Strength is the Foundation: Getting Stronger Benefits Us All

Muscular strength is defined as the ability to exert a force on an external object or against some type of resistance. Strength may be expressed when hitting a baseball during sport or when standing up from a low chair during everyday life. Strength is required to press a loaded barbell overhead or strength may be needed to carry groceries from the car into the home. Optimizing strength across the lifespan can have profound effects on athletic performance, quality of life, health, and longevity.

Strength & Sports Performance

During sport, athletes exert large forces against gravity (i.e., sprinting or gymnastics), against an opponent (e.g., football) or when manipulating an object (e.g., throwing a baseball). Muscular performance can be a limiting factor in performing any of these athletic endeavors. Power refers to the rate at which force is produced. Stronger athletes produce more force and often do so in much less time. Power is associated with several important sport variables such as sprinting speed, jumping, change of direction, and throwing velocity. Improving muscular strength through resistance training is a sure fire way to improve power and subsequent sports performance.

An athlete’s ability to run, jump and change direction is crucial for success in most sports. Enhancing muscular strength improves these characteristics which often transfer to sport specific skills during competition. Stronger athletes jump higher and further than weaker athletes. Strength may be expressed when an athlete elevates for a rebound in basketball, jumps to spike a ball in volleyball, or dives to catch a ground ball in baseball. Athletes, who produce large forces on the ground, are able to jump higher and further than weaker athletes. This results in a true competitive advantage in many sports.

Stronger athletes are also able to accelerate running speeds over short distances. Elite athletes are able to produce greater forces, with short ground contact times, and with greater stride lengths compared to non-elite athletes. Evidence strongly suggests a correlation between maximal strength and running speed1. Athletes who produce greater amounts of force over a shorter period of time are able to change direction at greater velocities. This is important in basketball or football when attempting elude defenders. Becoming stronger is a no-brainer for any athlete looking to jump higher, run faster, or rapidly change direction during their sport. Lateral lunge variations are an excellent way to improve strength in the frontal plane where many athletic injuries occur.

Strength transfers to performance in both strength-power sports and endurance sports. Stronger cyclists are faster than weaker cyclists. Handball players with greater strength outperform weaker handball players. Stronger sprinters have faster 100-meter times than weaker sprinters. Stronger baseball players possess greater bat speeds and throwing velocities than weaker players. Strength alone does not ensure athletic success, but the evidence is compelling that stronger athletes possess a competitive advantage over weaker athletes in most sports.

Strength & Quality of Life

There has been a steady decline in fitness and muscular strength in children and youth across the world. Research shows greater muscular fitness in school-aged youth (4-19 years)is associated with improved body composition (e.g., decreased body fat), and improved risk factor profiles for heart disease and diabetes2. There is also strong evidence for a positive association between muscle strength and bone health and self-esteem in children2. Therefore, youth physical activity programs which promote muscular strength can have many benefits related to overall health and quality of life.

Sarcopenia refers to the age-related loss of muscle size and strength in older adults. Loss of muscle mass begins at approximately age 25 and progresses to a loss of 30% or more by the age of 80. Loss of muscle mass occurs primarily in type II muscle fibers which are highly responsible for muscle strength and power. Therefore, the rate and magnitude of strength loss usually exceed that of muscle mass by 2-5 times.

Age-related loss of muscle strength and bone mass (osteopenia) are associated with impaired functional mobility, compromised balance, and increased risk of arthritis, joint replacement surgeries, falls, and fractures. All of these factors can substantially diminish the quality of life. Nearly 20% of women and 10 % of men over the age of 65 cannot lift a 10-pound weight or kneel down on the floor. The age-related loss of strength is also associated with an inability to live independently and premature death3.

Maintaining muscle strength is a key strategy that leads to healthy aging. Sedentary behavior and physical inactivity are key drivers of sarcopenia and can accelerate the loss of muscle mass and strength. Maintenance of physical activity and engagement in a regular strength training program can diminish or even prevent these age-related changes. Pulling exercises or row variations are great for strengthening the upper body and core musculature.

