Archive for January, 2007
Neal Henderson MS CSCS First, most of the subjects in the studies that have evaluated concurrent strength and endurance (let’s simpify this to S-E training) have used initially sedentary subjects. To make the leap of faith that an untrained person will respond in a similar fashion to a highly trained (or even well-trained) endurance athlete is one that I’m not ready to make…are you? Second, most training studies have used very short durations of concurrent training such that there may not be the actual responses one would expect with either type of training. It has been shown that during the initial 8 weeks of strength training alone, the primary improvements in measured strength are due to improved neuromuscular firing and coordination - not in any real change in the muscle fibers’ ability to produce force. So, most studies 8-weeks long or less out shouldn’t even call themselves studies about strength training. We also know that endurance training changes can occur in 8-12 weeks, though it typically takes 4-6 months of consecutive training to reach peak endurance performance. To date, there has not been a study published that has utilized greater than 16-weeks of concurrent training - most ranged from 8-12 weeks. For me, I’d like to see what happens over 16-24 weeks to really have a firm grasp on what actually can and does happen. Another major problem with the existing research is that the strength protocols are standard 3 days per week with 3 sets of 10 repetitions performed doing movements that aren’t specific to the sport(s) being trained. Does anyone really believe that doing bench press is going to improve running performance? I guess if the running performance measured is the running of the bulls…then being able to push your fellow competitors out of the way and avoid getting gored could be a considered a benefit. In most other running contexts, I can’t think of any potential benefit of being able to push more weight with the upper body. Finally, very few studies of concurrent S-E training have actually measured endurance performance. As a physiologist and coach, I can say that VO2 max is not a measure of endurance performance…it is simply a measure of maximal aerobic activity. Last time I checked, I didn’t get a race time or place based off of my last VO2 max test value…I still had to swim, bike, and run and get to the finish line to have an actual endurance performance. It is possible to improve endurance performance without changing VO2 max…economy of movement is one aspect that few researchers have measured with S-E training. 1. Concurrent strength and endurance training can lower injury rate in runners. - Strength training does not only affect muscles - it can improve the strength and integrity of tendons. Having stronger tendons can be effective in reducing over-use injuries such as tendonitis. If you aren’t injured or don’t get injured as frequently, you are likely to be able to train more (and more effectively), which will likely make you faster over the long-term (if you are training effectively and recovering from your training). 2. Strength training will improve neuromuscular coordination and peak sprint power development. - This is more important for athletes competing in events that require some kind of sprint effort. Multisport athletes who qualify in this area would be: XTERRA athletes, elites racing in draft-legal format events, and athletes who dabble in road cycling - especially mass start events. If you’re an Ironman athlete, you shouldn’t be doing too much sprinting in training or racing…unless you’re doing it all wrong. 3. If you aren’t doing any endurance training, then strength training might maintain some level of endurance performance. - Don’t try this at home. Seriously, you are a multisport athlete who competes in endurance competitions. If you spend long periods of time not doing any endurance training…well, you won’t have much endurance. Sure, doing some strength training might keep you from losing all of your fitness gains…but you’d be better off not doing strength training and using that time to do some endurance training. 