There is a necessity for guidance to the board. Most often the biggest problems in terms of guidance or visual steering is less experienced jumpers don’t have the same spatial-temporal awareness that more experienced jumpers/athletes do. Less experienced jumpers also have stride/acceleration patterns that are relatively immature and lacking in consistency which further complicates this awareness. Even when using guidance most experienced jumpers are not focused on the board, they are just aware of the movement the board is making in their field of vision and relating information as such in terms of acceleration and speed to other proprioceptive feedback about the speed and acceleration they are relaying. The more experienced and more competent jumpers/athletes process this information automatically, while less experienced jumpers think and process this information while still performing causing some interference with performance.
As for the lady in question, if she’s even a semi experienced jumper and this is the problem, and I see this all the time as it’s the most common thing I have seen. Either the athlete is not adequately warmed up for the event, they are too tired from other events, etc…, or they made their mark when they warmed up less than adequately. Typically, it’s a result of less than adequate warm up, her warm ups should include at least 2-3 efforts of competition speed for a very brief period of time.
At a meet without recent previous coaching marks done in practice (hs coaches don’t always have the time to get the newest coaching marks from developmental athletes), if I can eyeball the athlete reaching and it’s not an easy task to do so, it would have to be an excessive reach with a less than spectacular jump for the athlete, I would just cue the athlete for greater speed/acceleration. If the athlete is creating tons of forward rotation and not very much distance, I would move them back probably 2-3 feet or 1/3-1/2 a step length if I have that data. However, I try my best not to move my athletes ever from a mark in a meet and 99% of if I do move them it’s back. I have switched the starting foot when it’s a clear straddle of the board and there are no stutter steps and someone else did their meet mark (likely marked the wrong foot on a runback, and again this is only with brand spanking new athletes).
Mostly though when looking at the board as a coach I am videotaping and typically that’s mostly with newer and inexperienced athletes and what I am ultimately trying to see is everything in the last ground contact to takeoff and figuring out a cue and feedback system/process they understand to break them of stutterring or reaching on the last step which are reflexes relating to improper guidance and inefficient mechanical output for performance. Don’t get me wrong, those videotaping sessions are all part of back tracking process to find the source of the problem and correct the first error. Fouling is a symptom of some other error and/or symptom which is done repeatedly till you get back to the source. Often it’s a maturing or inconsistent stride pattern in the semi-experienced jumper and it is almost always the case with an inexperienced jumper or athlete whose stride pattern will mature almost daily with a rather markedly less developed guidance system.
With the female athlete in question, it’s likely an inconsistent stride pattern because of inadequate warmup or it’s a newer more mature stride pattern that is faster than she’s used too and her guidance system hasn’t caught up yet. There are long term planning solutions to this problem with developing athletes that can be taken care of throughout a season. I can tell you one thing, if this ever happens with my athletes, at their next jump practice we move the approach back one stride (2 steps) and it’s happened only 2x in my short career and if they are jumping close to or better than previous practices/meets we stick with it.