The Importance of Strength for Optimal Health & Longevity

It is well-known that aerobic fitness is associated with decreased risk for chronic disease and premature death. The health benefits of exercise programs which target muscular strength is less known to the general public. A 2017 study published in the American Journal of Epidemiology showed resistance training reduced the risk of all-cause and cancer-related death to a greater degree than aerobic exercise4. There is now a growing body of evidence suggesting poor muscular strength is associated with death from all causes in both healthy and diseased populations

Another review in the European Journal of Internal Medicine reported a reduced risk for all-cause mortality with increased levels of muscular strength5. This association persists even after controlling for age, body fat, smoking, alcohol intake, medications, other health conditions, physical activity, and levels of cardiorespiratory fitness. Handgrip strength has been associated with survival and long-term outcomes in patients with cancer. Muscular strength has also been shown to be associated with long-term outcomes in patients with heart disease.

The health and mortality benefits of muscular strength appear to be related to multiple physiological mechanisms. This includes improved blood pressure, blood lipids, and body composition. Reduced systemic inflammation and reduction in insulin resistance have also been linked to improved muscular strength and mortality. Based on the available evidence showing a strong association with muscular strength and mortality, adults should perform muscle-strengthening exercises at least 2 days per week in order to reduce mortality risk. For most, basic lower body exercises such as squats and hip hinges are great places to start with a strengthening program.


We continuously perform activities during sport or our daily routine which require the expression of muscular strength. To a certain extent, muscular strength can be inherited. However, strength will never be optimized and will ultimately decline with age unless strength promoting exercises are undertaken. Optimizing or preserving muscular strength is strongly associated with improved sports performance, improved quality of life, improved physical function, reduced risk for chronic disease, and reduced risk for all-cause death. This should be sufficient evidence for all individuals, regardless of age or health status, to engage in some form of resistance training today.


  1.  Suchomel TJ, Nimphius S, Stone MH. The importance of muscular strength in athletic performance. Sports Med. 2016;46(10):1419-1449. doi:10.1007/s40279-016-0486-0.
  2. Smith JJ, Eather N, Morgan PJ, Plotnikoff RC, Faigenbaum AD, Lubans DR. The health benefits of muscular fitness for children and adolescents: A systematic review and meta-analysis. Sports Med. 2014;44:1209-1223. doi:10.1007/s40279-014-0196-4.
  3. McLeod M, Breen L, Hamilton DL, Philp A. Live strong and prosper: The importance of skeletal muscle strength for healthy aging. Biogerontology. 2016;17(3):497-510. doi:10.1007/s10522-015-9631-7.
  4. Stamatakis E, Lee I, Bennie J, et al. Does strength promoting exercise confer unique health benefits? A pooled analysis of eleven population cohorts with all-cause, cancer, and cardiovascular mortality endpoints. Eur J Intern Med. 2017; Ahead of P:1-37. doi:10.1093/aje/kwx345/4582884.
  5. Volaklis KA, Halle M, Meisinger C. Muscular strength as a strong predictor of mortality: A narrative review. Eur J Intern Med. 2017;26(5):303-310. doi:10.1016/j.ejim.2015.04.013.

Warm-Up to Optimize Training

Walk into any gym in the area and you are likely to see people who completely neglect the warm-up. Others spend 45 minutes or more on the foam roller, stretching with bands, or torturing themselves with lacrosse balls. So what is the deal with warming-up before a training session? The purpose of the warm-up is to prepare the body, mentally and physically, for the upcoming training session or for competition. When done properly, the warm-up can improve performance and in some instances, may lessen the risk of injury.

The positive effects of any warm-up are best achieved through an active form rather than passive or static stretching techniques. The positive effects of a warm-up can be achieved through temperature-related and non-temperature-related effects. Temperature-related effects include increased muscle temperature, core temperature, enhanced nervous system function, and improved connective tissue flexibility. Non–temperature-related effects include increased blood flow to muscles, improved oxygen consumption, and improved muscle contraction capabilities.

