Macronutrient needs for power, endurance and strength sports
Energy and carbohydrate needs follow training load; protein sits at 1.2-2.0 g/kg and fat at 20-35% of energy. Endurance athletes need the most carbohydrate; strength athletes more protein.
Macronutrient guide by type of sport (carbohydrate bands and protein range: ACSM/AND/DC 2016)
| Sport type | Indian examples | Main energy system | Carbohydrate (g/kg/day) | Protein (g/kg/day) | Fat |
|---|---|---|---|---|---|
| Endurance | Marathon, 10,000 m, road cycling, long-distance swimming | Oxidative | 6-10; 8-12 at very high loads | 1.2-2.0 | 20-35% of energy |
| Strength and power | Weightlifting, wrestling, shot put, javelin, sprints | ATP-PC and glycolytic | About 4-7 (Slater & Phillips, 2011) | 1.2-2.0, often the upper part | 20-35% of energy |
| Combined (team and racquet) | Hockey, football, kabaddi, basketball, badminton, tennis | All three | 5-7 on moderate days; 6-10 on heavy days | 1.2-2.0 | 20-35% of energy |
| Skill-based, low energy | Archery, shooting, golf | Mainly ATP-PC, low total | 3-5 | 1.2-2.0 | 20-35% of energy |
Diet emphasis by type of sport
| Sport type | Diet emphasis |
|---|---|
| Endurance (aerobic power) | High daily carbohydrate; glycogen loading before races over 90 minutes; carbohydrate and fluid with sodium during long sessions; iron status; enough total energy |
| Strength and power (anaerobic power) | Protein in 0.3 g/kg doses after training and through the day; enough carbohydrate for repeated sets; creatine stores; energy surplus for muscle gain; watch power-to-weight |
| Combined (team and racquet) | Carbohydrate matched to training and match days; recovery snacks between matches in tournaments; fluids at every break; protein for repair |
How to work out an athlete's macronutrient needs
- 1Weigh the athlete and note the sport, position and training load (hours and intensity).
- 2Estimate energy: basal needs × activity factor, or add MET-based training energy to daily needs.
- 3★Carbohydrate = chosen g/kg × body weight; × 4 for kcal.
- 4★Protein = chosen g/kg × body weight; × 4 for kcal.
- 5Fat = remaining kcal ÷ 9; check it falls within 20-35% of energy.
- 6Adjust for goals (fat loss, muscle gain) and for rest, training and match days.
- 7Turn grams into Indian foods and spread them over meals around training.
★ one-way, controls the pace
Daily carbohydrate and protein for a hockey player
Arjun, a 70 kg hockey player, trains 2 hours a day (high load). His energy need is estimated at 3500 kcal. Plan carbohydrate at 7 g/kg and protein at 1.6 g/kg, then find fat in grams and the percentage of energy from each nutrient.
- Carbohydrate = 7 × 70 = 490 g → 490 × 4 = 1960 kcal.
- Protein = 1.6 × 70 = 112 g → 112 × 4 = 448 kcal.
- Energy left for fat = 3500 − 1960 − 448 = 1092 kcal.
- Fat = 1092 ÷ 9 = 121.3 g, about 121 g.
- Percentages: carbohydrate 1960 ÷ 3500 = 56%; protein 448 ÷ 3500 = 12.8%; fat 1092 ÷ 3500 = 31.2%.
- Check: 56 + 12.8 + 31.2 = 100%. Fat is inside the 20-35% range.
Carbohydrate 490 g (56%), protein 112 g (12.8%), fat about 121 g (31.2%) in a 3500 kcal day (fat rounded to the nearest gram, percentages to one decimal).
In a sports hostel the same dal-rice-chapati menu serves everyone, but cereal portions and protein extras change: a distance runner takes more rice and chapati, a weightlifter more paneer, eggs, milk or chicken. Planning by g/kg makes these portions exact rather than guessed.
2 marks: “State the carbohydrate requirement of endurance athletes.” 6-10 g/kg/day for 1-3 hours of daily training, rising to 8-12 g/kg/day for 4-5 hours or more (ACSM/AND/DC 2016).
5 marks: “Compare the macronutrient needs of endurance and strength athletes.” Carbohydrate higher in endurance (6-10 vs about 4-7 g/kg); protein 1.2-2.0 g/kg for both (ACSM 2016), often the upper part for strength; fat 20-35% for both; diet emphasis for each.
10 marks: “Discuss the macronutrient requirements for power, endurance and strength-training sports with an example.” Planning order, a sport-type table, diet emphasis, the step-by-step method and a worked example with percentages.
Plan in the order E-C-P-F: Energy, then Carbohydrate g/kg, then Protein g/kg; Fat fills the rest.