4. Know your limits. If you are already taxed by the amount of endurance training that you are performing, you likely will not see any benefit from added training of any kind. - Often times, endurance athletes need to initially decrease their training volume when adding strength training as the metabolic and mechanical demands on the muscles are considerable. It is extremely important to be doing the right kind of lifts or movements. Using poor mechanics or the wrong kind of strength training can lead you down the wrong road. Remember, train like an athlete - not like the beefcake or fitness model at the gym. Perform strength exercises that mimic the movements that you make while swimming, cycling, and running - specificity is important! So, remember - it’s all about making the choice based on your personal goals, abilities, and capacities. If you are thinking of adding strength training to your training routine, it’s usually best to start during your transition and base training phases. Be sure that if you do not have a background with strength training that you consult a strength and conditioning specialist who can help you devise an appropriate routine and teach you proper (and safe) mechanics for your movements. During periods of high endurance-specific training demand, be cautious with strength training. It’s usually better to go into maintenance mode for strength workouts once you get into the competitive season. Author Neal Henderson, MS CSCS is a USA Triathlon Elite certified coach and National Strength and Conditioning Association Certified Strength and Conditioning Specialist. He is the Sport Science Manager at Boulder Center for Sports Medicine and used to squat 500 pounds and power-clean 225 pounds as a high school athlete before turning to triathlon racing in college. Nader GA. “Concurrent strength and endurance training: from molecules to man.” Med Sci Sports Exerc. 2006 Nov;38(11):1965-70. Henwood TR, Taaffe DR. “Short-term resistance training and the older adult: the effect of varied programmes for the enhancement of muscle strength and functional performance.” Clin Physiol Funct Imaging. 2006 Sep;26(5):305-13. Glowacki SP, Martin SE, Maurer A, Baek W, Green JS, Crouse SF. “Effects of resistance, endurance, and concurrent exercise on training outcomes Harber MP, Gallagher PM, Creer AR, Minchev KM, Trappe SW. “Single muscle fiber contractile properties during a competitive season in male Smith DJ. “A framework for understanding the training process leading to elite performance.” Sports Med. 2003;33(15):1103-26. Review. Sporer BC, Wenger HA. “Effects of aerobic exercise on strength performance following various periods of recovery.” Leveritt M, Abernethy PJ, Barry B, Logan PA. “Concurrent strength and endurance training: the influence of dependent variable selection.” Balabinis CP, Psarakis CH, Moukas M, Vassiliou MP, Behrakis PK. “Early phase changes by concurrent endurance and strength training.” Izquierdo M, Hakkinen K, Ibanez J, Anton A, Garrues M, Ruesta M, Gorostiaga EM. “Effects of strength training on submaximal and maximal endurance performance capacity in middle-aged and older men.” Berg K. “Endurance training and performance in runners: research limitations and unanswered questions.” Osteras H, Helgerud J, Hoff J. “Maximal strength-training effects on force-velocity and force-power relationships explain increases in aerobic performance in humans.” Deschenes MR, Kraemer WJ. “Performance and physiologic adaptations to resistance training.” Hoff J, Gran A, Helgerud J. “Maximal strength training improves aerobic endurance performance.” McCarthy JP, Pozniak MA, Agre JC. “Neuromuscular adaptations to concurrent strength and endurance training.” Bastiaans JJ, van Diemen AB, Veneberg T, Jeukendrup AE. “The effects of replacing a portion of endurance training by explosive strength training on performance in trained cyclists.” Reynolds KL, Harman EA, Worsham RE, Sykes MB, Frykman PN, Backus VL. Hoff J, Helgerud J, Wisloff U. “Maximal strength training improves work economy in trained female cross-country skiers.” Paavolainen L, Hakkinen K, Hamalainen I, Nummela A, Rusko H. “Explosive-strength training improves 5-km running time by improving running economy and muscle power.” Bentley DJ, Wilson GJ, Davie AJ, Zhou S. “Correlations between peak power output, muscular strength and cycle time trial performance in triathletes.” Tanaka H, Swensen T. “Impact of resistance training on endurance performance. A new form of cross-training?” McCarthy JP, Agre JC, Graf BK, Pozniak MA, Vailas AC. “Compatibility of adaptive responses with combining strength and endurance training.” Marcinik EJ, Potts J, Schlabach G, Will S, Dawson P, Hurley BF. “Effects of strength training on lactate threshold and endurance performance.” Tursky EA. “Muscle training: physiology and practical applications of training for strength versus endurance.” Hortobagyi T, Katch FI, Lachance PF. “Effects of simultaneous training for strength and endurance on upper and lower body strength and running performance.” Paavolainen L, Hakkinen K, Rusko H. “Effects of explosive type strength training on physical performance characteristics in cross-country skiers.” Hakkinen K, Mero A, Kauhanen H. “Specificity of endurance, sprint and strength training on physical performance capacity in young athletes.” Hickson RC, Dvorak BA, Gorostiaga EM, Kurowski TT, Foster C. “Potential for strength and endurance training to amplify endurance performance.” Dudley GA, Djamil R. “Incompatibility of endurance- and strength-training modes of exercise.”
