoering gegee oor hul ervaring van kaalvoetoefening. ‘n
Meerderheid van die deelnemers (70%) het kaalvoetoefening bo oefening in skoene
verkies. Daar was ‘n effense verbetering in die 10-meter spoedtoets (P > 0.05), maar
oor 20-meter kon dit nie volgehou word nie. ‘n Betekenisvolle verbetering tydens die
ratsheid toets is waargeneem vir die linker- (0.14 sekondes ± 0.10 sekondes; P < 0.05) en regterbeen (0.19sek ± 0.07sek; P < 0.05) van die kaalvoetgroep. Daar was
ook ‘n verbetering in die stabiliteit van die regterbeen in die anterior/posterior,
mediaal/lateraal en algemene stabiliteit (P < 0.05). Daar was ‘n klein praktiese effek
in al die post-intervensie metings ten opsigte van stabiliteit, behalwe vir die
anterior/posterior indeks van die linkerbeen. Geen betekenisvolle verskille het na die
intervensie voorgekom vir die plofkrag of onderbeen omtrekke nie.
Die resultate van die studie dui daarop dat kaalvoetoefening kan lei tot ‘n verbetering
in ratsheid en stabiliteit. Die invloed wat kaalvoetoefening het op die voorkoming van
beserings kon egter nie bepaal word nie, aangesien die duur van die studie nie lank
genoeg was nie. Die gevolgtrekking van die studie is dat kaalvoetoefening ‘n
positiewe effek op ratsheid en stabiliteit het, dus kan dit ook moontlik ‘n positiewe
effek op prestasie hê.
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