Liz Baker Plosser explains why strength training belongs in every routine

Strength training is not a niche add-on

Liz Baker Plosser’s pitch is straightforward: strength work deserves a place in the same weekly plan as walking, cardio, and recovery. Plosser, a NASM-certified trainer, former editor-in-chief of Women’s Health, and the voice behind the wellness newsletter Best Case Scenario with Liz Plosser, frames resistance work as a practical health habit rather than a fitness identity. That matters because the payoff is not just stronger muscles, but better movement, sturdier bones, and a body that holds up more reliably over time.

Public-health guidance backs that view with a simple baseline. The Centers for Disease Control and Prevention says adults should aim for 150 minutes of moderate-intensity physical activity each week, plus muscle-strengthening activity on at least 2 days. The CDC also says those strengthening sessions should involve all major muscle groups, which makes strength training a whole-body responsibility rather than a single-machine workout.

The minimum effective routine is smaller than most people think

The most useful lesson for intimidated beginners is that strength training does not have to dominate the week to matter. Two sessions is the public-health minimum, and that minimum is designed to be realistic enough to repeat. If your schedule is tight, the goal is not perfection; it is consistency, because the health benefits accumulate when strength work becomes routine.

The American Heart Association places strength and resistance training alongside endurance, balance, and flexibility as one of the four major exercise types. That framing is important because it shifts strength training from optional to structural: it is part of the full system that keeps the body fit and healthy. Variety is not a bonus here. It is the point.

Why the payoff grows with age

The National Institute on Aging says researchers have been studying the effects of strength training for more than 40 years, and the evidence base is broad. For older adults, the agency says strength training can help maintain muscle mass, improve mobility, and increase healthy years of life. It can also help keep bones healthy and improve how the body processes food, which can lower the risk of diabetes and related diseases.

Those benefits are not abstract. CDC and NIA materials both emphasize that strength training can help older adults maintain independence, mobility, balance, coordination, and bone integrity. In plain terms, it supports the movements that define everyday life: getting up from a chair, carrying groceries, climbing stairs, and staying steady on your feet.

Cardiovascular health is part of the story too

Strength training is often sold as a muscle-building tool, but the cardiovascular angle is increasingly important. A 2023 American Heart Association scientific statement concluded that resistance training can improve or maintain muscle mass and strength and has favorable effects on cardiovascular health and risk factors. That puts it firmly inside the broader health conversation, not off to the side as a specialty workout.

For ordinary readers, that means strength work is not competing with heart health. It contributes to it. Combined with the CDC’s 150-minute weekly activity target, resistance training supports a more durable baseline of fitness than cardio alone can deliver.

How to start safely when you are short on time or equipment

The CDC’s guidance gives beginners a clear target: meet the 2-day strength goal by working all major muscle groups. That can be done with little more than body weight, a few resistance bands, or light dumbbells, especially at the start. The key is to keep the routine simple enough that you can repeat it without needing a full gym setup or a long block of time.

A sensible entry point is to focus on controlled movement, moderate effort, and repeatability. The goal is not to exhaust yourself on day one. It is to build a habit that touches the whole body and grows gradually as confidence and coordination improve.

• Start with 2 nonconsecutive days a week so your body has time to recover.
• Keep the session brief enough that you can finish it even on a busy day.
• Work the whole body, not just the legs or arms.
• Choose movements you can do with steady form before adding more resistance.
• Stop a set before your technique breaks down.

Common mistakes that make strength training feel harder than it is

One of the biggest mistakes is treating strength training like a test of toughness. That mindset can lead people to skip it altogether, or to overdo it and quit after a bad first experience. The better approach is to treat it as a repeatable health practice, the same way you treat brushing your teeth or going for a walk.

Another common error is leaving out major muscle groups. The CDC is explicit on this point: strengthening work should involve all major muscle groups. That balance matters because a routine that only trains one area can leave gaps in posture, stability, and everyday function. A third mistake is waiting for the perfect program or the perfect equipment. The research-backed target is much simpler than that, and the more accessible the setup, the more likely it is to stick.

Why this belongs in every routine, not just a fitness phase

Plosser’s appeal is partly cultural and partly practical. She speaks to readers through a wellness newsletter with thousands of subscribers, but the underlying message is not about chasing trends. It is about building a routine that protects long-term function. Strength training fits that mission because it supports the muscles, bones, mobility, and metabolic health that determine how well you move through the decades.

For readers who feel intimidated by the gym, the most reassuring fact may be this: the health system itself already says you do not need to do everything. You need 150 minutes of moderate activity each week, 2 strength sessions, and a plan that reaches the whole body. That is a manageable standard, and it is one of the clearest investments you can make in aging well.