Sports and Exercise Medicine for the Pharmacist Eric J. Jarvi, Ph.D. Associate Dean and Professor Husson University School of Pharmacy Physiological Effects of Exercise on Cardiac Output Increased sympathetic stimulation Contraction of muscles around vessels Dilation of resistant vessels in muscles Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 2 Physiological Effects of Exercise on Muscle Blood Flow Flow at rest versus during exercise Mechanisms for increased blood flow Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 3 Physiological Effects of Exercise on Oxygen Demand Oxygen uptake by pulmonary blood Regulation of respiration Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 4 Physiological Effects of Exercise on Metabolic Rate Muscle 100 x more heat than at rest In well trained athlete body heat can • ↑50 x for a few seconds • ↑ 20 x for few minutes Metabolic rate ↑ 2000 x Basal metabolic rate (70 kg): • • • • Bed = 1650 calories Eating = 1850 calories Sitting = 2000 calories Exercise = (170-100 calories/hour) Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 5 Physiological Effects of Exercise on Blood Glucose http://www.elmhurst.edu/~chm/vchembook/604glycogenesis.html Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 6 Physiological Effects of Exercise on Hydration Exercise ↑ body temperature as results of three factors: metabolic rate, environmental conditions, body temperature Net water = [liquid/food consumed + metabolism] – [respiratoryloss + GIloss + renalloss + sweatloss] Hypohydration versus euhydration versus hyperhydration Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 7 Sports Nutrition (ADA Position Paper “Nutrition and Athletic Performance”) Carbohydrate recommendations Protein recommendations Fat recommendations Dehydration Goals (pre-exercise, during exercise, post-exercise) Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 8 Sports Injuries By location • Lower extremities at greatest risk • Upper extremities – greatest risk not age but specific skill demands • Central body Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 9 Sports Injuries By injury type • • • • • • • • Overuse Strains (1st degree, 2nd degree, 3rd degree) Contusion/hematoma Sprains Fractures Dislocations Fractures Concussions (grade 1, grade 2, grade 3) Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 10 “HS Sports-Related Injury Surveillance Study” 2009-2010 RX561.05 - Soft Tissue Injuries 11 “HS Sports-Related Injury Surveillance Study” 2009-2010 RX561.05 - Soft Tissue Injuries 12 “HS Sports-Related Injury Surveillance Study” 2009-2010 RX561.05 - Soft Tissue Injuries 13 http://www.iaaf.org/mm/document/imported/42032.pdf RX561.05 - Soft Tissue Injuries 14 Stages of Sports Injury Rehabilitation Stage 1 – acute inflammatory process lasting up to 72 hours Stage 2 – regeneration and repair lasting 48 hours to 6 weeks Stage 3 – remodeling phase lasting 3 weeks to 12 months Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 15 Non-drug Treatment of Injuries Rest, Ice, Compression, Elevation Movement , Ice, Compression, Elevation Heat therapy Strapping/bracing Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 16 Drug Treatment of Injuries NSAID Opiate analgesics Corticosteroid injections Local anesthetics Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 17 Drug Treatment of Soft Tissue Injuries Skeletal-muscle relaxants Topical rubifacients Capsicum Drugs for bruising Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 18 CAMS Treatment of Soft Tissue Injuries Abrasions/cuts Stress Blisters Bruises Soft tissue injuries Cramps Pain Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 19 Exercise Guidelines Physical activity guidelines (2008) • Avoid inactivity • Some better than none • Any activity provides some benefit Metabolic equivalent units (MET) Cardiometabolic exercise (CME) - General health and gradual weight loss = 150 points/day or ~1000 points/week Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 20 CME Table Source: Excerpted from Tables 4.2 in Simon HB. The No Sweat Exercise Plan. Lose Weight, Get Healthy, and Live Longer. New York: McGraw-Hill; 2006. Activity Pace Duration CME Points Daily Activities Carpentry Moderate 30 minutes 100 Cleaning Heavy 30 minutes 150 Digging in yard Moderate 30 minutes 190 Mowing lawn Pushing hand mower 30 minutes 200 Pushing power mower 30 minutes 145 Raking lawn Moderate 30 minutes 130 Stair climbing Moderate, upstairs 10 minutes 100 Moderate, downstairs 10 minutes 30 Moderate 30 minutes 100 Washing car by hand Recreational Activities Aerobic dance Moderate 30 minutes 200 Biking Moderate 30 minutes 250 Golfing Pulling clubs 30 minutes 145 Jogging 12 minutes/mile 30 minutes 200 Rope jumping Moderate 15 minutes 200 Skiing Downhill or water 30 minutes 200 Cross-country 30 minutes 315 Swimming