Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.
x
Sorry, Something went wrong!
Knee Ability Zero
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 25, 2026 6:55 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- 📈Prices have been moving higher lately — waiting risks paying more if that momentum continues.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
2.29/22
Market Standing
2.32/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
Agarta USA
🚚 Shipping
Free Shipping
⚙️ Specifications
ASIN
B09KNGDYGL
Publisher
Onyx publications LLc
Publication date
November 1, 2021
Language
English
Print length
98 pages
ISBN-13
979-8985135800
Item Weight
6.7 ounces
Dimensions
6 x 0.24 x 9 inches
Best Sellers Rank
#13,449 in Books (See Top 100 in Books) #3 in Physical Medicine & Rehabilitation (Books) #6 in Exercise & Fitness Injury Prevention #16 in Exercise Injuries & Rehabilitation
Customer Reviews
4.7 4.7 out of 5 stars (3,925) var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } } ); } }); P.when('A', 'cf').execute(function(A) { A.declarative('acrStarsLink-click-metrics', 'click', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount") || 0) + 1); } }); });
Sold By
Amazon.com