By Dave Scott Have you ever wondered why you can, at times, train like a demon but race like a sloth? You’ve seemingly done all of the preparation, but come race day, your confidence fades and your performance is dreadful. So what went wrong? Are you mentally soft, emotionally fragile? Physically, has your taper just plain backfired? Let’s not answer these questions right away. Instead, let’s take a look at the factors that will ultimately determine the success of your performance-whether you have one final race left this season (or if you’re racing a winter tri or single-sport event) or just want a bit of time to think things through and get it right before next season. Sharpening and tapering for your key races should include a checklist of items to eliminate the guesswork. For a race of four hours or less your checklist must address these key areas: 1. Physical factors Physical factors So what does intensity really mean? The total percentage of faster-paced efforts should be around 8 to 20 percent of your total workout time per week for each discipline: swim, bike, run. For example, you may ride three times per week for a total of six hours. Within this six-hour timeframe, up to 20 percent should be at a higher intensity: 8 to 20 percent of 360 minutes equals 29 to 72 minutes. Follow a similar formula for all three disciplines. Spread these high-intensity minutes over the three days by including repeats or steady tempo sessions at your optimal race pace. A sample workout could include: 7 x 4 minutes (8 percent) or 8 x 9 minutes (20 percent). Perform each repeat at a pace comparable to your previous higher-intensity training sessions. Elevating the percentage of your training that’s high-intensity or raising the intensity higher than it’s been in previous sessions will only lead to fatigue on race day. Rule two: Drop your total weekly training time as per the following schedule: Rule three: Throughout the taper, do at least 15 to 25 minutes of aerobic intensity training two to three times per week per discipline. The aerobic heart rate allows the morphine-like endorphins to hit your system. This feel-good emphasis is vital during the taper. Stimulating your muscles and breathing rate to a broken conversation pace alleviates anxiety, and the sessions will remind your mind and body that you did a workout. These aerobic sessions can be mixed in with the above higher-intensity sessions or completed on another training day. For example, if you have a higher-intensity block on the bike designated for your Tuesday session, you could warm up for 15 to 20 minutes, then insert the higher-intensity block followed by the aerobic work and finish with a cool-down of five to 10 minutes. This workout may be a bit long for some, in which case my advice is to insert the aerobic block on a non-intensity day. Let’s take a look at week four for an athlete preparing for an Olympic-distance race. Training time per week could look like this: Based on the above then, the higher-intensity (HI) training (i.e., 8 to 20 percent of the total weekly time) would look like this: Psychological and emotional Rule two: Decide what you can control in your race and determine how you’re going to do it. This requires you to have a mental map of the racecourse. Learn the course, either by viewing it online or discussing it with others. In a best-case scenario, view the course first-hand during the final days leading up to the event. Rule three: Controlling your emotions will alleviate your anxiety about the race. Recognize what you do well and decide how these skills will guide you during the race. Also, minimize the stressors in your daily routine and take comfort in the routines that provide a psychological and emotional lift to your race preparation. While I was preparing for the Ironman in 1994 I was advised by a sport psychologist to focus only on those things I was able to control and let go of everything else. This allowed me to avoid wrestling with the mundane psychological turmoil that could have hampered my final sharpening for the race. Rule four: Select three alternative goals for your race and write these down. • Level 1 is a solid race. The race may unfold with a few hurdles, but you will overcome these diversions. Nutrition Rule two: Practice eating your pre-race meal one time per week before your higher-intensity workouts. Rule three: Plan out your race nutrition. Break your total fluid and calorie intake down into measurable goals for every 10 to 15 minutes of racing. Rule four: Increase your intake of antioxidant foods and glutamine to combat any potential illness over the final four weeks. Try to select four to six servings per day of antioxidant fruits and/or vegetables. Glutamine is primarily stored in the lungs and skeletal muscle. Athletes that are prone to infections, allergies and slower recovery quite often have low plasma glutamine levels. If this is you, consider taking a glutamine supplement of 10 to 20 grams four times per week during the taper. Race awareness Lastly, do what you can do in the moment. Concentrate on the short term. Use the skills that allowed you to peak for the event. Confidence, tenacity and perseverance will prevail, so just let it happen. Dave Scott is a six-time Ironman world champion and the first inductee into the Ironman Hall of Fame. Today, Dave continues to live up to his reputation as “The Man” through his many speaking engagements, sport clinics and race-sponsored activities. He currently trains several top-10 Ironman professionals and age-group triathletes and recently completed a DVD on nutrition called The Art and Science of Fueling, for Pre-, During and Post-Endurance Training and Racing, available at davescottinc.com