Moderate 30 minutes 230 Tennis Doubles 30 minutes 160 Singles 30 minutes 200 2130 minutes 125 Walking Moderate Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) Aerobic Exercise versus Resistance Exercise AET RET Improves CV reserve Increased muscle/bone mass/strength Increased skeletal muscle adaptation Improved psychological well being Decrease age-related accumulate of central body fat Decreased cognitive decline Trained older individuals sustain maximum exercise load with less CV stress and muscle fatigue Improved glycemic control and clearance of post-prandial lipids Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 22 Doping History goes back to ancient Egypt First laws governing doping in 1963 Prohibited substances Stimulants b2 agonists Narcotic analgesics Anti-estrogenic agents Cannabinoids Masking agents Anabolic agents Glucocorticosteroids Peptide hormones/analogs Prohibited methods Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 23 Performance Enhancement “Effects of caffeine ingestion on strength and endurance performance of normal young adults” Sharma Archna, Sandhu S Jaspal, Doping Journal (2012): 7(2) Caffeine is on the watch list of doping of International Olympic Committee (IOC) Maximum permissible urinary concentration by World AntiDoping Agency (WADA) is 12 µg/ml. 31 (17 male and 14 female) healthy university students with sedentary lifestyle (mean weight 63.0±2.9 kg, height 166.80±9.84 and age 24±2.25) reporting caffeine intake of ≤200 mg/week participated in the study the dosage of caffeine tested was 5 mg/kg BW Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 24 Performance Enhancement “Effects of caffeine ingestion on strength and endurance performance of normal young adults” Sharma Archna, Sandhu S Jaspal, Doping Journal (2012): 7(2) Caffeine is on the watch list of doping of International Olympic Committee (IOC) Maximum permissible urinary concentration by World AntiDoping Agency (WADA) is 12 µg/ml. 31 (17 male and 14 female) healthy university students with sedentary lifestyle (mean weight 63.0±2.9 kg, height 166.80±9.84 and age 24±2.25) reporting caffeine intake of ≤200 mg/week participated in the study the dosage of caffeine tested was 5 mg/kg BW Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 25 Performance Enhancement “Effects of caffeine ingestion on strength and endurance performance of normal young adults” Sharma Archna, Sandhu S Jaspal, Doping Journal (2012): 7(2) Distribution of Mean values of Peak Force with 5 mg/kg BW Caffeine Distribution of Mean values of Average Force with 5 mg/kg BW Caffeine* Distribution of Mean values of Fatigue index with 5 mg/kg BW Caffeine* Distribution of Mean values of Time to Exhaustion with 5 mg/kg BW Caffeine Distribution of Mean values of Urinary Caffeine concentration following 5 mg/kg BW Caffeine ingestion Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 26 Exercise Effects in Chronic Drug Use “Reduced Diabetic, Hypertensive and Cholesterol Medication Use With Walking” Paul. T. Williams, Medicine and Science in Sports Exercise (2008): 40(3): 433-443 Study: n = 40,795 walkers The ant-idiabetic, antihypertensive and LDL cholesterol-lower medication use may be reduced by walking, function of • Walking distance • Longest walk • Walking intensity Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 27 Special Case #1 – Adolescent Athlete Injury types and patterns differ from adult because of skill level, conditioning and musculoskeletal differences Common causes of injury Chronic injuries Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 28 Special Case #2 – Female Athlete (Female Athlete Triad) First described at the 1993 meeting of the American College of Sports Medicine (ACSM) Components: eating disordered, menstrual disorder, and osteoporosis Pathophysiology: Reduced energy availability Menstrual dysfunction Impaired bone health Endothelial dysfunction Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 29 Special Case #3 – Older Athlete Injury as barrier to exercise Age associated muscle atrophy and loss of strength Bone loss Connective tissue changes Intrinsic factors contributing to injury Extrinsic factors contributing to injury Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 30 References “Sports and Exercise Medicine for Pharmacists” Steven B. Kayne, Pharmaceutical Press (2006) Simon HB. The No Sweat Exercise Plan. Lose Weight, Get Healthy, and Live Longer. New York: McGraw-Hill; (2006) “Effects of caffeine ingestion on strength and endurance performance of normal young adults” Sharma Archna, Sandhu S Jaspal, Doping Journal (2012): 7(2) “Reduced Diabetic, Hypertensive and Cholesterol Medication Use With Walking” Paul. T. Williams, Medicine and Science in Sports Exercise (2008): 40(3): 433-443 Sports Exercise and Medicine for the Pharmacist (Fall 2012 MPA) 31