sure. you can do the jump lunges and the squat thrust (burpee) w/o any equip. also the big hops. Both feet together, swing your arms, jump as far as you can. To do any hurdle variation (tires, or ladder) you can use the garden hose. Or schwa from around the house. Jump over a ball. a bat, your fins, your bike, your ski's, milk crate or just your imagination. The point , for you, is the muscle training not really the height. So jumping over nothing is just fine or something as simple as throwing the broom out in the backyard and aim to jump over it, front- to-back, side-to-side, single footed, try jumping over it backwards, Ha, not as easy as you thought?<br>
as for the box or the steps, get creative, look around the garage, and sturdy solid surface will do. Cinderblock? parkbench? Jump off a back porch step then jump straight up in the air.<br><br>
some excerpts:<br>
Plyometric training utilises the stretch-reflex mechanism, allowing for much greater than normal force to be generated by pre-stretching a muscle (the eccentric contraction) before it contracts. In plyometric exercise, overload is applied to skeletal muscle in a manner that rapidly stretches the muscle immediately prior to the concentric contraction i.e. drop jumping, standing jump, multiple jumps, single leg jumps, hops, and bounds. These exercises develop neuromuscular firing patterns and improve the muscle contractility of specific muscle groups.<br><br><b><i>Bounding and hurdling</i></b><br>
If forward motion is more the name of your game, try some bounding. This is a form of plyometric training, where over sized strides are used in the running action and extra time spent in the air. Two-legged bounds reduce the impact to be endured, but to increase the intensity one legged bounding, or hopping, can be used. Bounding upstairs is a useful way to work on both the vertical and horizontal aspects of the running action. Multiple jumps over a series of obstacles like hurdles are valuable drills for athletes training for sprinting or jumping events.<br>
Examples of lower body plyometric exercises with intensity level:
<ul><li>Standing based jumps performed on the spot (low intensity) - Tuck Jumps, Split Jumps</li>
<li>Jumps from standing (low-medium intensity) - Standing long jump, Standing hop, Standing jump for height</li>
<li>Multiple jumps from standing (medium intensity) - bounds, bunny hops, double footed jumps over low hurdle, double footed jumps up steps</li>
<li>Multiple jumps with run in (High intensity) - 11 stride run + 2 hops and a jump into sandpit, 2 stride run in + bounds</li>
<li>Depth jumping (high-very high intensity) - jumps down and up off box (40 to 100cm), bounding up hill</li>
<li>Eccentric drop and hold drills (high-very high intensity) - hop and hold, bound/hop/bound/hop over 30 metres (athletes stop and hold on each landing before springing into the next move), drop and hold from a height greater than one metre</li>
</ul>
leg page= good explanations<br><a href="http://www.brianmac.co.uk/legplymo.htm" target="_blank">http://www.brianmac.co.uk/legplymo.htm</a><br><br>
tri link for beginner program<br><a href="http://www.trainingsmartonline.com/images/Free_Triathlon_Articles/Triathlon_Plyometrics.pdf" target="_blank">http://www.trainingsmartonline.com/i...lyometrics.pdf</a>