Other physiological and performance benefits of the warm-up include:

  • Faster muscle contraction and relaxation
  • Improvements in the rate of force development
  • Faster reaction time
  • Improvements in muscle strength and power
  • Lowered stiffness in muscles and joints
  • Improved oxygen delivery to working muscles
  • Increased blood flow to working muscles
  • Increased psychological preparedness

The Basic Components of an Effective Warm-Up

There are two basic phases to a well-designed warm-up before the start of a training session. These are the general warm-up and the specific warm-up. The general warm-up typically consists of 5 minutes of slow aerobic activity such as jogging, skipping, or cycling. The aim of this phase is to increase heart rate, blood flow, muscle temperature, respiration rate, and joint mobility. This phase is typically followed by a period of general stretching that aims to replicate the ranges of motion required for the upcoming training session. The specific warm-up

Typically incorporates movements similar to the movements of the athlete’s sport or training session. This should include rehearsal of the skill(s) to be performed. It is recommended the specific warm-up last 10 to 20 minutes with no more than 15 minutes between the end of the warm-up and start of activity (training session or competition).

The warm-up for a game or competition aims to maximize performance in the subsequent event. However, for the training session, in addition to optimizing acute performance during the session, the specific warm-up should contribute to the overall long-term development of the athlete. This is often an ideal time to incorporate individualized corrective exercise into an athlete’s program. For the baseball pitcher this may include rotator cuff activation exercises such as diagonal patterns with resistance bands.

Structuring the Warm-Up to Optimize Short and Long-Term Performance

Effective warm-ups should be thought of as an integral part of any training session, not as a separate entity.  Raise, Activate and Mobilize, and Potentiate (RAMP) is an acronym used to describe a more detailed structure for a warm-up2. This builds on the general and specific structure offering an approach which maximizes both acute and long-term performance.

Raise, refers to increasing the level of several physiological variables and the level of skill of the athlete. This phase is analogous to the general warm-up and aims to elevate body temperature, heart rate, respiration rate, blood flow, and joint mobility through low-intensity activities. General aerobic exercises, such as cycling or the elliptical trainer, are often inserted here. However, it is more beneficial to attempt to simulate the movement patterns of the upcoming activity or develop the movement patterns or skills the athlete will need to utilize within the sport. Instead of treadmill jogging before a squat session, the athlete can perform walking lunges to prepare physically and psychologically. In this way, the training session, from the start of the warm-up, is targeted at key movement patterns and skills and not just aerobic capacity.

Activating and mobilizing refers to the stretching component of a warm-up. Key movement patterns required for athletic performance in both the subsequent session and the athlete’s long-term development are performed. This might include corrective exercise for core stabilization or specific mobility. Static stretching may be incorporated as corrective exercise if specific deficits are identified. Baseball players can consider inserting static stretches for the lats, forearms, or rotator cuff. Any decrement in subsequent strength or power from static stretching is likely very short-lasting1.

Performing dynamic warm-up activities following static stretching will override any small transient performance decrements. The focus of mobility exercise is always on actively moving through a range of motion not static stretching. Dynamic stretching requires a combination of control, stability, and flexibility and more closely relates to the movement requirements an athlete will face in the training session or their sport. Dynamic stretches are extremely time-efficient compared to single muscle static stretches. Prior to overhead pressing with the bar, try warming-up with 20 reps of a door slide exercise or band external rotation to press.

Potentiation refers to the specific warm-up and focuses on the intensity of activities. This phase incorporates specific activities that progress in intensity until the athlete is performing at the intensity required for the training session. The potentiation phase is often omitted from training sessions. It is common to see an athlete proceed from a stretching exercise directly into their first working set of a squat or Olympic lift. This only compromises strength and power output.

