| In
recent weeks SINI Sport Physiologist Declan Gamble has been
involved in a series of presentations and workshops, which
have been aimed at facilitating the preparations of athletes,
coaches and officials, for participation in high level sporting
competitions. Summary details of these sessions are included
below.
The
first presentation was given at the Ulster Council Referee
Conference, which was held at the Glenavon Hotel, in Cookstown
on the 13th of January. This conference evolved from the
hugely successful Ulster Council Coaching Conference, that
took place at the same venue in November, last year. Approximately,
100 delegates including current referees, assessors and
county coordinators, attended the event. During the morning
session Declan outlined the work that had been conducted
to date within the referee analysis study. This study involved
the use of a tracking system (SP10, manufactured by GPSports,
Australia), that utilised global positioning satellites
(GPS) to capture the movement profiles of referees during
the Ulster and All-Ireland Senior Football Championships
last year. Analysis of the information illustrated that
the referees covered an average distance of 9.1 km during
the games, exercised at an average heart rate of 168 beats
per minute and sprinted approximately 55 times (the majority
of the sprints lasting between 1-3 s). This summary data
illustrated that refereeing games imposed a significant
physiological load on referees, and was similar to that
expected of midfield players.
In
the afternoon, Declan outlined the significance of the findings
and interpreted these in terms of training and hydration
requirements. With the increase in the pace of the modern
game, the traditional training practices of referees, i.e.
continuous running at a moderate intensity, a couple of
times a week, was clearly not appropriate to prepare referees
for the high-intensity intermittent exercise profile that
was illustrated by the GPS results. Therefore, one of the
main conclusions was that referees needed to adopt appropriate
training regimens that would recreate the demands of refereeing
during games and facilitate increased performances during
matches. In addition, evidence was presented that highlighted
current sup-optimal hydration strategies. Dehydration has
been shown to affect both physical and mental performance.
Consequently, if a referee experiences significant dehydration
during a game this could affect their ability to keep up
with play and make the correct decision in critical situations,
which would ultimately have a substantial bearing on both
their own performance and the outcome of the match. Therefore
appropriate hydration is paramount. Finally, the protocols
currently used to assess the physical fitness of the referees
were examined and discussed. Criticism of the traditional
battery of tests has led to calls for a refinement of the
assessment process and it is envisaged that future physical
evaluations will be more specific to the demands of refereeing.
The
second workshop, part of a series organised by the Sports
Council for Northern Ireland, to facilitate preparations
for the Northern Ireland Commonwealth Games squad, examined
some of the physical and psychological issues associated
with competing in the forthcoming games in Australia. During
the first presentation Professor Craig Mahoney outlined
the importance of Mental Toughness and highlighted practical
tips which could be used by athletes during competition.
This session was highly evocative and challenged the athletes
present to focus on wining and not just on competing! In
the second session Declan focused on Fine tuning for Melbourne:
acclimatisation and implications of long haul flights. This
presentation detailed the environmental and travel challenges
facing athletes and coaches travelling to Australia. For
instance, the straight-line distance between Melbourne and
Belfast is approximately 10,655 miles. If the stopovers
in London and Singapore are included the journey time is
roughly 35 hours. Therefore it is likely that the squad
will arrive in Melbourne fatigued. More importantly, Melbourne
is currently 11 hours ahead in terms of time (+11 GMT) from
Belfast, and this has significant implications for athletic
performance. For example, the squad arrives early in the
morning in Melbourne. However because of the time zone difference,
their internal body clocks will be programmed to Belfast
time, which means that if they were back home they would
be preparing to go to bed. This mismatch between local time
and the corresponding time in the place of departure, is
linked to a disruption in the normal daily biological rhythms
of the body and therefore, the existing sleep-wake cycle.
This phenomenon is commonly known as jet lag. Unfortunately,
adjustment to the new time zones can take a couple of days
and even weeks in some cases. Therefore, training intensity
needs to be modified to address the reduction in athletic
performance during the first couple of days at the new location.
Some simple strategies were presented by Declan to facilitate
this adjustment.
The second challenge facing the squad related to the environmental
issues. The climate in Melbourne is classified as moderate
in March (in comparison to the hot summers that most people
associate with Australia) with an average temperature likely
to be around 13-24oC (possible range 3 - 42 oC). Unsurprisingly
Belfast is somewhat cooler with average temperatures of
3-9oC (possible range -12 - 19oC) expected at that time
of year. Although unlikely, a worst case scenario could
entail athletes leaving Belfast at sub-zero temperatures
and arriving in Melbourne at +30 oC. Based on the average
data however, it is unlikely that the environment will pose
significant problems for most athletes. Nevertheless, if
you are not accustomed to exercise in the heat, the hyperthermia
and associated dehydration can have a detrimental impact
on performance. Therefore, strategies need to be employed
to address these issues particularly for athletes participating
in outdoor events. Interestingly, Melbourne on average has
more rainfall than Belfast, 56mm compared to 50mm, during
the month of March. However, it is more likely to rain in
Belfast (1/2 days) compared to Melbourne (1/3 days). From
this data, both dry and wet gear may be required for training
and competing. In light of this information, the coaches
and athletes were encouraged to develop appropriate strategies
to address issues such as nutrition and hydration requirements,
regulation of sleep, modification of training programmes
and incorporation of recovery interventions. Moreover, development
of appropriate strategies could potentially contribute to
excellent performances during the competition.

The
feedback from both the referee Conference and the Commonwealth
Games workshop was very positive. Information regarding
additional workshops will be included in the forthcoming
newsletter.
Declan
Gamble
SINI physiologist |