A trainer coaches your squat while a physical therapist treats what hurts

Key takeaways

• Only 24.4% of Medicare patients who qualified for cardiac rehab in 2016 went to even one session. About a quarter of those who started finished the full course¹.
• Cochrane’s updated review of 107 trials, announced in September 2026, found that exercise-based cardiac rehab cut heart attacks by 28% and hospital admissions by 35%².
• Every state requires physical therapists to hold a license, and new therapists need a clinical doctorate. For fitness trainers, federal labor data list a high school diploma as the typical entry point⁹¹⁰.
• As of July 2025, every state allowed some form of direct access to a physical therapist, without a doctor’s referral. But 29 states attached conditions, such as time or visit limits⁸.
• Medicare has no hard yearly cap on therapy. In 2026, physical and speech therapy billed above $2,480 needs a code from the therapist confirming it is medically necessary and documented⁶.

In 2016, 366,103 Medicare patients qualified for cardiac rehabilitation after a heart attack, heart surgery or another heart problem¹. Cardiac rehab is a supervised program of exercise, education and counseling, prescribed by a doctor⁵.

Only 89,327 of them, about 1 in 4, showed up for even one session, a study led by Centers for Disease Control and Prevention (CDC) researchers found¹. Of those who started, just 26.9% finished 36 sessions¹.

That gap is costly. Cochrane is an independent network that pools medical research. In September 2026, it announced an updated review of 107 trials with 26,886 people with coronary heart disease². According to Cochrane’s summary, exercise-based rehab cut heart attacks by 28% and hospital admissions of any kind by 35%, and it probably reduces deaths².

A cardiac rehab gym has treadmills, bikes and light weights. So do physical therapy clinics and fitness studios. But wellness movement and rehabilitation are different services. This is how to tell them apart and choose.

Same squat, different job: wellness trains you, rehab treats you

Wellness movement is exercise you choose to stay fit, strong and calm: a trainer, a spin class, a yoga studio, a walking group. You set the goals and usually pay.

Rehabilitation treats a health problem. A licensed clinician examines you, names the problem and writes a plan. Under Medicare rules, that plan of care must list your diagnoses, measurable long-term goals, and the type, amount, length and frequency of treatment¹².

The U.S. Bureau of Labor Statistics (BLS) draws the same line. It describes personal trainers and group instructors as promoting general wellness, not necessarily managing chronic disease¹⁰.

	Wellness movement	Rehabilitation
Main goal	Fitness, enjoyment, prevention	Treat an injury, illness or disability and restore function
Who leads	Trainer, class instructor, coach	Physical therapist, therapist assistant, or a cardiac or pulmonary rehab team
Oversight	Varies; often a private certificate and employer rules	State license, plus insurer and Medicare rules9
Starting point	Your goals and a health questionnaire	An evaluation and a diagnosis
The plan	A program or class schedule	A written plan with measurable goals12
Who pays	Usually you	Often insurance, with copays or coinsurance13
When it ends	When you decide	When goals are met or skilled care is no longer needed7

Neither is better. Many people need both at different times.

Credentials decoded: a doctorate and a license, or a certificate

Physical therapists. Since January 2016, the doctor of physical therapy (DPT), a clinical doctorate, has been the minimum degree for physical therapy programs⁸. Programs typically take three years after college⁹. Every state licenses physical therapists, and earning a license means passing an exam. Some states add a law exam and a criminal background check⁹.

Athletic trainers. They typically need a master’s degree, and nearly all states license or certify them¹¹. They prevent, diagnose and treat muscle and bone injuries, working under a licensed physician’s direction¹¹. The BLS warns readers not to confuse them with personal trainers¹¹.

Clinical exercise physiologists. Most hold at least a four-year degree in exercise physiology or a related science, and employers usually expect current Basic Life Support certification¹⁰. They review a client’s medical history, run stress tests, track blood pressure and heart rhythm, and build exercise plans, often for people with chronic illnesses such as lung disease¹⁰. Louisiana requires them to be licensed, the BLS notes¹⁰.

Fitness trainers and class instructors. The BLS lists a high school diploma or the equivalent as the typical entry-level education¹⁰. The American Council on Exercise (ACE), which certifies trainers, tells them that diagnosing or treating an injury is generally outside their scope¹⁴.