There is strong evidence showing high-load dynamic warm-ups enhance subsequent power and strength performance3. The more power necessary for the exercise or activity, the more important the potentiation phase of the warm-up becomes. The objective is to include high-intensity dynamic exercises in order to prepare the nervous system.  Exercises which include short bouts of a high-intensity sprints, jumps or throws are ideal. Again, these warm-up exercises should be targeted to the upcoming session but also address the longer-term requirements of the athlete. A few sets of 2-3 plyometric jumps can be performed before getting under the bar for squats.


Many athletes or fitness enthusiasts are unaware of the optimal structure and performance benefits related to a proper warm-up. The RAMP protocol is a great foundation to structure any warm-up. More importantly, any properly designed warm-up should prepare the body for the subsequent training session and also assist in the long-term development of the athlete. If you are looking for performance gains for your next training sessions and the long-term, get serious about warming-up.


  1. Behm, D. G., Blazevich, A. J., Kay, A. D., & McHugh, M. (2016). Acute effects of muscle stretching on physical performance, range of motion, and injury incidence in healthy active individuals: A systematic review. Applied Physiology, Nutrition, and Metabolism, 41, 1–11.
  2. Haff, G.G., Triplett, N.T. (2016). Essentials of strength training and conditioning (4th ed). Champaign, Ill: Human Kinetics.
  3. McCrary, J. M., Ackermann, B. J., & Halaki, M. (2015). A systematic review of the effects of upper body warm-up on performance and injury. British Journal of Sports Medicine, 49, 935–942.

Resistance Training Reduces Injury in Youth Athletes

In our last article, we discussed the safety of youth resistance training. In addition to being safe for youth athletes, resistance training can also reduce injury and improve athletic performance. Resistance training has been shown to reduce injuries in adolescents who participate in football, soccer, basketball, and various other sports1-2. Adolescent females are especially vulnerable to knee injuries. Preseason conditioning programs that include plyometric training, resistance training, and jump training significantly reduce knee injuries in female athletes. Also, youth athletes who engage in regular resistance training recover quicker from injuries when they do occur.

When to Incorporate Resistance Training for Children

Youth athletes can benefit from developing fundamental movement skills (e.g., jumping, landing, and throwing) through appropriate fitness conditioning at early ages (6-10 years old). Once fundamental movement skills are mastered, appropriately supervised strength training programs can be initiated to reduce the likelihood of overuse injuries occurring during sport. Resistance training addressing specific risk factors associated with youth-sport injuries (e.g., low fitness, muscle imbalances, and training errors) reduce overuse injuries by as much as 50%1, 3. With early exposure to resistance training, young athletes may be able to prevent the development of deficits which predispose them to injury later in life.

Resistance Training for Youth Non-Athletes

Free-time physical activity among children and adolescents is on the decline. Strength training is beneficial for athletes and children who are not engaged in competitive sports. Physical inactivity is a risk factor for activity-related injuries in children. Youth who participate regularly in age-appropriate fitness programs, which include resistance training, may be less likely to suffer an injury.


Although the total elimination of injuries is unrealistic, appropriately designed conditioning programs that include strength training can help reduce the likelihood of sports- related injuries.  Clearly, incorporating resistance training supervised by qualified professionals is in the best interest of any young athlete looking to minimize risk for injury and improve performance. Our next article will discuss the role of resistance training for improving athletic performance.


  1. Faigenbaum, A., Kraemer, W., Blimkie, C., Jeffreys, I., Micheli, L., Nitka, M., & Rowland, T. (2009). Youth resistance training: Updated position statement paper from the National Strength and Conditioning Association. Journal of Strength and Conditioning Research, 23(5), S60–S79.
  2. Faigenbaum, A. D., & Myer, G. D. (2010). Resistance training among young athletes: safety, efficacy and injury prevention effects. British Journal of Sports Medicine, 44, 56–63.
  3. Lloyd, R. S., Faigenbaum, A. D., Stone, M. H., Oliver, J. L., Jeffreys, I., Moody, J. A., … Myer, G. D. (2014). Position statement on youth resistance training: The 2014 international consensus. British Journal of Sports Medicine, 48, 498–505.