By Matt Russ Before you begin your training for the day you should ask yourself one question: “What is the specific purpose of this workout?” If you do not know the answer, then it is likely the value of the workout will be equally in doubt. In order for your fitness to improve, you must place a new stressor on your body and then allow yourself to recover from it. If it is the same amount of physical stress, or less, or if recovery does not occur, then overload will not take place. Fatigue is not necessarily a good indicator of progress, either. If you begin a workout fatigued, sore and generally tired and then go through the motions, you are only breaking your body down further and delaying recovery. Being tired does not in any way mean that you are getting faster. When I examine an athlete’s training plan for the first time I usually find a lot of junk miles. These are the miles that do not really have a specific purpose but are there because the athlete feels they need to train that day. The junk workout is almost always general in format and redundant. Often this time would be better spent recovering or performing a shorter, more specific workout that targets a particular limiter. Do not confuse hours with quality training. Your long workout addresses a particular fitness substrate: endurance. Endurance is very important, even the most important fitness substrate for long events, but it is certainly not the only one. Define the purpose Before you choose your workouts you should identify your fitness limiters and your goals for the season. Are you a weak climber? Does your economy and form need work? Do you lack power in the flats? What sport do you need to spend the most time addressing? Your workouts should address these questions specifically. Now think about your goals and peak race(s). When is your race? What is the racecourse like? Where will your weakness be? The answers to these questions should largely determine how your training plan builds out. Now that you know what to target, you must choose the right workouts at the right time. If you are an underpowered cyclist, strength training during your base phase will help increase force production. In consideration, you will have to lower your weekly saddle hours as you spend more training time in the gym. If you are a weak swimmer, spend time correcting your stroke. This may mean reducing the run and bike on some weeks as you spend more time in the water or with a coach. Realize that a general plan will not address your needs specifically. In order to reach your true potential you may need a plan that is as unique as you are. Training requires energy There is always a compulsion to do more. This is a natural impulse, but adding in a workout that has no real purpose can work against you. When your body is broken down and you are training simply because you feel you have to, it is non-productive. Resist that compulsion to throw random workouts in that may impair recovery. Only train with purpose. Don’t confuse quantity with high-quality training. The athlete that trains 15 hours of random miles per week is not as effective as the athlete training 10 hours of directed and specific training. This athlete targets strength, power, aerobic capacity, endurance, or anaerobic endurance, in the right mix, at the right time. Matt Russ has coached and trained elite athletes from around the country and internationally for over 10 years. He currently holds expert licenses from USA Triathlon, USA Cycling and is a licensed USA Track and Field Coach. Matt is head coach and owner of The Sport Factory and works with athletes of all levels full time. He is a freelance author and his articles are regularly featured in a variety of magazines and Web sites. Visit www.thesportfactory.com for more information, or e-mail him at coachmatt@thesportfactory.com.
Bill Nadeau, MS Tri to eat like a Kenyan What is the Kenyan diet? Basic, but rich! So you should go to the store and buy ugali? The Kenyans ingested about 76.5% of their total daily calories from carbohydrate, such as ugali, vegetables, and other starches, which equated to 10.4 grams per kg of body weight per day or in total about 600 grams per day. Experts recommend endurance athletes consume about 7-12 grams of carbohydrate per kg body weight per day (for moderate to heavy training intensities). The Kenyans were right on the mark. About 13.4% of their total calories came from fat, with most of these fat calories from milk. Finally, about 10.1% of their total calories came from protein, such as beef and milk, which equated to 1.3 grams per kg of body weight per day or in total about 75 grams per day. Experts recommend endurance athletes consume about 1.2-2.0 grams of protein per kg per day. Again, the Kenyans were right on. That’s a lot of carbs. Should triathletes really eat that much carbs? What about the Kenyan’s fat intake? Shouldn’t you eat more protein to gain strength? Kenyans are runners and I’m a triathlete. Would it work for me? There are several noteworthy aspects of the Kenyan diet that can be advantageous for triathletes. - They always ate within one hour post-workout to promote muscle repair and replenish glycogen stores.
Conclusion William J. Nadeau, Jr. (Bill) earned a Bachelor of Science from Bowdoin College in 1998 and a Masters of Science from the University of New Hampshire in microbiology in 2001. Currently, Bill is a pursuing his second Masters in nutrition at Boston University and aims to become credentialed as a Registered Dietitian. He is also a sports nutritionist for www.trismarter.com.
Go Broncos! This is outstanding, a tribute to the greatest game ever played / click on the pic below and enjoy…
|