Pros/Cons: Inexpensive. Requires some instruction on how to properly use block.
Product: Resistance Bands
Cost: $39.99 for set of four @ amazon.com
What it is: Stretchy bands are a compact alternative to dumbbells. Come color-coded with different strength/resistance intensity.
Pros/Cons: Lightweight; good for travel. Requires adjustment of length to perform certain exercises. Some have ergonomic handles.
Product: P90X Extreme Home Fitness System
Cost: $119.95 @ beachbody.com
What it is: 90-day fitness and nutrition plan with structured workout, meal and supplement regimen using yoga blocks, resistance bands, chin-up bar. Used by Demi Moore and Ashton Kutcher. Encourages "muscle confusion" to avoid fitness plateau. Hard core; not for the weak. Comes with three-phase eating plan and 12 DVD training routines.
Pros/Cons: "People get their money's worth," says Adam Campbell, fitness director, Men's Health magazine. Daily commitment required w/ hour-plus workouts.
Product: SelectTech Dumbbell
Cost: $399 to $599 per pair @ bowflexselecttech.com
What it is: Adjustable weight dumbbell. User sets dial to needed weight and unit picks up appropriate poundage.
Pros/Cons: Space-saving; can replace up to 17 sets of weights. Adjusts from 5 pounds to 52.5 pounds or 10 pounds to 90 pounds, depending on model. Expensive compared with some traditional weight sets.