That doesn’t make a good trainer less valuable. Trainers are prepared for a different job: coaching healthy bodies to get fitter.

Title you see	Typical training	Who oversees it	Diagnoses and treats?	A question to ask
Physical therapist (PT, DPT)	Doctorate, about 3 years after college89	State license, in every state9	Yes, within state law	“What’s my diagnosis, and how will we measure progress?”
Physical therapist assistant (PTA)	Varies	Works on a PT’s plan; Medicare pays 85% of the PT rate6	Carries out the PT’s plan	“Who is my supervising PT?”
Athletic trainer (AT)	Master’s degree11	Licensed or certified in nearly all states11	Yes, for muscle and bone injuries, under a physician11	“Which physician do you work under?”
Clinical exercise physiologist	Bachelor’s or master’s10	Licensed in Louisiana; otherwise varies10	No diagnosis; designs and monitors exercise10	“Will you share my results with my doctor?”
Personal trainer, class instructor	High school diploma typical, plus certificates10	Certifying group and employer	No, by ACE guidance14	“Which certification? Are you current on CPR?”

You can usually book a physical therapist yourself

As of July 1, 2025, all 50 states, the District of Columbia and the U.S. Virgin Islands allowed some form of “direct access,” according to the American Physical Therapy Association (APTA)⁸.

In 21 states, direct access is unrestricted⁸. The other 29 states, plus D.C. and the Virgin Islands, attach conditions, such as limits on time or number of visits, or a referral for specific procedures like spinal manipulation⁸.

Nebraska and California got there first by omission: their PT licensing laws, from 1957 and 1968, never required a referral. Maryland, in 1979, was the first state to pass a law granting direct access⁸.

State law is only one gate. Hospital policies can still require a referral⁸, and insurance plans may have their own rules. In Wisconsin, under 10% of patients used direct access at all but one of the hospitals that offered it⁸.

Is it safe to skip the doctor? APTA’s report gathers the evidence. A 2014 systematic review found no reported harms, license actions or lawsuits tied to direct access⁸.

A 2023 records study looked at 29,806 people with acute low back pain. Those who saw a PT first had 40% fewer imaging orders, 44% fewer opioid prescriptions and 40% fewer injections⁸.

Weigh that fairly. APTA is the profession’s own association, and many of the studies it cites are older or look back at records⁸. People who choose a PT first may also differ from those who don’t.

Medicare has its own rule. Since 2005, people with Part B can start therapy without first seeing a physician⁸. But a physician or other qualified practitioner must still sign off on the PT’s plan of care⁸¹². That certification is due within 30 days of the first treatment¹².

Medicare’s $2,480 line is a checkpoint, not a cap

You may have heard that Medicare caps physical therapy each year. It used to. The Bipartisan Budget Act of 2018, signed February 9, 2018, repealed the hard therapy caps⁶.

What remains is a dollar threshold, adjusted every year. For 2026, it’s $2,480 for physical therapy and speech therapy combined, and a separate $2,480 for occupational therapy⁶.

Above that line, your therapist adds a billing code called the KX modifier, which confirms that the care is medically necessary and documented⁶. Claims without it are denied, and Medicare may review some claims above $3,000⁶.

The usual Part B coinsurance and deductible apply to therapy¹³.

Medicare also doesn’t require you to keep improving. A 2013 court settlement in a case called Jimmo v. Sebelius confirmed that coverage “does not turn on the presence or absence of a beneficiary’s potential for improvement”⁷.

Therapy to maintain function or slow a decline is covered when it takes a therapist’s skills to do it safely⁷. That applies in skilled nursing facilities, home health and outpatient therapy⁷.

If you’re told therapy must stop because you’ve “plateaued,” ask whether the Jimmo standard was applied. Private plans set their own visit limits, so check yours.

Cardiac and pulmonary rehab are medicine’s most underused exercise programs

Medicare covers cardiac rehab for people who’ve had any of these⁵:

• a heart attack in the past 12 months;
• coronary bypass surgery, angioplasty or a stent;
• stable angina, which is chest pain from narrowed heart arteries;
• heart valve repair or replacement;
• a heart or heart-lung transplant;
• stable chronic heart failure with a weakened pump, after at least six weeks of standard treatment.

