I have recently started with a 32 year old female client who initially weighed 68kg. I’ve put her on circuit training. I have started her with a five minute interval of 30 seconds on the bike followed by a set of exercise for each body part (about 20 reps each). This is repeated twice with a minute rest in between sets. I also train her using deep and shallow water in the pool. She reported that her weight has dropped to 66kg after one week of training. But she said that her thighs have gotten bigger (wearing skirts told her so). At the same time, her waist and hips have gotten smaller. She said that the interval bike routine has enlarged her thighs. Can this be true?
It sounds like you have created a very intense program for your client. She is already experiencing some weight loss. Just remember in that first week, the majority of weight is probably coming from her glycogen stores and not necessarily fat. Now with this type of training and her body not being adapted, she certainly could be developing new tissue (hypertrophy) to overcome the challenge. The important aspect of this, though, is how much muscle could she have created in just one week? Her chances of doing that are very small in that time period. Genetically she might have lost some weight in some places that made her think her thighs got bigger when they probably stayed the same. Tell her not to worry. Keep up the hard work and genetically she will lose body fat from pre-determined areas as her program continues to progress.