The Effect of Diathermy Therapy on Isolated Lumbar Extension (ILEX) Training

To evaluate the effectiveness of the Isolated Back Extension (ILEX) machine Myosom and examine the influence of preheating on resistance training, the investigators will recruit a cohort of 14 healthy individuals, including both male and female participants, who have no prior experience with ILEX training, for a 9-week training program consisting of a total of 18 sessions. Baseline (BL) measurements will be conducted in the week before the initiation of training, and two follow-up measurements (F/U 1 and F/U 2) carried out after the ninth and eighteenth sessions, with a minimum break of 48 hours after the last training session to ensure proper recovery and to prevent inaccuracies in muscle thickness measurement arising due to acute oedema.