Untrained limb handgrip strength was significantly higher than baseline on the 15th day of training in the ‘daily’ training compared to the 12th session during the ‘traditional’ 6 weeks of training. However, session 12 occurred on approximately day 28 of ‘traditional’ training, which is almost twice the number of days compared to ‘daily’ training. Interestingly, peak force plateaued at 5 weeks of training during the ‘traditional’ approach while there was no plateau for 18 consecutive days of training, perhaps indicating that more than 18 sessions in a row are required to optimise strength increases in the untrained limb. Based on the number of sessions, ‘traditional’ training showed faster strength gains (12 vs 15 sessions).
For athletes with a forearm/wrist injury, return-to-play time is very important and training the uninjured limb may benefit the injured limb in terms of enhancing recovery and/or improving strength while not being able to directly train it. This potentially makes regaining strength when fully recovered even quicker. Since recovery time is likely to be very important in an athletic scenario with rehabbing an injured limb/athlete, a daily approach to cross education training is likely to be ideal for the uninjured arm. Due to the arm being trained every day, it would be best to keep it to 1-2 exercises, maximum. For example, a daily programme for an injured wrist may look like this for the uninjured arm:
A1) Gripper 5×5
B1) Hand Opening w/ Rubber Bands 3×10
If taking the ‘traditional’ approach, then more exercises along with volume may further improve strength.