---
product_id: 1702486
title: "Core Strength for 50+: A Customized Program for Safely Toning Ab, Back, and Oblique Muscles"
price: "R$209"
currency: BRL
in_stock: true
reviews_count: 10
url: https://www.desertcart.com.br/products/1702486-core-strength-for-50-a-customized-program-for-safely-toning
store_origin: BR
region: Brazil
---

# Core Strength for 50+: A Customized Program for Safely Toning Ab, Back, and Oblique Muscles

**Price:** R$209
**Availability:** ✅ In Stock

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- **What is this?** Core Strength for 50+: A Customized Program for Safely Toning Ab, Back, and Oblique Muscles
- **How much does it cost?** R$209 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/1702486-core-strength-for-50-a-customized-program-for-safely-toning)

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## Description

desertcart.com: Core Strength for 50+: A Customized Program for Safely Toning Ab, Back, and Oblique Muscles: 9781612431017: Karl Knopf: Books

Review: 12 DAYS AND I ALREADY SEE A DIFFERENCE - I am in my upper 60s, and except for walking a lot, I am exercise averse. Never enjoyed exercise. Never actually felt better after exercise. To the extent I have exercised it was to achieve a goal, e.g., getting in shape to go on a kayaking trip. Well, you see I don't think of kayaking as exercising, I think of it as getting into places I could not otherwise go. So, I am not in great shape but I am thin. I give you this background information only to help you determine if this is a good book for you. There are many levels of exercises in this book and many different exercises at each level. You can choose between equipment free exercises and some minimal equipment exercises, e.g., using a balance ball. I started at the very lowest level with the lowest intensity and without any equipment. I did not expect much. The book told me not to expect too much too soon. But I knew I needed to strengthen my core and whatever I tried before was too hard and/or painful, e.g., pilates. No level of pilates seemed doable given my generally weak core. Mostly, my pot belly, in spite of the fact that I am thin, spoke to me and said I had to do something. I found this book quite by accident. The author's book on stretching for 50+ was advertised in my Tufts Nutrition Newsletter and I have found the books they advertise/recommend to be very helpful. Anyway to cut to the chase. I went out to do an hour's worth of yard clean up this weekend, which generally involves quite a bit of heavy lifting and this weekend was no exception. I expected to be in pain the next day as usual. I was not in the least bit of pain the next day. None. I can only attribute that to 12 days with this book using the lowest level, lowest intensity of exercise. Nothing else has changed. I also feel that I can carry significantly more weight. In addition I do not hate doing the exercises. I am very happy with this book.
Review: Very good information - I am 64 years old and my MD told me I need to work my core. The exercises are deceptively hard, but they start off easier and give you plenty of room to grow for a very long period of time. I don’t like doing core work, but I do enjoy this book and can already see improvement in my strength, I would highly recommend.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | 1612431011 |
| Best Sellers Rank | #226,299 in Books ( See Top 100 in Books ) #151 in Exercise & Fitness For the Aging #199 in Stretching Exercise & Fitness #322 in Aging & Longevity (Books) |
| Customer Reviews | 4.5 4.5 out of 5 stars (478) |
| Dimensions  | 7.5 x 0.29 x 9.25 inches |
| Edition  | 1st |
| ISBN-10  | 9781612431017 |
| ISBN-13  | 978-1612431017 |
| Item Weight  | 9.6 ounces |
| Language  | English |
| Print length  | 128 pages |
| Publication date  | January 31, 2022 |
| Publisher  | Ulysses Press |

## Images

![Core Strength for 50+: A Customized Program for Safely Toning Ab, Back, and Oblique Muscles - Image 1](https://m.media-amazon.com/images/I/71O3ua76uyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 12 DAYS AND I ALREADY SEE A DIFFERENCE
*by C***T on May 28, 2013*

I am in my upper 60s, and except for walking a lot, I am exercise averse. Never enjoyed exercise. Never actually felt better after exercise. To the extent I have exercised it was to achieve a goal, e.g., getting in shape to go on a kayaking trip. Well, you see I don't think of kayaking as exercising, I think of it as getting into places I could not otherwise go. So, I am not in great shape but I am thin. I give you this background information only to help you determine if this is a good book for you. There are many levels of exercises in this book and many different exercises at each level. You can choose between equipment free exercises and some minimal equipment exercises, e.g., using a balance ball. I started at the very lowest level with the lowest intensity and without any equipment. I did not expect much. The book told me not to expect too much too soon. But I knew I needed to strengthen my core and whatever I tried before was too hard and/or painful, e.g., pilates. No level of pilates seemed doable given my generally weak core. Mostly, my pot belly, in spite of the fact that I am thin, spoke to me and said I had to do something. I found this book quite by accident. The author's book on stretching for 50+ was advertised in my Tufts Nutrition Newsletter and I have found the books they advertise/recommend to be very helpful. Anyway to cut to the chase. I went out to do an hour's worth of yard clean up this weekend, which generally involves quite a bit of heavy lifting and this weekend was no exception. I expected to be in pain the next day as usual. I was not in the least bit of pain the next day. None. I can only attribute that to 12 days with this book using the lowest level, lowest intensity of exercise. Nothing else has changed. I also feel that I can carry significantly more weight. In addition I do not hate doing the exercises. I am very happy with this book.

### ⭐⭐⭐⭐⭐ Very good information
*by D***B on March 6, 2023*

I am 64 years old and my MD told me I need to work my core. The exercises are deceptively hard, but they start off easier and give you plenty of room to grow for a very long period of time. I don’t like doing core work, but I do enjoy this book and can already see improvement in my strength, I would highly recommend.

### ⭐⭐⭐⭐ Excellent Source For Core Strength
*by A***R on July 10, 2013*

The content is excellent. The writer uses an excellent format to rely the material efficiently. Although I'm in my forties, I chose this book because I felt I needed a gentle start-up program since I have not performed core exercises in some years. Pros: *Easy, effective exercises *Excellent tips on correct form *Easy to identify the levels *Options for exercises with or without props *I learned a lot from this author and felt the program was very doable. *The pictures are helpful and inspiring. *I enjoyed the excellent feedback about the various "props". Cons: *I read to the middle of the book the first time I opened it. On the first day, a large section of the book pages came unglued all the way across. I was very disappointed as this was a new book, just received from Amazon. *Font is very small even for my eyes and I don't wear glasses! (The kindle version may have been a better choice given these factors.) *Another reviewer mentions a lay flat design - my book ISBN 978-1-61243-101-7 is in paper format but does not lay flat. *There were several edit errors, which rather surprised me. *The book also had confusing instructions with reference to getting started as there was more than one "Level 1". It seems they could have combined both Level 1 pages to make it less confusing. The difference was only a couple of exercises w/ props but I had to flip back and forth and compare to figure out why more than one of the same level. Overall, I still consider this the best core reference book I've read out of many others. I would recommend this book to anyone with concerns of strains, pains, injuries, balance issues and/or just starting out. I am just a little frustrated my copy came apart so easily! If you have the ability to read Kindle on a decent size monitor, I recommend purchasing the Kindle version.

## Frequently Bought Together

- Core Strength for 50+: A Customized Program for Safely Toning Ab, Back, and Oblique Muscles
- Stretching for 50+: A Customized Program for Increasing Flexibility, Avoiding Injury and Enjoying an Active Lifestyle
- Weights for 50+: Building Strength, Staying Healthy and Enjoying an Active Lifestyle

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-11*