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Power of 10: The Once-A-Week Slow Motion Fitness Revolution (Harperresource Book)

$42.88

Dresses Size Chart

Dress Size Chart (Inch)
DRESSES
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 34"-35"
S 2-4 33"-34" 26"-27" 36"-37"
M 6-8 35"-36" 28"-29" 38"-39"
L 10-12 37"-39" 30"-32" 40"-42"
XL 14 40"-42" 33"-35" 43"-45"
Dress Size Chart (cm)
DRESSES
SIZE IN CM
SIZE US / CAN BUST WAIST HIPS
XS 0 78.7-81.2 60.9-63.5 86.3-88.9
S 2-4 83.8-86.3 66-68.5 91.4-93.9
M 6-8 88.9-91.4 71.1-73.6 96.5-99
L 10-12 93.9-99 76.2-81.2 101.6-106.6
XL 14 101.6-106.6 81.2-88.9 109.2-114.3

Swimwear Size Chart

Dress Size Chart (Inch)
SWIMWEAR
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 33"-34"
S 2 33"-34" 26"-27" 35"-37"
M 4 35"-36" 28"-29" 37"-38"
L 6 37"-39" 30"-32" 39"-41"
XL 8 40"-42" 33"-35" 42"-44"

Shoes Size Chart

US EURO UK AUS JAPAN CHINA
5 35-36 3 3.5 21.5 35
5.5 36 3.5 4 22 35.5
6 36-37 4 4.5 22.5 36
6.5 37 4.5 5 23 36.5
7 37-38 5 5.5 23.5 37
7.5 38 5.5 6 24 37.5
8 38-39 6 6.5 24.5 38
8.5 39 6.5 7 25 38.5
9 39-40 7 7.5 25.5 39
9.5 40 7.5 8 26 39.5
10 40-41 8 8.5 26.5 40
11 41-42 9 9.5 27.5 41

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Power of 10: The Once-A-Week Slow Motion Fitness Revolution (Harperresource Book)

Power of 10: The Once-A-Week Slow Motion Fitness Revolution (Harperresource Book)

$42.88

Key Principles of the Power of 10 Method

Central to the Power of 10 philosophy is performing each repetition in a slow, controlled manner—about 10 seconds per rep (5 seconds up, 5 seconds down). This tempo eliminates momentum and keeps constant tension on the muscles, which, according to the authors, leads to greater strength gains and enhanced safety. Each workout comprises a single set of each exercise taken to momentary muscular failure. The book delves into the science behind the method, explaining concepts like muscle fibre recruitment, metabolic stress, and recovery. Additionally, it provides detailed exercise instructions and sample routines suited to various fitness levels.

How to Incorporate This Approach into Your Routine

The book guides readers in transitioning from conventional training to the once-a-week model. It includes advice on setting up a home gym or leveraging existing equipment, selecting exercises that target all major muscle groups, and progressing over time. Sample programs range from basic full-body workouts to more advanced splits. The authors stress the importance of proper form and controlled breathing. Readers appreciate the program's simplicity, which makes it easy to adhere to, even for those with packed schedules.

Understanding the Slow Motion Fitness Revolution

This book presents a strength training approach that challenges the norm of frequent workouts. Co-authored by Adam Zickerman and Bill Schley, with a foreword by Dr. F. C. Kornack, it promotes high-intensity, slow-motion resistance training performed only once a week. The method aims to maximize muscle stimulation while minimizing time spent exercising. Many readers have reported notable results and praised the programme's efficiency. Whether you're an experienced athlete or a beginner, this book provides a compelling alternative to daily workouts.

Safety and Proper Execution

As with any exercise regimen, safety is paramount. The slow tempo of Power of 10 reduces injury risk by eliminating rapid, jerky movements. However, the book emphasizes the need for a proper warm-up, gradual progression, and listening to your body. It also advises consulting a healthcare professional before starting, particularly for individuals with pre-existing conditions. The slow-motion technique allows for greater focus on form, but proper instruction is essential. Clear descriptions are provided, and the authors caution against overtraining despite the low frequency.

Frequently Asked Questions

Is one workout per week enough for gains?

According to the authors, a single weekly session of high-intensity, slow-motion training performed to failure can stimulate significant strength and muscle growth. The key is intensity, not volume.

Do I need special equipment?

No. The book includes exercises using free weights, machines, or bodyweight. Many workouts can be done with minimal equipment.

Is this method suitable for beginners?

Yes. The program can be adapted to any fitness level, and the slow tempo helps beginners learn proper form safely.

This book is a valuable resource for anyone seeking an efficient, scientifically grounded approach to strength training. Its once-a-week model offers a sustainable way to achieve fitness goals without spending hours in the gym.

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Things You Need to Know

Your payment and personal information are protected using industry-standard SSL encryption, and all payments are securely processed through Shopify-approved payment providers. Prices are displayed in Canadian dollars, and applicable taxes are calculated at checkout.

Orders are generally processed within 1–3 business days. Standard delivery to Canada usually takes 5–15 business days after dispatch. Delivery times are estimates and may be affected by carrier delays, customs processing, weather conditions or other circumstances outside our control. Tracking information will be provided when available.

Return requests must be submitted within 30 days of delivery. Vitamins, supplements and health products must be unused, unopened, sealed and returned in their original packaging. Opened products cannot be returned unless they were delivered damaged, defective or incorrect.

Customers are responsible for return shipping costs for unwanted or change-of-mind returns, and a restocking fee of up to 20% may apply. Damaged, defective or incorrect items must be reported within 48 hours of delivery and may qualify for a replacement or full refund.

Refunds are issued to the original payment method after the returned item has been received and inspected. Refund processing may take up to 7 business days. Before returning any product, please contact our customer support team for return authorization. Returns sent without prior approval may be delayed or rejected.

Approved returns must be sent to:

Return Address Fullfillonus #1202
1128 Lexington Ave, Bldg 4 E
Rochester, New York 14606
United States

Refused or unclaimed shipments may only be refunded after they are returned and inspected. Original shipping charges, return shipping costs, customs fees and carrier charges may be deducted from the refund where applicable.

Vitamin4CA.com is operated by Cloverlight LLC.

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