Durability for Life
Durability for Life is Practice Human's signature small group strength training course. Designed for women ages 65+ who want to feel more confident and capable in daily life and with more demanding physical activity.
Appropriate for those new to lifting weights and patients completing a physical therapy plan of care who will benefit from individualized feedback and guidance from a physical therapist for a safe transition into more robust exercise.
Classes are led by physical therapist and strength & conditioning coach, Dr. Caitlin Casella.

WHO IS THIS CLASS SERIES FOR?
Durability for Life is for you if…
- You have osteopenia, osteoporosis, knee and hip arthritis, menopause related joint pain, tendinopathy, or persistent low back pain
- You are a beginner with weights or still somewhat new to lifting and looking for an appropriately paced class
- You want to learn your way around the gym / how to use a variety of weight equipment
- You’re looking for a gradual introduction to the basic movement patterns for building whole body strength
- You're finishing up a physical therapy plan of care and looking for a strength-building program that bridges to gap between rehab and more robust physical activity
- You’re experiencing pain, mobility restrictions, or medical conditions that require a skilled physical therapist for appropriate modifications and pacing
- You’re looking for a bit of social engagement and peer encouragement. Training with friends is fun!

THREE SECTIONS START TUESDAY, SEPT 9 & THURSDAY, SEPT 11
Fall 2025 Durability for Life classes are divided into three sections. This class runs as a 8-week progressive series.
For those who have never attended this class, are new to strength training, or have taken this class and prefer to work at a slower pace...
— BEGINNER: Thursdays 11:00-12:00am EST, Sept 11, 18, 25, Oct 2, 9, 16, 23, 30
For those who have attended this class in the past, are lifting independently between classes, and are interested in progressing skills and weight…
— CONTINUING: Tuesdays 10:00-11:00am EST, Sept 9, 16, 23, 30, Oct 7, 14, 21, 28
— CONTINUING: Thursdays 10:00-11:00am EST, Sept 11, 18, 25, Oct 2, 9, 16, 23, 30
CLASS SIZE & LOCATION
All sections are limited to only 4 participants to allow for individualized feedback and support
LOCATION: In-person at Practice Human, 28 W 27th St, Room 704, New York City
** PLEASE NOTE: When you register below, you will have a choice to attend any of the three class sections. If you are unsure which section you should sign up for, please reach out via email to hello@practicehuman.com
REGISTRATION
One time payment for the 8 week series: $560
Registration is currently closed for the summer. These small group classes sell out in advance. Please add your name to the waitlist below to be the first to know when the next enrollment cycle opens for September 2025.
"In an attempt to stave off taking medication for osteoporosis, I decided to give strength training a serious try. I just completed my second series of strength training for women over 65 and am so grateful to Dr. Casella (and my yoga teacher who highly recommended her). The classes are small, extremely well organized, varied and fun!
Caitlin is very knowledgeable and I have total confidence in attempting new challenges under her supervision. Initially I had no idea what to expect but the series has been life changing - I feel stronger, more capable, and a great sense of accomplishment! I am committed to making strength training a priority from now on."
— BETSY K.
"I am so grateful for having found Dr. Caitlin Casella and Practice Human. I am about to start my second series of strength training for women over 65. I have had an osteoporosis diagnosis for years. With Caitlin’s class I already feel stronger, more energized and I find that I am sleeping so much better the night after a class."
— MICKI S.
"I am a real beginner when it comes to strength training. However, I knew the time had come that I must build my upper body strength. I spoke to Caitlin Casella over the phone, giving her my background and my need to become stronger. She was so clear and organized about her approach. She was also easy to laugh... another sign of a person I like to work with.
I cannot tell you how out of my comfort zone this was going to be for me. However, Caitlin helped me gain confidence and never lost patience with me. I feel so proud of myself.
I so recommend that you take Caitlin's classes at Practice Human. She is professional, kind, and explains every move and what that move does for your body. I will continue classes with her."
— THERESA L.