A doctor orders it. The program must include prescribed exercise, help changing heart risk factors, a check on mood and stress, outcome testing and a personal plan⁵. The standard course is 36 sessions⁵.

Supervision rules just changed. Under its 2026 payment rule, in effect since January 1, 2026, Medicare lets the supervising doctor or practitioner oversee cardiac and pulmonary rehab through live two-way video, not audio alone⁴. A Medicare contractor’s page from September 2025 still describes a supervisor who is present and immediately available, so ask how your program handles it⁵.

People in the Cochrane trials felt better, too, with gains in physical function, energy, social life and mental health². Programs delivered at home or with digital support looked about as effective as gym-based ones, though Cochrane calls that evidence suggestive². Women were scarce: just 17% of all participants².

Yet most eligible people never go. In the CDC-led study, 18.9% of eligible women attended, compared with 28.6% of men¹. Participation was 13.6% among Black patients and 13.2% among Hispanic patients, versus 25.8% among white patients¹.

A federal initiative called Million Hearts set a goal of 70% participation by 2022¹. A Million Hearts page updated in August 2025 still puts participation at fewer than 1 in 3 eligible patients³.

Pulmonary rehab is the lung version. Medicare covers it for moderate to very severe chronic obstructive pulmonary disease (COPD)⁵. Since January 2022, it also covers people whose breathing symptoms last at least four weeks after COVID-19⁵. Each session must include some aerobic exercise⁵.

If you qualify for either program, ask for the referral before you leave the hospital. In the CDC-led study, only about a quarter of participants started within three weeks of their heart event¹.

“Corrective” is a sales word outside a clinic

Fitness ads often borrow clinical language: “corrective exercise,” “posture correction,” “rehab class.” A word in an ad isn’t a credential. Ask what license, if any, stands behind it.

The best trainers know where their lane ends. ACE tells trainers to refer clients with a suspected injury to a physician and to get medical clearance¹⁴. Once a client finishes physical therapy, ACE advises trainers to get the therapist’s exercise recommendations and build them into the program¹⁴.

That handoff is where wellness movement shines. Rehab gets you to a safe starting point, and a skilled trainer or class can help you build from there for years.

Natural health values prevention, self-care and the body’s ability to heal. Good rehab shares those values. It treats with movement, education and coaching, and its goal is to make you independent with a home program you can keep doing.

Some of the newest cardiac rehab trials, from India and China, used yoga and tai chi as the exercise². Seeing a licensed therapist isn’t a betrayal of natural health. It’s a way to get the right movement, at the right dose, when your body needs more than a class can safely give.

Who should I see? A decision guide

This guide is our own, built from the scope and coverage rules above. A coming article covers in more depth when professional rehab is needed.

Your situation	Start with	What to ask
Healthy, no symptoms, want to get fitter	A certified trainer, a class or a walking group	“How will you adjust for my age and history?”
New pain or stiffness after a strain or fall	A physical therapist (direct access) or your doctor	“Do I need a referral in my state or plan?”
Recovering from surgery or a fracture	The PT on your surgeon’s plan	“What can I do at home, and when can I return to classes?”
Heart attack, stent, bypass, valve surgery or heart failure	Cardiac rehab	“Can you send the referral before I’m discharged?”
COPD, or breathlessness that lingers after COVID-19	Pulmonary rehab	“Do I meet Medicare’s criteria?”5
Diabetes or another chronic condition, and you want supervised exercise	A clinical exercise physiologist or a medical fitness program	“Will you work with my doctor?”
Finished rehab and want to keep going	A trainer or class that follows your PT’s home program14	“Can I share my discharge plan with you?”
Slow decline from a chronic illness	A PT, under maintenance therapy7	“Does the Jimmo standard apply to me?”

How strong is the evidence?

