A 70-year-old should aim for at least 150 to 300 minutes of moderate-intensity aerobic activity per week, plus strength training two to three days per week. That works out to roughly 30 to 60 minutes of movement on most days, with rest days built in for recovery. The specific mix depends on your current fitness level and any existing health conditions, but the core recommendation holds for healthy older adults and those managing chronic conditions alike.
Weekly Aerobic Activity Targets
The World Health Organization’s 2020 guidelines recommend that adults 65 and older get 150 to 300 minutes per week of moderate-intensity aerobic activity. If you prefer more vigorous exercise, 75 to 150 minutes per week achieves comparable benefits, and you can mix moderate and vigorous activity throughout the week. “Moderate intensity” means you’re breathing faster than normal but can still hold a conversation. Brisk walking, cycling on flat ground, swimming, and water aerobics all qualify.
A practical way to spread this out: five days of 30- to 60-minute sessions. But there’s no rule that it has to be done in one block. Three 10-minute walks in a day count just as much as a single 30-minute walk. The key is consistency across the week rather than cramming everything into a weekend.
How to Gauge Your Intensity
Heart rate gives you one useful reference point. At age 70, your estimated maximum heart rate is about 150 beats per minute, and your target zone for moderate to vigorous exercise falls between roughly 75 and 128 beats per minute. A simple wrist check or fitness watch can tell you where you are.
If you don’t want to track heart rate, a perceived exertion scale works well. Rate your effort from 0 (resting) to 10 (maximum effort) based on how fast you’re breathing, how tired your muscles feel, and how much you’re sweating. Moderate exercise should feel like a 4 to 6 on that scale. If you’re barely noticing the effort, pick up the pace. If you can’t speak in short sentences, dial it back.
Strength Training: 2 to 3 Days Per Week
Muscle loss accelerates with age, and resistance training is the most effective way to slow it down. The National Strength and Conditioning Association recommends older adults strength train two to three times per week, targeting all major muscle groups. Each session should include one to two multi-joint exercises per muscle group (think squats, rows, chest presses, and leg presses) for two to three sets each.
What matters most is reaching a challenging intensity. The goal is to work at a level where the last few repetitions of each set feel genuinely difficult. Starting lighter and building up over weeks is perfectly fine, and working with a trainer initially helps you learn proper form and avoid injury.
Recovery between strength sessions is critical at 70. Your muscles and connective tissues typically need 48 to 72 hours to rebuild after a challenging workout, with research showing that experienced exercisers of all ages often need the full 72 hours to maximize their training response. This means if you do a full-body strength session on Monday, your next one should fall on Wednesday at the earliest, or Thursday for best results. Alternating strength days with aerobic days is a simple way to structure your week.
Why Strength Training Protects Your Bones
Bone density declines roughly 1.1% per year in the 70 to 79 age group, and that rate climbs to over 2% per year after 80. Resistance training doesn’t dramatically increase bone density on its own, but it does have a preventive effect, helping maintain what you have and reducing the risk of fractures. The benefit becomes more pronounced when you combine resistance training with weight-bearing activities like walking, dancing, or tennis. Studies show that this combination produces measurable improvements in bone density at the hip and spine, two of the most fracture-prone areas.
Balance Training for Fall Prevention
Falls are the leading cause of injury-related hospitalization for older adults, and balance training directly reduces that risk. Two sessions per week of dedicated balance work, around 30 minutes each, produces meaningful improvements over three months. Effective balance exercises include single-leg stands, heel-to-toe walking, stepping over obstacles, and exercises performed on uneven surfaces.
Progression is what makes balance training work. You start with exercises done with eyes open on a stable surface, then gradually advance to eyes closed, then add obstacles. Each step forces your body to recruit different stabilizing muscles and sharpen its reflexes. If you’re new to balance work, having someone nearby or using a wall for support keeps things safe while you build confidence.
Reducing Sedentary Time
Exercise sessions matter, but what you do between them matters too. Canadian 24-Hour Movement Guidelines recommend limiting total sedentary time to eight hours or fewer per day, with no more than three hours of recreational screen time. The most actionable piece: break up long periods of sitting as often as possible. Standing up, walking to another room, or doing a few stretches every 30 to 60 minutes helps maintain circulation, reduces joint stiffness, and supports the cardiovascular benefits you’re building through structured exercise.
A Sample Weekly Schedule
Here’s one way to organize all of these components into a realistic week:
- Monday: 30-minute brisk walk plus 20 minutes of strength training
- Tuesday: 30-minute swim or cycling session
- Wednesday: 30 minutes of balance exercises plus a 20-minute walk
- Thursday: 30 minutes of strength training plus 15 minutes of stretching
- Friday: 30-minute brisk walk or group fitness class
- Saturday: 30 minutes of strength training plus balance work
- Sunday: Light walking or rest
This template hits about 200 minutes of aerobic activity, three strength sessions, and two to three balance sessions. Adjust the duration and intensity based on where you’re starting. If you’re currently inactive, beginning with 10- to 15-minute sessions and adding five minutes per week is a safe, sustainable approach.
Signs You’re Doing Too Much
More exercise isn’t always better, especially if your body isn’t recovering between sessions. Watch for these signals that you need to scale back: persistent muscle soreness that doesn’t resolve within a couple of days, needing longer rest periods than usual, trouble sleeping, loss of motivation, frequent colds, or feeling more tired rather than more energized as weeks go on. Mood changes like increased irritability or anxiety can also signal overtraining. If several of these symptoms show up together, taking one to two full weeks of rest or significantly reduced activity usually resolves the issue.
Getting Started Safely
If you’re currently inactive and have a history of cardiovascular, metabolic, or kidney disease, getting cleared by your doctor before starting is a reasonable step. The same goes if you experience new symptoms like chest pressure, dizziness, or unusual shortness of breath when you increase your activity level. For people already doing some regular activity and feeling well, the biggest risk isn’t starting, it’s starting too aggressively. A gradual ramp-up over four to six weeks gives your joints, muscles, and cardiovascular system time to adapt without unnecessary strain.
The single most consistent finding across exercise research in older adults is that some activity is better than none. Even falling short of the full 150-minute weekly target delivers meaningful benefits for heart health, mobility, mood, and independence. Starting where you are and building slowly is the approach most likely to stick.