Muscles, metabolism, and health: benefits of strength training
Designing your muscle-strengthening plan
Please remember:
The information in this presentation is general information. It is not intended to include specific instructions for individuals. Please ask your healthcare provider for personalized guidance!
If you have heart, metabolic, or kidney disease or are over 45 years old and have 2 or more risk factors (immediate family member with heart disease before age 55, cigarette smoking, high blood pressure, abnormal cholesterol levels, diabetes, sedentary lifestyle, or obesity)
What Is Strength Training?
Strength training is also known as muscle-strengthening activity/exercise or weight training. It’s a form of exercise that uses resistance to make your muscles work harder than they do in daily life. This resistance causes micro-tears in the muscle, which heal and grow back stronger.
Recommendations for strength training or muscle strengthening exercise are in addition to recommendations for aerobic exercise.
Aerobic exercise: at least 150 minutes per week of at least moderate intensity. Anything that gets your heart pumping faster counts.
Muscle-strengthening exercises: at least 2 days per week on non-consecutive days. Choose activities that make your muscles work harder than usual
Remember that if that’s more than you can do right now, do what you can. Even 5 minutes of physical activity has real health benefits.
Percent Meeting Physical Activity Guidelines
Activity Guideline Status
Percentage of Adults Meeting Guidelines
Aerobic Only
47%
Strength Only
28%
Both Aerobic and Strength
24%
Benefits of Resistance Training
Health Category
Resistance Training Benefits
Skeletal & Joint Health (MSK)
Improves bone mineral density and bone strength
Alleviates joint pain and manages arthritis symptoms
Enhances flexibility, mobility, and range of motion
Muscular & Neuromuscular
Increases muscle mass and muscle strength
Optimizes neuromuscular function
Improves balance and coordination
Metabolic & Blood Sugar
Lowers blood glucose levels
Enhances insulin sensitivity
Aids in the prevention and management of Type 2 diabetes
Resistance Training and Diabetes Risk
Resistance training helps lower risk of diabetes. In one study, each 60 minutes per week of muscle-strengthening exercise was linked to a 13% lower risk of type 2 diabetes. These are reasons why muscle-strengthening exercise can support blood sugar.
Improves body composition with more muscle mass - raising metabolism and fat loss
Increases glucose uptake by muscle cells even without insulin - reducing the need for insulin
Increases insulin sensitivity - leading to lower blood sugar
Muscle Mass Decreases with Aging and Weight Loss
Skeletal muscle tissue—being the first site for glucose and triglycerides disposal—decreases by 3–8% every decade after the age of 30. Muscle power and performance decline. Resistance exercise can help slow the rate of muscle loss. It can also help delay the onset of disability.
Muscle mass also decreases with weight loss. Typically, weight lost during weight loss is 25% muscle and 75% fat. Here are ways to try to shift that ratio to lose more fat compared to muscle.
Strength training
Consuming enough protein
Losing weight at a slower rate
Engaging in regular aerobic activity
Designing a Muscle-Strengthening Plan
Here are considerations for a resistance training plan.
Consideration
Guidelines & Key Concepts
Frequency
Aim for 2-3 times per week
Target each major muscle group
Schedule workouts on non-consecutive days to allow for recovery
Intensity
Refers to how heavy the resistance (weight) is
The chosen resistance should ensure that the target muscle groups tire by the end of the set
Sets and Reps
Standard goal is 8-12 "reps" per set, for 2-3 sets total
Offers user-friendly exercise videos and clear descriptions demonstrating correct form. Programs require no special equipment and feature a variety of resistance types.
A comprehensive exercise library that allows users to search for movements by specific body part, type of resistance, and level of difficulty to ensure safe progression.
An expert-curated exercise library providing broken-down movement tutorials and videos to help individuals understand and maintain proper technique.
Ask your provider which resources are appropriate for you
Compound (Multi-Joint) Exercises Burn More Calories
Here are some examples.
Upper Body
Core
Lower Body
Push-ups
Pull-ups
Shoulder Press
Planks
Superman
Bird Dog
Squats
Lunges
Deadlifts
Track Your Progress
Here’s an example.
Exercise
Sets
Weight
Target Reps
Rest
Notes
Squats
2
45-lb barbell
15
1 minute
Set 1: 20 reps, Set 2: 18 reps
Push-ups
2
Body weight on an incline
Work for 30 seconds
1 minute
Set 1: 12 reps, Set 2: 10 reps
Walking lunges
2
15-lb dumbbell
Lunging for 50 ft
1 minute
50 feet per set
Inverted row
2
Body at a 45° angle
15
1 minute
Set 1: 15 reps, Set 2: 14 reps
Lark Can Help!
If you have a Fitbit: sync it with Lark
Give the Lark app permission to access Google Fit or Apple Healthkit if you use other devices (like an Apple watch)
Answer any questions from Lark about moderate-to-vigorous exercise minutes
Enter your workouts manually in the app
After this webinar…
Motivation! - Identify why you want to strength train
Identify when and where you can strength train, and what equipment you can use
Ask for help finding exercises and learning proper form
References
U.S. Department of Health and Human Services
Physical Activity Guidelines for Americans, 2nd Edition
Moore SC, Patel AV, Matthews CE, Berrington de Gonzalez A, Park Y, Katki HA, Linet MS, Weiderpass E, Visvanathan K, Helzlsouer KJ, Thun M, Gapstur SM, Hartge P, Lee IM. Leisure time physical activity of moderate to vigorous intensity and mortality: a large pooled cohort analysis. PLoS Med. 2012;9(11):e1001335. doi: 10.1371/journal.pmed.1001335. Epub 2012 Nov 6. PMID: 23139642; PMCID: PMC3491006.
Majid et al., 2021
Grøntved et al., 2012
Cannataro R, Cione E, Bonilla DA, Cerullo G, Angelini F and D'Antona G (2022) Strength training in elderly: An useful tool against sarcopenia. Front. Sports Act. Living 4:950949. doi: 10.3389/fspor.2022.950949
D’Antona Sports Act. Living 4:950949.
Hemsfield Obes Rev. 2014 Jan 22;15(4):310–321
Hunter GR, Byrne NM, Sirikul B, Fernández JR, Zuckerman PA, Darnell BE, Gower BA. Resistance training conserves fat‐free mass and resting energy expenditure following weight loss. Obesity. 2008 May;16(5):1045-51.