07.04.2018 Views

AD 2016 Q2

As we pointed out in the spring 2013 edition of the Alert Diver, even being a dive buddy has potential legal implications. So, to bump this up a notch, what about the diver training organisations themselves? Where do they stand? How do they relate to South African law? Are they all considered the same under our legal system in spite of the differences in organisational structures and training programmes? How does this affect their respective instructors and trainee divers from a legal perspective? These are not exactly simple questions. It is certainly true that the respective training organisations differ in a number of ways. However, this does not imply that there are necessarily differential legal implications for each of them. In fact, under South African law, the legal principles are common in all matters. Therefore, if you suffer a loss and you (or your estate in the case of a fatality) wish to recover damages, the legal principles would be applied commonly; whether you are driving or diving. Although not a frequent occurrence, there have been quite a number of law suits associated with diving injuries and damages in South Africa. This is not surprising, as the occurrence of law suits is really a function of “numbers”. As training increases, so do the chances of injuries and, with it, the chances of legal recourse. So, it remains wise to insure yourself, your equipment or your business in a proper and effective way. But before getting back to the potential differences amongst the training agencies, let’s first explore the foundational legal principles on which any civil claim would be adjudicated: inherent risk, negligence and duty to take care.

As we pointed out in the spring 2013 edition of the Alert Diver, even being a dive buddy has potential legal implications. So, to bump this up a notch, what about the diver training organisations themselves? Where do they stand? How do they relate to South African law? Are they all considered the same under our legal system in spite of the differences in organisational structures and training programmes? How does this affect their respective instructors and trainee divers from a legal perspective? These are not exactly simple questions.
It is certainly true that the respective training organisations differ in a number of ways. However, this does not imply that there are necessarily differential legal implications for each of them. In fact, under South African law, the legal principles are common in all matters. Therefore, if you suffer a loss and you (or your estate in the case of a fatality) wish to recover damages, the legal principles would be applied commonly; whether you are driving or diving.
Although not a frequent occurrence, there have been quite a number of law suits associated with diving injuries and damages in South Africa. This is not surprising, as the occurrence of law suits is really a function of “numbers”. As training increases, so do the chances of injuries and, with it, the chances of legal recourse.
So, it remains wise to insure yourself, your equipment or your business in a proper and effective way. But before getting back to the potential differences amongst the training agencies, let’s first explore the foundational legal principles on which any civil claim would be adjudicated: inherent risk, negligence and duty to take care.

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

RESEARCH, EDUCATION & MEDICINE<br />

EXPERT OPINIONS<br />

age-dependent (see Table 3). Ratios<br />

(and health risk) can generally be<br />

improved by modifying exercise and<br />

dietary patterns.<br />

BODY FAT<br />

A certain amount of body fat is required<br />

to maintain health. Too much fat,<br />

however, puts a strain on the heart and<br />

other systems. A slow upward creep in<br />

body fat with age is common and can<br />

be problematic. The best way to reduce<br />

excess body fat is to combine diet and<br />

exercise efforts. Dieting alone will<br />

cause the loss of muscle tissue<br />

and a reduction in metabolic<br />

rate that will ultimately make<br />

excess weight come back faster.<br />

Numerous formulas can predict<br />

percentage of body fat using<br />

different skinfold measures.<br />

PUSH-UP CAPACITY<br />

Push-up capacity is a convenient<br />

measure of strength. The<br />

normative data require a military<br />

push-up through the range of<br />

motion from full extension of<br />

the arm to the elbow bent at 90<br />

degrees. Starting from the upright<br />

position with the elbows fully<br />

extended, the push-ups are done<br />

at a steady pace until they can no longer be continued.<br />

Performance can be markedly improved with training.<br />

SIT-UP CAPACITY<br />

Sit-up capacity is another convenient measure of<br />

strength, but it is important to note that the norms are<br />

based on a style of sit-up that should be used only for<br />

testing. Anchoring the feet flat on the floor allows a<br />

strong hip flexor (psoas major) to power the movement<br />

instead of the abdominal muscles, potentially<br />

increasing back discomfort that sit-ups are also used<br />

to reduce (because the psoas major pulls the lumbar<br />

spine forward). Sit-ups (or “crunches”) are more<br />

appropriately done from a starting position with the<br />

thighs perpendicular to the floor and the calves lying<br />

unanchored across a chair or similar surface to make<br />

the movement reliant on the abdominal muscles.<br />

Table 3. Waist-to-hip ratios and risk of heart disease<br />

Age (years)<br />

Classification 20-29 30-39 40-49 50-59 60-69<br />

Men<br />

Low Risk

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!