Combined training and monitoring device

A body resistance physical exercise device, comprising:

• a) an electrical monitoring element configured to measure information relative to exercise parameters during repetitive motions performed with said device;
• b) an elastomeric band configured to stretch when subjected to a user-generated force resulting from the repetitive motions;
• c) an adjustment apparatus comprising a housing;
• d) a locking apparatus positioned within the housing and capable of being configured in a locked state and an unlocked state;
• and
• e) a handle section connected to the elastomeric band and configured to transmit the force to the elastomeric band;
• wherein:
• the elastomeric band comprises a first end;
• and a second end secured to the housing so that the elastomeric band extends away from the housing;
• the elastomeric band is configured to return to the housing and enter the housing at a first location along a length of the elastomeric band so that a lengthwise portion of the elastomeric band located between the second end of the elastomeric band and the first location along a length of the elastomeric band forms a loop;
• the elastomeric band is further configured to pass through the housing and exit the housing at a second location along the length of the elastomeric band;
• the handle section is connected to the elastomeric band by way of the loop;
• the locking apparatus is configured to secure the elastomeric band in relation to the housing when the locking apparatus is in the locked state;
• and
• the locking apparatus is further configured to permit the elastomeric band to move through the housing when the locking apparatus is in the unlocked state so as to change the first and second locations at which the elastomeric band respectively enters and exits the housing and thereby vary a size of the loop.