Claim	Evidence level	What it rests on
Exercise-based cardiac rehab lowers heart attacks and hospital admissions	Strong evidence	107 randomized trials with 26,886 people2
Cardiac rehab probably lowers the risk of death, too	Strong evidence	The same large review; Cochrane’s summary hedges with “probably,” which it doesn’t do for heart attacks2
Home-based or digital cardiac rehab works about as well as center-based	Promising but early	Cochrane calls the finding suggestive2
Seeing a PT without a referral is safe	Promising but early	Observational studies with no reported harms, compiled by the PT association8
Seeing a PT first for back pain cuts imaging and opioids	Promising but early	One large records study; people who choose PT may differ8
Trainer-led “corrective exercise” can stand in for a clinician’s diagnosis and treatment	Not enough evidence	We found no trials testing it, and ACE, a trainer-certifying group, says diagnosing and treating injuries is outside a trainer’s scope14

Questions readers ask

The bottom line

Wellness movement and rehabilitation can look alike, but they answer different questions. A trainer or class helps a healthy body get fitter. A licensed physical therapist or rehab team evaluates a problem, writes a plan and treats it, usually with insurance help.

If you have a new injury, a heart or lung event, or warning symptoms, start with the licensed side. If you qualify for cardiac or pulmonary rehab, go: it’s one of the best-tested exercise programs in medicine, and most eligible people miss it.

Related reading

• What rehabilitation covers, and why so many people skip it
• What the letters after a practitioner’s name mean
• What your provider is legally allowed to do
• Health coaching is real, unregulated, and easy to get wrong
• The first 10 minutes of exercise pay off most, so start slower than you think

Sources

1. Ritchey MD, Maresh S, McNeely J, et al. “Tracking Cardiac Rehabilitation Participation and Completion Among Medicare Beneficiaries to Inform the Efforts of a National Initiative.” Circulation: Cardiovascular Quality and Outcomes, 2020;13(1):e005902 (CDC Stacks). stacks.cdc.gov
2. Cochrane. “Cardiac Rehabilitation Cuts Hospital Admissions and Heart Attack Risk” (on Dibben G, Taylor R, et al., Cochrane Database of Systematic Reviews, CD001800.pub5). Cochrane news, September 18, 2026. cochrane.org
3. Million Hearts, U.S. Department of Health and Human Services. “Hospital-Specific Cardiac Rehabilitation Reports.” Updated August 26, 2025. millionhearts.hhs.gov
4. Centers for Medicare & Medicaid Services. “Medicare Physician Fee Schedule Final Rule Summary: CY 2026” (MLN MM14315). CMS, 2025. cms.gov
5. Noridian Healthcare Solutions (Medicare contractor). “Cardiac and Pulmonary Rehabilitation Programs.” JE Part B, updated September 16, 2025. med.noridianmedicare.com
6. Centers for Medicare & Medicaid Services. “Therapy Services: CY 2026 Therapy Services Updates.” CMS, revised February 2026. cms.gov
7. Centers for Medicare & Medicaid Services. “Jimmo Settlement.” CMS. cms.gov
8. American Physical Therapy Association. “The State of Direct Access to Physical Therapist Services.” APTA, June 2025. apta.org
9. U.S. Bureau of Labor Statistics. “Physical Therapists.” Occupational Outlook Handbook, 2025 data. bls.gov
10. U.S. Bureau of Labor Statistics. “Exercise Physiologists.” Occupational Outlook Handbook, 2025 data. bls.gov
11. U.S. Bureau of Labor Statistics. “Athletic Trainers.” Occupational Outlook Handbook, 2025 data. bls.gov
12. Noridian Healthcare Solutions (Medicare contractor). “Outpatient Therapy Certification Plan of Care.” JE Part B, updated September 8, 2025. med.noridianmedicare.com
13. Noridian Healthcare Solutions (Medicare contractor). “Outpatient Therapy.” JE Part B, updated April 16, 2025. med.noridianmedicare.com
14. Nitschke E. “How to Train a Client With Chronic Injuries.” American Council on Exercise, May 4, 2017. acefitness.org
15. Tsakirides C, Stavropoulos-Kalinoglou A. “Physiology Group Screening Process” (adapted from ACSM’s Guidelines for Exercise Testing and Prescription, 10th edition). Leeds Beckett University, July 2020. Www.Leedsbeckett.Ac.Uk